[Bugfix] Improve engine ready timeout error message (#35616)

Signed-off-by: damaozi <1811866786@qq.com>

.buildkite/hardware_tests/amd.yaml

@@ -1,6 +1,7 @@
-group: Hardware
+group: Hardware - AMD Build 
 steps:
   - label: "AMD: :docker: build image"
+    key: image-build-amd
     depends_on: []
     device: amd_cpu
     no_plugin: true
@@ -9,7 +10,7 @@ steps:
       docker build
       --build-arg max_jobs=16
       --build-arg REMOTE_VLLM=1
-      --build-arg ARG_PYTORCH_ROCM_ARCH='gfx90a;gfx942'
+      --build-arg ARG_PYTORCH_ROCM_ARCH='gfx942;gfx950'
       --build-arg VLLM_BRANCH=$BUILDKITE_COMMIT
       --tag "rocm/vllm-ci:${BUILDKITE_COMMIT}"
       -f docker/Dockerfile.rocm

.buildkite/image_build/image_build.sh

@@ -8,7 +8,7 @@ clean_docker_tag() {
 }
 
 print_usage_and_exit() {
-    echo "Usage: $0 <registry> <repo> <commit> <branch> <vllm_use_precompiled> <vllm_merge_base_commit> <cache_from> <cache_to>"
+    echo "Usage: $0 <registry> <repo> <commit> <branch> <image_tag> [<image_tag_latest>]"
     exit 1
 }
 
@@ -142,11 +142,16 @@ resolve_parent_commit() {
 
 print_bake_config() {
     echo "--- :page_facing_up: Resolved bake configuration"
-    BAKE_CONFIG_FILE="bake-config-build-${BUILDKITE_BUILD_NUMBER:-local}.json"
+    # Write to a temp directory to avoid polluting the repo root (which is the
+    # Docker build context). Files left in the repo root get COPY'd into the
+    # image and can cause duplicate artifact uploads from downstream steps.
+    local bake_tmp
+    bake_tmp="$(mktemp -d)"
+    BAKE_CONFIG_FILE="${bake_tmp}/bake-config-build-${BUILDKITE_BUILD_NUMBER:-local}.json"
     docker buildx bake -f "${VLLM_BAKE_FILE_PATH}" -f "${CI_HCL_PATH}" --print "${TARGET}" | tee "${BAKE_CONFIG_FILE}" || true
     echo "Saved bake config to ${BAKE_CONFIG_FILE}"
     echo "--- :arrow_down: Uploading bake config to Buildkite"
-    buildkite-agent artifact upload "${BAKE_CONFIG_FILE}"
+    (cd "$(dirname "${BAKE_CONFIG_FILE}")" && buildkite-agent artifact upload "$(basename "${BAKE_CONFIG_FILE}")")
 }
 
 #################################
@@ -154,7 +159,7 @@ print_bake_config() {
 #################################
 print_instance_info
 
-if [[ $# -lt 7 ]]; then
+if [[ $# -lt 5 ]]; then
     print_usage_and_exit
 fi
 
@@ -163,10 +168,8 @@ REGISTRY=$1
 REPO=$2
 BUILDKITE_COMMIT=$3
 BRANCH=$4
-VLLM_USE_PRECOMPILED=$5
-VLLM_MERGE_BASE_COMMIT=$6
-IMAGE_TAG=$7
-IMAGE_TAG_LATEST=${8:-} # only used for main branch, optional
+IMAGE_TAG=$5
+IMAGE_TAG_LATEST=${6:-} # only used for main branch, optional
 
 # build config
 TARGET="test-ci"
@@ -193,8 +196,6 @@ export CACHE_FROM
 export CACHE_FROM_BASE_BRANCH
 export CACHE_FROM_MAIN
 export CACHE_TO
-export VLLM_USE_PRECOMPILED
-export VLLM_MERGE_BASE_COMMIT
 
 # print args
 echo "--- :mag: Arguments"
@@ -202,8 +203,6 @@ echo "REGISTRY: ${REGISTRY}"
 echo "REPO: ${REPO}"
 echo "BUILDKITE_COMMIT: ${BUILDKITE_COMMIT}"
 echo "BRANCH: ${BRANCH}"
-echo "VLLM_USE_PRECOMPILED: ${VLLM_USE_PRECOMPILED}"
-echo "VLLM_MERGE_BASE_COMMIT: ${VLLM_MERGE_BASE_COMMIT}"
 echo "IMAGE_TAG: ${IMAGE_TAG}"
 echo "IMAGE_TAG_LATEST: ${IMAGE_TAG_LATEST}"
 

.buildkite/image_build/image_build.yaml

@@ -5,8 +5,7 @@ steps:
     depends_on: []
     timeout_in_minutes: 600
     commands:
-    - if [[ "$BUILDKITE_BRANCH" != "main" ]]; then .buildkite/image_build/image_build.sh $REGISTRY $REPO $BUILDKITE_COMMIT $BRANCH $VLLM_USE_PRECOMPILED $VLLM_MERGE_BASE_COMMIT $IMAGE_TAG; fi
-    - if [[ "$BUILDKITE_BRANCH" == "main" ]]; then .buildkite/image_build/image_build.sh $REGISTRY $REPO $BUILDKITE_COMMIT $BRANCH $VLLM_USE_PRECOMPILED $VLLM_MERGE_BASE_COMMIT $IMAGE_TAG $IMAGE_TAG_LATEST; fi
+    - if [[ "$BUILDKITE_BRANCH" == "main" ]]; then .buildkite/image_build/image_build.sh $REGISTRY $REPO $BUILDKITE_COMMIT $BRANCH $IMAGE_TAG $IMAGE_TAG_LATEST; else .buildkite/image_build/image_build.sh $REGISTRY $REPO $BUILDKITE_COMMIT $BRANCH $IMAGE_TAG; fi
     retry:
       automatic:
         - exit_status: -1  # Agent was lost

.buildkite/image_build/image_build_cpu.sh

@@ -11,10 +11,10 @@ REPO=$2
 BUILDKITE_COMMIT=$3
 
 # authenticate with AWS ECR
-aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin $REGISTRY
+aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin "$REGISTRY"
 
 # skip build if image already exists
-if [[ -z $(docker manifest inspect $REGISTRY/$REPO:$BUILDKITE_COMMIT-cpu) ]]; then
+if [[ -z $(docker manifest inspect "$REGISTRY"/"$REPO":"$BUILDKITE_COMMIT"-cpu) ]]; then
   echo "Image not found, proceeding with build..."
 else
   echo "Image found"
@@ -24,13 +24,13 @@ fi
 # build
 docker build --file docker/Dockerfile.cpu \
   --build-arg max_jobs=16 \
-  --build-arg buildkite_commit=$BUILDKITE_COMMIT \
+  --build-arg buildkite_commit="$BUILDKITE_COMMIT" \
   --build-arg VLLM_CPU_AVX512BF16=true \
   --build-arg VLLM_CPU_AVX512VNNI=true \
   --build-arg VLLM_CPU_AMXBF16=true \
-  --tag $REGISTRY/$REPO:$BUILDKITE_COMMIT-cpu \
+  --tag "$REGISTRY"/"$REPO":"$BUILDKITE_COMMIT"-cpu \
   --target vllm-test \
   --progress plain .
 
 # push
-docker push $REGISTRY/$REPO:$BUILDKITE_COMMIT-cpu
+docker push "$REGISTRY"/"$REPO":"$BUILDKITE_COMMIT"-cpu

.buildkite/image_build/image_build_cpu_arm64.sh

@@ -11,10 +11,10 @@ REPO=$2
 BUILDKITE_COMMIT=$3
 
 # authenticate with AWS ECR
-aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin $REGISTRY
+aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin "$REGISTRY"
 
 # skip build if image already exists
-if [[ -z $(docker manifest inspect $REGISTRY/$REPO:$BUILDKITE_COMMIT-cpu) ]]; then
+if [[ -z $(docker manifest inspect "$REGISTRY"/"$REPO":"$BUILDKITE_COMMIT"-arm64-cpu) ]]; then
   echo "Image not found, proceeding with build..."
 else
   echo "Image found"
@@ -24,10 +24,10 @@ fi
 # build
 docker build --file docker/Dockerfile.cpu \
   --build-arg max_jobs=16 \
-  --build-arg buildkite_commit=$BUILDKITE_COMMIT \
-  --tag $REGISTRY/$REPO:$BUILDKITE_COMMIT-cpu \
+  --build-arg buildkite_commit="$BUILDKITE_COMMIT" \
+  --tag "$REGISTRY"/"$REPO":"$BUILDKITE_COMMIT"-arm64-cpu \
   --target vllm-test \
   --progress plain .
 
 # push
-docker push $REGISTRY/$REPO:$BUILDKITE_COMMIT-cpu
+docker push "$REGISTRY"/"$REPO":"$BUILDKITE_COMMIT"-arm64-cpu

.buildkite/image_build/image_build_hpu.sh

@@ -11,10 +11,10 @@ REPO=$2
 BUILDKITE_COMMIT=$3
 
 # authenticate with AWS ECR
-aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin $REGISTRY
+aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin "$REGISTRY"
 
 # skip build if image already exists
-if [[ -z $(docker manifest inspect $REGISTRY/$REPO:$BUILDKITE_COMMIT-hpu) ]]; then
+if [[ -z $(docker manifest inspect "$REGISTRY"/"$REPO":"$BUILDKITE_COMMIT"-hpu) ]]; then
   echo "Image not found, proceeding with build..."
 else
   echo "Image found"
@@ -25,10 +25,10 @@ fi
 docker build \
   --file tests/pytorch_ci_hud_benchmark/Dockerfile.hpu \
   --build-arg max_jobs=16 \
-  --build-arg buildkite_commit=$BUILDKITE_COMMIT \
-  --tag $REGISTRY/$REPO:$BUILDKITE_COMMIT-hpu \
+  --build-arg buildkite_commit="$BUILDKITE_COMMIT" \
+  --tag "$REGISTRY"/"$REPO":"$BUILDKITE_COMMIT"-hpu \
   --progress plain \
   https://github.com/vllm-project/vllm-gaudi.git
 
 # push
-docker push $REGISTRY/$REPO:$BUILDKITE_COMMIT-hpu
+docker push "$REGISTRY"/"$REPO":"$BUILDKITE_COMMIT"-hpu

.buildkite/lm-eval-harness/run-lm-eval-chartqa-vllm-vlm-baseline.sh

@@ -2,7 +2,7 @@
 # We can use this script to compute baseline accuracy on chartqa for vllm.
 #
 # Make sure you have lm-eval-harness installed:
-#   pip install "lm-eval[api]>=0.4.9.2"
+#   pip install "lm-eval[api]>=0.4.11"
 
 usage() {
     echo``
@@ -41,4 +41,4 @@ lm_eval --model vllm-vlm \
   --tasks chartqa \
   --batch_size auto \
   --apply_chat_template \
-  --limit $LIMIT
+  --limit "$LIMIT"

.buildkite/lm-eval-harness/run-lm-eval-gsm-hf-baseline.sh

@@ -2,7 +2,7 @@
 # We can use this script to compute baseline accuracy on GSM for transformers.
 #
 # Make sure you have lm-eval-harness installed:
-#   pip install "lm-eval[api]>=0.4.9.2"
+#   pip install "lm-eval[api]>=0.4.11"
 
 usage() {
     echo``

.buildkite/lm-eval-harness/run-lm-eval-gsm-vllm-baseline.sh

@@ -3,7 +3,7 @@
 # We use this for fp8, which HF does not support.
 #
 # Make sure you have lm-eval-harness installed:
-#   pip install "lm-eval[api]>=0.4.9.2"
+#   pip install "lm-eval[api]>=0.4.11"
 
 usage() {
     echo``

.buildkite/lm-eval-harness/run-lm-eval-mmlupro-vllm-baseline.sh

@@ -3,7 +3,7 @@
 # We use this for fp8, which HF does not support.
 #
 # Make sure you have lm-eval-harness installed:
-#   pip install "lm-eval[api]>=0.4.9.2"
+#   pip install "lm-eval[api]>=0.4.11"
 
 usage() {
     echo``
@@ -20,14 +20,11 @@ usage() {
     echo
 }
 
-while getopts "m:b:l:f:t:" OPT; do
+while getopts "m:l:f:t:" OPT; do
   case ${OPT} in
     m )
         MODEL="$OPTARG"
         ;;
-    b )
-        BATCH_SIZE="$OPTARG"
-        ;;
     l )
         LIMIT="$OPTARG"
         ;;

.buildkite/performance-benchmarks/scripts/compare-json-results.py

@@ -9,8 +9,10 @@ import json
 import os
 from dataclasses import dataclass
 from importlib import util
+from pathlib import Path
 
 import pandas as pd
+import regex as re
 
 pd.options.display.float_format = "{:.2f}".format
 plotly_found = util.find_spec("plotly.express") is not None
@@ -275,6 +277,131 @@ def _apply_two_decimals(
     return styler.format({c: "{:.2f}" for c in num_cols}, na_rep="")
 
 
+# -----------------------------
+# Export helpers (Excel + CSV)
+# -----------------------------
+def _sanitize_sheet_name(name: str) -> str:
+    """
+    Excel sheet constraints:
+      - max 31 chars
+      - cannot contain: : \ / ? * [ ]
+      - cannot be empty
+    """
+    name = "sheet" if name is None else str(name)
+    name = re.sub(r"[:\\/?*\[\]]", "_", name)
+    name = name.strip().strip("'")
+    name = re.sub(r"\s+", " ", name)
+    if not name:
+        name = "sheet"
+    return name[:31]
+
+
+def _group_to_sheet_base(group_cols: list[str], gkey_tuple) -> str:
+    d = dict(zip(group_cols, gkey_tuple))
+    model = d.get("Model", "model")
+    model_short = str(model).split("/")[-1]
+    ilen = d.get("Input Len", "")
+    olen = d.get("Output Len", "")
+    lens = f"_{ilen}x{olen}" if ilen != "" and olen != "" else ""
+    return _sanitize_sheet_name(f"{model_short}{lens}")
+
+
+def _write_tables_to_excel_sheet(
+    writer: pd.ExcelWriter, sheet: str, blocks: list[tuple[str, pd.DataFrame]]
+):
+    startrow = 0
+    for title, df in blocks:
+        pd.DataFrame([[title]]).to_excel(
+            writer, sheet_name=sheet, index=False, header=False, startrow=startrow
+        )
+        startrow += 1
+        df.to_excel(writer, sheet_name=sheet, index=False, startrow=startrow)
+        startrow += len(df) + 3
+
+
+def _safe_filename(s: str) -> str:
+    s = re.sub(r"[^\w\-.]+", "_", str(s).strip())
+    return s[:180] if len(s) > 180 else s
+
+
+# -----------------------------
+# vLLM environment export helper
+# -----------------------------
+def _parse_vllm_env_txt(env_path: Path) -> pd.DataFrame:
+    """Parse vllm_env.txt into a flat table (Section, Key, Value).
+
+    Supports:
+      - section headers as standalone lines (no ':' or '=')
+      - key-value lines like 'OS: Ubuntu ...'
+      - env var lines like 'HF_HOME=/data/hf'
+    """
+    lines = env_path.read_text(encoding="utf-8", errors="replace").splitlines()
+    section = "General"
+    rows: list[dict] = []
+
+    def set_section(s: str):
+        nonlocal section
+        s = (s or "").strip()
+        if s:
+            section = s
+
+    for raw in lines:
+        stripped = raw.strip()
+        if not stripped:
+            continue
+        # divider lines like =====
+        if set(stripped) <= {"="}:
+            continue
+
+        # section header heuristic: short standalone line
+        if ":" not in stripped and "=" not in stripped and len(stripped) <= 64:
+            if stripped.lower().startswith("collecting environment information"):
+                continue
+            set_section(stripped)
+            continue
+
+        # env var style: KEY=VALUE (and not a URL with :)
+        if "=" in stripped and ":" not in stripped:
+            k, v = stripped.split("=", 1)
+            k = k.strip()
+            v = v.strip()
+            if k:
+                rows.append({"Section": section, "Key": k, "Value": v})
+            continue
+
+        # key: value
+        if ":" in stripped:
+            k, v = stripped.split(":", 1)
+            k = k.strip()
+            v = v.strip()
+            if k:
+                rows.append({"Section": section, "Key": k, "Value": v})
+            continue
+
+    return pd.DataFrame(rows, columns=["Section", "Key", "Value"])
+
+
+def _load_env_df_for_inputs(args, files: list[str]) -> pd.DataFrame | None:
+    """Load vllm_env.txt next to the *original* input JSON file.
+
+    Note: when only one -f is provided, the script may split JSON into ./splits/...,
+    but vllm_env.txt typically lives next to the original benchmark_results.json.
+    """
+    base_dir: Path | None = None
+    if getattr(args, "file", None):
+        base_dir = Path(args.file[0]).resolve().parent
+    elif files:
+        base_dir = Path(files[0]).resolve().parent
+    if base_dir is None:
+        return None
+
+    env_path = base_dir / "vllm_env.txt"
+    if not env_path.exists():
+        return None
+    df = _parse_vllm_env_txt(env_path)
+    return df
+
+
 # -----------------------------
 # Valid max concurrency summary helpers
 # -----------------------------
@@ -428,7 +555,6 @@ def build_valid_max_concurrency_summary_html(
 
     summary_df = pd.DataFrame(rows)
 
-    # --- Coerce numeric columns so Styler doesn't miss them due to object dtype ---
     for c in summary_df.columns:
         if c == "Configuration":
             continue
@@ -436,12 +562,10 @@ def build_valid_max_concurrency_summary_html(
 
     both_col = f"Max {conc_col} (Both)"
 
-    # --- Strict 2-decimal formatting for ALL non-Configuration columns ---
     formatters = {}
     for c in summary_df.columns:
         if c == "Configuration":
             continue
-        # default argument binds per-column formatter correctly
         formatters[c] = lambda v: "" if pd.isna(v) else f"{float(v):.2f}"
 
     styler = summary_df.style.format(formatters)
@@ -460,6 +584,95 @@ def build_valid_max_concurrency_summary_html(
     return title + styler.to_html(table_attributes='border="1" class="dataframe"')
 
 
+def build_valid_max_concurrency_summary_df(
+    tput_group_df: pd.DataFrame | None,
+    ttft_group_df: pd.DataFrame | None,
+    tpot_group_df: pd.DataFrame | None,
+    conc_col: str,
+    args,
+) -> pd.DataFrame | None:
+    if ttft_group_df is None and tpot_group_df is None:
+        return None
+
+    ttft_cols = (
+        _config_value_columns(ttft_group_df, conc_col)
+        if ttft_group_df is not None
+        else []
+    )
+    tpot_cols = (
+        _config_value_columns(tpot_group_df, conc_col)
+        if tpot_group_df is not None
+        else []
+    )
+    tput_cols = (
+        _config_value_columns(tput_group_df, conc_col)
+        if tput_group_df is not None
+        else []
+    )
+
+    if ttft_group_df is not None and tpot_group_df is not None:
+        cfg_cols = [c for c in ttft_cols if c in tpot_cols]
+        if tput_group_df is not None:
+            cfg_cols = [c for c in cfg_cols if c in tput_cols] or cfg_cols
+    else:
+        cfg_cols = ttft_cols or tpot_cols
+
+    if not cfg_cols:
+        cfg_cols = sorted(set(ttft_cols) | set(tpot_cols) | set(tput_cols), key=str)
+
+    rows = []
+    for cfg in cfg_cols:
+        ttft_max = (
+            _max_concurrency_ok(ttft_group_df, conc_col, cfg, args.ttft_max_ms)
+            if ttft_group_df is not None
+            else pd.NA
+        )
+        tpot_max = (
+            _max_concurrency_ok(tpot_group_df, conc_col, cfg, args.tpot_max_ms)
+            if tpot_group_df is not None
+            else pd.NA
+        )
+        both = (
+            pd.NA
+            if (pd.isna(ttft_max) or pd.isna(tpot_max))
+            else min(ttft_max, tpot_max)
+        )
+
+        tput_at_both = (
+            _value_at_concurrency(tput_group_df, conc_col, cfg, both)
+            if tput_group_df is not None
+            else pd.NA
+        )
+        ttft_at_both = (
+            _value_at_concurrency(ttft_group_df, conc_col, cfg, both)
+            if ttft_group_df is not None
+            else pd.NA
+        )
+        tpot_at_both = (
+            _value_at_concurrency(tpot_group_df, conc_col, cfg, both)
+            if tpot_group_df is not None
+            else pd.NA
+        )
+
+        rows.append(
+            {
+                "Configuration": cfg,
+                f"Max {conc_col} (TTFT ≤ {args.ttft_max_ms:g} ms)": ttft_max,
+                f"Max {conc_col} (TPOT ≤ {args.tpot_max_ms:g} ms)": tpot_max,
+                f"Max {conc_col} (Both)": both,
+                "Output Tput @ Both (tok/s)": tput_at_both,
+                "TTFT @ Both (ms)": ttft_at_both,
+                "TPOT @ Both (ms)": tpot_at_both,
+            }
+        )
+
+    df = pd.DataFrame(rows)
+    for c in df.columns:
+        if c != "Configuration":
+            df[c] = pd.to_numeric(df[c], errors="coerce")
+    return df
+
+
 # -----------------------------
 # Plot helper
 # -----------------------------
@@ -537,6 +750,21 @@ def build_parser() -> argparse.ArgumentParser:
         default=100.0,
         help="Reference limit for TPOT plots (ms)",
     )
+
+    # ---- NEW: export options ----
+    parser.add_argument(
+        "--excel-out",
+        type=str,
+        default="perf_comparison.xlsx",
+        help="Write one sheet per (Model, Dataset, Input Len, Output Len).",
+    )
+    parser.add_argument(
+        "--csv-out-dir",
+        type=str,
+        default="",
+        help="If set, write per-group per-metric CSVs into this directory.",
+    )
+
     return parser
 
 
@@ -657,7 +885,6 @@ def maybe_write_plot(
         markers=True,
     )
 
-    # Ensure plot hover + y tick labels are also 2 decimals.
     fig.update_traces(hovertemplate="%{y:.2f}<extra></extra>")
     fig.update_yaxes(tickformat=".2f")
 
@@ -730,87 +957,151 @@ def write_report_group_first(
         for metric_label, (df, _) in metric_cache.items()
     }
 
-    with open("perf_comparison.html", "w", encoding="utf-8") as main_fh:
-        main_fh.write('<meta charset="utf-8">\n')
-        for gkey in group_keys:
-            gkey_tuple = normalize_group_key(gkey)
-            suffix = build_group_suffix(group_cols_canonical, gkey_tuple)
-            sub_path = group_filename(gkey_tuple)
-            group_header = (
-                '<div style="font-size: 1.4em; font-weight: 700; '
-                'margin: 18px 0 10px 0;">'
-                f"{_html.escape(suffix)}"
-                "</div>\n"
-            )
+    csv_dir = Path(args.csv_out_dir) if args.csv_out_dir else None
+    if csv_dir:
+        csv_dir.mkdir(parents=True, exist_ok=True)
 
-            main_fh.write(group_header)
-            with open(sub_path, "w", encoding="utf-8") as sub_fh:
-                sub_fh.write('<meta charset="utf-8">\n')
-                sub_fh.write(group_header)
-                tput_group_df = None
-                ttft_group_df = None
-                tpot_group_df = None
-                conc_col = args.xaxis
+    excel_path = args.excel_out or "perf_comparison.xlsx"
+    with pd.ExcelWriter(excel_path, engine="openpyxl") as xw:
+        # ---- Environment sheet (first) ----
+        env_sheet = _sanitize_sheet_name("Environment")
+        env_df = _load_env_df_for_inputs(args, files)
+        if env_df is None or env_df.empty:
+            pd.DataFrame(
+                [
+                    {
+                        "Section": "Environment",
+                        "Key": "vllm_env.txt",
+                        "Value": "NOT FOUND (or empty)",
+                    }
+                ]
+            ).to_excel(xw, sheet_name=env_sheet, index=False)
+        else:
+            env_df.to_excel(xw, sheet_name=env_sheet, index=False)
+        with open("perf_comparison.html", "w", encoding="utf-8") as main_fh:
+            main_fh.write('<meta charset="utf-8">\n')
+            for gkey in group_keys:
+                gkey_tuple = normalize_group_key(gkey)
+                suffix = build_group_suffix(group_cols_canonical, gkey_tuple)
+                sub_path = group_filename(gkey_tuple)
+                group_header = (
+                    '<div style="font-size: 1.4em; font-weight: 700; '
+                    'margin: 18px 0 10px 0;">'
+                    f"{_html.escape(suffix)}"
+                    "</div>\n"
+                )
 
-                for metric_label in plan.data_cols:
-                    gb = metric_groupbys[metric_label]
-                    df_sorted, raw_data_cols = metric_cache[metric_label]
+                main_fh.write(group_header)
 
-                    try:
-                        group_df = gb.get_group(gkey)
-                    except KeyError:
-                        missing = (
-                            '<div style="font-size: 1.1em; font-weight: 600; '
-                            'margin: 10px 0;">'
-                            f"{_html.escape(metric_label)} — missing for this group"
-                            "</div>\n"
+                sheet = _group_to_sheet_base(group_cols_canonical, gkey_tuple)
+                sheet_base = sheet
+                dedup_i = 1
+                while sheet in xw.sheets:
+                    dedup_i += 1
+                    sheet = _sanitize_sheet_name(f"{sheet_base}_{dedup_i}")
+
+                excel_blocks: list[tuple[str, pd.DataFrame]] = []
+
+                with open(sub_path, "w", encoding="utf-8") as sub_fh:
+                    sub_fh.write('<meta charset="utf-8">\n')
+                    sub_fh.write(group_header)
+                    tput_group_df = None
+                    ttft_group_df = None
+                    tpot_group_df = None
+                    conc_col = args.xaxis
+
+                    for metric_label in plan.data_cols:
+                        gb = metric_groupbys[metric_label]
+                        df_sorted, raw_data_cols = metric_cache[metric_label]
+
+                        try:
+                            group_df = gb.get_group(gkey)
+                        except KeyError:
+                            missing = (
+                                '<div style="font-size: 1.1em; font-weight: 600; '
+                                'margin: 10px 0;">'
+                                f"{_html.escape(metric_label)} — missing for this group"
+                                "</div>\n"
+                            )
+                            main_fh.write(missing)
+                            sub_fh.write(missing)
+                            continue
+
+                        if conc_col not in group_df.columns:
+                            conc_col = _find_concurrency_col(group_df)
+
+                        mn = metric_label.lower().strip()
+                        if "tok/s" in mn:
+                            tput_group_df = group_df
+                        elif "ttft" in mn:
+                            ttft_group_df = group_df
+                        elif mn in ("p99", "median") or "tpot" in mn:
+                            tpot_group_df = group_df
+
+                        display_group = group_df.drop(
+                            columns=group_cols_canonical, errors="ignore"
                         )
 
-                        main_fh.write(missing)
-                        sub_fh.write(missing)
-                        continue
+                        html = render_metric_table_html(
+                            display_group, metric_label, suffix, args
+                        )
+                        main_fh.write(html)
+                        sub_fh.write(html)
 
-                    if conc_col not in group_df.columns:
-                        conc_col = _find_concurrency_col(group_df)
+                        maybe_write_plot(
+                            main_fh,
+                            sub_fh,
+                            group_df=group_df,
+                            raw_data_cols=raw_data_cols,
+                            metric_label=metric_label,
+                            y_axis_col=y_axis_col,
+                            args=args,
+                        )
 
-                    mn = metric_label.lower().strip()
-                    if "tok/s" in mn:
-                        tput_group_df = group_df
-                    elif "ttft" in mn:
-                        ttft_group_df = group_df
-                    elif mn in ("p99", "median") or "tpot" in mn:
-                        tpot_group_df = group_df
+                        excel_blocks.append(
+                            (metric_label, display_group.reset_index(drop=True))
+                        )
+                        if csv_dir:
+                            fn = _safe_filename(
+                                f"{sheet}__{metric_label}".replace(" ", "_").replace(
+                                    "/", "_"
+                                )
+                            )
+                            display_group.to_csv(csv_dir / f"{fn}.csv", index=False)
 
-                    display_group = group_df.drop(
-                        columns=group_cols_canonical, errors="ignore"
-                    )
-
-                    html = render_metric_table_html(
-                        display_group, metric_label, suffix, args
-                    )
-                    main_fh.write(html)
-                    sub_fh.write(html)
-
-                    maybe_write_plot(
-                        main_fh,
-                        sub_fh,
-                        group_df=group_df,
-                        raw_data_cols=raw_data_cols,
-                        metric_label=metric_label,
-                        y_axis_col=y_axis_col,
+                    summary_html = build_valid_max_concurrency_summary_html(
+                        tput_group_df=tput_group_df,
+                        ttft_group_df=ttft_group_df,
+                        tpot_group_df=tpot_group_df,
+                        conc_col=conc_col,
                         args=args,
                     )
+                    if summary_html:
+                        main_fh.write(summary_html)
+                        sub_fh.write(summary_html)
 
-                summary_html = build_valid_max_concurrency_summary_html(
-                    tput_group_df=tput_group_df,
-                    ttft_group_df=ttft_group_df,
-                    tpot_group_df=tpot_group_df,
-                    conc_col=conc_col,
-                    args=args,
-                )
-                if summary_html:
-                    main_fh.write(summary_html)
-                    sub_fh.write(summary_html)
+                    summary_df = build_valid_max_concurrency_summary_df(
+                        tput_group_df=tput_group_df,
+                        ttft_group_df=ttft_group_df,
+                        tpot_group_df=tpot_group_df,
+                        conc_col=conc_col,
+                        args=args,
+                    )
+                    if summary_df is not None:
+                        excel_blocks.append(
+                            ("Valid Max Concurrency Summary", summary_df)
+                        )
+                        if csv_dir:
+                            fn = _safe_filename(
+                                f"{sheet}__Valid_Max_Concurrency_Summary"
+                            )
+                            summary_df.to_csv(csv_dir / f"{fn}.csv", index=False)
+
+                _write_tables_to_excel_sheet(xw, sheet, excel_blocks)
+
+    print(f"Wrote Excel: {excel_path}")
+    if csv_dir:
+        print(f"Wrote CSVs under: {csv_dir}")
 
 
 def main():

.buildkite/performance-benchmarks/scripts/run-performance-benchmarks.sh

@@ -1,6 +1,4 @@
 #!/bin/bash
-
-# This script should be run inside the CI process
 # This script assumes that we are already inside the vllm/ directory
 # Benchmarking results will be available inside vllm/benchmarks/results/
 
@@ -9,14 +7,19 @@
 set -x
 set -o pipefail
 
+# Environment-driven debug controls (like ON_CPU=1)
+DRY_RUN="${DRY_RUN:-0}"
+MODEL_FILTER="${MODEL_FILTER:-}"
+DTYPE_FILTER="${DTYPE_FILTER:-}"
+
 check_gpus() {
   if command -v nvidia-smi; then
     # check the number of GPUs and GPU type.
-    declare -g gpu_count=$(nvidia-smi --list-gpus | wc -l)
+    declare -g gpu_count=$(nvidia-smi --list-gpus | grep -c . || true)
   elif command -v amd-smi; then
-    declare -g gpu_count=$(amd-smi list | grep 'GPU' | wc -l)
+    declare -g gpu_count=$(amd-smi list | grep -c 'GPU' || true)
   elif command -v hl-smi; then
-    declare -g gpu_count=$(hl-smi --list | grep -i "Module ID" | wc -l)
+    declare -g gpu_count=$(hl-smi --list | grep -ci "Module ID" || true)
   fi
 
   if [[ $gpu_count -gt 0 ]]; then
@@ -44,7 +47,7 @@ check_cpus() {
   declare -g numa_count=$(lscpu | grep "NUMA node(s):" | awk '{print $3}')
   if [[ $numa_count -gt 0 ]]; then
     echo "NUMA found."
-    echo $numa_count
+    echo "$numa_count"
   else
     echo "Need at least 1 NUMA to run benchmarking."
     exit 1
@@ -112,13 +115,12 @@ json2envs() {
 }
 
 wait_for_server() {
-  # wait for vllm server to start
-  # return 1 if vllm server crashes
   local timeout_val="1200"
   timeout "$timeout_val" bash -c '
-    until curl -X POST localhost:8000/v1/completions; do
+    until curl -sf http://localhost:8000/v1/models >/dev/null; do
       sleep 1
-    done' && return 0 || return 1
+    done
+  '
 }
 
 kill_processes_launched_by_current_bash() {
@@ -252,37 +254,16 @@ run_benchmark_tests() {
   done
 }
 
-run_latency_tests() {
-  run_benchmark_tests "latency" "$1"
-}
+run_latency_tests() { run_benchmark_tests "latency" "$1"; }
+run_startup_tests() { run_benchmark_tests "startup" "$1"; }
+run_throughput_tests() { run_benchmark_tests "throughput" "$1"; }
 
-run_startup_tests() {
-  run_benchmark_tests "startup" "$1"
-}
-
-run_throughput_tests() {
-  run_benchmark_tests "throughput" "$1"
-}
-
-run_serving_tests() {
-  # run serving tests using `vllm bench serve` command
-  # $1: a json file specifying serving test cases
-  #
-  # Supported JSON formats:
-  # 1) Plain format: top-level array
-  #    [ { "test_name": "...", "server_parameters": {...}, ... }, ... ]
-  #
-  # 2) Default parameters field + plain format tests
-  #    {
-  #      "defaults": { ... },
-  #      "tests": [ { "test_name": "...", "server_parameters": {...}, ... }, ... ]
-  #    }
-
-  local serving_test_file
-  serving_test_file=$1
-
-  # Iterate over serving tests
-  jq -c '
+merge_serving_tests_stream() {
+  # Emit merged serving test objects, optionally filtered by MODEL_FILTER/DTYPE_FILTER in DRY_RUN mode.
+  # This helper does NOT modify JSON; it only filters the stream in dry-run mode.
+  local serving_test_file="$1"
+  # shellcheck disable=SC2016
+  local merged='
     if type == "array" then
       # Plain format: test cases array
       .[]
@@ -304,7 +285,50 @@ run_serving_tests() {
     else
       error("Unsupported serving test file format: must be array or object with .tests")
     end
-  ' "$serving_test_file" | while read -r params; do
+  '
+
+  jq -c "$merged" "$serving_test_file" | \
+  if [[ "${DRY_RUN:-0}" == "1" && ( "${MODEL_FILTER}${DTYPE_FILTER}" != "" ) ]]; then
+    jq -c --arg model "$MODEL_FILTER" --arg dtype "$DTYPE_FILTER" '
+      select((($model|length)==0)
+             or ((.server_parameters.model // "") == $model)
+             or ((.client_parameters.model // "") == $model))
+      | select((($dtype|length)==0) or ((.server_parameters.dtype // "") == $dtype))
+    '
+  else
+    cat
+  fi
+}
+
+run_serving_tests() {
+  # run serving tests using `vllm bench serve` command
+  # $1: a json file specifying serving test cases
+  #
+  # Supported JSON formats:
+  # 1) Plain format: top-level array
+  #    [ { "test_name": "...", "server_parameters": {...}, ... }, ... ]
+  #
+  # 2) Default parameters field + plain format tests
+  #    {
+  #      "defaults": { ... },
+  #      "tests": [ { "test_name": "...", "server_parameters": {...}, ... }, ... ]
+  #    }
+
+  local serving_test_file
+  serving_test_file=$1
+
+  # In dry-run mode, if filters are provided but no tests match, fail fast.
+  if [[ "${DRY_RUN:-0}" == "1" && ( "${MODEL_FILTER}${DTYPE_FILTER}" != "" ) ]]; then
+    local count
+    count=$(merge_serving_tests_stream "$serving_test_file" | wc -l | tr -d ' ')
+    if [[ "$count" -eq 0 ]]; then
+      echo "No matching serving tests found in $serving_test_file for model='$MODEL_FILTER' dtype='$DTYPE_FILTER'." >&2
+      return 0
+    fi
+  fi
+
+  # Iterate over serving tests (merged + optional filtered stream)
+  merge_serving_tests_stream "$serving_test_file" | while read -r params; do
     # get the test name, and append the GPU type back to it.
     test_name=$(echo "$params" | jq -r '.test_name')
     if [[ ! "$test_name" =~ ^serving_ ]]; then
@@ -373,7 +397,7 @@ run_serving_tests() {
     echo "Server command: $server_command"
     # support remote vllm server
     client_remote_args=""
-    if [[ -z "${REMOTE_HOST}" ]]; then
+    if [[ -z "${REMOTE_HOST}" && "${DRY_RUN:-0}" != "1" ]]; then
       bash -c "$server_command" &
       server_pid=$!
       # wait until the server is alive
@@ -384,6 +408,9 @@ run_serving_tests() {
         echo ""
         echo "vLLM failed to start within the timeout period."
       fi
+    elif [[ "${DRY_RUN:-0}" == "1" ]]; then
+        # dry-run: don't start server
+        echo "Dry Run."
     else
       server_command="Using Remote Server $REMOTE_HOST $REMOTE_PORT"
       if [[ ${REMOTE_PORT} ]]; then
@@ -402,14 +429,12 @@ run_serving_tests() {
     for qps in $qps_list; do
       # remove the surrounding single quote from qps
       if [[ "$qps" == *"inf"* ]]; then
-        echo "qps was $qps"
         qps="inf"
-        echo "now qps is $qps"
       fi
 
       # iterate over different max_concurrency
       for max_concurrency in $max_concurrency_list; do
-        new_test_name=$test_name"_qps_"$qps"_concurrency_"$max_concurrency
+        new_test_name="${test_name}_qps_${qps}_concurrency_${max_concurrency}"
         echo " new test name $new_test_name"
         # pass the tensor parallel size, the compilation mode, and the optimization
         # level to the client so that they can be used on the benchmark dashboard
@@ -425,7 +450,9 @@ run_serving_tests() {
         echo "Running test case $test_name with qps $qps"
         echo "Client command: $client_command"
 
-        bash -c "$client_command"
+        if [[ "${DRY_RUN:-0}" != "1" ]]; then
+          bash -c "$client_command"
+        fi
 
         # record the benchmarking commands
         jq_output=$(jq -n \
@@ -443,12 +470,15 @@ run_serving_tests() {
     done
 
     # clean up
-    kill -9 $server_pid
-    kill_gpu_processes
+    if [[ "${DRY_RUN:-0}" != "1" ]]; then
+      kill -9 "$server_pid"
+      kill_gpu_processes
+    fi
   done
 }
 
 main() {
+
   local ARCH
   ARCH=''
   if [[ "$ON_CPU" == "1" ]]; then
@@ -458,7 +488,13 @@ main() {
      check_gpus
      ARCH="$arch_suffix"
   fi
-  check_hf_token
+
+  # DRY_RUN does not execute vLLM; do not require HF_TOKEN.
+  if [[ "${DRY_RUN:-0}" != "1" ]]; then
+    check_hf_token
+  else
+    echo "DRY_RUN=1 -> skip HF_TOKEN validation"
+  fi
 
   # dependencies
   (which wget && which curl) || (apt-get update && apt-get install -y wget curl)
@@ -479,11 +515,16 @@ main() {
 
   # dump vllm info via vllm collect-env
   env_output=$(vllm collect-env)
-
   echo "$env_output" >"$RESULTS_FOLDER/vllm_env.txt"
 
   # benchmarking
-  run_serving_tests $QUICK_BENCHMARK_ROOT/tests/"${SERVING_JSON:-serving-tests$ARCH.json}"
+  run_serving_tests $QUICK_BENCHMARK_ROOT/tests/"${SERVING_JSON:-serving-tests$ARCH.json}" || exit $?
+
+  if [[ "${DRY_RUN:-0}" == "1" ]]; then
+    echo "DRY_RUN=1 -> skip latency/startup/throughput suites"
+    exit 0
+  fi
+
   run_latency_tests $QUICK_BENCHMARK_ROOT/tests/"${LATENCY_JSON:-latency-tests$ARCH.json}"
   run_startup_tests $QUICK_BENCHMARK_ROOT/tests/"${STARTUP_JSON:-startup-tests$ARCH.json}"
   run_throughput_tests $QUICK_BENCHMARK_ROOT/tests/"${THROUGHPUT_JSON:-throughput-tests$ARCH.json}"

.buildkite/performance-benchmarks/tests/latency-tests-hpu.json

@@ -51,5 +51,56 @@
             "max-model-len": 256,
             "async-scheduling": ""
         }
+    },
+    {
+        "test_name": "latency_deepseek_r1",
+        "environment_variables": {
+            "PT_HPU_LAZY_MODE": 1,
+            "PT_HPU_ENABLE_LAZY_COLLECTIVES": 1,
+            "VLLM_CONTIGUOUS_PA": 1,
+            "VLLM_DEFRAG": 1
+        },
+        "parameters": {
+            "model": "deepseek-ai/DeepSeek-R1",
+            "tensor_parallel_size": 8,
+            "load_format": "dummy",
+            "max-model-len": 2048,
+            "dtype": "bfloat16"
+        }
+    },
+    {
+        "test_name": "latency_llama4_maverick_17b128e_instruct_fp8",
+        "environment_variables": {
+            "PT_HPU_LAZY_MODE": 1,
+            "PT_HPU_ENABLE_LAZY_COLLECTIVES": 1,
+            "VLLM_CONTIGUOUS_PA": 1,
+            "VLLM_DEFRAG": 1
+        },
+        "parameters": {
+            "model": "meta-llama/Llama-4-Maverick-17B-128E-Instruct-FP8",
+            "tensor_parallel_size": 8,
+            "max-model-len": 512,
+            "max-num-seqs": 128,
+            "async-scheduling": "",
+            "gpu-memory-utilization": 0.95,
+            "enable_expert_parallel": ""
+        }
+    },
+    {
+        "test_name": "latency_qwen3_8b",
+        "environment_variables": {
+            "PT_HPU_LAZY_MODE": 1,
+            "PT_HPU_ENABLE_LAZY_COLLECTIVES": 1,
+            "VLLM_CONTIGUOUS_PA": 1,
+            "VLLM_DEFRAG": 1
+        },
+        "parameters": {
+            "model": "Qwen/Qwen3-8B",
+            "tensor_parallel_size": 1,
+            "max-model-len": 2048,
+            "max-num-seqs": 128,
+            "dtype": "bfloat16",
+            "async-scheduling": ""
+        }
     }
 ]

.buildkite/performance-benchmarks/tests/serving-tests-cpu-embed.json

@@ -0,0 +1,41 @@
+{
+  "defaults": {
+    "qps_list": [
+      "inf"
+    ],
+    "max_concurrency_list": [
+      32,
+      64,
+      128
+    ],
+    "server_environment_variables": {
+      "VLLM_RPC_TIMEOUT": 100000,
+      "VLLM_ALLOW_LONG_MAX_MODEL_LEN": 1,
+      "VLLM_ENGINE_ITERATION_TIMEOUT_S": 120,
+      "VLLM_CPU_SGL_KERNEL": 1,
+      "VLLM_CPU_KVCACHE_SPACE": 40
+    },
+    "server_parameters": {
+      "dtype": "bfloat16",
+      "model": "jinaai/jina-embeddings-v3",
+      "trust_remote_code": ""
+    },
+    "client_parameters": {
+      "model": "jinaai/jina-embeddings-v3",
+      "backend": "openai-embeddings",
+      "endpoint": "/v1/embeddings",
+      "dataset_name": "sharegpt",
+      "dataset_path": "ShareGPT_V3_unfiltered_cleaned_split.json",
+      "num_prompts": 200
+    }
+  },
+  "tests": [
+    {
+      "test_name": "serving_jina_embed_v3_tp1_sharegpt",
+      "server_parameters": {
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {}
+    }
+  ]
+}

.buildkite/performance-benchmarks/tests/serving-tests-cpu-text.json

@@ -0,0 +1,283 @@
+{
+  "defaults": {
+    "qps_list": [
+      "inf"
+    ],
+    "max_concurrency_list": [12, 16, 24, 32, 64, 128, 200],
+    "server_environment_variables": {
+      "VLLM_RPC_TIMEOUT": 100000,
+      "VLLM_ALLOW_LONG_MAX_MODEL_LEN": 1,
+      "VLLM_ENGINE_ITERATION_TIMEOUT_S": 120,
+      "VLLM_CPU_SGL_KERNEL": 1,
+      "VLLM_CPU_KVCACHE_SPACE": 40
+    },
+    "server_parameters": {
+      "model": "meta-llama/Llama-3.1-8B-Instruct",
+      "tensor_parallel_size": 1,
+      "dtype": "bfloat16",
+      "distributed_executor_backend": "mp",
+      "block_size": 128,
+      "trust_remote_code": "",
+      "disable_log_stats": "",
+      "max_num_batched_tokens": 2048,
+      "max_num_seqs": 256
+    },
+    "client_parameters": {
+      "model": "meta-llama/Llama-3.1-8B-Instruct",
+      "backend": "vllm",
+      "ignore-eos": "",
+      "num_prompts": 200
+    }
+  },
+  "tests": [
+    {
+      "test_name": "serving_llama8B_tp1_sharegpt",
+      "server_parameters": {
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "dataset_name": "sharegpt",
+        "dataset_path": "./ShareGPT_V3_unfiltered_cleaned_split.json"
+      }
+    },
+    {
+      "test_name": "serving_llama8B_tp2_sharegpt",
+      "server_parameters": {
+        "tensor_parallel_size": 2
+      },
+      "client_parameters": {
+        "dataset_name": "sharegpt",
+        "dataset_path": "./ShareGPT_V3_unfiltered_cleaned_split.json"
+      }
+    },
+    {
+      "test_name": "serving_llama8B_tp1_random_128_128",
+      "server_parameters": {
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_llama8B_tp2_random_128_128",
+      "server_parameters": {
+        "tensor_parallel_size": 2
+      },
+      "client_parameters": {
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_llama8B_tp4_random_128_128",
+      "server_parameters": {
+        "tensor_parallel_size": 4
+      },
+      "client_parameters": {
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_llama8B_tp1_random_128_2048",
+      "server_parameters": {
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 2048
+      }
+    },
+    {
+      "test_name": "serving_llama8B_tp2_random_128_2048",
+      "server_parameters": {
+        "tensor_parallel_size": 2
+      },
+      "client_parameters": {
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 2048
+      }
+    },
+    {
+      "test_name": "serving_llama8B_tp4_random_128_2048",
+      "server_parameters": {
+        "tensor_parallel_size": 4
+      },
+      "client_parameters": {
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 2048
+      }
+    },
+    {
+      "test_name": "serving_llama8B_tp1_random_2048_128",
+      "server_parameters": {
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "dataset_name": "random",
+        "random-input-len": 2048,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_llama8B_tp2_random_2048_128",
+      "server_parameters": {
+        "tensor_parallel_size": 2
+      },
+      "client_parameters": {
+        "dataset_name": "random",
+        "random-input-len": 2048,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_llama8B_tp4_random_2048_128",
+      "server_parameters": {
+        "tensor_parallel_size": 4
+      },
+      "client_parameters": {
+        "dataset_name": "random",
+        "random-input-len": 2048,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_llama8B_int4_tp1_random_128_128",
+      "server_parameters": {
+        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_llama8B_int4_tp2_random_128_128",
+      "server_parameters": {
+        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
+        "tensor_parallel_size": 2
+      },
+      "client_parameters": {
+        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_llama8B_int4_tp4_random_128_128",
+      "server_parameters": {
+        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
+        "tensor_parallel_size": 4
+      },
+      "client_parameters": {
+        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_llama3B_tp1_random_128_128",
+      "server_parameters": {
+        "model": "meta-llama/Llama-3.2-3B-Instruct",
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "model": "meta-llama/Llama-3.2-3B-Instruct",
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_granite2B_tp1_random_128_128",
+      "server_parameters": {
+        "model": "ibm-granite/granite-3.2-2b-instruct",
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "model": "ibm-granite/granite-3.2-2b-instruct",
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_qwen1.7B_tp1_random_128_128",
+      "server_parameters": {
+        "model": "Qwen/Qwen3-1.7B",
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "model": "Qwen/Qwen3-1.7B",
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_qwen4B_tp1_random_128_128",
+      "server_parameters": {
+        "model": "Qwen/Qwen3-4B",
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "model": "Qwen/Qwen3-4B",
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_qwen8B_tp1_random_128_128",
+      "server_parameters": {
+        "model": "Qwen/Qwen3-8B",
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "model": "Qwen/Qwen3-8B",
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_glm9B_tp1_random_128_128",
+      "server_parameters": {
+        "model": "zai-org/glm-4-9b-hf",
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "model": "zai-org/glm-4-9b-hf",
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    },
+    {
+      "test_name": "serving_gemma7B_tp1_random_128_128",
+      "server_parameters": {
+        "model": "google/gemma-7b",
+        "tensor_parallel_size": 1
+      },
+      "client_parameters": {
+        "model": "google/gemma-7b",
+        "dataset_name": "random",
+        "random-input-len": 128,
+        "random-output-len": 128
+      }
+    }
+  ]
+}

.buildkite/performance-benchmarks/tests/serving-tests-cpu.json

@@ -148,136 +148,6 @@
         "random-input-len": 2048,
         "random-output-len": 128
       }
-    },
-    {
-      "test_name": "serving_llama8B_int4_tp1_random_128_128",
-      "server_parameters": {
-        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
-        "tensor_parallel_size": 1
-      },
-      "client_parameters": {
-        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
-        "dataset_name": "random",
-        "random-input-len": 128,
-        "random-output-len": 128
-      }
-    },
-    {
-      "test_name": "serving_llama8B_int4_tp2_random_128_128",
-      "server_parameters": {
-        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
-        "tensor_parallel_size": 2
-      },
-      "client_parameters": {
-        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
-        "dataset_name": "random",
-        "random-input-len": 128,
-        "random-output-len": 128
-      }
-    },
-    {
-      "test_name": "serving_llama8B_int4_tp4_random_128_128",
-      "server_parameters": {
-        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
-        "tensor_parallel_size": 4
-      },
-      "client_parameters": {
-        "model": "hugging-quants/Meta-Llama-3.1-8B-Instruct-AWQ-INT4",
-        "dataset_name": "random",
-        "random-input-len": 128,
-        "random-output-len": 128
-      }
-    },
-    {
-      "test_name": "serving_llama3B_tp1_random_128_128",
-      "server_parameters": {
-        "model": "meta-llama/Llama-3.2-3B-Instruct",
-        "tensor_parallel_size": 1
-      },
-      "client_parameters": {
-        "model": "meta-llama/Llama-3.2-3B-Instruct",
-        "dataset_name": "random",
-        "random-input-len": 128,
-        "random-output-len": 128
-      }
-    },
-    {
-      "test_name": "serving_granite2B_tp1_random_128_128",
-      "server_parameters": {
-        "model": "ibm-granite/granite-3.2-2b-instruct",
-        "tensor_parallel_size": 1
-      },
-      "client_parameters": {
-        "model": "ibm-granite/granite-3.2-2b-instruct",
-        "dataset_name": "random",
-        "random-input-len": 128,
-        "random-output-len": 128
-      }
-    },
-    {
-      "test_name": "serving_qwen1.7B_tp1_random_128_128",
-      "server_parameters": {
-        "model": "Qwen/Qwen3-1.7B",
-        "tensor_parallel_size": 1
-      },
-      "client_parameters": {
-        "model": "Qwen/Qwen3-1.7B",
-        "dataset_name": "random",
-        "random-input-len": 128,
-        "random-output-len": 128
-      }
-    },
-    {
-      "test_name": "serving_qwen4B_tp1_random_128_128",
-      "server_parameters": {
-        "model": "Qwen/Qwen3-4B",
-        "tensor_parallel_size": 1
-      },
-      "client_parameters": {
-        "model": "Qwen/Qwen3-4B",
-        "dataset_name": "random",
-        "random-input-len": 128,
-        "random-output-len": 128
-      }
-    },
-    {
-      "test_name": "serving_qwen8B_tp1_random_128_128",
-      "server_parameters": {
-        "model": "Qwen/Qwen3-8B",
-        "tensor_parallel_size": 1
-      },
-      "client_parameters": {
-        "model": "Qwen/Qwen3-8B",
-        "dataset_name": "random",
-        "random-input-len": 128,
-        "random-output-len": 128
-      }
-    },
-    {
-      "test_name": "serving_glm9B_tp1_random_128_128",
-      "server_parameters": {
-        "model": "zai-org/glm-4-9b-hf",
-        "tensor_parallel_size": 1
-      },
-      "client_parameters": {
-        "model": "zai-org/glm-4-9b-hf",
-        "dataset_name": "random",
-        "random-input-len": 128,
-        "random-output-len": 128
-      }
-    },
-    {
-      "test_name": "serving_gemma7B_tp1_random_128_128",
-      "server_parameters": {
-        "model": "google/gemma-7b",
-        "tensor_parallel_size": 1
-      },
-      "client_parameters": {
-        "model": "google/gemma-7b",
-        "dataset_name": "random",
-        "random-input-len": 128,
-        "random-output-len": 128
-      }
     }
   ]
 }

.buildkite/performance-benchmarks/tests/serving-tests-hpu.json

@@ -78,5 +78,84 @@
             "dataset_path": "./ShareGPT_V3_unfiltered_cleaned_split.json",
             "num_prompts": 200
         }
+    },
+    {
+        "test_name": "serving_deepseek_r1",
+        "qps_list": [1, 4, 16, "inf"],
+        "server_environment_variables": {
+            "PT_HPU_LAZY_MODE": 1,
+            "PT_HPU_ENABLE_LAZY_COLLECTIVES": 1,
+            "VLLM_CONTIGUOUS_PA": 1,
+            "VLLM_DEFRAG": 1
+        },
+        "server_parameters": {
+            "model": "deepseek-ai/DeepSeek-R1",
+            "tensor_parallel_size": 8,
+            "swap_space": 16,
+            "disable_log_stats": "",
+            "load_format": "dummy",
+            "max-model-len": 2048,
+            "max-num-seqs": 200,
+            "async-scheduling": "",
+            "dtype": "bfloat16"
+        },
+        "client_parameters": {
+            "model": "deepseek-ai/DeepSeek-R1",
+            "backend": "vllm",
+            "dataset_name": "sharegpt",
+            "dataset_path": "./ShareGPT_V3_unfiltered_cleaned_split.json",
+            "num_prompts": 200
+        }
+    },
+    {
+        "test_name": "serving_llama4_maverick_17b128e_instruct_fp8",
+        "qps_list": [1, 4, 16, "inf"],
+        "server_environment_variables": {
+            "PT_HPU_LAZY_MODE": 1,
+            "PT_HPU_ENABLE_LAZY_COLLECTIVES": 1,
+            "VLLM_CONTIGUOUS_PA": 1,
+            "VLLM_DEFRAG": 1
+        },
+        "server_parameters": {
+            "model": "meta-llama/Llama-4-Maverick-17B-128E-Instruct-FP8",
+            "tensor_parallel_size": 8,
+            "disable_log_stats": "",
+            "max-model-len": 2048,
+            "max-num-seqs": 128,
+            "async-scheduling": "",
+            "enable_expert_parallel": "",
+            "max-num-batched-tokens": 4096
+        },
+        "client_parameters": {
+            "model": "meta-llama/Llama-4-Maverick-17B-128E-Instruct-FP8",
+            "backend": "vllm",
+            "dataset_name": "sharegpt",
+            "dataset_path": "./ShareGPT_V3_unfiltered_cleaned_split.json",
+            "num_prompts": 200
+        }
+    },
+    {
+        "test_name": "serving_qwen3_8b",
+        "qps_list": [1, 4, 10, "inf"],
+        "server_environment_variables": {
+            "PT_HPU_LAZY_MODE": 1,
+            "PT_HPU_ENABLE_LAZY_COLLECTIVES": 1,
+            "VLLM_CONTIGUOUS_PA": 1,
+            "VLLM_DEFRAG": 1
+        },
+        "server_parameters": {
+            "model": "Qwen/Qwen-3-8B",
+            "tensor_parallel_size": 1,
+            "dtype": "bfloat16",
+            "disable_log_stats": "",
+            "async-scheduling": ""
+        },
+        "client_parameters": {
+            "model": "Qwen/Qwen-3-8B",
+            "backend": "vllm",
+            "dataset_name": "sharegpt",
+            "dataset_path": "./ShareGPT_V3_unfiltered_cleaned_split.json",
+            "num_prompts": 200
+        }
     }
 ]

.buildkite/performance-benchmarks/tests/throughput-tests-hpu.json

@@ -57,5 +57,67 @@
             "max-num-seqs": 512,
             "async-scheduling": ""
         }
+    },
+    {
+        "test_name": "throughput_deepseek_r1",
+        "environment_variables": {
+            "PT_HPU_LAZY_MODE": 1,
+            "PT_HPU_ENABLE_LAZY_COLLECTIVES": 1,
+            "VLLM_CONTIGUOUS_PA": 1,
+            "VLLM_DEFRAG": 1
+        },
+        "parameters": {
+            "model": "deepseek-ai/DeepSeek-R1",
+            "tensor_parallel_size": 8,
+            "load_format": "dummy",
+            "dataset_path": "./ShareGPT_V3_unfiltered_cleaned_split.json",
+            "dataset_name": "sharegpt",
+            "num_prompts": 1000,
+            "backend": "vllm",
+            "max-model-len": 2048,
+            "max-num-seqs": 384,
+            "async-scheduling": ""
+        }
+    },
+    {
+        "test_name": "throughput_llama4_maverick_17b128e_instruct_fp8",
+        "environment_variables": {
+            "PT_HPU_LAZY_MODE": 1,
+            "PT_HPU_ENABLE_LAZY_COLLECTIVES": 1,
+            "VLLM_CONTIGUOUS_PA": 1,
+            "VLLM_DEFRAG": 1
+        },
+        "parameters": {
+            "model": "meta-llama/Llama-4-Maverick-17B-128E-Instruct-FP8",
+            "tensor_parallel_size": 8,
+            "dataset_path": "./ShareGPT_V3_unfiltered_cleaned_split.json",
+            "dataset_name": "sharegpt",
+            "num_prompts": 1000,
+            "backend": "vllm",
+            "max-model-len": 2048,
+            "max-num-seqs": 512,
+            "async-scheduling": "",
+            "enable_expert_parallel": ""
+        }
+    },
+    {
+        "test_name": "throughput_qwen3_8b",
+        "environment_variables": {
+            "PT_HPU_LAZY_MODE": 1,
+            "PT_HPU_ENABLE_LAZY_COLLECTIVES": 1,
+            "VLLM_CONTIGUOUS_PA": 1,
+            "VLLM_DEFRAG": 1
+        },
+        "parameters": {
+            "model": "Qwen/Qwen-3-8B",
+            "tensor_parallel_size": 1,
+            "load_format": "dummy",
+            "dataset_path": "./ShareGPT_V3_unfiltered_cleaned_split.json",
+            "dataset_name": "sharegpt",
+            "num_prompts": 1000,
+            "max-num-seqs": 512,
+            "backend": "vllm",
+            "async-scheduling": ""
+        }
     }
 ]

.buildkite/scripts/annotate-rocm-release.sh

@@ -25,7 +25,7 @@ S3_REGION="${AWS_DEFAULT_REGION:-us-west-2}"
 S3_URL="http://${S3_BUCKET}.s3-website-${S3_REGION}.amazonaws.com"
 
 # Format ROCm version for path (e.g., "7.1" -> "rocm710")
-ROCM_VERSION_PATH="rocm$(echo ${ROCM_VERSION} | tr -d '.')"
+ROCM_VERSION_PATH="rocm$(echo "${ROCM_VERSION}" | tr -d '.')"
 ROCM_PATH="rocm/${BUILDKITE_COMMIT}/${ROCM_VERSION_PATH}"
 buildkite-agent annotate --style 'success' --context 'rocm-release-workflow' << EOF
 ## ROCm Wheel and Docker Image Releases
@@ -68,7 +68,7 @@ aws s3 cp s3://${S3_BUCKET}/rocm/${BUILDKITE_COMMIT}/${ROCM_VERSION_PATH}/triton
 aws s3 cp s3://${S3_BUCKET}/rocm/${BUILDKITE_COMMIT}/${ROCM_VERSION_PATH}/torchvision-*.whl .
 aws s3 cp s3://${S3_BUCKET}/rocm/${BUILDKITE_COMMIT}/${ROCM_VERSION_PATH}/torchaudio-*.whl .
 aws s3 cp s3://${S3_BUCKET}/rocm/${BUILDKITE_COMMIT}/${ROCM_VERSION_PATH}/amdsmi-*.whl .
-aws s3 cp s3://${S3_BUCKET}/rocm/${BUILDKITE_COMMIT}/${ROCM_VERSION_PATH}/aiter-*.whl .
+aws s3 cp s3://${S3_BUCKET}/rocm/${BUILDKITE_COMMIT}/${ROCM_VERSION_PATH}/amd_aiter-*.whl .
 aws s3 cp s3://${S3_BUCKET}/rocm/${BUILDKITE_COMMIT}/${ROCM_VERSION_PATH}/flash-attn-*.whl .
 \`\`\`
 
@@ -80,7 +80,7 @@ aws s3 cp s3://${S3_BUCKET}/rocm/${BUILDKITE_COMMIT}/${ROCM_VERSION_PATH}/flash-
 - **torchvision**: TorchVision for ROCm PyTorch
 - **torchaudio**: Torchaudio for ROCm PyTorch
 - **amdsmi**: AMD SMI Python bindings
-- **aiter**: Aiter for ROCm
+- **amd_aiter**: Aiter for ROCm
 - **flash-attn**: Flash Attention for ROCm
 
 ### :warning: Notes

.buildkite/scripts/cache-rocm-base-wheels.sh

@@ -83,7 +83,7 @@ case "${1:-}" in
             exit 1
         fi
 
-        WHEEL_COUNT=$(ls artifacts/rocm-base-wheels/*.whl 2>/dev/null | wc -l)
+        WHEEL_COUNT=$(find artifacts/rocm-base-wheels -maxdepth 1 -name '*.whl' 2>/dev/null | wc -l)
         if [[ "$WHEEL_COUNT" -eq 0 ]]; then
             echo "ERROR: No wheels found in artifacts/rocm-base-wheels/" >&2
             exit 1
@@ -110,9 +110,9 @@ case "${1:-}" in
 
         echo ""
         echo "Downloaded wheels:"
-        ls -lh artifacts/rocm-base-wheels/
+        find artifacts/rocm-base-wheels -maxdepth 1 -name '*.whl' -exec ls -lh {} \;
 
-        WHEEL_COUNT=$(ls artifacts/rocm-base-wheels/*.whl 2>/dev/null | wc -l)
+        WHEEL_COUNT=$(find artifacts/rocm-base-wheels -maxdepth 1 -name '*.whl' 2>/dev/null | wc -l)
         echo ""
         echo "Total: $WHEEL_COUNT wheels"
         echo "========================================"

.buildkite/scripts/check-ray-compatibility.sh

@@ -0,0 +1,205 @@
+#!/bin/bash
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+#
+# Check if Ray LLM can generate lock files that are compatible with this
+# version of vllm. Downloads Ray's requirement files and runs a full
+# dependency resolution with the installed vllm's constraints to see if
+# a valid lock file can be produced.
+#
+# See: https://github.com/vllm-project/vllm/issues/33599
+
+set -eo pipefail
+
+RAY_BASE_URL="https://raw.githubusercontent.com/ray-project/ray/master/python"
+
+WORK_DIR=$(mktemp -d)
+trap 'rm -rf "$WORK_DIR"' EXIT
+
+# Fetch all Ray requirement files used in the LLM depset pipeline
+echo ">>> Fetching Ray requirement files"
+RAY_FILES=(
+    "requirements.txt"
+    "requirements/cloud-requirements.txt"
+    "requirements/base-test-requirements.txt"
+    "requirements/llm/llm-requirements.txt"
+    "requirements/llm/llm-test-requirements.txt"
+)
+for FILE in "${RAY_FILES[@]}"; do
+    LOCAL_PATH="${WORK_DIR}/$(basename "$FILE")"
+    echo "    ${FILE}"
+    curl -fsSL -o "$LOCAL_PATH" "${RAY_BASE_URL}/${FILE}"
+done
+
+# Extract installed vllm deps
+echo ">>> Extracting installed vllm dependency constraints"
+python3 - "${WORK_DIR}/vllm-constraints.txt" <<'PYEOF'
+"""Write out the installed vllm's dependencies as pip constraint lines.
+
+Ray uses vllm[audio], so audio-extra deps are included with their extra
+markers stripped. The resolver cannot evaluate extra markers for a
+package that is not itself being resolved from an index, so we activate
+them manually here.
+"""
+import importlib.metadata
+import re
+import sys
+
+out_path = sys.argv[1]
+raw_reqs = importlib.metadata.requires("vllm") or []
+
+# Ray uses vllm[audio] – activate that extra.
+ACTIVE_EXTRAS = {"audio"}
+EXTRA_RE = re.compile(r"""extra\s*==\s*['"]([^'"]+)['"]""")
+
+lines = []
+for r in raw_reqs:
+    if ";" not in r:
+        # Unconditional dep — always include.
+        lines.append(r.strip())
+        continue
+
+    req_part, _, marker_part = r.partition(";")
+    marker_part = marker_part.strip()
+
+    extra_matches = EXTRA_RE.findall(marker_part)
+    if not extra_matches:
+        # Non-extra marker (python_version, etc.) — keep as-is.
+        lines.append(r.strip())
+        continue
+
+    if not ACTIVE_EXTRAS.intersection(extra_matches):
+        continue  # Skip inactive extras (tensorizer, bench, …).
+
+    # Strip the extra== conditions but keep any remaining markers
+    # (e.g. python_version).
+    cleaned = EXTRA_RE.sub("", marker_part)
+    cleaned = re.sub(r"\band\b\s*\band\b", "and", cleaned)
+    cleaned = re.sub(r"^\s*and\s+|\s+and\s*$", "", cleaned).strip()
+
+    if cleaned:
+        lines.append(f"{req_part.strip()} ; {cleaned}")
+    else:
+        lines.append(req_part.strip())
+
+with open(out_path, "w") as f:
+    for line in lines:
+        f.write(line + "\n")
+
+print(f"Wrote {len(lines)} constraints to {out_path}")
+PYEOF
+
+echo ">>> Installed vllm deps (first 20 lines):"
+head -20 "${WORK_DIR}/vllm-constraints.txt"
+
+# Remove Ray's vllm pin — the installed vllm's transitive deps
+# (written above) replace it in the resolution. vllm itself cannot
+# be resolved from PyPI for in-development versions, so we test
+# whether Ray's requirements can coexist with vllm's dependency
+# constraints instead.
+sed -i '/^vllm/d' "${WORK_DIR}/llm-requirements.txt"
+
+# Install uv if needed
+if ! command -v uv &>/dev/null; then
+    echo ">>> Installing uv"
+    pip install uv -q
+fi
+
+# Resolve: given vllm's constraints, can Ray compile a lock file?
+#
+# vllm's dependency constraints are the fixed side — Ray is flexible and
+# can regenerate its lock files. We pass vllm's constraints via -c so
+# the resolver treats them as non-negotiable bounds, then check whether
+# Ray's own requirements can still be satisfied within those bounds.
+echo ""
+echo "============================================================"
+echo ">>> Resolving: Can Ray generate compatible lock files?"
+echo "============================================================"
+
+set +e
+uv pip compile \
+    "${WORK_DIR}/requirements.txt" \
+    "${WORK_DIR}/cloud-requirements.txt" \
+    "${WORK_DIR}/base-test-requirements.txt" \
+    "${WORK_DIR}/llm-requirements.txt" \
+    "${WORK_DIR}/llm-test-requirements.txt" \
+    -c "${WORK_DIR}/vllm-constraints.txt" \
+    --python-version 3.12 \
+    --python-platform x86_64-manylinux_2_31 \
+    --extra-index-url https://download.pytorch.org/whl/cu129 \
+    --index-strategy unsafe-best-match \
+    --unsafe-package setuptools \
+    --unsafe-package ray \
+    --no-header \
+    -o "${WORK_DIR}/resolved.txt" \
+    2>&1
+EXIT_CODE=$?
+set -e
+
+echo ""
+echo "=========================================="
+if [ $EXIT_CODE -eq 0 ]; then
+    echo "SUCCESS: Ray can generate lock files compatible with this vllm."
+    echo ""
+    echo "Key resolved versions:"
+    grep -E '^(protobuf|torch|numpy|transformers)==' \
+        "${WORK_DIR}/resolved.txt" | sort || true
+    echo "=========================================="
+    exit 0
+fi
+
+echo "FAILURE: Ray cannot generate lock files compatible with this vllm."
+echo "This means a fundamental dependency conflict exists that Ray"
+echo "cannot resolve by regenerating its lock files."
+echo "See: https://github.com/vllm-project/vllm/issues/33599"
+echo "=========================================="
+
+# Buildkite annotation
+if [ -f /usr/bin/buildkite-agent ]; then
+    buildkite-agent annotate --style 'warning' --context 'ray-compat' << EOF
+### :warning: Ray Dependency Compatibility Warning
+This PR introduces dependencies that **cannot** be resolved with Ray's requirements.
+Ray would not be able to regenerate its lock files to accommodate this vllm version.
+
+Please check the **Ray Dependency Compatibility Check** step logs for details.
+See [issue #33599](https://github.com/vllm-project/vllm/issues/33599) for context.
+EOF
+fi
+
+# Notify Slack if webhook is configured.
+if [ -n "$RAY_COMPAT_SLACK_WEBHOOK_URL" ]; then
+    echo ">>> Sending Slack notification"
+    # Single quotes are intentional: the f-string expressions are Python, not shell.
+    # shellcheck disable=SC2016
+    PAYLOAD=$(python3 -c '
+import json, os, sys
+pr = os.getenv("BUILDKITE_PULL_REQUEST", "N/A")
+branch = os.getenv("BUILDKITE_BRANCH", "unknown")
+url = os.getenv("BUILDKITE_BUILD_URL", "#")
+data = {
+    "text": ":warning: Ray Dependency Compatibility Check Failed",
+    "blocks": [{
+        "type": "section",
+        "text": {
+            "type": "mrkdwn",
+            "text": (
+                "*:warning: Ray Dependency Compatibility Check Failed*\n"
+                f"PR #{pr} on branch `{branch}` introduces dependencies "
+                f"that cannot be resolved with Ray'\''s requirements.\n"
+                f"<{url}|View Build>"
+            ),
+        },
+    }],
+}
+print(json.dumps(data))
+')
+
+    HTTP_CODE=$(curl -s -o /dev/null -w "%{http_code}" -X POST "$RAY_COMPAT_SLACK_WEBHOOK_URL" \
+        -H 'Content-type: application/json' \
+        -d "$PAYLOAD")
+    echo "    Slack webhook response: $HTTP_CODE"
+else
+    echo ">>> Skipping Slack notification (RAY_COMPAT_SLACK_WEBHOOK_URL not set)"
+fi
+
+exit 1

.buildkite/scripts/cherry-pick-from-milestone.sh

@@ -134,7 +134,7 @@ log_info "Fetching merged PRs from milestone '${MILESTONE}'..."
 
 # Store PR data in a temp file
 PR_DATA=$(mktemp)
-trap "rm -f $PR_DATA" EXIT
+trap 'rm -f "$PR_DATA"' EXIT
 
 if ! gh pr list --state merged --search "milestone:${MILESTONE}" \
     --limit 1000 \

.buildkite/scripts/hardware_ci/run-amd-test.sh

@@ -1,25 +1,57 @@
 #!/bin/bash
 
-# This script runs test inside the corresponding ROCm docker container.
+# This script runs tests inside the corresponding ROCm docker container.
+# It handles both single-node and multi-node test configurations.
+#
+# Multi-node detection: Instead of matching on fragile group names, we detect
+# multi-node jobs structurally by looking for the bracket command syntax
+# "[node0_cmds] && [node1_cmds]" or via the NUM_NODES environment variable.
+#
+###############################################################################
+# QUOTING / COMMAND PASSING
+#
+# Passing commands as positional arguments ($*) is fragile when the command
+# string itself contains double quotes, e.g.:
+#
+#   bash run-amd-test.sh "export FLAGS="value" && pytest -m "not slow""
+#
+# The outer shell resolves the nested quotes *before* this script runs, so
+# the script receives mangled input it cannot fully recover.
+#
+# Preferred: pass commands via the VLLM_TEST_COMMANDS environment variable:
+#
+#   export VLLM_TEST_COMMANDS='export FLAGS="value" && pytest -m "not slow"'
+#   bash run-amd-test.sh
+#
+# Single-quoted assignment preserves all inner double quotes verbatim.
+# The $* path is kept for backward compatibility but callers should migrate.
+###############################################################################
 set -o pipefail
 
 # Export Python path
 export PYTHONPATH=".."
 
-# Print ROCm version
-echo "--- Confirming Clean Initial State"
-while true; do
-        sleep 3
-        if grep -q clean /opt/amdgpu/etc/gpu_state; then
-                echo "GPUs state is \"clean\""
-                break
-        fi
-done
+###############################################################################
+# Helper Functions
+###############################################################################
 
-echo "--- ROCm info"
-rocminfo
+wait_for_clean_gpus() {
+  local timeout=${1:-300}
+  local start=$SECONDS
+  echo "--- Waiting for clean GPU state (timeout: ${timeout}s)"
+  while true; do
+    if grep -q clean /opt/amdgpu/etc/gpu_state; then
+      echo "GPUs state is \"clean\""
+      return
+    fi
+    if (( SECONDS - start >= timeout )); then
+      echo "Error: GPUs did not reach clean state within ${timeout}s" >&2
+      exit 1
+    fi
+    sleep 3
+  done
+}
 
-# cleanup older docker images
 cleanup_docker() {
   # Get Docker's root directory
   docker_root=$(docker info -f '{{.DockerRootDir}}')
@@ -28,15 +60,12 @@ cleanup_docker() {
     exit 1
   fi
   echo "Docker root directory: $docker_root"
-  # Check disk usage of the filesystem where Docker's root directory is located
+
   disk_usage=$(df "$docker_root" | tail -1 | awk '{print $5}' | sed 's/%//')
-  # Define the threshold
   threshold=70
   if [ "$disk_usage" -gt "$threshold" ]; then
     echo "Disk usage is above $threshold%. Cleaning up Docker images and volumes..."
-    # Remove dangling images (those that are not tagged and not used by any container)
     docker image prune -f
-    # Remove unused volumes / force the system prune for old images as well.
     docker volume prune -f && docker system prune --force --filter "until=72h" --all
     echo "Docker images and volumes cleanup completed."
   else
@@ -45,193 +74,431 @@ cleanup_docker() {
 }
 
 cleanup_network() {
-  for node in $(seq 0 $((NUM_NODES-1))); do
-    if docker pr -a -q -f name="node${node}" | grep -q .; then
-      docker stop "node${node}"
+  local max_nodes=${NUM_NODES:-2}
+  for node in $(seq 0 $((max_nodes - 1))); do
+    if docker ps -a -q -f name="node${node}" | grep -q .; then
+      docker stop "node${node}" || true
     fi
   done
-  if docker network ls | grep docker-net; then
-    docker network rm docker-net
+  if docker network ls | grep -q docker-net; then
+    docker network rm docker-net || true
   fi
 }
 
-# Call the cleanup docker function
+is_multi_node() {
+  local cmds="$1"
+  # Primary signal: NUM_NODES environment variable set by the pipeline
+  if [[ "${NUM_NODES:-1}" -gt 1 ]]; then
+    return 0
+  fi
+  # Fallback: detect the bracket syntax structurally
+  # Pattern: [...] && [...] (per-node command arrays)
+  if [[ "$cmds" =~ \[.*\].*\&\&.*\[.*\] ]]; then
+    return 0
+  fi
+  return 1
+}
+
+handle_pytest_exit() {
+  local exit_code=$1
+  if [ "$exit_code" -eq 5 ]; then
+    echo "Pytest exit code 5 (no tests collected) - treating as success."
+    exit 0
+  fi
+  exit "$exit_code"
+}
+
+###############################################################################
+# Pytest marker/keyword re-quoting
+#
+# When commands are passed through Buildkite -> shell -> $* -> bash -c,
+# quotes around multi-word pytest -m/-k expressions get stripped:
+#   pytest -v -s -m 'not cpu_test' v1/core
+# becomes:
+#   pytest -v -s -m not cpu_test v1/core
+#
+# pytest then interprets "cpu_test" as a file path, not part of the marker.
+#
+# This function detects unquoted expressions after -m/-k and re-quotes them
+# by collecting tokens until a recognizable boundary is reached:
+#   - test path (contains '/')
+#   - test file (ends with '.py')
+#   - another pytest flag (--xxx or -x single-char flags)
+#   - command separator (&& || ; |)
+#   - environment variable assignment (FOO=bar)
+#
+# Single-word markers (e.g. -m cpu_test, -m hybrid_model) pass through
+# unquoted since they have no spaces and work fine.
+#
+# Already-quoted expressions (containing literal single quotes) are passed
+# through untouched to avoid double-quoting values injected by
+# apply_rocm_test_overrides.
+#
+# NOTE: This ONLY fixes -m/-k flags. It cannot recover arbitrary inner
+# double-quotes stripped by the calling shell (see header comment).
+# Use VLLM_TEST_COMMANDS to avoid the problem entirely.
+###############################################################################
+re_quote_pytest_markers() {
+  local input="$1"
+  local output=""
+  local collecting=false
+  local marker_buf=""
+
+  # Strip backslash-newline continuations, then flatten remaining newlines
+  local flat="${input//$'\\\n'/ }"
+  flat="${flat//$'\n'/ }"
+
+  # Disable globbing to prevent *.py etc. from expanding during read -ra
+  local restore_glob
+  restore_glob="$(shopt -p -o noglob 2>/dev/null || true)"
+  set -o noglob
+  local -a words
+  read -ra words <<< "$flat"
+  eval "$restore_glob"
+
+  for word in "${words[@]}"; do
+    if $collecting; then
+      # If the token we're about to collect already contains a literal
+      # single quote, the expression was already quoted upstream.
+      # Flush and stop collecting.
+      if [[ "$word" == *"'"* ]]; then
+        if [[ -n "$marker_buf" ]]; then
+          # Should not normally happen (partial buf + quote), flush raw
+          output+="${marker_buf} "
+          marker_buf=""
+        fi
+        output+="${word} "
+        collecting=false
+        continue
+      fi
+
+      local is_boundary=false
+      case "$word" in
+        # Line-continuation artifact
+        "\\")
+          is_boundary=true ;;
+        # Command separators
+        "&&"|"||"|";"|"|")
+          is_boundary=true ;;
+        # Long flags (--ignore, --shard-id, etc.)
+        --*)
+          is_boundary=true ;;
+        # Short flags (-v, -s, -x, etc.) but NOT negative marker tokens
+        # like "not" which don't start with "-". Also skip -k/-m which
+        # would start a new marker (handled below).
+        -[a-zA-Z])
+          is_boundary=true ;;
+        # Test path (contains /)
+        */*)
+          is_boundary=true ;;
+        # Test file (ends with .py, possibly with ::method)
+        *.py|*.py::*)
+          is_boundary=true ;;
+        # Environment variable assignment preceding a command (FOO=bar)
+        *=*)
+          # Only treat as boundary if it looks like VAR=value, not
+          # pytest filter expressions like num_gpus=2 inside markers
+          if [[ "$word" =~ ^[A-Z_][A-Z0-9_]*= ]]; then
+            is_boundary=true
+          fi
+          ;;
+      esac
+
+      if $is_boundary; then
+        # Flush the collected marker expression
+        if [[ "$marker_buf" == *" "* || "$marker_buf" == *"("* ]]; then
+          output+="'${marker_buf}' "
+        else
+          output+="${marker_buf} "
+        fi
+        collecting=false
+        marker_buf=""
+        # Check if this boundary word itself starts a new -m/-k
+        if [[ "$word" == "-m" || "$word" == "-k" ]]; then
+          output+="${word} "
+          collecting=true
+        # Drop stray backslash tokens silently
+        elif [[ "$word" == "\\" ]]; then
+          :
+        else
+          output+="${word} "
+        fi
+      else
+        # Accumulate into marker buffer
+        if [[ -n "$marker_buf" ]]; then
+          marker_buf+=" ${word}"
+        else
+          marker_buf="${word}"
+        fi
+      fi
+    elif [[ "$word" == "-m" || "$word" == "-k" ]]; then
+      output+="${word} "
+      collecting=true
+      marker_buf=""
+    else
+      output+="${word} "
+    fi
+  done
+
+  # Flush any trailing marker expression (marker at end of command)
+  if $collecting && [[ -n "$marker_buf" ]]; then
+    if [[ "$marker_buf" == *" "* || "$marker_buf" == *"("* ]]; then
+      output+="'${marker_buf}'"
+    else
+      output+="${marker_buf}"
+    fi
+  fi
+
+  echo "${output% }"
+}
+
+###############################################################################
+# ROCm-specific pytest command rewrites
+#
+# These apply ignore flags and environment overrides for tests that are not
+# yet supported or behave differently on ROCm hardware. Kept as a single
+# function so new exclusions are easy to add in one place.
+###############################################################################
+
+apply_rocm_test_overrides() {
+  local cmds="$1"
+
+  # --- Model registry filter ---
+  if [[ $cmds == *"pytest -v -s models/test_registry.py"* ]]; then
+    cmds=${cmds//"pytest -v -s models/test_registry.py"/"pytest -v -s models/test_registry.py -k 'not BambaForCausalLM and not GritLM and not Mamba2ForCausalLM and not Zamba2ForCausalLM'"}
+  fi
+
+  # --- LoRA: disable custom paged attention ---
+  if [[ $cmds == *"pytest -v -s lora"* ]]; then
+    cmds=${cmds//"pytest -v -s lora"/"VLLM_ROCM_CUSTOM_PAGED_ATTN=0 pytest -v -s lora"}
+  fi
+
+  # --- Kernel ignores ---
+  if [[ $cmds == *" kernels/core"* ]]; then
+    cmds="${cmds} \
+    --ignore=kernels/core/test_fused_quant_layernorm.py \
+    --ignore=kernels/core/test_permute_cols.py"
+  fi
+
+  if [[ $cmds == *" kernels/attention"* ]]; then
+    cmds="${cmds} \
+    --ignore=kernels/attention/test_attention_selector.py \
+    --ignore=kernels/attention/test_encoder_decoder_attn.py \
+    --ignore=kernels/attention/test_flash_attn.py \
+    --ignore=kernels/attention/test_flashinfer.py \
+    --ignore=kernels/attention/test_prefix_prefill.py \
+    --ignore=kernels/attention/test_cascade_flash_attn.py \
+    --ignore=kernels/attention/test_mha_attn.py \
+    --ignore=kernels/attention/test_lightning_attn.py \
+    --ignore=kernels/attention/test_attention.py"
+  fi
+
+  if [[ $cmds == *" kernels/quantization"* ]]; then
+    cmds="${cmds} \
+    --ignore=kernels/quantization/test_int8_quant.py \
+    --ignore=kernels/quantization/test_machete_mm.py \
+    --ignore=kernels/quantization/test_block_fp8.py \
+    --ignore=kernels/quantization/test_block_int8.py \
+    --ignore=kernels/quantization/test_marlin_gemm.py \
+    --ignore=kernels/quantization/test_cutlass_scaled_mm.py \
+    --ignore=kernels/quantization/test_int8_kernel.py"
+  fi
+
+  if [[ $cmds == *" kernels/mamba"* ]]; then
+    cmds="${cmds} \
+    --ignore=kernels/mamba/test_mamba_mixer2.py \
+    --ignore=kernels/mamba/test_causal_conv1d.py \
+    --ignore=kernels/mamba/test_mamba_ssm_ssd.py"
+  fi
+
+  if [[ $cmds == *" kernels/moe"* ]]; then
+    cmds="${cmds} \
+    --ignore=kernels/moe/test_moe.py \
+    --ignore=kernels/moe/test_cutlass_moe.py \
+    --ignore=kernels/moe/test_triton_moe_ptpc_fp8.py"
+  fi
+
+  # --- Entrypoint ignores ---
+  if [[ $cmds == *" entrypoints/openai "* ]]; then
+    cmds=${cmds//" entrypoints/openai "/" entrypoints/openai \
+    --ignore=entrypoints/openai/test_audio.py \
+    --ignore=entrypoints/openai/test_shutdown.py \
+    --ignore=entrypoints/openai/test_completion.py \
+    --ignore=entrypoints/openai/test_models.py \
+    --ignore=entrypoints/openai/test_lora_adapters.py \
+    --ignore=entrypoints/openai/test_return_tokens_as_ids.py \
+    --ignore=entrypoints/openai/test_root_path.py \
+    --ignore=entrypoints/openai/test_tokenization.py \
+    --ignore=entrypoints/openai/test_prompt_validation.py "}
+  fi
+
+  if [[ $cmds == *" entrypoints/llm "* ]]; then
+    cmds=${cmds//" entrypoints/llm "/" entrypoints/llm \
+    --ignore=entrypoints/llm/test_chat.py \
+    --ignore=entrypoints/llm/test_accuracy.py \
+    --ignore=entrypoints/llm/test_init.py \
+    --ignore=entrypoints/llm/test_prompt_validation.py "}
+  fi
+
+  # Clean up escaped newlines from --ignore appends
+  cmds=$(echo "$cmds" | sed 's/ \\ / /g')
+
+  echo "$cmds"
+}
+
+###############################################################################
+# Main
+###############################################################################
+
+# --- GPU initialization ---
+echo "--- Confirming Clean Initial State"
+wait_for_clean_gpus
+
+echo "--- ROCm info"
+rocminfo
+
+# --- Docker housekeeping ---
 cleanup_docker
 
 echo "--- Resetting GPUs"
-
 echo "reset" > /opt/amdgpu/etc/gpu_state
+wait_for_clean_gpus
 
-while true; do
-        sleep 3
-        if grep -q clean /opt/amdgpu/etc/gpu_state; then
-                echo "GPUs state is \"clean\""
-                break
-        fi
-done
-
+# --- Pull test image ---
 echo "--- Pulling container"
 image_name="rocm/vllm-ci:${BUILDKITE_COMMIT}"
 container_name="rocm_${BUILDKITE_COMMIT}_$(tr -dc A-Za-z0-9 < /dev/urandom | head -c 10; echo)"
 docker pull "${image_name}"
 
 remove_docker_container() {
-   docker rm -f "${container_name}" || docker image rm -f "${image_name}" || true
+  docker rm -f "${container_name}" || docker image rm -f "${image_name}" || true
 }
 trap remove_docker_container EXIT
 
+# --- Prepare commands ---
 echo "--- Running container"
 
 HF_CACHE="$(realpath ~)/huggingface"
 mkdir -p "${HF_CACHE}"
 HF_MOUNT="/root/.cache/huggingface"
 
-commands=$@
+# ---- Command source selection ----
+# Prefer VLLM_TEST_COMMANDS (preserves all inner quoting intact).
+# Fall back to $* for backward compatibility, but warn that inner
+# double-quotes will have been stripped by the calling shell.
+if [[ -n "${VLLM_TEST_COMMANDS:-}" ]]; then
+  commands="${VLLM_TEST_COMMANDS}"
+  echo "Commands sourced from VLLM_TEST_COMMANDS (quoting preserved)"
+else
+  commands="$*"
+  if [[ -z "$commands" ]]; then
+    echo "Error: No test commands provided." >&2
+    echo "Usage:" >&2
+    echo "  Preferred:  VLLM_TEST_COMMANDS='...' bash $0" >&2
+    echo "  Legacy:     bash $0 \"commands here\"" >&2
+    exit 1
+  fi
+  echo "Commands sourced from positional args (legacy mode)"
+  echo "WARNING: Inner double-quotes in the command string may have been"
+  echo "  stripped by the calling shell. If you see syntax errors, switch to:"
+  echo "  export VLLM_TEST_COMMANDS='your commands here'"
+  echo "  bash $0"
+fi
+
 echo "Raw commands: $commands"
 
-commands=${commands//"pytest -v -s basic_correctness/test_basic_correctness.py"/"pytest -v -s basic_correctness/test_basic_correctness.py"}
+# Fix quoting before ROCm overrides (so overrides see correct structure)
+commands=$(re_quote_pytest_markers "$commands")
+echo "After re-quoting: $commands"
 
-if [[ $commands == *"pytest -v -s models/test_registry.py"* ]]; then
-  commands=${commands//"pytest -v -s models/test_registry.py"/"pytest -v -s models/test_registry.py -k 'not BambaForCausalLM and not GritLM and not Mamba2ForCausalLM and not Zamba2ForCausalLM'"}
-fi
-
-commands=${commands//"pytest -v -s compile/test_basic_correctness.py"/"pytest -v -s compile/test_basic_correctness.py"}
-
-if [[ $commands == *"pytest -v -s lora"* ]]; then
-  commands=${commands//"pytest -v -s lora"/"VLLM_ROCM_CUSTOM_PAGED_ATTN=0 pytest -v -s lora"}
-fi
-
-#ignore certain kernels tests
-if [[ $commands == *" kernels/core"* ]]; then
-  commands="${commands} \
-  --ignore=kernels/core/test_fused_quant_layernorm.py \
-  --ignore=kernels/core/test_permute_cols.py"
-fi
-
-if [[ $commands == *" kernels/attention"* ]]; then
-  commands="${commands} \
-  --ignore=kernels/attention/test_attention_selector.py \
-  --ignore=kernels/attention/test_encoder_decoder_attn.py \
-  --ignore=kernels/attention/test_flash_attn.py \
-  --ignore=kernels/attention/test_flashinfer.py \
-  --ignore=kernels/attention/test_prefix_prefill.py \
-  --ignore=kernels/attention/test_cascade_flash_attn.py \
-  --ignore=kernels/attention/test_mha_attn.py \
-  --ignore=kernels/attention/test_lightning_attn.py \
-  --ignore=kernels/attention/test_attention.py"
-fi
-
-if [[ $commands == *" kernels/quantization"* ]]; then
-  commands="${commands} \
-  --ignore=kernels/quantization/test_int8_quant.py \
-  --ignore=kernels/quantization/test_machete_mm.py \
-  --ignore=kernels/quantization/test_block_fp8.py \
-  --ignore=kernels/quantization/test_block_int8.py \
-  --ignore=kernels/quantization/test_marlin_gemm.py \
-  --ignore=kernels/quantization/test_cutlass_scaled_mm.py \
-  --ignore=kernels/quantization/test_int8_kernel.py"
-fi
-
-if [[ $commands == *" kernels/mamba"* ]]; then
-  commands="${commands} \
-  --ignore=kernels/mamba/test_mamba_mixer2.py \
-  --ignore=kernels/mamba/test_causal_conv1d.py \
-  --ignore=kernels/mamba/test_mamba_ssm_ssd.py"
-fi
-
-if [[ $commands == *" kernels/moe"* ]]; then
-  commands="${commands} \
-  --ignore=kernels/moe/test_moe.py \
-  --ignore=kernels/moe/test_cutlass_moe.py \
-  --ignore=kernels/moe/test_triton_moe_ptpc_fp8.py"
-fi
-
-#ignore certain Entrypoints/openai tests
-if [[ $commands == *" entrypoints/openai "* ]]; then
-  commands=${commands//" entrypoints/openai "/" entrypoints/openai \
-  --ignore=entrypoints/openai/test_audio.py \
-  --ignore=entrypoints/openai/test_shutdown.py \
-  --ignore=entrypoints/openai/test_completion.py \
-  --ignore=entrypoints/openai/test_models.py \
-  --ignore=entrypoints/openai/test_lora_adapters.py \
-  --ignore=entrypoints/openai/test_return_tokens_as_ids.py \
-  --ignore=entrypoints/openai/test_root_path.py \
-  --ignore=entrypoints/openai/test_tokenization.py \
-  --ignore=entrypoints/openai/test_prompt_validation.py "}
-fi
-
-#ignore certain Entrypoints/llm tests
-if [[ $commands == *" entrypoints/llm "* ]]; then
-  commands=${commands//" entrypoints/llm "/" entrypoints/llm \
-  --ignore=entrypoints/llm/test_chat.py \
-  --ignore=entrypoints/llm/test_accuracy.py \
-  --ignore=entrypoints/llm/test_init.py \
-  --ignore=entrypoints/llm/test_prompt_validation.py "}
-fi
-
-commands=$(echo "$commands" | sed 's/ \\ / /g')
+commands=$(apply_rocm_test_overrides "$commands")
 echo "Final commands: $commands"
 
-# --ignore=entrypoints/openai/test_encoder_decoder.py \
-# --ignore=entrypoints/openai/test_embedding.py \
-# --ignore=entrypoints/openai/test_oot_registration.py
-# --ignore=entrypoints/openai/test_accuracy.py \
-# --ignore=entrypoints/openai/test_models.py <= Fails on MI250 but passes on MI300 as of 2025-03-13
-
-
 MYPYTHONPATH=".."
 
-# Test that we're launching on the machine that has
-# proper access to GPUs
+# Verify GPU access
 render_gid=$(getent group render | cut -d: -f3)
 if [[ -z "$render_gid" ]]; then
   echo "Error: 'render' group not found. This is required for GPU access." >&2
   exit 1
 fi
 
-if [[ $commands == *"VLLM_TEST_GROUP_NAME=mi325_4-2-node-tests-4-gpus-in-total"* ]]; then
+# --- RDMA device passthrough (conditional) ---
+# If the host has RDMA devices, pass them through so tests like
+# test_moriio_connector can access ibverbs. On hosts without RDMA
+# hardware the tests will gracefully skip via _rdma_available().
+RDMA_FLAGS=""
+if [ -d /dev/infiniband ]; then
+  echo "RDMA devices detected on host, enabling passthrough"
+  RDMA_FLAGS="--device /dev/infiniband --cap-add=IPC_LOCK"
+else
+  echo "No RDMA devices found on host, RDMA tests will be skipped"
+fi
 
+# --- Route: multi-node vs single-node ---
+if is_multi_node "$commands"; then
+  echo "--- Multi-node job detected"
   export DCKR_VER=$(docker --version | sed 's/Docker version \(.*\), build .*/\1/')
 
-  if [[ "$commands" =~ ^(.*)"["(.*)"] && ["(.*)"]"$ ]]; then
-      prefix=$( echo "${BASH_REMATCH[1]}" | sed 's/;//g')
-      echo "PREFIX: ${prefix}"
-      export composite_command="(command rocm-smi || true)"
-      myIFS=$IFS
-      IFS=','
-      read -ra node0 <<< ${BASH_REMATCH[2]}
-      read -ra node1 <<< ${BASH_REMATCH[3]}
-      IFS=$myIFS
-      for i in "${!node0[@]}";do 
-        command_node_0=$(echo ${node0[i]} | sed 's/\"//g')
-        command_node_1=$(echo ${node1[i]} | sed 's/\"//g')
-        
-        export commands="./.buildkite/scripts/run-multi-node-test.sh /vllm-workspace/tests 2 2 ${image_name} '${command_node_0}' '${command_node_1}'"
-        echo "COMMANDS: ${commands}"
-        composite_command=$(echo "${composite_command} && ${commands}")
-      done
-      /bin/bash -c "${composite_command}"
-      cleanup_network
+  # Parse the bracket syntax:  prefix ; [node0_cmds] && [node1_cmds]
+  #   BASH_REMATCH[1] = prefix (everything before first bracket)
+  #   BASH_REMATCH[2] = comma-separated node0 commands
+  #   BASH_REMATCH[3] = comma-separated node1 commands
+  if [[ "$commands" =~ ^(.*)\[(.*)"] && ["(.*)\]$ ]]; then
+    prefix=$(echo "${BASH_REMATCH[1]}" | sed 's/;//g')
+    echo "PREFIX: ${prefix}"
+
+    export composite_command="(command rocm-smi || true)"
+    saved_IFS=$IFS
+    IFS=','
+    read -ra node0 <<< "${BASH_REMATCH[2]}"
+    read -ra node1 <<< "${BASH_REMATCH[3]}"
+    IFS=$saved_IFS
+
+    if [[ ${#node0[@]} -ne ${#node1[@]} ]]; then
+      echo "Warning: node0 has ${#node0[@]} commands, node1 has ${#node1[@]}. They will be paired by index."
+    fi
+
+    for i in "${!node0[@]}"; do
+      command_node_0=$(echo "${node0[i]}" | sed 's/\"//g')
+      command_node_1=$(echo "${node1[i]}" | sed 's/\"//g')
+
+      step_cmd="./.buildkite/scripts/run-multi-node-test.sh /vllm-workspace/tests 2 2 ${image_name} '${command_node_0}' '${command_node_1}'"
+      echo "COMMANDS: ${step_cmd}"
+      composite_command="${composite_command} && ${step_cmd}"
+    done
+
+    /bin/bash -c "${composite_command}"
+    exit_code=$?
+    cleanup_network
+    handle_pytest_exit "$exit_code"
   else
-      echo "Failed to parse node commands! Exiting."
-      cleanup_network
-      exit 111
+    echo "Multi-node job detected but failed to parse bracket command syntax."
+    echo "Expected format: prefix ; [node0_cmd1, node0_cmd2] && [node1_cmd1, node1_cmd2]"
+    echo "Got: $commands"
+    cleanup_network
+    exit 111
   fi
 else
+  echo "--- Single-node job"
   echo "Render devices: $BUILDKITE_AGENT_META_DATA_RENDER_DEVICES"
   docker run \
-          --device /dev/kfd $BUILDKITE_AGENT_META_DATA_RENDER_DEVICES \
-          --network=host \
-          --shm-size=16gb \
-          --group-add "$render_gid" \
-          --rm \
-          -e HF_TOKEN \
-          -e AWS_ACCESS_KEY_ID \
-          -e AWS_SECRET_ACCESS_KEY \
-          -v "${HF_CACHE}:${HF_MOUNT}" \
-          -e "HF_HOME=${HF_MOUNT}" \
-          -e "PYTHONPATH=${MYPYTHONPATH}" \
-          --name "${container_name}" \
-          "${image_name}" \
-          /bin/bash -c "${commands}"
+    --device /dev/kfd $BUILDKITE_AGENT_META_DATA_RENDER_DEVICES \
+    $RDMA_FLAGS \
+    --network=host \
+    --shm-size=16gb \
+    --group-add "$render_gid" \
+    --rm \
+    -e HF_TOKEN \
+    -e AWS_ACCESS_KEY_ID \
+    -e AWS_SECRET_ACCESS_KEY \
+    -v "${HF_CACHE}:${HF_MOUNT}" \
+    -e "HF_HOME=${HF_MOUNT}" \
+    -e "PYTHONPATH=${MYPYTHONPATH}" \
+    --name "${container_name}" \
+    "${image_name}" \
+    /bin/bash -c "${commands}"
+
+  exit_code=$?
+  handle_pytest_exit "$exit_code"
 fi

.buildkite/scripts/hardware_ci/run-cpu-distributed-smoke-test.sh

@@ -1,26 +1,43 @@
 #!/bin/bash
 set -euox pipefail
+export VLLM_CPU_CI_ENV=0
 
 echo "--- PP+TP"
 vllm serve meta-llama/Llama-3.2-3B-Instruct -tp=2 -pp=2 &
 server_pid=$!
-timeout 600 bash -c "until curl localhost:8000/v1/models; do sleep 1; done" || exit 1
+timeout 600 bash -c "until curl localhost:8000/v1/models > /dev/null 2>&1; do sleep 1; done" || exit 1
 vllm bench serve \
     --backend vllm \
     --dataset-name random \
     --model meta-llama/Llama-3.2-3B-Instruct \
     --num-prompts 20 \
+    --result-dir ./test_results \
+    --result-filename tp_pp.json \
+    --save-result \
     --endpoint /v1/completions
-kill -s SIGTERM $server_pid &
+kill -s SIGTERM $server_pid; wait $server_pid || true
+failed_req=$(jq '.failed' ./test_results/tp_pp.json)
+if [ "$failed_req" -ne 0 ]; then
+  echo "Some requests were failed!"
+  exit 1
+fi
 
 echo "--- DP+TP"
 vllm serve meta-llama/Llama-3.2-3B-Instruct -tp=2 -dp=2 &
 server_pid=$!
-timeout 600 bash -c "until curl localhost:8000/v1/models; do sleep 1; done" || exit 1
+timeout 600 bash -c "until curl localhost:8000/v1/models > /dev/null 2>&1; do sleep 1; done" || exit 1
 vllm bench serve \
     --backend vllm \
     --dataset-name random \
     --model meta-llama/Llama-3.2-3B-Instruct \
     --num-prompts 20 \
+    --result-dir ./test_results \
+    --result-filename dp_pp.json \
+    --save-result \
     --endpoint /v1/completions
-kill -s SIGTERM $server_pid &
+kill -s SIGTERM $server_pid; wait $server_pid || true
+failed_req=$(jq '.failed' ./test_results/dp_pp.json)
+if [ "$failed_req" -ne 0 ]; then
+  echo "Some requests were failed!"
+  exit 1
+fi

.buildkite/scripts/hardware_ci/run-cpu-test-ppc64le.sh

@@ -27,7 +27,7 @@ function cpu_tests() {
   podman exec -it "$container_id" bash -c "
     export TORCH_COMPILE_DISABLE=1
     set -xve
-    python3 examples/offline_inference/basic/generate.py --model facebook/opt-125m" >> $HOME/test_basic.log
+    python3 examples/offline_inference/basic/generate.py --model facebook/opt-125m" >> "$HOME"/test_basic.log
 
   # Run basic model test
   podman exec -it "$container_id" bash -c "
@@ -43,7 +43,7 @@ function cpu_tests() {
     pytest -v -s tests/models/language/generation/test_common.py::test_models[False-False-5-32-google/gemma-1.1-2b-it]
     pytest -v -s tests/models/language/pooling/test_classification.py::test_models[float-jason9693/Qwen2.5-1.5B-apeach]
     # TODO: Below test case tests/models/language/pooling/test_embedding.py::test_models[True-ssmits/Qwen2-7B-Instruct-embed-base] fails on ppc64le. Disabling it for time being.
-    # pytest -v -s tests/models/language/pooling/test_embedding.py -m cpu_model" >> $HOME/test_rest.log
+    # pytest -v -s tests/models/language/pooling/test_embedding.py -m cpu_model" >> "$HOME"/test_rest.log
 }
 
 # All of CPU tests are expected to be finished less than 40 mins.

.buildkite/scripts/hardware_ci/run-cpu-test.sh

@@ -16,5 +16,5 @@ echo "--- :docker: Building Docker image"
 docker build --progress plain --tag "$IMAGE_NAME" --target vllm-test -f docker/Dockerfile.cpu .
 
 # Run the image, setting --shm-size=4g for tensor parallel.
-docker run --rm --cpuset-cpus=$CORE_RANGE --cpuset-mems=$NUMA_NODE -v ~/.cache/huggingface:/root/.cache/huggingface --privileged=true -e HF_TOKEN -e VLLM_CPU_KVCACHE_SPACE=16 -e VLLM_CPU_CI_ENV=1 -e VLLM_CPU_SIM_MULTI_NUMA=1 --shm-size=4g $IMAGE_NAME \
-        timeout $TIMEOUT_VAL bash -c "set -euox pipefail; echo \"--- Print packages\"; pip list; echo \"--- Running tests\"; ${TEST_COMMAND}"
+docker run --rm --cpuset-cpus="$CORE_RANGE" --cpuset-mems="$NUMA_NODE" -v ~/.cache/huggingface:/root/.cache/huggingface --privileged=true -e HF_TOKEN -e VLLM_CPU_KVCACHE_SPACE=16 -e VLLM_CPU_CI_ENV=1 -e VLLM_CPU_SIM_MULTI_NUMA=1 --shm-size=4g "$IMAGE_NAME" \
+        timeout "$TIMEOUT_VAL" bash -c "set -euox pipefail; echo \"--- Print packages\"; pip list; echo \"--- Running tests\"; ${TEST_COMMAND}"

.buildkite/scripts/hardware_ci/run-hpu-test.sh

@@ -1,17 +1,42 @@
 #!/bin/bash
 
-# This script build the CPU docker image and run the offline inference inside the container.
+# This script builds the HPU docker image and runs the offline inference inside the container.
 # It serves a sanity check for compilation and basic model usage.
+#
+# vllm-gaudi compatibility pinning:
+#   The vllm-gaudi plugin is installed on top of the vllm upstream checkout used by this CI job.
+#   When upstream vllm changes its API, the plugin may break before it has been updated.
+#   To handle this, the vllm-gaudi repository maintains a file:
+#     vllm/last-good-commit-for-vllm-gaudi/VLLM_COMMUNITY_COMMIT
+#   The first line of that file controls what version of vllm is used inside the Docker image:
+#     - "latest"        : no checkout override; the current Buildkite CI commit is used as-is.
+#     - "<commit SHA>"  : vllm is checked out to that specific commit before building, pinning
+#                         the test to a known-compatible baseline.
+#   To unpin (resume testing against the live vllm tip), set the file content back to "latest".
 set -exuo pipefail
 
+# Fetch the vllm community commit reference from vllm-gaudi (first line only).
+VLLM_COMMUNITY_COMMIT=$(curl -s \
+  https://raw.githubusercontent.com/vllm-project/vllm-gaudi/vllm/last-good-commit-for-vllm-gaudi/VLLM_COMMUNITY_COMMIT \
+  | head -1 | tr -d '\n')
+
+echo "Using vllm community commit: ${VLLM_COMMUNITY_COMMIT}"
+
 # Try building the docker image
 image_name="hpu/upstream-vllm-ci:${BUILDKITE_COMMIT}"
 container_name="hpu-upstream-vllm-ci-${BUILDKITE_COMMIT}-container"
-cat <<EOF | docker build -t ${image_name} -f - .
+cat <<EOF | docker build -t "${image_name}" -f - .
 FROM gaudi-base-image:latest
 
 COPY ./ /workspace/vllm
 
+# If VLLM_COMMUNITY_COMMIT is a specific commit (not "latest"), check it out to pin vllm
+# to the version known to be compatible with vllm-gaudi. When the value is "latest",
+# the current checkout (the Buildkite CI commit) is used unchanged.
+RUN if [ "${VLLM_COMMUNITY_COMMIT}" != "latest" ]; then \
+      cd /workspace/vllm && git fetch --unshallow 2>/dev/null || true && git checkout ${VLLM_COMMUNITY_COMMIT}; \
+    fi
+
 WORKDIR /workspace/vllm
 
 ENV no_proxy=localhost,127.0.0.1
@@ -39,12 +64,12 @@ EOF
 # functions, while other platforms only need one remove_docker_container
 # function.
 EXITCODE=1
-remove_docker_containers() { docker rm -f ${container_name} || true; }
+remove_docker_containers() { docker rm -f "${container_name}" || true; }
 trap 'remove_docker_containers; exit $EXITCODE;' EXIT
 remove_docker_containers
 
 echo "Running HPU plugin v1 test"
-docker run --rm --runtime=habana --name=${container_name} --network=host \
+docker run --rm --runtime=habana --name="${container_name}" --network=host \
   -e HABANA_VISIBLE_DEVICES=all \
   -e VLLM_SKIP_WARMUP=true \
   -e PT_HPU_ENABLE_LAZY_COLLECTIVES=true \

.buildkite/scripts/hardware_ci/run-npu-test.sh

@@ -41,6 +41,7 @@ get_config() {
         echo "Error: file '${TEST_RUN_CONFIG_FILE}' does not exist in the warehouse" >&2
         exit 1
     fi
+    # shellcheck source=/dev/null
     source "${TEST_RUN_CONFIG_FILE}"
     echo "Base docker image name that get from configuration: ${BASE_IMAGE_NAME}"
     return 0
@@ -48,9 +49,8 @@ get_config() {
 
 # get test running configuration.
 fetch_vllm_test_cfg
-get_config
 # Check if the function call was successful. If not, exit the script.
-if [ $? -ne 0 ]; then
+if ! get_config; then
   exit 1
 fi
 
@@ -62,14 +62,14 @@ agent_idx=$(echo "${BUILDKITE_AGENT_NAME}" | awk -F'-' '{print $(NF-1)}')
 echo "agent_idx: ${agent_idx}"
 builder_name="cachebuilder${agent_idx}"
 builder_cache_dir="/mnt/docker-cache${agent_idx}"
-mkdir -p ${builder_cache_dir}
+mkdir -p "${builder_cache_dir}"
 
 # Try building the docker image
 cat <<EOF | DOCKER_BUILDKIT=1 docker build \
-    --add-host cache-service-vllm.nginx-pypi-cache.svc.cluster.local:${PYPI_CACHE_HOST} \
-    --builder ${builder_name} --cache-from type=local,src=${builder_cache_dir} \
-                           --cache-to type=local,dest=${builder_cache_dir},mode=max \
-    --progress=plain --load -t ${image_name} -f - .
+    --add-host cache-service-vllm.nginx-pypi-cache.svc.cluster.local:"${PYPI_CACHE_HOST}" \
+    --builder "${builder_name}" --cache-from type=local,src="${builder_cache_dir}" \
+                           --cache-to type=local,dest="${builder_cache_dir}",mode=max \
+    --progress=plain --load -t "${image_name}" -f - .
 FROM ${BASE_IMAGE_NAME}
 
 # Define environments
@@ -116,7 +116,7 @@ RUN --mount=type=cache,target=/root/.cache/pip \
     export PIP_EXTRA_INDEX_URL=https://mirrors.huaweicloud.com/ascend/repos/pypi && \
     source /usr/local/Ascend/ascend-toolkit/set_env.sh && \
     source /usr/local/Ascend/nnal/atb/set_env.sh && \
-    export LD_LIBRARY_PATH=\$LD_LIBRARY_PATH:/usr/local/Ascend/ascend-toolkit/latest/`uname -i`-linux/devlib && \
+    export LD_LIBRARY_PATH=\$LD_LIBRARY_PATH:/usr/local/Ascend/ascend-toolkit/latest/$(uname -i)-linux/devlib && \
     python3 -m pip install -v -e /workspace/vllm-ascend/ --extra-index https://download.pytorch.org/whl/cpu/
 
 ENV VLLM_WORKER_MULTIPROC_METHOD=spawn
@@ -139,7 +139,7 @@ trap remove_docker_container EXIT
 # Generate corresponding --device args based on BUILDKITE_AGENT_NAME
 # Ascend NPU BUILDKITE_AGENT_NAME format is {hostname}-{agent_idx}-{npu_card_num}cards, and agent_idx starts from 1.
 #   e.g. atlas-a2-001-1-2cards means this is the 1-th agent on atlas-a2-001 host, and it has 2 NPU cards.
-#   returns --device /dev/davinci0 --device /dev/davinci1
+#   returns one argument per line: --device, /dev/davinciX, ...
 parse_and_gen_devices() {
     local input="$1"
     local index cards_num
@@ -151,29 +151,24 @@ parse_and_gen_devices() {
         return 1
     fi
 
-    local devices=""
     local i=0
     while (( i < cards_num )); do
         local dev_idx=$(((index - 1)*cards_num + i ))
-        devices="$devices --device /dev/davinci${dev_idx}"
+        printf '%s\n' "--device"
+        printf '%s\n' "/dev/davinci${dev_idx}"
         ((i++))
     done
-
-    # trim leading space
-    devices="${devices#"${devices%%[![:space:]]*}"}"
-    # Output devices: assigned to the caller variable
-    printf '%s' "$devices"
 }
 
-devices=$(parse_and_gen_devices "${BUILDKITE_AGENT_NAME}") || exit 1
+mapfile -t device_args < <(parse_and_gen_devices "${BUILDKITE_AGENT_NAME}") || exit 1
 
 # Run the image and execute the Out-Of-Tree (OOT) platform interface test case on Ascend NPU hardware.
 # This test checks whether the OOT platform interface is functioning properly in conjunction with
 # the hardware plugin vllm-ascend.
 model_cache_dir=/mnt/modelscope${agent_idx}
-mkdir -p ${model_cache_dir}
+mkdir -p "${model_cache_dir}"
 docker run \
-    ${devices} \
+    "${device_args[@]}" \
     --device /dev/davinci_manager \
     --device /dev/devmm_svm \
     --device /dev/hisi_hdc \
@@ -182,7 +177,7 @@ docker run \
     -v /usr/local/Ascend/driver/lib64/:/usr/local/Ascend/driver/lib64/ \
     -v /usr/local/Ascend/driver/version.info:/usr/local/Ascend/driver/version.info \
     -v /etc/ascend_install.info:/etc/ascend_install.info \
-    -v ${model_cache_dir}:/root/.cache/modelscope \
+    -v "${model_cache_dir}":/root/.cache/modelscope \
     --entrypoint="" \
     --name "${container_name}" \
     "${image_name}" \

.buildkite/scripts/hardware_ci/run-tpu-v1-test-part2.sh

@@ -61,7 +61,7 @@ echo "Results will be stored in: $RESULTS_DIR"
 echo "--- Installing Python dependencies ---"
 python3 -m pip install --progress-bar off git+https://github.com/thuml/depyf.git \
     && python3 -m pip install --progress-bar off pytest pytest-asyncio tpu-info \
-    && python3 -m pip install --progress-bar off "lm-eval[api]>=0.4.9.2" \
+    && python3 -m pip install --progress-bar off "lm-eval[api]>=0.4.11" \
     && python3 -m pip install --progress-bar off hf-transfer tblib==3.1.0
 echo "--- Python dependencies installed ---"
 

.buildkite/scripts/hardware_ci/run-tpu-v1-test.sh

@@ -61,7 +61,7 @@ echo "Results will be stored in: $RESULTS_DIR"
 echo "--- Installing Python dependencies ---"
 python3 -m pip install --progress-bar off git+https://github.com/thuml/depyf.git \
     && python3 -m pip install --progress-bar off pytest pytest-asyncio tpu-info \
-    && python3 -m pip install --progress-bar off "lm-eval[api]>=0.4.9.2" \
+    && python3 -m pip install --progress-bar off "lm-eval[api]>=0.4.11" \
     && python3 -m pip install --progress-bar off hf-transfer tblib==3.1.0
 echo "--- Python dependencies installed ---"
 

.buildkite/scripts/hardware_ci/run-xpu-test.sh

@@ -8,7 +8,7 @@ image_name="xpu/vllm-ci:${BUILDKITE_COMMIT}"
 container_name="xpu_${BUILDKITE_COMMIT}_$(tr -dc A-Za-z0-9 < /dev/urandom | head -c 10; echo)"
 
 # Try building the docker image
-docker build -t ${image_name} -f docker/Dockerfile.xpu .
+docker build -t "${image_name}" -f docker/Dockerfile.xpu .
 
 # Setup cleanup
 remove_docker_container() {
@@ -39,6 +39,7 @@ docker run \
     python3 examples/offline_inference/basic/generate.py --model facebook/opt-125m --block-size 64 --enforce-eager -tp 2 --distributed-executor-backend ray
     python3 examples/offline_inference/basic/generate.py --model facebook/opt-125m --block-size 64 --enforce-eager -tp 2 --distributed-executor-backend mp
     python3 examples/offline_inference/basic/generate.py --model facebook/opt-125m --block-size 64 --enforce-eager --attention-backend=TRITON_ATTN
+    python3 examples/offline_inference/basic/generate.py --model facebook/opt-125m --block-size 64 --enforce-eager --quantization fp8
     python3 examples/offline_inference/basic/generate.py --model superjob/Qwen3-4B-Instruct-2507-GPTQ-Int4  --block-size 64 --enforce-eager
     python3 examples/offline_inference/basic/generate.py --model ibm-research/PowerMoE-3b  --block-size 64 --enforce-eager -tp 2
     python3 examples/offline_inference/basic/generate.py --model ibm-research/PowerMoE-3b  --block-size 64 --enforce-eager -tp 2 --enable-expert-parallel

.buildkite/scripts/push-nightly-builds.sh

@@ -21,16 +21,16 @@ echo "Pushing original tag $ORIG_TAG_NAME$ORIG_TAG_SUFFIX to new nightly tag nam
 
 # pull original arch-dependent images from AWS ECR Public
 aws ecr-public get-login-password --region us-east-1 | docker login --username AWS --password-stdin public.ecr.aws/q9t5s3a7
-docker pull public.ecr.aws/q9t5s3a7/vllm-release-repo:$ORIG_TAG_NAME-x86_64$ORIG_TAG_SUFFIX
-docker pull public.ecr.aws/q9t5s3a7/vllm-release-repo:$ORIG_TAG_NAME-aarch64$ORIG_TAG_SUFFIX
+docker pull public.ecr.aws/q9t5s3a7/vllm-release-repo:"$ORIG_TAG_NAME"-x86_64"$ORIG_TAG_SUFFIX"
+docker pull public.ecr.aws/q9t5s3a7/vllm-release-repo:"$ORIG_TAG_NAME"-aarch64"$ORIG_TAG_SUFFIX"
 # tag arch-dependent images
-docker tag public.ecr.aws/q9t5s3a7/vllm-release-repo:$ORIG_TAG_NAME-x86_64$ORIG_TAG_SUFFIX vllm/vllm-openai:$TAG_NAME-x86_64
-docker tag public.ecr.aws/q9t5s3a7/vllm-release-repo:$ORIG_TAG_NAME-aarch64$ORIG_TAG_SUFFIX vllm/vllm-openai:$TAG_NAME-aarch64
+docker tag public.ecr.aws/q9t5s3a7/vllm-release-repo:"$ORIG_TAG_NAME"-x86_64"$ORIG_TAG_SUFFIX" vllm/vllm-openai:"$TAG_NAME"-x86_64
+docker tag public.ecr.aws/q9t5s3a7/vllm-release-repo:"$ORIG_TAG_NAME"-aarch64"$ORIG_TAG_SUFFIX" vllm/vllm-openai:"$TAG_NAME"-aarch64
 # push arch-dependent images to DockerHub
-docker push vllm/vllm-openai:$TAG_NAME-x86_64
-docker push vllm/vllm-openai:$TAG_NAME-aarch64
+docker push vllm/vllm-openai:"$TAG_NAME"-x86_64
+docker push vllm/vllm-openai:"$TAG_NAME"-aarch64
 # push arch-independent manifest to DockerHub
-docker manifest create vllm/vllm-openai:$TAG_NAME vllm/vllm-openai:$TAG_NAME-x86_64 vllm/vllm-openai:$TAG_NAME-aarch64 --amend
-docker manifest create vllm/vllm-openai:$TAG_NAME-$BUILDKITE_COMMIT vllm/vllm-openai:$TAG_NAME-x86_64 vllm/vllm-openai:$TAG_NAME-aarch64 --amend
-docker manifest push vllm/vllm-openai:$TAG_NAME
-docker manifest push vllm/vllm-openai:$TAG_NAME-$BUILDKITE_COMMIT
+docker manifest create vllm/vllm-openai:"$TAG_NAME" vllm/vllm-openai:"$TAG_NAME"-x86_64 vllm/vllm-openai:"$TAG_NAME"-aarch64 --amend
+docker manifest create vllm/vllm-openai:"$TAG_NAME"-"$BUILDKITE_COMMIT" vllm/vllm-openai:"$TAG_NAME"-x86_64 vllm/vllm-openai:"$TAG_NAME"-aarch64 --amend
+docker manifest push vllm/vllm-openai:"$TAG_NAME"
+docker manifest push vllm/vllm-openai:"$TAG_NAME"-"$BUILDKITE_COMMIT"

.buildkite/scripts/run-prime-rl-test.sh

@@ -1,64 +0,0 @@
-#!/bin/bash
-# SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
-
-# Setup script for Prime-RL integration tests
-# This script prepares the environment for running Prime-RL tests with nightly vLLM
-
-set -euo pipefail
-
-SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-REPO_ROOT="$(cd "${SCRIPT_DIR}/../.." && pwd)"
-PRIME_RL_REPO="https://github.com/PrimeIntellect-ai/prime-rl.git"
-PRIME_RL_DIR="${REPO_ROOT}/prime-rl"
-
-if command -v rocm-smi &> /dev/null || command -v rocminfo &> /dev/null; then
-    echo "AMD GPU detected. Prime-RL currently only supports NVIDIA. Skipping..."
-    exit 0
-fi
-
-echo "Setting up Prime-RL integration test environment..."
-
-# Clean up any existing Prime-RL directory
-if [ -d "${PRIME_RL_DIR}" ]; then
-    echo "Removing existing Prime-RL directory..."
-    rm -rf "${PRIME_RL_DIR}"
-fi
-
-# Install UV if not available
-if ! command -v uv &> /dev/null; then
-    echo "Installing UV package manager..."
-    curl -LsSf https://astral.sh/uv/install.sh | sh
-    source $HOME/.local/bin/env
-fi
-
-# Clone Prime-RL repository at specific branch for reproducible tests
-PRIME_RL_BRANCH="integ-vllm-main"
-echo "Cloning Prime-RL repository at branch: ${PRIME_RL_BRANCH}..."
-git clone --branch "${PRIME_RL_BRANCH}" --single-branch "${PRIME_RL_REPO}" "${PRIME_RL_DIR}"
-cd "${PRIME_RL_DIR}"
-
-echo "Setting up UV project environment..."
-export UV_PROJECT_ENVIRONMENT=/usr/local
-ln -s /usr/bin/python3 /usr/local/bin/python
-
-# Remove vllm pin from pyproject.toml
-echo "Removing vllm pin from pyproject.toml..."
-sed -i '/vllm==/d' pyproject.toml
-
-# Sync Prime-RL dependencies
-echo "Installing Prime-RL dependencies..."
-uv sync --inexact && uv sync --inexact --all-extras
-
-# Verify installation
-echo "Verifying installations..."
-uv run python -c "import vllm; print(f'vLLM version: {vllm.__version__}')"
-uv run python -c "import prime_rl; print('Prime-RL imported successfully')"
-
-echo "Prime-RL integration test environment setup complete!"
-
-echo "Running Prime-RL integration tests..."
-export WANDB_MODE=offline # this makes this test not require a WANDB_API_KEY
-uv run pytest -vs tests/integration/test_rl.py -m gpu
-
-echo "Prime-RL integration tests completed!"

.buildkite/scripts/scheduled_integration_test/deepseek_v2_lite_ep_eplb.sh

@@ -51,14 +51,14 @@ for BACK in "${BACKENDS[@]}"; do
     --enable-eplb \
     --trust-remote-code \
     --max-model-len 2048 \
-    --all2all-backend $BACK \
-    --port $PORT &
+    --all2all-backend "$BACK" \
+    --port "$PORT" &
   SERVER_PID=$!
-  wait_for_server $PORT
+  wait_for_server "$PORT"
 
   TAG=$(echo "$MODEL" | tr '/: \\n' '_____')
   OUT="${OUT_DIR}/${TAG}_${BACK}.json"
-  python3 tests/evals/gsm8k/gsm8k_eval.py --host http://127.0.0.1 --port $PORT --num-questions ${NUM_Q} --save-results ${OUT}
+  python3 tests/evals/gsm8k/gsm8k_eval.py --host http://127.0.0.1 --port "$PORT" --num-questions "${NUM_Q}" --save-results "${OUT}"
   python3 - <<PY
 import json; acc=json.load(open('${OUT}'))['accuracy']
 print(f"${MODEL} ${BACK}: accuracy {acc:.3f}")

.buildkite/scripts/scheduled_integration_test/deepseek_v2_lite_prefetch_offload.sh

@@ -0,0 +1,57 @@
+#!/usr/bin/env bash
+set -euxo pipefail
+
+# Nightly e2e test for prefetch offloading with a MoE model.
+# Runs DeepSeek-V2-Lite with prefetch offloading of MoE expert weights
+# and validates GSM8K accuracy matches baseline (no offloading).
+#
+# args: [THRESHOLD] [NUM_QUESTIONS] [START_PORT]
+THRESHOLD=${1:-0.25}
+NUM_Q=${2:-1319}
+PORT=${3:-8030}
+OUT_DIR=${OUT_DIR:-/tmp/vllm-scheduled}
+mkdir -p "${OUT_DIR}"
+
+wait_for_server() {
+  local port=$1
+  timeout 600 bash -c '
+    until curl -sf "http://127.0.0.1:'"$port"'/health" > /dev/null; do
+      sleep 1
+    done'
+}
+
+MODEL="deepseek-ai/DeepSeek-V2-Lite"
+
+cleanup() {
+  if [[ -n "${SERVER_PID:-}" ]] && kill -0 "${SERVER_PID}" 2>/dev/null; then
+    kill "${SERVER_PID}" 2>/dev/null || true
+    for _ in {1..20}; do
+      kill -0 "${SERVER_PID}" 2>/dev/null || break
+      sleep 0.5
+    done
+    kill -9 "${SERVER_PID}" 2>/dev/null || true
+  fi
+}
+trap cleanup EXIT
+
+vllm serve "$MODEL" \
+  --max-model-len 2048 \
+  --offload-group-size 8 \
+  --offload-num-in-group 2 \
+  --offload-prefetch-step 1 \
+  --offload-params w13_weight w2_weight \
+  --port "$PORT" &
+SERVER_PID=$!
+wait_for_server "$PORT"
+
+TAG=$(echo "$MODEL" | tr '/: \\n' '_____')
+OUT="${OUT_DIR}/${TAG}_prefetch_offload.json"
+python3 tests/evals/gsm8k/gsm8k_eval.py --host http://127.0.0.1 --port "$PORT" --num-questions "${NUM_Q}" --save-results "${OUT}"
+python3 - <<PY
+import json; acc=json.load(open('${OUT}'))['accuracy']
+print(f"${MODEL} prefetch_offload: accuracy {acc:.3f}")
+assert acc >= ${THRESHOLD}, f"${MODEL} prefetch_offload accuracy {acc}"
+PY
+
+cleanup
+SERVER_PID=

.buildkite/scripts/scheduled_integration_test/qwen30b_a3b_fp8_block_ep_eplb.sh

@@ -47,20 +47,20 @@ for BACK in "${BACKENDS[@]}"; do
   vllm serve "$MODEL" \
     --enforce-eager \
     --enable-eplb \
-    --all2all-backend $BACK \
+    --all2all-backend "$BACK" \
     --eplb-config '{"window_size":10, "step_interval":100, "num_redundant_experts":0, "log_balancedness":true}' \
-    --tensor-parallel-size ${TENSOR_PARALLEL_SIZE} \
-    --data-parallel-size ${DATA_PARALLEL_SIZE} \
+    --tensor-parallel-size "${TENSOR_PARALLEL_SIZE}" \
+    --data-parallel-size "${DATA_PARALLEL_SIZE}" \
     --enable-expert-parallel \
     --trust-remote-code \
     --max-model-len 2048 \
-    --port $PORT &
+    --port "$PORT" &
   SERVER_PID=$!
-  wait_for_server $PORT
+  wait_for_server "$PORT"
 
   TAG=$(echo "$MODEL" | tr '/: \\n' '_____')
   OUT="${OUT_DIR}/${TAG}_${BACK}.json"
-  python3 tests/evals/gsm8k/gsm8k_eval.py --host http://127.0.0.1 --port $PORT --num-questions ${NUM_Q} --save-results ${OUT}
+  python3 tests/evals/gsm8k/gsm8k_eval.py --host http://127.0.0.1 --port "$PORT" --num-questions "${NUM_Q}" --save-results "${OUT}"
   python3 - <<PY
 import json; acc=json.load(open('${OUT}'))['accuracy']
 print(f"${MODEL} ${BACK}: accuracy {acc:.3f}")

.buildkite/scripts/scheduled_integration_test/qwen3_next_mtp_async_eplb.sh

@@ -51,20 +51,20 @@ for BACK in "${BACKENDS[@]}"; do
     --tensor-parallel-size 4 \
     --enable-expert-parallel \
     --enable-eplb \
-    --all2all-backend $BACK \
+    --all2all-backend "$BACK" \
     --eplb-config '{"window_size":200,"step_interval":600,"use_async":true}' \
     --speculative-config '{"method":"qwen3_next_mtp","num_speculative_tokens":1}' \
     --trust-remote-code \
     --max-model-len 2048 \
     --gpu-memory-utilization 0.9 \
     "${PLATFORM_ARGS[@]}" \
-    --port $PORT &
+    --port "$PORT" &
   SERVER_PID=$!
-  wait_for_server $PORT
+  wait_for_server "$PORT"
 
   TAG=$(echo "$MODEL" | tr '/: \\n' '_____')
   OUT="${OUT_DIR}/${TAG}_${BACK}.json"
-  python3 tests/evals/gsm8k/gsm8k_eval.py --host http://127.0.0.1 --port $PORT --num-questions ${NUM_Q} --save-results ${OUT}
+  python3 tests/evals/gsm8k/gsm8k_eval.py --host http://127.0.0.1 --port "$PORT" --num-questions "${NUM_Q}" --save-results "${OUT}"
   python3 - <<PY
 import json; acc=json.load(open('${OUT}'))['accuracy']
 print(f"${MODEL} ${BACK}: accuracy {acc:.3f}")

.buildkite/scripts/tpu/docker_run_bm.sh

@@ -9,10 +9,11 @@ ENV_FILE=$1
 
 # For testing on local vm, use `set -a` to export all variables
 source /etc/environment
-source $ENV_FILE
+# shellcheck source=/dev/null
+source "$ENV_FILE"
 
 remove_docker_container() { 
-    docker rm -f $CONTAINER_NAME || true;
+    docker rm -f "$CONTAINER_NAME" || true;
 }
 
 trap remove_docker_container EXIT
@@ -41,13 +42,13 @@ echo
 echo "starting docker...$CONTAINER_NAME"
 echo    
 docker run \
- -v $DOWNLOAD_DIR:$DOWNLOAD_DIR \
- --env-file $ENV_FILE \
+ -v "$DOWNLOAD_DIR":"$DOWNLOAD_DIR" \
+ --env-file "$ENV_FILE" \
  -e HF_TOKEN="$HF_TOKEN" \
- -e TARGET_COMMIT=$BUILDKITE_COMMIT \
- -e MODEL=$MODEL \
+ -e TARGET_COMMIT="$BUILDKITE_COMMIT" \
+ -e MODEL="$MODEL" \
  -e WORKSPACE=/workspace \
- --name $CONTAINER_NAME \
+ --name "$CONTAINER_NAME" \
  -d \
  --privileged \
  --network host \

.buildkite/scripts/tpu/run_bm.sh

@@ -42,21 +42,21 @@ echo "lanching vllm..."
 echo "logging to $VLLM_LOG"
 echo
 
-vllm serve $MODEL \
+vllm serve "$MODEL" \
  --seed 42 \
- --max-num-seqs $MAX_NUM_SEQS \
- --max-num-batched-tokens $MAX_NUM_BATCHED_TOKENS \
- --tensor-parallel-size $TENSOR_PARALLEL_SIZE \
+ --max-num-seqs "$MAX_NUM_SEQS" \
+ --max-num-batched-tokens "$MAX_NUM_BATCHED_TOKENS" \
+ --tensor-parallel-size "$TENSOR_PARALLEL_SIZE" \
  --no-enable-prefix-caching \
- --download_dir $DOWNLOAD_DIR \
- --max-model-len $MAX_MODEL_LEN > "$VLLM_LOG" 2>&1 &
+ --download_dir "$DOWNLOAD_DIR" \
+ --max-model-len "$MAX_MODEL_LEN" > "$VLLM_LOG" 2>&1 &
 
 
 echo "wait for 20 minutes.."
 echo
 # sleep 1200
 # wait for 10 minutes...
-for i in {1..120}; do
+for _ in {1..120}; do
     # TODO: detect other type of errors.
     if grep -Fq "raise RuntimeError" "$VLLM_LOG"; then
         echo "Detected RuntimeError, exiting."
@@ -78,11 +78,11 @@ echo "logging to $BM_LOG"
 echo
 vllm bench serve \
     --backend vllm \
-    --model $MODEL  \
+    --model "$MODEL"  \
     --dataset-name sonnet \
     --dataset-path benchmarks/sonnet_4x.txt \
-    --sonnet-input-len $INPUT_LEN \
-    --sonnet-output-len $OUTPUT_LEN \
+    --sonnet-input-len "$INPUT_LEN" \
+    --sonnet-output-len "$OUTPUT_LEN" \
     --ignore-eos > "$BM_LOG"
 
 echo "completed..."

.buildkite/scripts/upload-nightly-wheels.sh

@@ -76,16 +76,15 @@ mkdir -p "$INDICES_OUTPUT_DIR"
 # this indices have relative paths that could work as long as it is next to the wheel directory in s3
 # i.e., the wheels are always in s3://vllm-wheels/<commit>/
 # and indices can be placed in /<commit>/, or /nightly/, or /<version>/
-if [[ ! -z "$DEFAULT_VARIANT_ALIAS" ]]; then
-    alias_arg="--alias-to-default $DEFAULT_VARIANT_ALIAS"
-else
-    alias_arg=""
+alias_args=()
+if [[ -n "$DEFAULT_VARIANT_ALIAS" ]]; then
+    alias_args=(--alias-to-default "$DEFAULT_VARIANT_ALIAS")
 fi
 
 # HACK: we do not need regex module here, but it is required by pre-commit hook
 # To avoid any external dependency, we simply replace it back to the stdlib re module
 sed -i 's/import regex as re/import re/g' .buildkite/scripts/generate-nightly-index.py
-$PYTHON .buildkite/scripts/generate-nightly-index.py --version "$SUBPATH" --current-objects "$obj_json" --output-dir "$INDICES_OUTPUT_DIR" --comment "commit $BUILDKITE_COMMIT" $alias_arg
+$PYTHON .buildkite/scripts/generate-nightly-index.py --version "$SUBPATH" --current-objects "$obj_json" --output-dir "$INDICES_OUTPUT_DIR" --comment "commit $BUILDKITE_COMMIT" "${alias_args[@]}"
 
 # copy indices to /<commit>/ unconditionally
 echo "Uploading indices to $S3_COMMIT_PREFIX"
@@ -100,9 +99,9 @@ fi
 # re-generate and copy to /<pure_version>/ only if it does not have "dev" in the version
 if [[ "$version" != *"dev"* ]]; then
     echo "Re-generating indices for /$pure_version/"
-    rm -rf "$INDICES_OUTPUT_DIR/*"
+    rm -rf "${INDICES_OUTPUT_DIR:?}/*"
     mkdir -p "$INDICES_OUTPUT_DIR"
     # wheel-dir is overridden to be the commit directory, so that the indices point to the correct wheel path
-    $PYTHON .buildkite/scripts/generate-nightly-index.py --version "$pure_version" --wheel-dir "$SUBPATH" --current-objects "$obj_json" --output-dir "$INDICES_OUTPUT_DIR" --comment "version $pure_version" $alias_arg
+    $PYTHON .buildkite/scripts/generate-nightly-index.py --version "$pure_version" --wheel-dir "$SUBPATH" --current-objects "$obj_json" --output-dir "$INDICES_OUTPUT_DIR" --comment "version $pure_version" "${alias_args[@]}"
     aws s3 cp --recursive "$INDICES_OUTPUT_DIR/" "s3://$BUCKET/$pure_version/"
 fi

.buildkite/scripts/upload-release-wheels-pypi.sh

@@ -7,7 +7,7 @@ SUBPATH=$BUILDKITE_COMMIT
 S3_COMMIT_PREFIX="s3://$BUCKET/$SUBPATH/"
 
 RELEASE_VERSION=$(buildkite-agent meta-data get release-version)
-GIT_VERSION=$(git describe --exact-match --tags $BUILDKITE_COMMIT 2>/dev/null)
+GIT_VERSION=$(git describe --exact-match --tags "$BUILDKITE_COMMIT" 2>/dev/null)
 
 echo "Release version from Buildkite: $RELEASE_VERSION"
 
@@ -55,7 +55,7 @@ mkdir -p $DIST_DIR
 aws s3 cp --recursive --exclude "*" --include "vllm-${PURE_VERSION}*.whl" --exclude "*dev*" --exclude "*rc[0-9]*" "$S3_COMMIT_PREFIX" $DIST_DIR
 echo "Wheels copied to local directory"
 # generate source tarball
-git archive --format=tar.gz --output="$DIST_DIR/vllm-${PURE_VERSION}.tar.gz" $BUILDKITE_COMMIT
+git archive --format=tar.gz --output="$DIST_DIR/vllm-${PURE_VERSION}.tar.gz" "$BUILDKITE_COMMIT"
 ls -la $DIST_DIR
 
 # upload wheels to PyPI (only default variant, i.e. files without '+' in the name)
@@ -65,6 +65,6 @@ if [[ -z "$PYPI_WHEEL_FILES" ]]; then
   exit 1
 fi
 
-python3 -m twine check $PYPI_WHEEL_FILES
-python3 -m twine upload --non-interactive --verbose $PYPI_WHEEL_FILES
+python3 -m twine check "$PYPI_WHEEL_FILES"
+python3 -m twine upload --non-interactive --verbose "$PYPI_WHEEL_FILES"
 echo "Wheels uploaded to PyPI"

.buildkite/scripts/upload-rocm-wheels.sh

@@ -55,7 +55,7 @@ mkdir -p all-rocm-wheels
 cp artifacts/rocm-base-wheels/*.whl all-rocm-wheels/ 2>/dev/null || true
 cp artifacts/rocm-vllm-wheel/*.whl all-rocm-wheels/ 2>/dev/null || true
 
-WHEEL_COUNT=$(ls all-rocm-wheels/*.whl 2>/dev/null | wc -l)
+WHEEL_COUNT=$(find all-rocm-wheels -maxdepth 1 -name '*.whl' 2>/dev/null | wc -l)
 echo "Total wheels to upload: $WHEEL_COUNT"
 
 if [ "$WHEEL_COUNT" -eq 0 ]; then
@@ -115,7 +115,7 @@ if [[ "$BUILDKITE_BRANCH" == "main" && "$BUILDKITE_PULL_REQUEST" == "false" ]] |
 fi
 
 # Extract version from vLLM wheel and update version-specific index
-VLLM_WHEEL=$(ls all-rocm-wheels/vllm*.whl 2>/dev/null | head -1)
+VLLM_WHEEL=$(find all-rocm-wheels -maxdepth 1 -name 'vllm*.whl' 2>/dev/null | head -1)
 if [ -n "$VLLM_WHEEL" ]; then
     VERSION=$(unzip -p "$VLLM_WHEEL" '**/METADATA' | grep '^Version: ' | cut -d' ' -f2)
     echo "Version in wheel: $VERSION"

.buildkite/test_areas/basic_correctness.yaml

@@ -14,3 +14,8 @@ steps:
   - pytest -v -s basic_correctness/test_cumem.py
   - pytest -v -s basic_correctness/test_basic_correctness.py
   - pytest -v -s basic_correctness/test_cpu_offload.py
+  mirror:
+    amd:
+      device: mi325_1
+      depends_on:
+      - image-build-amd

.buildkite/test_areas/benchmarks.yaml

@@ -17,3 +17,15 @@ steps:
   - tests/benchmarks/
   commands:
   - pytest -v -s benchmarks/
+
+- label: Attention Benchmarks Smoke Test (B200)
+  device: b200
+  num_gpus: 2
+  optional: true
+  working_dir: "/vllm-workspace/"
+  timeout_in_minutes: 10
+  source_file_dependencies:
+  - benchmarks/attention_benchmarks/
+  - vllm/v1/attention/
+  commands:
+  - python3 benchmarks/attention_benchmarks/benchmark.py --backends flash flashinfer --batch-specs "8q1s1k" --repeats 1 --warmup-iters 1

.buildkite/test_areas/compile.yaml

@@ -121,13 +121,10 @@ steps:
   optional: true
   commands:
     - nvidia-smi
-    # Run all models and attn backends but only Inductor partition and native custom ops
-    # -k "inductor_partition and not +rms_norm and not +quant_fp8"
+    # Run all models but only FLASHINFER, Inductor partition and native custom ops
     # Qwen requires +quant_fp8 as -quant_fp8 rms+quant fusion is not supported
-    # -k "inductor_partition and not +rms_norm and +quant_fp8 and qwen3"
-    # Run just llama3 (fp8 & fp4) for all config combinations
-    # -k "llama-3"
-    - pytest -v -s tests/compile/fusions_e2e/test_tp1_quant.py -k "inductor_partition and not +rms_norm and not +quant_fp8" -k "inductor_partition and not +rms_norm and +quant_fp8 and qwen3" -k "llama-3"
+    # Run just llama3 (fp8 & fp4) for all config combinations (only inductor partition)
+    - pytest -v -s tests/compile/fusions_e2e/test_tp1_quant.py -k "inductor_partition and (FLASHINFER and not +rms_norm and (not +quant_fp8 or +quant_fp8 and qwen3) or llama-3)"
 
 - label: Fusion E2E TP2 Quick (H100)
   timeout_in_minutes: 20
@@ -162,7 +159,7 @@ steps:
     - tests/compile/fusions_e2e/
   commands:
     - nvidia-smi
-    # Run just llama3 (fp4 & fp8 & bf16) for all config combinations
+    # Run just llama3 (fp8 & bf16) for all config combinations
     - pytest -v -s tests/compile/fusions_e2e/test_tp2_ar_rms.py -k "llama-3"
 
 - label: Fusion E2E TP2 AsyncTP Config Sweep (H100)
@@ -197,7 +194,8 @@ steps:
     - tests/compile/fusions_e2e/
   commands:
     - nvidia-smi
-    # Run all models and attn backends but only Inductor partition and native custom ops
+    # Run all models but only FLASHINFER, Inductor partition and native custom ops
+    # include qwen with +quant_fp8 as -quant_fp8 rms+quant fusion is not supported
     # for ar-rms-quant-fp4, also sweep llama3
-    - pytest -v -s tests/compile/fusions_e2e/test_tp2_ar_rms.py -k "inductor_partition and not +rms_norm and not +quant_fp8" -k "Llama-3.1-8B-Instruct-FP4"
-    - pytest -v -s tests/compile/fusions_e2e/test_tp2_async_tp.py -k "inductor_partition and not +rms_norm and not +quant_fp8"
+    - pytest -v -s tests/compile/fusions_e2e/test_tp2_ar_rms.py -k "(FLASHINFER and inductor_partition and not +rms_norm and (not +quant_fp8 or +quant_fp8 and qwen3)) or Llama-3.1-8B-Instruct-FP4"
+    - pytest -v -s tests/compile/fusions_e2e/test_tp2_async_tp.py -k "FLASHINFER and inductor_partition and not +rms_norm and (not +quant_fp8 or +quant_fp8 and qwen3)"

.buildkite/test_areas/distributed.yaml

@@ -103,8 +103,8 @@ steps:
   - VLLM_ALLOW_INSECURE_SERIALIZATION=1 RAY_DEDUP_LOGS=0 python3 rlhf_colocate.py
   # NEW rlhf examples
   - cd new_weight_syncing
-  - VLLM_ALLOW_INSECURE_SERIALIZATION=1 python3 rlhf.py
-  - VLLM_ALLOW_INSECURE_SERIALIZATION=1 python3 rlhf_async_new_apis.py
+  - VLLM_ALLOW_INSECURE_SERIALIZATION=1 python3 rlhf_nccl.py
+  - VLLM_ALLOW_INSECURE_SERIALIZATION=1 python3 rlhf_ipc.py
 
 - label: Distributed Tests (8 GPUs)(H100)
   timeout_in_minutes: 10
@@ -146,6 +146,7 @@ steps:
   num_devices: 2
   commands:
     - pytest -v -s tests/distributed/test_context_parallel.py
+    # - VLLM_ALLOW_INSECURE_SERIALIZATION=1 python3 examples/offline_inference/new_weight_syncing/rlhf_async_new_apis.py --- failing, need to re-enable
     - VLLM_USE_DEEP_GEMM=1 VLLM_LOGGING_LEVEL=DEBUG python3 examples/offline_inference/data_parallel.py --model=Qwen/Qwen1.5-MoE-A2.7B -tp=1 -dp=2 --max-model-len=2048 --all2all-backend=deepep_high_throughput
     - pytest -v -s tests/v1/distributed/test_dbo.py
 
@@ -165,6 +166,7 @@ steps:
   num_devices: 2
   num_nodes: 2
   no_plugin: true
+  optional: true # TODO: revert once infra issue solved
   source_file_dependencies:
   - vllm/distributed/
   - vllm/engine/
@@ -197,7 +199,18 @@ steps:
     - uv pip install --system -r /vllm-workspace/requirements/kv_connectors.txt
     - DP_EP=1 bash v1/kv_connector/nixl_integration/config_sweep_accuracy_test.sh
 
-- label: Pipeline + Context Parallelism (4 GPUs))
+- label: CrossLayer KV layout Distributed NixlConnector PD accuracy tests (4 GPUs)
+  timeout_in_minutes: 30
+  working_dir: "/vllm-workspace/tests"
+  num_devices: 4
+  source_file_dependencies:
+    - vllm/distributed/kv_transfer/kv_connector/v1/nixl_connector.py
+    - tests/v1/kv_connector/nixl_integration/
+  commands:
+    - uv pip install --system -r /vllm-workspace/requirements/kv_connectors.txt
+    - CROSS_LAYERS_BLOCKS=True bash v1/kv_connector/nixl_integration/config_sweep_accuracy_test.sh
+
+- label: Pipeline + Context Parallelism (4 GPUs)
   timeout_in_minutes: 60
   working_dir: "/vllm-workspace/tests"
   num_devices: 4

.buildkite/test_areas/e2e_integration.yaml

@@ -29,15 +29,11 @@ steps:
   commands:
   - bash .buildkite/scripts/scheduled_integration_test/qwen30b_a3b_fp8_block_ep_eplb.sh 0.8 200 8020 2 1
 
-- label: Prime-RL Integration (2 GPUs)
-  timeout_in_minutes: 30
+- label: DeepSeek V2-Lite Prefetch Offload Accuracy (H100)
+  timeout_in_minutes: 60
+  device: h100
   optional: true
-  soft_fail: true
-  num_devices: 2
+  num_devices: 1
   working_dir: "/vllm-workspace"
-  source_file_dependencies:
-  - vllm/
-  - .buildkite/scripts/run-prime-rl-test.sh
   commands:
-    - nvidia-smi
-    - bash .buildkite/scripts/run-prime-rl-test.sh
+  - bash .buildkite/scripts/scheduled_integration_test/deepseek_v2_lite_prefetch_offload.sh 0.25 200 8030

.buildkite/test_areas/engine.yaml

@@ -14,7 +14,7 @@ steps:
   commands:
   - pytest -v -s engine test_sequence.py test_config.py test_logger.py test_vllm_port.py
 
-- label: V1 e2e + engine
+- label: V1 e2e + engine (1 GPU)
   timeout_in_minutes: 45
   source_file_dependencies:
     - vllm/
@@ -28,3 +28,43 @@ steps:
     - pytest -v -s v1/engine/test_preprocess_error_handling.py
     # Run the rest of v1/engine tests
     - pytest -v -s v1/engine --ignore v1/engine/test_preprocess_error_handling.py
+  mirror:
+    amd:
+      device: mi325_1
+      depends_on:
+      - image-build-amd
+      commands:
+      - pytest -v -s v1/e2e
+      - pytest -v -s v1/engine
+
+- label: V1 e2e (2 GPUs)
+  timeout_in_minutes: 60 # TODO: Fix timeout after we have more confidence in the test stability
+  optional: true
+  num_devices: 2
+  source_file_dependencies:
+    - vllm/
+    - tests/v1/e2e
+  commands:
+    # Only run tests that need exactly 2 GPUs
+    - pytest -v -s v1/e2e/test_spec_decode.py -k "tensor_parallelism"
+  mirror:
+    amd:
+      device: mi325_2
+      depends_on:
+      - image-build-amd
+
+- label: V1 e2e (4 GPUs)
+  timeout_in_minutes: 60 # TODO: Fix timeout after we have more confidence in the test stability
+  optional: true
+  num_devices: 4
+  source_file_dependencies:
+    - vllm/
+    - tests/v1/e2e
+  commands:
+    # Only run tests that need 4 GPUs
+    - pytest -v -s v1/e2e/test_spec_decode.py -k "eagle_correctness_heavy"
+  mirror:
+    amd:
+      device: mi325_4
+      depends_on:
+      - image-build-amd

.buildkite/test_areas/entrypoints.yaml

@@ -24,6 +24,11 @@ steps:
   - pytest -v -s entrypoints/llm --ignore=entrypoints/llm/test_generate.py --ignore=entrypoints/llm/test_collective_rpc.py
   - pytest -v -s entrypoints/llm/test_generate.py # it needs a clean process
   - pytest -v -s entrypoints/offline_mode # Needs to avoid interference with other tests
+  mirror:
+    amd:
+      device: mi325_1
+      depends_on:
+      - image-build-amd
 
 - label: Entrypoints Integration (API Server 1)
   timeout_in_minutes: 130
@@ -42,15 +47,13 @@ steps:
   working_dir: "/vllm-workspace/tests"
   source_file_dependencies:
   - vllm/
-  - tests/tool_use
-  - tests/entrypoints/sleep
-  - tests/entrypoints/instrumentator
   - tests/entrypoints/rpc
+  - tests/entrypoints/instrumentator
+  - tests/tool_use
   commands:
   - export VLLM_WORKER_MULTIPROC_METHOD=spawn
-  - PYTHONPATH=/vllm-workspace pytest -v -s entrypoints/rpc
   - pytest -v -s entrypoints/instrumentator
-  - pytest -v -s entrypoints/sleep
+  - PYTHONPATH=/vllm-workspace pytest -v -s entrypoints/rpc
   - pytest -v -s tool_use
 
 - label: Entrypoints Integration (Pooling)
@@ -62,6 +65,11 @@ steps:
   commands:
   - export VLLM_WORKER_MULTIPROC_METHOD=spawn
   - pytest -v -s entrypoints/pooling
+  mirror:
+    amd:
+      device: mi325_1
+      depends_on:
+      - image-build-amd
 
 - label: Entrypoints Integration (Responses API)
   timeout_in_minutes: 50

.buildkite/test_areas/expert_parallelism.yaml

@@ -20,4 +20,19 @@ steps:
   - tests/distributed/test_eplb_execute.py
   commands:
   - pytest -v -s distributed/test_eplb_execute.py
-  - pytest -v -s distributed/test_eplb_spec_decode.py
+  - pytest -v -s distributed/test_eplb_spec_decode.py
+
+- label: Elastic EP Scaling Test
+  timeout_in_minutes: 20
+  device: b200
+  optional: true
+  working_dir: "/vllm-workspace/tests"
+  num_devices: 4
+  source_file_dependencies:
+  - vllm/distributed/
+  - vllm/engine/
+  - vllm/executor/
+  - vllm/compilation/
+  - tests/distributed/
+  commands:
+  - pytest -v -s distributed/test_elastic_ep.py

.buildkite/test_areas/kernels.yaml

@@ -44,7 +44,8 @@ steps:
   - vllm/envs.py
   - vllm/config
   commands:
-    - pytest -v -s kernels/moe --shard-id=$$BUILDKITE_PARALLEL_JOB --num-shards=$$BUILDKITE_PARALLEL_JOB_COUNT
+    - pytest -v -s kernels/moe --ignore=kernels/moe/test_modular_oai_triton_moe.py --shard-id=$$BUILDKITE_PARALLEL_JOB --num-shards=$$BUILDKITE_PARALLEL_JOB_COUNT
+    - pytest -v -s kernels/moe/test_modular_oai_triton_moe.py --shard-id=$$BUILDKITE_PARALLEL_JOB --num-shards=$$BUILDKITE_PARALLEL_JOB_COUNT
   parallelism: 2
 
 - label: Kernels Mamba Test
@@ -70,7 +71,7 @@ steps:
   - tests/kernels/moe/test_batched_deepgemm.py
   - tests/kernels/attention/test_deepgemm_attention.py
   commands:
-    - pytest -v -s kernels/quantization/test_block_fp8.py -k deep_gemm
+    - pytest -v -s kernels/quantization/test_block_fp8.py
     - pytest -v -s kernels/moe/test_deepgemm.py
     - pytest -v -s kernels/moe/test_batched_deepgemm.py
     - pytest -v -s kernels/attention/test_deepgemm_attention.py
@@ -115,6 +116,7 @@ steps:
     - pytest -v -s tests/kernels/moe/test_nvfp4_moe.py
     - pytest -v -s tests/kernels/moe/test_ocp_mx_moe.py
     - pytest -v -s tests/kernels/moe/test_flashinfer.py
+    - pytest -v -s tests/kernels/moe/test_flashinfer_moe.py
     - pytest -v -s tests/kernels/moe/test_cutedsl_moe.py
     # e2e
     - pytest -v -s tests/models/quantization/test_nvfp4.py
@@ -154,9 +156,7 @@ steps:
   commands:
     - pytest -v -s kernels/moe/test_deepep_deepgemm_moe.py
     - pytest -v -s kernels/moe/test_deepep_moe.py
-    - pytest -v -s kernels/moe/test_pplx_cutlass_moe.py
-    # - pytest -v -s kernels/moe/test_pplx_moe.py - failing on main
-  
+
 - label: Kernels Fp4 MoE Test (B200)
   timeout_in_minutes: 60
   device: b200

.buildkite/test_areas/lm_eval.yaml

@@ -11,17 +11,17 @@ steps:
   commands:
   - pytest -s -v evals/gsm8k/test_gsm8k_correctness.py --config-list-file=configs/models-small.txt
 
-- label: LM Eval Large Models (4 GPUs)(A100)
-  device: a100
-  optional: true
-  num_devices: 4
-  working_dir: "/vllm-workspace/.buildkite/lm-eval-harness"
-  source_file_dependencies:
-  - csrc/
-  - vllm/model_executor/layers/quantization
-  commands:
-  - export VLLM_WORKER_MULTIPROC_METHOD=spawn
-  - pytest -s -v test_lm_eval_correctness.py --config-list-file=configs/models-large.txt --tp-size=4
+# - label: LM Eval Large Models (4 GPUs)(A100)
+#   device: a100
+#   optional: true
+#   num_devices: 4
+#   working_dir: "/vllm-workspace/.buildkite/lm-eval-harness"
+#   source_file_dependencies:
+#   - csrc/
+#   - vllm/model_executor/layers/quantization
+#   commands:
+#   - export VLLM_WORKER_MULTIPROC_METHOD=spawn
+#   - pytest -s -v test_lm_eval_correctness.py --config-list-file=configs/models-large.txt --tp-size=4
 
 - label: LM Eval Large Models (4 GPUs)(H100)
   device: h100
@@ -73,3 +73,29 @@ steps:
   num_devices: 2
   commands:
     - pytest -s -v evals/gsm8k/test_gsm8k_correctness.py --config-list-file=evals/gsm8k/configs/moe-refactor-dp-ep/config-b200.txt
+
+- label: GPQA Eval (GPT-OSS) (H100)
+  timeout_in_minutes: 120
+  device: h100
+  optional: true
+  num_devices: 2
+  source_file_dependencies:
+  - csrc/
+  - vllm/model_executor/layers/quantization
+  - tests/evals/gpt_oss/
+  commands:
+    - uv pip install --system 'gpt-oss[eval]==0.0.5'
+    - pytest -s -v evals/gpt_oss/test_gpqa_correctness.py --config-list-file=configs/models-h100.txt
+
+- label: GPQA Eval (GPT-OSS) (B200)
+  timeout_in_minutes: 120
+  device: b200
+  optional: true
+  num_devices: 2
+  source_file_dependencies:
+  - csrc/
+  - vllm/model_executor/layers/quantization
+  - tests/evals/gpt_oss/
+  commands:
+    - uv pip install --system 'gpt-oss[eval]==0.0.5'
+    - pytest -s -v evals/gpt_oss/test_gpqa_correctness.py --config-list-file=configs/models-b200.txt

.buildkite/test_areas/misc.yaml

@@ -9,6 +9,7 @@ steps:
     - tests/v1
   commands:
     - uv pip install --system -r /vllm-workspace/requirements/kv_connectors.txt
+    - export VLLM_WORKER_MULTIPROC_METHOD=spawn
     # split the test to avoid interference
     - pytest -v -s -m 'not cpu_test' v1/core
     - pytest -v -s v1/executor
@@ -16,6 +17,7 @@ steps:
     - pytest -v -s v1/sample
     - pytest -v -s v1/logits_processors
     - pytest -v -s v1/worker
+    # TODO: create another `optional` test group for slow tests
     - pytest -v -s -m 'not slow_test' v1/spec_decode
     - pytest -v -s -m 'not cpu_test' v1/kv_connector/unit
     - pytest -v -s -m 'not cpu_test' v1/metrics
@@ -25,6 +27,11 @@ steps:
     # Integration test for streaming correctness (requires special branch).
     - pip install -U git+https://github.com/robertgshaw2-redhat/lm-evaluation-harness.git@streaming-api
     - pytest -v -s entrypoints/openai/correctness/test_lmeval.py::test_lm_eval_accuracy_v1_engine
+  mirror:
+    amd:
+      device: mi325_1
+      depends_on:
+      - image-build-amd
 
 - label: V1 Others (CPU)
   depends_on:
@@ -108,9 +115,11 @@ steps:
   timeout_in_minutes: 50
   source_file_dependencies:
   - vllm/
+  - tests/detokenizer
   - tests/multimodal
   - tests/utils_
   commands:
+  - pytest -v -s detokenizer
   - pytest -v -s -m 'not cpu_test' multimodal
   - pytest -v -s utils_
 
@@ -123,6 +132,7 @@ steps:
   - tests/test_inputs.py
   - tests/test_outputs.py
   - tests/test_pooling_params.py
+  - tests/test_ray_env.py
   - tests/multimodal
   - tests/renderers
   - tests/standalone_tests/lazy_imports.py
@@ -136,6 +146,7 @@ steps:
   - pytest -v -s test_inputs.py
   - pytest -v -s test_outputs.py
   - pytest -v -s test_pooling_params.py
+  - pytest -v -s test_ray_env.py
   - pytest -v -s -m 'cpu_test' multimodal
   - pytest -v -s renderers
   - pytest -v -s tokenizers_
@@ -143,20 +154,6 @@ steps:
   - pytest -v -s transformers_utils
   - pytest -v -s config
 
-- label: GPT-OSS Eval (B200)
-  timeout_in_minutes: 60
-  working_dir: "/vllm-workspace/"
-  device: b200
-  optional: true
-  source_file_dependencies:
-  - tests/evals/gpt_oss
-  - vllm/model_executor/models/gpt_oss.py
-  - vllm/model_executor/layers/quantization/mxfp4.py
-  - vllm/v1/attention/backends/flashinfer.py
-  commands:
-    - uv pip install --system 'gpt-oss[eval]==0.0.5'
-    - pytest -s -v tests/evals/gpt_oss/test_gpqa_correctness.py --model openai/gpt-oss-20b --metric 0.58
-
 - label: Batch Invariance (H100)
   timeout_in_minutes: 25
   device: h100

.buildkite/test_areas/models_basic.yaml

@@ -4,7 +4,6 @@ depends_on:
 steps:
 - label: Basic Models Tests (Initialization)
   timeout_in_minutes: 45
-  mirror_hardwares: [amdexperimental]
   torch_nightly: true
   source_file_dependencies:
   - vllm/
@@ -16,7 +15,6 @@ steps:
 
 - label: Basic Models Tests (Extra Initialization) %N
   timeout_in_minutes: 45
-  mirror_hardwares: [amdexperimental]
   torch_nightly: true
   source_file_dependencies:
   - vllm/model_executor/models/
@@ -38,6 +36,12 @@ steps:
   - tests/models/test_registry.py
   commands:
     - pytest -v -s models/test_terratorch.py models/test_transformers.py models/test_registry.py
+  mirror:
+    amd:
+      device: mi325_1
+      depends_on:
+      - image-build-amd
+    
 
 - label: Basic Models Test (Other CPU) # 5min
   depends_on: 

.buildkite/test_areas/models_language.yaml

@@ -4,7 +4,6 @@ depends_on:
 steps:
 - label: Language Models Tests (Standard)
   timeout_in_minutes: 25
-  mirror_hardwares: [amdexperimental]
   torch_nightly: true
   source_file_dependencies:
   - vllm/
@@ -16,7 +15,6 @@ steps:
 
 - label: Language Models Tests (Extra Standard) %N
   timeout_in_minutes: 45
-  mirror_hardwares: [amdexperimental]
   torch_nightly: true
   source_file_dependencies:
   - vllm/model_executor/models/
@@ -32,7 +30,6 @@ steps:
 
 - label: Language Models Tests (Hybrid) %N
   timeout_in_minutes: 75
-  mirror_hardwares: [amdexperimental]
   torch_nightly: true
   source_file_dependencies:
   - vllm/
@@ -40,7 +37,7 @@ steps:
   commands:
     # Install fast path packages for testing against transformers
     # Note: also needed to run plamo2 model in vLLM
-    - uv pip install --system --no-build-isolation 'git+https://github.com/state-spaces/mamba@v2.2.5'
+    - uv pip install --system --no-build-isolation 'git+https://github.com/state-spaces/mamba@v2.3.0'
     - uv pip install --system --no-build-isolation 'git+https://github.com/Dao-AILab/causal-conv1d@v1.5.2'
     # Shard hybrid language model tests
     - pytest -v -s models/language/generation -m hybrid_model --num-shards=$$BUILDKITE_PARALLEL_JOB_COUNT --shard-id=$$BUILDKITE_PARALLEL_JOB
@@ -48,7 +45,6 @@ steps:
 
 - label: Language Models Test (Extended Generation) # 80min
   timeout_in_minutes: 110
-  mirror_hardwares: [amdexperimental]
   optional: true
   source_file_dependencies:
   - vllm/
@@ -56,13 +52,21 @@ steps:
   commands:
     # Install fast path packages for testing against transformers
     # Note: also needed to run plamo2 model in vLLM
-    - uv pip install --system --no-build-isolation 'git+https://github.com/state-spaces/mamba@v2.2.5'
+    - uv pip install --system --no-build-isolation 'git+https://github.com/state-spaces/mamba@v2.3.0'
     - uv pip install --system --no-build-isolation 'git+https://github.com/Dao-AILab/causal-conv1d@v1.5.2'
     - pytest -v -s models/language/generation -m '(not core_model) and (not hybrid_model)'
+  mirror:
+    amd:
+      device: mi325_1
+      depends_on:
+      - image-build-amd
+      commands:
+      - uv pip install --system --no-build-isolation 'git+https://github.com/AndreasKaratzas/mamba@fix-rocm-7.0-warp-size-constexpr'
+      - uv pip install --system --no-build-isolation 'git+https://github.com/Dao-AILab/causal-conv1d@v1.5.2'
+      - pytest -v -s models/language/generation -m '(not core_model) and (not hybrid_model)'
 
 - label: Language Models Test (PPL)
   timeout_in_minutes: 110
-  mirror_hardwares: [amdexperimental]
   optional: true
   source_file_dependencies:
   - vllm/
@@ -72,17 +76,20 @@ steps:
 
 - label: Language Models Test (Extended Pooling)  # 36min
   timeout_in_minutes: 50
-  mirror_hardwares: [amdexperimental]
   optional: true
   source_file_dependencies:
   - vllm/
   - tests/models/language/pooling
   commands:
     - pytest -v -s models/language/pooling -m 'not core_model'
+  mirror:
+    amd:
+      device: mi325_1
+      depends_on:
+      - image-build-amd
 
 - label: Language Models Test (MTEB)
   timeout_in_minutes: 110
-  mirror_hardwares: [amdexperimental]
   optional: true
   source_file_dependencies:
   - vllm/

.buildkite/test_areas/models_multimodal.yaml

@@ -20,6 +20,7 @@ steps:
   source_file_dependencies:
   - vllm/
   - tests/models/multimodal
+  - tests/models/registry.py
   device: cpu
   commands:
     - pip install git+https://github.com/TIGER-AI-Lab/Mantis.git
@@ -30,6 +31,7 @@ steps:
   source_file_dependencies:
   - vllm/
   - tests/models/multimodal
+  - tests/models/registry.py
   commands:
     - pip install git+https://github.com/TIGER-AI-Lab/Mantis.git
     - pytest -v -s models/multimodal/processing/test_tensor_schema.py
@@ -70,12 +72,3 @@ steps:
   commands:
     - pip install git+https://github.com/TIGER-AI-Lab/Mantis.git
     - pytest -v -s models/multimodal/generation/test_common.py -m 'split(group=1) and not core_model'
-
-# This test is used only in PR development phase to test individual models and should never run on main
-- label: Custom Models
-  optional: true
-  commands:
-    - echo 'Testing custom models...'
-    # PR authors can temporarily add commands below to test individual models
-    # e.g. pytest -v -s models/encoder_decoder/vision_language/test_mllama.py
-    # *To avoid merge conflicts, remember to REMOVE (not just comment out) them before merging the PR*

.buildkite/test_areas/plugins.yaml

@@ -19,6 +19,10 @@ steps:
   - pip install -e ./plugins/prithvi_io_processor_plugin
   - pytest -v -s plugins_tests/test_io_processor_plugins.py
   - pip uninstall prithvi_io_processor_plugin -y
+  # test bge_m3_sparse io_processor plugin
+  - pip install -e ./plugins/bge_m3_sparse_plugin
+  - pytest -v -s plugins_tests/test_bge_m3_sparse_io_processor_plugins.py
+  - pip uninstall bge_m3_sparse_plugin -y
   # end io_processor plugins test
   # begin stat_logger plugins test
   - pip install -e ./plugins/vllm_add_dummy_stat_logger

.buildkite/test_areas/ray_compat.yaml

@@ -0,0 +1,16 @@
+group: Ray Compatibility
+depends_on:
+  - image-build
+steps:
+- label: Ray Dependency Compatibility Check
+  # Informational only — does not block the pipeline.
+  # If this fails, it means the PR introduces a dependency that
+  # conflicts with Ray's dependency constraints.
+  # See https://github.com/vllm-project/vllm/issues/33599
+  soft_fail: true
+  timeout_in_minutes: 10
+  source_file_dependencies:
+  - requirements/
+  - setup.py
+  commands:
+  - bash /vllm-workspace/.buildkite/scripts/check-ray-compatibility.sh

.buildkite/test_areas/samplers.yaml

@@ -12,3 +12,10 @@ steps:
   commands:
     - pytest -v -s samplers
     - VLLM_USE_FLASHINFER_SAMPLER=1 pytest -v -s samplers
+  mirror:
+    amd:
+      device: mi325_1
+      depends_on:
+      - image-build-amd
+      commands:
+      - pytest -v -s samplers

.buildkite/test_areas/weight_loading.yaml

@@ -13,13 +13,13 @@ steps:
   commands:
     - bash weight_loading/run_model_weight_loading_test.sh -c weight_loading/models.txt
 
-- label: Weight Loading Multiple GPU - Large Models # optional
-  working_dir: "/vllm-workspace/tests"
-  num_devices: 2
-  device: a100
-  optional: true
-  source_file_dependencies:
-  - vllm/
-  - tests/weight_loading
-  commands:
-    - bash weight_loading/run_model_weight_loading_test.sh -c weight_loading/models-large.txt
+# - label: Weight Loading Multiple GPU - Large Models # optional
+#   working_dir: "/vllm-workspace/tests"
+#   num_devices: 2
+#   device: a100
+#   optional: true
+#   source_file_dependencies:
+#   - vllm/
+#   - tests/weight_loading
+#   commands:
+#     - bash weight_loading/run_model_weight_loading_test.sh -c weight_loading/models-large.txt

.github/.bc-linter.yml

@@ -1,24 +0,0 @@
-# doc: https://github.com/pytorch/test-infra/blob/main/tools/stronghold/docs/bc_linter_config.md
-version: 1
-paths:
-# We temporarily disable globally, and will only enable with `annotations.include`
-# include:
-#   - "vllm/v1/attetion/*.py"
-#   - "vllm/v1/core/*.py"
-exclude:
-  - "**/*.py"
-
-scan:
-  functions: true        # check free functions and methods
-  classes: true          # check classes/dataclasses
-  public_only: true      # ignore names starting with "_" at any level
-
-annotations:
-  include:               # decorators that force‑include a symbol
-    - name: "bc_linter_include"  # matched by simple name or dotted suffix
-      propagate_to_members: false # for classes, include methods/inner classes
-  exclude:               # decorators that force‑exclude a symbol
-    - name: "bc_linter_skip"     # matched by simple name or dotted suffix
-      propagate_to_members: true  # for classes, exclude methods/inner classes
-
-excluded_violations: []  # e.g. ["ParameterRenamed", "FieldTypeChanged"]

.github/CODEOWNERS

@@ -2,45 +2,66 @@
 # for more info about CODEOWNERS file
 
 # This lists cover the "core" components of vLLM that require careful review
-/vllm/executor/executor_base.py @zhuohan123 @youkaichao @alexm-redhat @njhill @22quinn
-/vllm/model_executor/layers/attention @LucasWilkinson
+/vllm/compilation @zou3519 @youkaichao @ProExpertProg @BoyuanFeng
+/vllm/distributed/kv_transfer @NickLucche @ApostaC @orozery
+/vllm/lora @jeejeelee
+/vllm/model_executor/layers/attention @LucasWilkinson @MatthewBonanni
 /vllm/model_executor/layers/fused_moe @mgoin @pavanimajety
 /vllm/model_executor/layers/quantization @mgoin @robertgshaw2-redhat @tlrmchlsmth @yewentao256 @pavanimajety
 /vllm/model_executor/layers/mamba @tdoublep
 /vllm/model_executor/model_loader @22quinn
 /vllm/model_executor/layers/batch_invariant.py @yewentao256 
 /vllm/multimodal @DarkLight1337 @ywang96 @NickLucche @tjtanaa
-/vllm/vllm_flash_attn @LucasWilkinson
-/vllm/lora @jeejeelee
-/vllm/reasoning @aarnphm @chaunceyjiang
-/vllm/entrypoints @aarnphm @chaunceyjiang
-/vllm/tool_parsers @aarnphm @chaunceyjiang
-/vllm/compilation @zou3519 @youkaichao @ProExpertProg
-/vllm/distributed/kv_transfer @NickLucche @ApostaC @orozery
+/vllm/vllm_flash_attn @LucasWilkinson @MatthewBonanni
 CMakeLists.txt @tlrmchlsmth @LucasWilkinson
 
 # Any change to the VllmConfig changes can have a large user-facing impact,
 # so spam a lot of people
 /vllm/config @WoosukKwon @youkaichao @robertgshaw2-redhat @mgoin @tlrmchlsmth @houseroad @hmellor @yewentao256 @ProExpertProg
-/vllm/config/cache.py @WoosukKwon @youkaichao @robertgshaw2-redhat @mgoin @tlrmchlsmth @houseroad @hmellor @yewentao256 @ProExpertProg @heheda12345
+/vllm/config/cache.py @heheda12345
+
+# Entrypoints
+/vllm/entrypoints/anthropic @mgoin @DarkLight1337
+/vllm/entrypoints/cli @hmellor @mgoin @DarkLight1337 @russellb
+/vllm/entrypoints/mcp @heheda12345
+/vllm/entrypoints/openai @aarnphm @chaunceyjiang @DarkLight1337 @russellb
+/vllm/entrypoints/openai/realtime @njhill
+/vllm/entrypoints/openai/speech_to_text @NickLucche
+/vllm/entrypoints/pooling @noooop
+/vllm/entrypoints/sagemaker @DarkLight1337
+/vllm/entrypoints/serve @njhill
+/vllm/entrypoints/*.py @njhill
+/vllm/entrypoints/chat_utils.py @DarkLight1337
+/vllm/entrypoints/llm.py @DarkLight1337
+
+# Input/Output Processing
+/vllm/sampling_params.py @njhill @NickLucche
+/vllm/pooling_params.py @noooop @DarkLight1337
+/vllm/tokenizers @DarkLight1337 @njhill
+/vllm/renderers @DarkLight1337 @njhill
+/vllm/reasoning @aarnphm @chaunceyjiang
+/vllm/tool_parsers @aarnphm @chaunceyjiang
 
 # vLLM V1
-/vllm/v1/attention @LucasWilkinson
+/vllm/v1/attention @LucasWilkinson @MatthewBonanni
 /vllm/v1/attention/backend.py @WoosukKwon @zhuohan123 @youkaichao @alexm-redhat @njhill
 /vllm/v1/attention/backends/mla @pavanimajety
 /vllm/v1/attention/backends/flashinfer.py @mgoin @pavanimajety
 /vllm/v1/attention/backends/triton_attn.py @tdoublep
 /vllm/v1/core @WoosukKwon @robertgshaw2-redhat @njhill @ywang96 @alexm-redhat @heheda12345 @ApostaC @orozery
 /vllm/v1/sample @22quinn @houseroad @njhill
-/vllm/v1/spec_decode @benchislett @luccafong
+/vllm/v1/spec_decode @benchislett @luccafong @MatthewBonanni
 /vllm/v1/structured_output @mgoin @russellb @aarnphm @benchislett
 /vllm/v1/kv_cache_interface.py @heheda12345
 /vllm/v1/kv_offload @ApostaC @orozery
-/vllm/v1/worker/gpu/kv_connector.py @orozery
-/vllm/v1/worker/kv_connector_model_runner_mixin.py @orozery
+/vllm/v1/engine @njhill
+/vllm/v1/executor @njhill
+/vllm/v1/worker @njhill
+/vllm/v1/worker/kv_connector_model_runner_mixin.py @orozery @NickLucche
 
 # Model runner V2
-/vllm/v1/worker/gpu @WoosukKwon
+/vllm/v1/worker/gpu @WoosukKwon @njhill
+/vllm/v1/worker/gpu/kv_connector.py @orozery
 
 # Test ownership
 /.buildkite/lm-eval-harness @mgoin 
@@ -115,8 +136,8 @@ mkdocs.yaml @hmellor
 /vllm/model_executor/models/mixtral*.py @patrickvonplaten
 /vllm/model_executor/models/voxtral*.py @patrickvonplaten
 /vllm/model_executor/models/pixtral*.py @patrickvonplaten
+/vllm/tokenizers/mistral.py @patrickvonplaten
 /vllm/transformers_utils/configs/mistral.py @patrickvonplaten
-/vllm/transformers_utils/tokenizers/mistral.py @patrickvonplaten
 
 # Kernels
 /vllm/v1/attention/ops/chunked_prefill_paged_decode.py @tdoublep
@@ -152,9 +173,7 @@ mkdocs.yaml @hmellor
 /examples/pooling @noooop
 /tests/models/*/pooling* @noooop
 /tests/entrypoints/pooling @noooop
-/vllm/entrypoints/pooling @noooop
 /vllm/config/pooler.py @noooop
-/vllm/pooling_params.py @noooop
 /vllm/model_executor/layers/pooler @noooop
 
 # Security guide and policies

.github/mergify.yml

@@ -259,8 +259,7 @@ pull_request_rules:
       - files=benchmarks/run_structured_output_benchmark.sh
       - files=docs/features/structured_outputs.md
       - files=examples/offline_inference/structured_outputs.py
-      - files=examples/online_serving/openai_chat_completion_structured_outputs.py
-      - files=examples/online_serving/openai_chat_completion_structured_outputs_with_reasoning.py
+      - files=examples/online_serving/structured_outputs/structured_outputs.py
       - files~=^tests/v1/structured_output/
       - files=tests/v1/entrypoints/llm/test_struct_output_generate.py
       - files~=^vllm/v1/structured_output/

.github/workflows/bc-lint.yml

@@ -1,29 +0,0 @@
-name: BC Lint
-
-on:
-  pull_request:
-    types:
-      - opened
-      - synchronize
-      - reopened
-      - labeled
-      - unlabeled
-
-jobs:
-  bc_lint:
-    if: github.repository_owner == 'vllm-project'
-    runs-on: ubuntu-latest
-    steps:
-      - name: Run BC Lint Action
-        uses: pytorch/test-infra/.github/actions/bc-lint@main
-        with:
-          repo: ${{ github.event.pull_request.head.repo.full_name }}
-          base_sha: ${{ github.event.pull_request.base.sha }}
-          head_sha: ${{ github.event.pull_request.head.sha }}
-          suppression: ${{ contains(github.event.pull_request.labels.*.name, 'suppress-bc-linter') }}
-          docs_link: 'https://github.com/pytorch/test-infra/wiki/BC-Linter'
-          config_dir: .github
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.sha }}
-  cancel-in-progress: true

.github/workflows/cleanup_pr_body.yml

@@ -19,6 +19,7 @@ jobs:
         uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: '3.12'
+          cache: 'pip'
 
       - name: Install Python dependencies
         run: |

.gitignore

@@ -3,6 +3,8 @@
 
 # vllm-flash-attn built from source
 vllm/vllm_flash_attn/*
+!vllm/vllm_flash_attn/__init__.py
+!vllm/vllm_flash_attn/flash_attn_interface.py
 
 # OpenAI triton kernels copied from source
 vllm/third_party/triton_kernels/*
@@ -238,3 +240,6 @@ ep_kernels_workspace/
 vllm/grpc/vllm_engine_pb2.py
 vllm/grpc/vllm_engine_pb2_grpc.py
 vllm/grpc/vllm_engine_pb2.pyi
+
+# Ignore generated cpu headers 
+csrc/cpu/cpu_attn_dispatch_generated.h

.pre-commit-config.yaml

@@ -143,6 +143,11 @@ repos:
     name: Check attention backend documentation is up to date
     entry: python tools/pre_commit/generate_attention_backend_docs.py --check
     language: python
+  - id: check-boolean-context-manager
+    name: Check for boolean ops in with-statements
+    entry: python tools/pre_commit/check_boolean_context_manager.py
+    language: python
+    types: [python]
   # Keep `suggestion` last
   - id: suggestion
     name: Suggestion

.readthedocs.yaml

@@ -9,13 +9,14 @@ build:
     python: "3.12"
   jobs:
     post_checkout:
-      - git fetch --unshallow || true
+      - git fetch origin main --unshallow --no-tags --filter=blob:none || true
+    pre_create_environment:
+      - pip install uv
+    create_environment:
+      - uv venv $READTHEDOCS_VIRTUALENV_PATH
+    install:
+      - uv pip install --python $READTHEDOCS_VIRTUALENV_PATH/bin/python --no-cache-dir -r requirements/docs.txt 
 
 mkdocs:
   configuration: mkdocs.yaml
   fail_on_warning: true
-
-# Optionally declare the Python requirements required to build your docs
-python:
-  install:
-    - requirements: requirements/docs.txt

CMakeLists.txt

@@ -293,6 +293,7 @@ set(VLLM_EXT_SRC
   "csrc/fused_qknorm_rope_kernel.cu"
   "csrc/layernorm_quant_kernels.cu"
   "csrc/sampler.cu"
+  "csrc/topk.cu"
   "csrc/cuda_view.cu"
   "csrc/quantization/gptq/q_gemm.cu"
   "csrc/quantization/w8a8/int8/scaled_quant.cu"
@@ -724,7 +725,7 @@ if(VLLM_GPU_LANG STREQUAL "CUDA")
   # CUTLASS MoE kernels
 
   # The MoE kernel cutlass_moe_mm requires CUDA 12.3 or later (and ONLY works
-  # on Hopper). get_cutlass_(pplx_)moe_mm_data should only be compiled
+  # on Hopper). get_cutlass_(batched_)moe_mm_data should only be compiled
   # if it's possible to compile MoE kernels that use its output.
   cuda_archs_loose_intersection(SCALED_MM_ARCHS "9.0a" "${CUDA_ARCHS}")
   if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 12.3 AND SCALED_MM_ARCHS)
@@ -770,6 +771,51 @@ if(VLLM_GPU_LANG STREQUAL "CUDA")
     endif()
   endif()
 
+  # Expert-specialization MXFP8 blockscaled grouped kernels (SM100+).
+  if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 13.0)
+    cuda_archs_loose_intersection(ES_MXFP8_GROUPED_MM_ARCHS "10.0f;11.0f" "${CUDA_ARCHS}")
+  else()
+    cuda_archs_loose_intersection(ES_MXFP8_GROUPED_MM_ARCHS "10.0a;10.1a;10.3a" "${CUDA_ARCHS}")
+  endif()
+  if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 12.8 AND ES_MXFP8_GROUPED_MM_ARCHS)
+    set(SRCS
+      "csrc/moe/mxfp8_moe/cutlass_mxfp8_grouped_mm.cu"
+      "csrc/moe/mxfp8_moe/mxfp8_experts_quant.cu")
+    set_gencode_flags_for_srcs(
+      SRCS "${SRCS}"
+      CUDA_ARCHS "${ES_MXFP8_GROUPED_MM_ARCHS}")
+    list(APPEND VLLM_EXT_SRC "${SRCS}")
+    list(APPEND VLLM_GPU_FLAGS "-DENABLE_ES_MXFP8_GROUPED_MM_SM100=1")
+    message(STATUS "Building ES MXFP8 grouped kernels for archs: ${ES_MXFP8_GROUPED_MM_ARCHS}")
+  else()
+    if (NOT ${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 12.8
+        AND ES_MXFP8_GROUPED_MM_ARCHS)
+      message(STATUS "Not building ES MXFP8 grouped kernels as CUDA Compiler version is "
+                     "not >= 12.8.")
+    else()
+      message(STATUS "Not building ES MXFP8 grouped kernels as no compatible archs found "
+                     "in CUDA target architectures.")
+    endif()
+  endif()
+
+  # DeepSeek V3 fused A GEMM kernel (requires SM 9.0+, Hopper and later)
+  if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 13.0)
+    cuda_archs_loose_intersection(DSV3_FUSED_A_GEMM_ARCHS "9.0a;10.0f;11.0f" "${CUDA_ARCHS}")
+  else()
+    cuda_archs_loose_intersection(DSV3_FUSED_A_GEMM_ARCHS "9.0a;10.0a;10.1a;10.3a" "${CUDA_ARCHS}")
+  endif()
+  if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 12.0 AND DSV3_FUSED_A_GEMM_ARCHS)
+    set(DSV3_FUSED_A_GEMM_SRC "csrc/dsv3_fused_a_gemm.cu")
+    set_gencode_flags_for_srcs(
+      SRCS "${DSV3_FUSED_A_GEMM_SRC}"
+      CUDA_ARCHS "${DSV3_FUSED_A_GEMM_ARCHS}")
+    list(APPEND VLLM_EXT_SRC ${DSV3_FUSED_A_GEMM_SRC})
+    message(STATUS "Building dsv3_fused_a_gemm for archs: ${DSV3_FUSED_A_GEMM_ARCHS}")
+  else()
+    message(STATUS "Not building dsv3_fused_a_gemm as no compatible archs found "
+                   "in CUDA target architectures.")
+  endif()
+
   # moe_data.cu is used by all CUTLASS MoE kernels.
   if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 13.0)
     cuda_archs_loose_intersection(CUTLASS_MOE_DATA_ARCHS "9.0a;10.0f;11.0f;12.0f" "${CUDA_ARCHS}")
@@ -952,7 +998,8 @@ set(VLLM_MOE_EXT_SRC
 if(VLLM_GPU_LANG STREQUAL "CUDA")
   list(APPEND VLLM_MOE_EXT_SRC
     "csrc/moe/moe_wna16.cu"
-    "csrc/moe/grouped_topk_kernels.cu")
+    "csrc/moe/grouped_topk_kernels.cu"
+    "csrc/moe/router_gemm.cu")
 endif()
 
 if(VLLM_GPU_LANG STREQUAL "CUDA")
@@ -1081,6 +1128,27 @@ if(VLLM_GPU_LANG STREQUAL "CUDA")
     message(STATUS "Not building Marlin MOE kernels as no compatible archs found"
                    " in CUDA target architectures")
   endif()
+
+  # DeepSeek V3 router GEMM kernel - requires SM90+
+  if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 13.0)
+    cuda_archs_loose_intersection(DSV3_ROUTER_GEMM_ARCHS "9.0a;10.0f;11.0f" "${CUDA_ARCHS}")
+  else()
+    cuda_archs_loose_intersection(DSV3_ROUTER_GEMM_ARCHS "9.0a;10.0a;10.1a;10.3a" "${CUDA_ARCHS}")
+  endif()
+  if(${CMAKE_CUDA_COMPILER_VERSION} VERSION_GREATER_EQUAL 12.0 AND DSV3_ROUTER_GEMM_ARCHS)
+    set(DSV3_ROUTER_GEMM_SRC
+      "csrc/moe/dsv3_router_gemm_entry.cu"
+      "csrc/moe/dsv3_router_gemm_float_out.cu"
+      "csrc/moe/dsv3_router_gemm_bf16_out.cu")
+    set_gencode_flags_for_srcs(
+      SRCS "${DSV3_ROUTER_GEMM_SRC}"
+      CUDA_ARCHS "${DSV3_ROUTER_GEMM_ARCHS}")
+    list(APPEND VLLM_MOE_EXT_SRC "${DSV3_ROUTER_GEMM_SRC}")
+    message(STATUS "Building DSV3 router GEMM kernel for archs: ${DSV3_ROUTER_GEMM_ARCHS}")
+  else()
+    message(STATUS "Not building DSV3 router GEMM kernel as no compatible archs found"
+                   " (requires SM90+ and CUDA >= 12.0)")
+  endif()
 endif()
 
 message(STATUS "Enabling moe extension.")

benchmarks/attention_benchmarks/__init__.py

@@ -15,7 +15,6 @@ from .common import (
     BenchmarkConfig,
     BenchmarkResult,
     MockLayer,
-    MockModelConfig,
     ResultsFormatter,
     get_attention_scale,
     is_mla_backend,
@@ -36,7 +35,6 @@ __all__ = [
     "ResultsFormatter",
     # Mock objects
     "MockLayer",
-    "MockModelConfig",
     # Utilities
     "setup_mla_dims",
     "get_attention_scale",

benchmarks/attention_benchmarks/batch_spec.py

@@ -229,3 +229,40 @@ def get_batch_stats(requests: list[BatchRequest]) -> dict:
             sum(r.kv_len for r in requests) / len(requests) if requests else 0
         ),
     }
+
+
+def get_batch_type(batch_spec: str, spec_decode_threshold: int = 8) -> str:
+    """
+    Classify a batch spec into a type string.
+
+    Args:
+        batch_spec: Batch specification string (e.g., "q2k", "8q1s1k", "2q2k_8q1s1k")
+        spec_decode_threshold: Max q_len to be considered spec-decode vs extend
+
+    Returns:
+        Type string: "prefill", "decode", "spec-decode", "extend", or "mixed (types...)"
+    """
+    requests = parse_batch_spec(batch_spec)
+
+    # Classify each request
+    types_present = set()
+    for req in requests:
+        if req.is_decode:
+            types_present.add("decode")
+        elif req.is_prefill:
+            types_present.add("prefill")
+        elif req.is_extend:
+            # Distinguish spec-decode (small q_len) from extend (chunked prefill)
+            if req.q_len <= spec_decode_threshold:
+                types_present.add("spec-decode")
+            else:
+                types_present.add("extend")
+
+    if len(types_present) == 1:
+        return types_present.pop()
+    elif len(types_present) > 1:
+        # Sort for consistent output
+        sorted_types = sorted(types_present)
+        return f"mixed ({'+'.join(sorted_types)})"
+    else:
+        return "unknown"

benchmarks/attention_benchmarks/benchmark.py

@@ -43,6 +43,7 @@ from common import (
     ModelParameterSweep,
     ParameterSweep,
     ResultsFormatter,
+    batch_spec_sort_key,
     is_mla_backend,
 )
 
@@ -218,10 +219,13 @@ def run_model_parameter_sweep(
                         by_param_and_spec[key].append(r)
                         break
 
-    # Sort by param value then spec
+    # Sort by param value then spec (batch_size, q_len, kv_len)
     sorted_keys = sorted(
         by_param_and_spec.keys(),
-        key=lambda x: (int(x[0]) if x[0].isdigit() else x[0], x[1]),
+        key=lambda x: (
+            int(x[0]) if x[0].isdigit() else x[0],
+            batch_spec_sort_key(x[1]),
+        ),
     )
 
     current_param_value = None
@@ -330,7 +334,7 @@ def run_parameter_sweep(
                 by_spec[spec] = []
             by_spec[spec].append(r)
 
-    for spec in sorted(by_spec.keys()):
+    for spec in sorted(by_spec.keys(), key=batch_spec_sort_key):
         results = by_spec[spec]
         best = min(results, key=lambda r: r.mean_time)
         console.print(
@@ -496,15 +500,18 @@ def main():
         if "description" in yaml_config:
             console.print(f"[dim]{yaml_config['description']}[/]")
 
-        # Override args with YAML values
-        # (YAML takes precedence unless CLI arg was explicitly set)
-        # Backend(s)
-        if "backend" in yaml_config:
-            args.backend = yaml_config["backend"]
-            args.backends = None
-        elif "backends" in yaml_config:
-            args.backends = yaml_config["backends"]
-            args.backend = None
+        # Override args with YAML values, but CLI args take precedence
+        # Check if CLI provided backends (they would be non-None and not default)
+        cli_backends_provided = args.backends is not None or args.backend is not None
+
+        # Backend(s) - only use YAML if CLI didn't specify
+        if not cli_backends_provided:
+            if "backend" in yaml_config:
+                args.backend = yaml_config["backend"]
+                args.backends = None
+            elif "backends" in yaml_config:
+                args.backends = yaml_config["backends"]
+                args.backend = None
 
         # Check for special modes
         if "mode" in yaml_config:
@@ -544,13 +551,15 @@ def main():
             args.num_kv_heads = model.get("num_kv_heads", args.num_kv_heads)
             args.block_size = model.get("block_size", args.block_size)
 
-        # Benchmark settings
-        if "benchmark" in yaml_config:
-            bench = yaml_config["benchmark"]
-            args.device = bench.get("device", args.device)
-            args.repeats = bench.get("repeats", args.repeats)
-            args.warmup_iters = bench.get("warmup_iters", args.warmup_iters)
-            args.profile_memory = bench.get("profile_memory", args.profile_memory)
+        # Benchmark settings (top-level keys)
+        if "device" in yaml_config:
+            args.device = yaml_config["device"]
+        if "repeats" in yaml_config:
+            args.repeats = yaml_config["repeats"]
+        if "warmup_iters" in yaml_config:
+            args.warmup_iters = yaml_config["warmup_iters"]
+        if "profile_memory" in yaml_config:
+            args.profile_memory = yaml_config["profile_memory"]
 
         # Parameter sweep configuration
         if "parameter_sweep" in yaml_config:

benchmarks/attention_benchmarks/common.py

@@ -10,18 +10,37 @@ from dataclasses import asdict, dataclass
 from pathlib import Path
 from typing import Any
 
-import numpy as np
 import torch
+from batch_spec import get_batch_type, parse_batch_spec
 from rich.console import Console
 from rich.table import Table
 
+
+def batch_spec_sort_key(spec: str) -> tuple[int, int, int]:
+    """
+    Extract sorting key from batch spec: (batch_size, max_q_len, max_kv_len).
+
+    This ensures results are sorted by batch size first, then query length,
+    then sequence length, rather than alphabetically.
+    """
+    try:
+        requests = parse_batch_spec(spec)
+        batch_size = len(requests)
+        max_q_len = max(r.q_len for r in requests) if requests else 0
+        max_kv_len = max(r.kv_len for r in requests) if requests else 0
+        return (batch_size, max_q_len, max_kv_len)
+    except Exception:
+        # Fallback for unparseable specs
+        return (0, 0, 0)
+
+
 # Mock classes for vLLM attention infrastructure
 
 
 class MockHfConfig:
     """Mock HuggingFace config that satisfies vLLM's requirements."""
 
-    def __init__(self, mla_dims: dict):
+    def __init__(self, mla_dims: dict, index_topk: int | None = None):
         self.num_attention_heads = mla_dims["num_q_heads"]
         self.num_key_value_heads = mla_dims["num_kv_heads"]
         self.hidden_size = mla_dims["head_dim"] * mla_dims["num_q_heads"]
@@ -32,6 +51,8 @@ class MockHfConfig:
         self.qk_rope_head_dim = mla_dims["qk_rope_head_dim"]
         self.v_head_dim = mla_dims["v_head_dim"]
         self.qk_head_dim = mla_dims["qk_nope_head_dim"] + mla_dims["qk_rope_head_dim"]
+        if index_topk is not None:
+            self.index_topk = index_topk
 
     def get_text_config(self):
         return self
@@ -40,10 +61,7 @@ class MockHfConfig:
 # Import AttentionLayerBase at module level to avoid circular dependencies
 try:
     from vllm.model_executor.layers.attention_layer_base import AttentionLayerBase
-
-    _HAS_ATTENTION_LAYER_BASE = True
 except ImportError:
-    _HAS_ATTENTION_LAYER_BASE = False
     AttentionLayerBase = object  # Fallback
 
 
@@ -82,6 +100,38 @@ class MockKVBProj:
         return (result,)  # Return as tuple to match ColumnParallelLinear API
 
 
+class MockIndexer:
+    """Mock Indexer for sparse MLA backends.
+
+    Provides topk_indices_buffer that sparse MLA backends use to determine
+    which KV cache slots to attend to for each token.
+    """
+
+    def __init__(
+        self,
+        max_num_tokens: int,
+        topk_tokens: int,
+        device: torch.device,
+    ):
+        self.topk_tokens = topk_tokens
+        self.topk_indices_buffer = torch.zeros(
+            (max_num_tokens, topk_tokens),
+            dtype=torch.int32,
+            device=device,
+        )
+
+    def fill_random_indices(self, num_tokens: int, max_kv_len: int):
+        """Fill topk_indices_buffer with random valid indices for benchmarking."""
+        indices = torch.randint(
+            0,
+            max_kv_len,
+            (num_tokens, self.topk_tokens),
+            dtype=torch.int32,
+            device=self.topk_indices_buffer.device,
+        )
+        self.topk_indices_buffer[:num_tokens] = indices
+
+
 class MockLayer(AttentionLayerBase):
     """Mock attention layer with scale parameters and impl.
 
@@ -113,95 +163,6 @@ class MockLayer(AttentionLayerBase):
         return self._kv_cache_spec
 
 
-class MockModelConfig:
-    """Mock model configuration."""
-
-    def __init__(
-        self,
-        num_q_heads: int,
-        num_kv_heads: int,
-        head_dim: int,
-        dtype: torch.dtype = torch.float16,
-        max_model_len: int = 32768,
-    ):
-        self._n_q = num_q_heads
-        self._n_kv = num_kv_heads
-        self._d = head_dim
-        self.dtype = dtype
-        self.max_model_len = max_model_len
-
-    def get_num_attention_heads(self, _=None) -> int:
-        return self._n_q
-
-    def get_num_kv_heads(self, _=None) -> int:
-        return self._n_kv
-
-    def get_head_size(self) -> int:
-        return self._d
-
-    def get_num_layers(self) -> int:
-        """Mock method for layer count queries."""
-        return 1
-
-    def get_sliding_window_for_layer(self, _layer_idx: int):
-        """Mock method for sliding window queries."""
-        return None
-
-    def get_logits_soft_cap_for_layer(self, _layer_idx: int):
-        """Mock method for logits soft cap queries."""
-        return None
-
-    def get_sm_scale_for_layer(self, _layer_idx: int) -> float:
-        """Mock method for SM scale queries."""
-        return 1.0 / (self.get_head_size() ** 0.5)
-
-
-class MockParallelConfig:
-    """Mock parallel configuration."""
-
-    pass
-
-
-class MockCompilationConfig:
-    """Mock compilation configuration."""
-
-    def __init__(self):
-        self.full_cuda_graph = False
-        self.static_forward_context = {}
-
-
-class MockVLLMConfig:
-    """Mock VLLM configuration."""
-
-    def __init__(self):
-        self.compilation_config = MockCompilationConfig()
-
-
-class MockRunner:
-    """Mock GPU runner for metadata builders."""
-
-    def __init__(
-        self,
-        seq_lens: np.ndarray,
-        query_start_locs: np.ndarray,
-        device: torch.device,
-        num_q_heads: int,
-        num_kv_heads: int,
-        head_dim: int,
-        dtype: torch.dtype,
-    ):
-        self.model_config = MockModelConfig(num_q_heads, num_kv_heads, head_dim, dtype)
-        self.parallel_config = MockParallelConfig()
-        self.vllm_config = MockVLLMConfig()
-        self.seq_lens_np = seq_lens
-        self.query_start_loc_np = query_start_locs
-        self.device = device
-        self.attention_chunk_size = None
-        self.num_query_heads = num_q_heads
-        self.num_kv_heads = num_kv_heads
-        self.dtype = dtype
-
-
 @dataclass
 class ParameterSweep:
     """Configuration for sweeping a backend parameter."""
@@ -316,14 +277,19 @@ class ResultsFormatter:
             backends: List of backend names being compared
             compare_to_fastest: Show percentage comparison to fastest
         """
-        # Group by batch spec
+        # Group by batch spec, preserving first-occurrence order
         by_spec = {}
+        specs_order = []
         for r in results:
             spec = r.config.batch_spec
             if spec not in by_spec:
                 by_spec[spec] = {}
+                specs_order.append(spec)
             by_spec[spec][r.config.backend] = r
 
+        # Sort specs by (batch_size, q_len, kv_len) instead of alphabetically
+        specs_order = sorted(by_spec.keys(), key=batch_spec_sort_key)
+
         # Create shortened backend names for display
         def shorten_backend_name(name: str) -> str:
             """Shorten long backend names for table display."""
@@ -337,6 +303,8 @@ class ResultsFormatter:
 
         table = Table(title="Attention Benchmark Results")
         table.add_column("Batch\nSpec", no_wrap=True)
+        table.add_column("Type", no_wrap=True)
+        table.add_column("Batch\nSize", justify="right", no_wrap=True)
 
         multi = len(backends) > 1
         for backend in backends:
@@ -350,12 +318,14 @@ class ResultsFormatter:
                 table.add_column(col_rel, justify="right", no_wrap=False)
 
         # Add rows
-        for spec in sorted(by_spec.keys()):
+        for spec in specs_order:
             spec_results = by_spec[spec]
             times = {b: r.mean_time for b, r in spec_results.items() if r.success}
             best_time = min(times.values()) if times else 0.0
 
-            row = [spec]
+            batch_type = get_batch_type(spec)
+            batch_size = len(parse_batch_spec(spec))
+            row = [spec, batch_type, str(batch_size)]
             for backend in backends:
                 if backend in spec_results:
                     r = spec_results[backend]
@@ -486,10 +456,11 @@ def get_attention_scale(head_dim: int) -> float:
 
 def is_mla_backend(backend: str) -> bool:
     """
-    Check if backend is an MLA backend using the backend's is_mla() property.
+    Check if backend is an MLA backend using the AttentionBackendEnum.
 
     Args:
-        backend: Backend name (e.g., "CUTLASS_MLA", "FLASHINFER_MLA")
+        backend: Backend name matching AttentionBackendEnum exactly
+        (e.g., "FLASHMLA_SPARSE")
 
     Returns:
         True if the backend is an MLA backend, False otherwise
@@ -497,7 +468,8 @@ def is_mla_backend(backend: str) -> bool:
     from vllm.v1.attention.backends.registry import AttentionBackendEnum
 
     try:
-        backend_class = AttentionBackendEnum[backend.upper()].get_class()
+        backend_enum = AttentionBackendEnum[backend]
+        backend_class = backend_enum.get_class()
         return backend_class.is_mla()
-    except (KeyError, ValueError, ImportError):
+    except (KeyError, ValueError, ImportError, AttributeError):
         return False

benchmarks/attention_benchmarks/configs/mla_decode.yaml

@@ -3,7 +3,7 @@
 model:
   name: "deepseek-v3"
   num_layers: 60
-  num_q_heads: 128
+  num_q_heads: 128  # Base value, can be swept for TP simulation
   num_kv_heads: 1  # MLA uses single latent KV
   head_dim: 576
   kv_lora_rank: 512
@@ -12,6 +12,13 @@ model:
   v_head_dim: 128
   block_size: 128  # CUTLASS MLA and FlashAttn MLA use 128
 
+# Model parameter sweep: simulate tensor parallelism by varying num_q_heads
+# TP=1: 128 heads, TP=2: 64 heads, TP=4: 32 heads, TP=8: 16 heads
+model_parameter_sweep:
+  param_name: "num_q_heads"
+  values: [128, 64, 32, 16]
+  label_format: "{backend}_{value}h"
+
 batch_specs:
   # Small batches, varying sequence lengths
   - "16q1s512"     # 16 requests, 512 KV cache
@@ -34,28 +41,30 @@ batch_specs:
   # Very large batches
   - "128q1s1k"     # 128 requests, 1k KV cache
   - "128q1s2k"     # 128 requests, 2k KV cache
+  - "128q1s4k"     # 128 requests, 4k KV cache
+  - "128q1s8k"     # 128 requests, 8k KV cache
 
   # Long context
   - "32q1s16k"     # 32 requests, 16k KV cache
   - "32q1s32k"     # 32 requests, 32k KV cache
 
 backends:
-  - cutlass_mla
-  - flashinfer_mla
-  - flashattn_mla  # Hopper only
-  - flashmla        # Hopper only
+  - CUTLASS_MLA
+  - FLASHINFER_MLA
+  - FLASH_ATTN_MLA  # Hopper only
+  - FLASHMLA        # Hopper only
 
 device: "cuda:0"
-repeats: 5
-warmup_iters: 3
+repeats: 100
+warmup_iters: 10
 profile_memory: true
 
 # Backend-specific tuning
-cutlass_mla:
+CUTLASS_MLA:
   num_kv_splits: auto  # or specific value like 4, 8, 16
 
-flashattn_mla:
+FLASH_ATTN_MLA:
   reorder_batch_threshold: 512
 
-flashmla:
+FLASHMLA:
   reorder_batch_threshold: 1

benchmarks/attention_benchmarks/configs/mla_mixed_batch.yaml

@@ -45,10 +45,10 @@ batch_specs:
   - "4q4k_60q1s4k"          # 4 prefill + 60 decode
 
 backends:
-  - cutlass_mla
-  - flashinfer_mla
-  - flashattn_mla   # Hopper only
-  - flashmla        # Hopper only
+  - CUTLASS_MLA
+  - FLASHINFER_MLA
+  - FLASH_ATTN_MLA   # Hopper only
+  - FLASHMLA         # Hopper only
 
 device: "cuda:0"
 repeats: 5

benchmarks/attention_benchmarks/configs/mla_prefill.yaml

@@ -0,0 +1,62 @@
+# MLA prefill-only benchmark configuration for sparse backends
+
+model:
+  name: "deepseek-v3"
+  num_layers: 60
+  num_q_heads: 128
+  num_kv_heads: 1
+  head_dim: 576
+  kv_lora_rank: 512
+  qk_nope_head_dim: 128
+  qk_rope_head_dim: 64
+  v_head_dim: 128
+  block_size: 128
+
+# Model parameter sweep: simulate tensor parallelism by varying num_q_heads
+# TP=1: 128 heads, TP=2: 64 heads, TP=4: 32 heads, TP=8: 16 heads
+model_parameter_sweep:
+  param_name: "num_q_heads"
+  values: [128, 64, 32, 16]
+  label_format: "{backend}_{value}h"
+
+batch_specs:
+  # Pure prefill
+  - "1q512"
+  - "1q1k"
+  - "1q2k"
+  - "1q4k"
+  - "1q8k"
+
+  # Batched pure prefill
+  - "2q512"
+  - "2q1k"
+  - "2q2k"
+  - "2q4k"
+  - "2q8k"
+  - "4q512"
+  - "4q1k"
+  - "4q2k"
+  - "4q4k"
+  - "4q8k"
+  - "8q512"
+  - "8q1k"
+  - "8q2k"
+  - "8q4k"
+  - "8q8k"
+
+  # Extend
+  - "1q512s4k"
+  - "1q512s8k"
+  - "1q1ks8k"
+  - "1q2ks8k"
+  - "1q2ks16k"
+  - "1q4ks16k"
+
+backends:
+  - FLASHMLA_SPARSE
+  - FLASHINFER_MLA_SPARSE
+
+device: "cuda:0"
+repeats: 10
+warmup_iters: 3
+profile_memory: true

benchmarks/attention_benchmarks/configs/reorder_threshold.yaml

@@ -6,7 +6,7 @@
 description: "Decode vs Prefill pipeline crossover analysis"
 
 # Test FlashAttn MLA
-backend: flashattn_mla
+backend: FLASH_ATTN_MLA
 
 # Mode: decode_vs_prefill comparison (special sweep mode)
 # For each batch spec, we'll test both decode and prefill pipelines
@@ -62,11 +62,10 @@ model:
   block_size: 128
 
 # Benchmark settings
-benchmark:
-  device: "cuda:0"
-  repeats: 15          # More repeats for spec decode variance
-  warmup_iters: 5
-  profile_memory: false
+device: "cuda:0"
+repeats: 15          # More repeats for spec decode variance
+warmup_iters: 5
+profile_memory: false
 
 # Output
 output:

benchmarks/attention_benchmarks/configs/speculative_decode.yaml

@@ -41,18 +41,17 @@ batch_specs:
 
 # Backends that support query length > 1
 backends:
-  - flashattn_mla    # reorder_batch_threshold = 512
-  - flashmla          # reorder_batch_threshold = 1 (tunable)
+  - FLASH_ATTN_MLA    # reorder_batch_threshold = 512
+  - FLASHMLA          # reorder_batch_threshold = 1 (tunable)
 
 # FlashInfer-MLA also supports uniform spec-as-decode but with different mechanism
-# - flashinfer_mla
+# - FLASHINFER_MLA
 
 # Benchmark settings
-benchmark:
-  device: "cuda:0"
-  repeats: 10  # More repeats for statistical significance
-  warmup_iters: 5
-  profile_memory: false
+device: "cuda:0"
+repeats: 10  # More repeats for statistical significance
+warmup_iters: 5
+profile_memory: false
 
 # Test these threshold values for optimization
 parameter_sweep:

benchmarks/attention_benchmarks/configs/standard_attention.yaml

@@ -25,14 +25,22 @@ batch_specs:
   - "4q1k_16q1s2k"     # 4 prefill + 16 decode
   - "2q4k_32q1s1k"     # 2 large prefill + 32 decode
 
-  # Context extension
-  - "q1ks2k"          # 1k query, 2k sequence (chunked prefill)
+  # Speculative decode (q <= 8)
+  - "16q2s1k"         # 16 requests, 2 spec tokens, 1k KV cache
+  - "16q4s1k"         # 16 requests, 4 spec tokens, 1k KV cache
+  - "16q8s1k"         # 16 requests, 8 spec tokens, 1k KV cache
+  - "32q4s2k"         # 32 requests, 4 spec tokens, 2k KV cache
+  - "8q8s4k"          # 8 requests, 8 spec tokens, 4k KV cache
+
+  # Context extension (chunked prefill)
+  - "q1ks2k"          # 1k query, 2k sequence
   - "2q1ks4k"         # 2 requests: 1k query, 4k sequence
 
+# Available backends: FLASH_ATTN, TRITON_ATTN, FLASHINFER
 backends:
-  - flash
-  - triton
-  - flashinfer
+  - FLASH_ATTN
+  - TRITON_ATTN
+  - FLASHINFER
 
 device: "cuda:0"
 repeats: 5

benchmarks/attention_benchmarks/mla_runner.py

@@ -8,14 +8,13 @@ This module provides helpers for running MLA backends without
 needing full VllmConfig integration.
 """
 
-import importlib
-
 import numpy as np
 import torch
 from batch_spec import parse_batch_spec
 from common import (
     BenchmarkResult,
     MockHfConfig,
+    MockIndexer,
     MockKVBProj,
     MockLayer,
     setup_mla_dims,
@@ -62,6 +61,7 @@ def create_minimal_vllm_config(
     block_size: int = 128,
     max_num_seqs: int = 256,
     mla_dims: dict | None = None,
+    index_topk: int | None = None,
 ) -> VllmConfig:
     """
     Create minimal VllmConfig for MLA benchmarks.
@@ -73,6 +73,8 @@ def create_minimal_vllm_config(
         max_num_seqs: Maximum number of sequences
         mla_dims: Optional custom MLA dimensions dict. If not provided, uses
                   setup_mla_dims(model_name)
+        index_topk: Optional topk value for sparse MLA backends. If provided,
+                    the config will include index_topk for sparse attention.
 
     Returns:
         VllmConfig for benchmarking
@@ -82,7 +84,7 @@ def create_minimal_vllm_config(
         mla_dims = setup_mla_dims(model_name)
 
     # Create mock HF config first (avoids downloading from HuggingFace)
-    mock_hf_config = MockHfConfig(mla_dims)
+    mock_hf_config = MockHfConfig(mla_dims, index_topk=index_topk)
 
     # Create a temporary minimal config.json to avoid HF downloads
     # This ensures consistent ModelConfig construction without network access
@@ -120,16 +122,12 @@ def create_minimal_vllm_config(
             seed=0,
             max_model_len=32768,
             quantization=None,
-            quantization_param_path=None,
             enforce_eager=False,
-            max_context_len_to_capture=None,
-            max_seq_len_to_capture=8192,
             max_logprobs=20,
             disable_sliding_window=False,
             skip_tokenizer_init=True,
             served_model_name=None,
             limit_mm_per_prompt=None,
-            use_async_output_proc=True,
             config_format="auto",
         )
     finally:
@@ -180,56 +178,65 @@ def create_minimal_vllm_config(
 # ============================================================================
 
 
-# Backend name to class name prefix mapping
-_BACKEND_NAME_MAP = {
-    "flashattn_mla": "FlashAttnMLA",
-    "flashmla": "FlashMLA",
-    "flashinfer_mla": "FlashInferMLA",
-    "cutlass_mla": "CutlassMLA",
-}
-
-# Special properties that differ from defaults
+# Backend-specific properties that can't be inferred from the backend class
+# Keys are AttentionBackendEnum names (uppercase)
 _BACKEND_PROPERTIES = {
-    "flashmla": {
+    "FLASHMLA": {
         "query_format": "concat",  # Single concatenated tensor (vs tuple)
-        "block_size": 64,  # FlashMLA uses fixed block size
     },
-    "flashinfer_mla": {
-        "block_size": 64,  # FlashInfer MLA only supports 32 or 64
+    "FLASHMLA_SPARSE": {
+        "query_format": "concat",  # Single concatenated tensor (vs tuple)
     },
 }
 
 
 def _get_backend_config(backend: str) -> dict:
     """
-    Get backend configuration using naming conventions.
+    Get backend configuration from AttentionBackendEnum.
 
-    All MLA backends follow the pattern:
-    - Module: vllm.v1.attention.backends.mla.{backend}
-    - Impl: {Name}Impl
-    - Metadata: {Name}Metadata (or MLACommonMetadata)
-    - DecodeMetadata: {Name}DecodeMetadata (or MLACommonDecodeMetadata)
-    - MetadataBuilder: {Name}MetadataBuilder
+    Uses the registry to get the backend class and extract configuration
+    from its methods (get_impl_cls, get_builder_cls, is_sparse, etc.).
+
+    Args:
+        backend: Backend name matching AttentionBackendEnum exactly
+        (e.g., "FLASHMLA_SPARSE")
+
+    Returns:
+        Dict with backend configuration
     """
-    if backend not in _BACKEND_NAME_MAP:
-        raise ValueError(f"Unknown backend: {backend}")
+    from vllm.v1.attention.backends.registry import AttentionBackendEnum
 
-    name = _BACKEND_NAME_MAP[backend]
+    try:
+        backend_enum = AttentionBackendEnum[backend]
+        backend_class = backend_enum.get_class()
+    except (KeyError, ValueError) as e:
+        valid_backends = [e.name for e in AttentionBackendEnum if e.name != "CUSTOM"]
+        raise ValueError(
+            f"Unknown backend: {backend}. "
+            f"Valid MLA backends: {[b for b in valid_backends if 'MLA' in b]}"
+        ) from e
+
+    # Get block size from backend class
+    block_sizes = backend_class.get_supported_kernel_block_sizes()
+    # Use first supported block size (backends typically support one for MLA)
+    block_size = block_sizes[0] if block_sizes else None
+    if hasattr(block_size, "value"):
+        # Handle MultipleOf enum
+        block_size = None
+
+    # Check if sparse via class method if available
+    is_sparse = getattr(backend_class, "is_sparse", lambda: False)()
+
+    # Get properties that can't be inferred
     props = _BACKEND_PROPERTIES.get(backend, {})
 
-    # Check if backend uses common metadata (FlashInfer, CUTLASS)
-    uses_common = backend in ("flashinfer_mla", "cutlass_mla")
-
     return {
-        "module": f"vllm.v1.attention.backends.mla.{backend}",
-        "impl_class": f"{name}Impl",
-        "metadata_class": "MLACommonMetadata" if uses_common else f"{name}Metadata",
-        "decode_metadata_class": "MLACommonDecodeMetadata"
-        if uses_common
-        else f"{name}DecodeMetadata",
-        "builder_class": f"{name}MetadataBuilder",
+        "backend_class": backend_class,
+        "impl_class": backend_class.get_impl_cls(),
+        "builder_class": backend_class.get_builder_cls(),
         "query_format": props.get("query_format", "tuple"),
-        "block_size": props.get("block_size", None),
+        "block_size": block_size,
+        "is_sparse": is_sparse,
     }
 
 
@@ -447,22 +454,26 @@ def _create_backend_impl(
     mla_dims: dict,
     vllm_config: VllmConfig,
     device: torch.device,
+    max_num_tokens: int = 8192,
+    index_topk: int | None = None,
 ):
     """
     Create backend implementation instance.
 
     Args:
-        backend_cfg: Backend configuration dict
+        backend_cfg: Backend configuration dict from _get_backend_config()
         mla_dims: MLA dimension configuration
         vllm_config: VllmConfig instance
         device: Target device
+        max_num_tokens: Maximum number of tokens for sparse indexer buffer
+        index_topk: Topk value for sparse MLA backends
 
     Returns:
-        Tuple of (impl, layer, builder_instance)
+        Tuple of (impl, layer, builder_instance, indexer)
     """
-    # Import backend classes
-    backend_module = importlib.import_module(backend_cfg["module"])
-    impl_class = getattr(backend_module, backend_cfg["impl_class"])
+    # Get classes from backend config (already resolved by _get_backend_config)
+    impl_class = backend_cfg["impl_class"]
+    builder_class = backend_cfg["builder_class"]
 
     # Calculate scale
     scale = 1.0 / np.sqrt(mla_dims["qk_nope_head_dim"] + mla_dims["qk_rope_head_dim"])
@@ -474,26 +485,44 @@ def _create_backend_impl(
         v_head_dim=mla_dims["v_head_dim"],
     )
 
+    # Create indexer for sparse backends
+    indexer = None
+    if backend_cfg.get("is_sparse", False):
+        if index_topk is None:
+            index_topk = 2048  # Default topk for sparse MLA
+        indexer = MockIndexer(
+            max_num_tokens=max_num_tokens,
+            topk_tokens=index_topk,
+            device=device,
+        )
+
+    # Build impl kwargs
+    impl_kwargs = {
+        "num_heads": mla_dims["num_q_heads"],
+        "head_size": mla_dims["head_dim"],
+        "scale": scale,
+        "num_kv_heads": mla_dims["num_kv_heads"],
+        "alibi_slopes": None,
+        "sliding_window": None,
+        "kv_cache_dtype": "auto",
+        "logits_soft_cap": None,
+        "attn_type": "decoder",
+        "kv_sharing_target_layer_name": None,
+        "q_lora_rank": None,
+        "kv_lora_rank": mla_dims["kv_lora_rank"],
+        "qk_nope_head_dim": mla_dims["qk_nope_head_dim"],
+        "qk_rope_head_dim": mla_dims["qk_rope_head_dim"],
+        "qk_head_dim": mla_dims["qk_nope_head_dim"] + mla_dims["qk_rope_head_dim"],
+        "v_head_dim": mla_dims["v_head_dim"],
+        "kv_b_proj": mock_kv_b_proj,
+    }
+
+    # Add indexer for sparse backends
+    if indexer is not None:
+        impl_kwargs["indexer"] = indexer
+
     # Create impl
-    impl = impl_class(
-        num_heads=mla_dims["num_q_heads"],
-        head_size=mla_dims["head_dim"],
-        scale=scale,
-        num_kv_heads=mla_dims["num_kv_heads"],
-        alibi_slopes=None,
-        sliding_window=None,
-        kv_cache_dtype="auto",
-        logits_soft_cap=None,
-        attn_type="decoder",
-        kv_sharing_target_layer_name=None,
-        q_lora_rank=None,
-        kv_lora_rank=mla_dims["kv_lora_rank"],
-        qk_nope_head_dim=mla_dims["qk_nope_head_dim"],
-        qk_rope_head_dim=mla_dims["qk_rope_head_dim"],
-        qk_head_dim=mla_dims["qk_nope_head_dim"] + mla_dims["qk_rope_head_dim"],
-        v_head_dim=mla_dims["v_head_dim"],
-        kv_b_proj=mock_kv_b_proj,
-    )
+    impl = impl_class(**impl_kwargs)
 
     # Initialize DCP attributes
     if not hasattr(impl, "dcp_world_size") or impl.dcp_world_size in (None, -1):
@@ -515,9 +544,7 @@ def _create_backend_impl(
 
     # Create builder instance if needed
     builder_instance = None
-    if backend_cfg["builder_class"]:
-        builder_class = getattr(backend_module, backend_cfg["builder_class"])
-
+    if builder_class:
         # Populate static_forward_context so builder can find the layer
         # MockLayer inherits from AttentionLayerBase, so isinstance checks pass
         vllm_config.compilation_config.static_forward_context = {"placeholder": layer}
@@ -529,7 +556,7 @@ def _create_backend_impl(
             device=device,
         )
 
-    return impl, layer, builder_instance
+    return impl, layer, builder_instance, indexer
 
 
 # ============================================================================
@@ -594,6 +621,7 @@ def _run_single_benchmark(
     backend_cfg: dict,
     mla_dims: dict,
     device: torch.device,
+    indexer=None,
 ) -> BenchmarkResult:
     """
     Run a single benchmark iteration.
@@ -606,6 +634,7 @@ def _run_single_benchmark(
         backend_cfg: Backend configuration dict
         mla_dims: MLA dimension configuration
         device: Target device
+        indexer: Optional MockIndexer for sparse backends
 
     Returns:
         BenchmarkResult with timing statistics
@@ -613,7 +642,9 @@ def _run_single_benchmark(
     # Parse batch spec
     requests = parse_batch_spec(config.batch_spec)
     q_lens = [r.q_len for r in requests]
+    kv_lens = [r.kv_len for r in requests]
     total_q = sum(q_lens)
+    max_kv_len = max(kv_lens)
 
     # Determine block size
     block_size = backend_cfg["block_size"] or config.block_size
@@ -641,8 +672,16 @@ def _run_single_benchmark(
         torch.bfloat16,
     )
 
-    # Determine which forward method to use based on metadata
-    if metadata.decode is not None:
+    # Fill indexer with random indices for sparse backends
+    is_sparse = backend_cfg.get("is_sparse", False)
+    if is_sparse and indexer is not None:
+        indexer.fill_random_indices(total_q, max_kv_len)
+
+    # Determine which forward method to use
+    if is_sparse:
+        # Sparse backends use forward_mqa
+        forward_fn = lambda: impl.forward_mqa(decode_inputs, kv_cache, metadata, layer)
+    elif metadata.decode is not None:
         forward_fn = lambda: impl._forward_decode(
             decode_inputs, kv_cache, metadata, layer
         )
@@ -693,11 +732,13 @@ def _run_single_benchmark(
 def _run_mla_benchmark_batched(
     backend: str,
     configs_with_params: list[tuple],  # [(config, threshold, num_splits), ...]
+    index_topk: int = 2048,
 ) -> list[BenchmarkResult]:
     """
     Unified batched MLA benchmark runner for all backends.
 
-    Works for: flashattn_mla, flashmla, flashinfer_mla, cutlass_mla
+    Works for: flashattn_mla, flashmla, flashinfer_mla, cutlass_mla,
+               flashinfer_mla_sparse, flashmla_sparse
 
     This function reuses backend initialization across multiple benchmarks
     to avoid setup/teardown overhead.
@@ -707,6 +748,7 @@ def _run_mla_benchmark_batched(
         configs_with_params: List of (config, threshold, num_splits) tuples
             - threshold: reorder_batch_threshold (FlashAttn/FlashMLA only)
             - num_splits: num_kv_splits (CUTLASS only)
+        index_topk: Topk value for sparse MLA backends (default 2048)
 
     Returns:
         List of BenchmarkResult objects
@@ -730,19 +772,27 @@ def _run_mla_benchmark_batched(
     if mla_dims is None:
         mla_dims = setup_mla_dims("deepseek-v3")
 
+    # Determine if this is a sparse backend
+    is_sparse = backend_cfg.get("is_sparse", False)
+
     # Create and set vLLM config for MLA (reused across all benchmarks)
     vllm_config = create_minimal_vllm_config(
         model_name="deepseek-v3",  # Used only for model path
         block_size=block_size,
         mla_dims=mla_dims,  # Use custom dims from config or default
+        index_topk=index_topk if is_sparse else None,
     )
 
     results = []
 
     with set_current_vllm_config(vllm_config):
-        # Create backend impl, layer, and builder (reused across benchmarks)
-        impl, layer, builder_instance = _create_backend_impl(
-            backend_cfg, mla_dims, vllm_config, device
+        # Create backend impl, layer, builder, and indexer (reused across benchmarks)
+        impl, layer, builder_instance, indexer = _create_backend_impl(
+            backend_cfg,
+            mla_dims,
+            vllm_config,
+            device,
+            index_topk=index_topk if is_sparse else None,
         )
 
         # Run each benchmark with the shared impl
@@ -768,6 +818,7 @@ def _run_mla_benchmark_batched(
                     backend_cfg,
                     mla_dims,
                     device,
+                    indexer=indexer,
                 )
                 results.append(result)
 
@@ -793,20 +844,24 @@ def run_mla_benchmark(
     config,
     reorder_batch_threshold: int | None = None,
     num_kv_splits: int | None = None,
+    index_topk: int = 2048,
 ) -> BenchmarkResult | list[BenchmarkResult]:
     """
     Unified MLA benchmark runner for all backends.
 
-    Works for: flashattn_mla, flashmla, flashinfer_mla, cutlass_mla
+    Works for: flashattn_mla, flashmla, flashinfer_mla, cutlass_mla,
+               flashinfer_mla_sparse, flashmla_sparse
 
     Always uses batched execution internally for optimal performance.
 
     Args:
-        backend: Backend name (flashattn_mla, flashmla, flashinfer_mla, cutlass_mla)
+        backend: Backend name (flashattn_mla, flashmla, flashinfer_mla, cutlass_mla,
+                 flashinfer_mla_sparse, flashmla_sparse)
         config: BenchmarkConfig or list of (BenchmarkConfig, param) tuples
         reorder_batch_threshold: Threshold override for FlashAttn/FlashMLA
                                  (single config mode only)
         num_kv_splits: Number of KV splits for CUTLASS (single config mode only)
+        index_topk: Topk value for sparse MLA backends (default 2048)
 
     Returns:
         BenchmarkResult (single mode) or list of BenchmarkResult (batched mode)
@@ -816,9 +871,9 @@ def run_mla_benchmark(
         # Already in batched format
         if len(config) > 0 and isinstance(config[0], tuple):
             # Format: [(cfg, param), ...] where param is threshold or num_splits
-            if backend in ("flashattn_mla", "flashmla"):
+            if backend in ("flashattn_mla", "flashmla", "flashmla_sparse"):
                 configs_with_params = [(cfg, param, None) for cfg, param in config]
-            else:  # cutlass_mla or flashinfer_mla
+            else:  # cutlass_mla, flashinfer_mla, or sparse backends
                 configs_with_params = [(cfg, None, param) for cfg, param in config]
         else:
             # Format: [cfg, ...] - just configs
@@ -830,7 +885,7 @@ def run_mla_benchmark(
         return_single = True
 
     # Use unified batched execution
-    results = _run_mla_benchmark_batched(backend, configs_with_params)
+    results = _run_mla_benchmark_batched(backend, configs_with_params, index_topk)
 
     # Return single result or list based on input
     return results[0] if return_single else results

benchmarks/attention_benchmarks/runner.py

@@ -8,7 +8,9 @@ This module provides helpers for running standard attention backends
 (FlashAttention, Triton, FlashInfer) with real vLLM integration.
 """
 
+import logging
 import types
+from contextlib import contextmanager
 
 import numpy as np
 import torch
@@ -24,8 +26,13 @@ from vllm.config import (
     ParallelConfig,
     SchedulerConfig,
     VllmConfig,
+    set_current_vllm_config,
+)
+from vllm.v1.attention.backends.utils import (
+    CommonAttentionMetadata,
+    get_kv_cache_layout,
+    set_kv_cache_layout,
 )
-from vllm.v1.attention.backends.utils import CommonAttentionMetadata
 from vllm.v1.kv_cache_interface import FullAttentionSpec
 
 # ============================================================================
@@ -33,37 +40,41 @@ from vllm.v1.kv_cache_interface import FullAttentionSpec
 # ============================================================================
 
 
-_BACKEND_CONFIG = {
-    "flash": {
-        "module": "vllm.v1.attention.backends.flash_attn",
-        "backend_class": "FlashAttentionBackend",
-        "dtype": torch.float16,
-        "cache_layout": "standard",
-        # ^ [2, num_blocks, block_size, num_kv_heads, head_dim]
-    },
-    "triton": {
-        "module": "vllm.v1.attention.backends.triton_attn",
-        "backend_class": "TritonAttentionBackend",
-        "dtype": torch.float32,
-        "cache_layout": "standard",
-    },
-    "flashinfer": {
-        "module": "vllm.v1.attention.backends.flashinfer",
-        "backend_class": "FlashInferBackend",
-        "dtype": torch.float16,
-        "cache_layout": "flashinfer",
-        # ^ [num_blocks, 2, block_size, num_kv_heads, head_dim]
-    },
-}
-
-
 def _get_backend_config(backend: str) -> dict:
-    if backend not in _BACKEND_CONFIG:
+    """
+    Get backend configuration from AttentionBackendEnum.
+
+    Args:
+        backend: Backend name matching AttentionBackendEnum exactly
+                 (e.g., "FLASH_ATTN", "TRITON_ATTN", "FLASHINFER")
+
+    Returns:
+        Dict with backend_class
+    """
+    from vllm.v1.attention.backends.registry import AttentionBackendEnum
+
+    try:
+        backend_enum = AttentionBackendEnum[backend]
+        backend_class = backend_enum.get_class()
+    except (KeyError, ValueError) as e:
+        valid_backends = [b.name for b in AttentionBackendEnum if b.name != "CUSTOM"]
         raise ValueError(
-            f"Unknown backend: {backend}. "
-            f"Available: {', '.join(_BACKEND_CONFIG.keys())}"
-        )
-    return _BACKEND_CONFIG[backend]
+            f"Unknown backend: {backend}. Valid backends: {valid_backends}"
+        ) from e
+
+    return {"backend_class": backend_class}
+
+
+@contextmanager
+def log_warnings_and_errors_only():
+    """Temporarily set vLLM logger to WARNING level."""
+    logger = logging.getLogger("vllm")
+    old_level = logger.level
+    logger.setLevel(logging.WARNING)
+    try:
+        yield
+    finally:
+        logger.setLevel(old_level)
 
 
 # ============================================================================
@@ -88,11 +99,7 @@ def _build_common_attn_metadata(
     query_start_loc_cpu = query_start_loc.cpu()
 
     seq_lens = torch.tensor(kv_lens, dtype=torch.int32, device=device)
-    seq_lens_cpu = seq_lens.cpu()
-    max_seq_len = int(seq_lens_cpu.max())
-
-    context_lens = [kv - q for kv, q in zip(kv_lens, q_lens)]
-    num_computed_tokens_cpu = torch.tensor(context_lens, dtype=torch.int32)
+    max_seq_len = int(seq_lens.max().item())
 
     max_blocks = (max(kv_lens) + block_size - 1) // block_size
     num_blocks = batch_size * max_blocks
@@ -107,8 +114,6 @@ def _build_common_attn_metadata(
         query_start_loc=query_start_loc,
         query_start_loc_cpu=query_start_loc_cpu,
         seq_lens=seq_lens,
-        seq_lens_cpu=seq_lens_cpu,
-        num_computed_tokens_cpu=num_computed_tokens_cpu,
         num_reqs=batch_size,
         num_actual_tokens=total_tokens,
         max_query_len=max_query_len,
@@ -121,7 +126,6 @@ def _build_common_attn_metadata(
 
 def _create_vllm_config(
     config: BenchmarkConfig,
-    dtype: torch.dtype,
     max_num_blocks: int,
 ) -> VllmConfig:
     """Create a VllmConfig for benchmarking with mock model methods."""
@@ -129,7 +133,7 @@ def _create_vllm_config(
         model="meta-llama/Meta-Llama-3-8B",
         tokenizer="meta-llama/Meta-Llama-3-8B",
         trust_remote_code=False,
-        dtype=dtype,
+        dtype="auto",  # Use model's native dtype
         seed=0,
         max_model_len=1024,
     )
@@ -198,15 +202,12 @@ def _create_backend_impl(
     backend_cfg: dict,
     config: BenchmarkConfig,
     device: torch.device,
+    dtype: torch.dtype,
 ):
     """Create backend implementation instance."""
-    import importlib
-
-    backend_module = importlib.import_module(backend_cfg["module"])
-    backend_class = getattr(backend_module, backend_cfg["backend_class"])
+    backend_class = backend_cfg["backend_class"]
 
     scale = get_attention_scale(config.head_dim)
-    dtype = backend_cfg["dtype"]
 
     impl = backend_class.get_impl_cls()(
         num_heads=config.num_q_heads,
@@ -227,7 +228,7 @@ def _create_backend_impl(
 
     layer = MockLayer(device, kv_cache_spec=kv_cache_spec)
 
-    return backend_class, impl, layer, dtype
+    return backend_class, impl, layer
 
 
 def _create_metadata_builder(
@@ -235,11 +236,44 @@ def _create_metadata_builder(
     kv_cache_spec: FullAttentionSpec,
     vllm_config: VllmConfig,
     device: torch.device,
+    backend_name: str = "",
 ):
     """Create metadata builder instance."""
-    return backend_class.get_builder_cls()(
+    layer_names = ["layer_0"]
+    builder_cls = backend_class.get_builder_cls()
+
+    # Flashinfer needs get_per_layer_parameters mocked since we don't have
+    # real model layers registered
+    if backend_name == "FLASHINFER":
+        import unittest.mock
+
+        from vllm.v1.attention.backends.utils import PerLayerParameters
+
+        def mock_get_per_layer_parameters(vllm_config, layer_names, impl_cls):
+            head_size = vllm_config.model_config.get_head_size()
+            return {
+                layer_name: PerLayerParameters(
+                    window_left=-1,  # No sliding window
+                    logits_soft_cap=0.0,  # No soft cap
+                    sm_scale=1.0 / (head_size**0.5),  # Standard scale
+                )
+                for layer_name in layer_names
+            }
+
+        with unittest.mock.patch(
+            "vllm.v1.attention.backends.flashinfer.get_per_layer_parameters",
+            mock_get_per_layer_parameters,
+        ):
+            return builder_cls(
+                kv_cache_spec=kv_cache_spec,
+                layer_names=layer_names,
+                vllm_config=vllm_config,
+                device=device,
+            )
+
+    return builder_cls(
         kv_cache_spec=kv_cache_spec,
-        layer_names=["layer_0"],
+        layer_names=layer_names,
         vllm_config=vllm_config,
         device=device,
     )
@@ -281,39 +315,44 @@ def _create_input_tensors(
 def _create_kv_cache(
     config: BenchmarkConfig,
     max_num_blocks: int,
-    cache_layout: str,
+    backend_class,
     device: torch.device,
     dtype: torch.dtype,
 ) -> list:
-    """Create KV cache tensors for all layers."""
-    if cache_layout == "flashinfer":
-        # FlashInfer layout: [num_blocks, 2, block_size, num_kv_heads, head_dim]
-        cache_list = [
-            torch.zeros(
-                max_num_blocks,
-                2,
-                config.block_size,
-                config.num_kv_heads,
-                config.head_dim,
-                device=device,
-                dtype=dtype,
-            )
-            for _ in range(config.num_layers)
-        ]
-    else:
-        # Standard layout: [2, num_blocks, block_size, num_kv_heads, head_dim]
-        cache_list = [
-            torch.zeros(
-                2,
-                max_num_blocks,
-                config.block_size,
-                config.num_kv_heads,
-                config.head_dim,
-                device=device,
-                dtype=dtype,
-            )
-            for _ in range(config.num_layers)
-        ]
+    """Create KV cache tensors for all layers using the backend's methods.
+
+    Uses the backend's get_kv_cache_shape() and get_kv_cache_stride_order()
+    to create the cache with the correct shape and memory layout.
+    """
+    # Get the logical shape from the backend
+    cache_shape = backend_class.get_kv_cache_shape(
+        num_blocks=max_num_blocks,
+        block_size=config.block_size,
+        num_kv_heads=config.num_kv_heads,
+        head_size=config.head_dim,
+    )
+
+    # Get the stride order for custom memory layout
+    try:
+        stride_order = backend_class.get_kv_cache_stride_order()
+        assert len(stride_order) == len(cache_shape)
+    except (AttributeError, NotImplementedError):
+        stride_order = tuple(range(len(cache_shape)))
+
+    # Permute shape to physical layout order
+    physical_shape = tuple(cache_shape[i] for i in stride_order)
+
+    # Compute inverse permutation to get back to logical view
+    inv_order = [stride_order.index(i) for i in range(len(stride_order))]
+
+    cache_list = []
+    for _ in range(config.num_layers):
+        # Allocate in physical layout order (contiguous in memory)
+        cache = torch.zeros(*physical_shape, device=device, dtype=dtype)
+        # Permute to logical view
+        cache = cache.permute(*inv_order)
+        cache_list.append(cache)
+
     return cache_list
 
 
@@ -396,7 +435,7 @@ def run_attention_benchmark(config: BenchmarkConfig) -> BenchmarkResult:
     """
     Run standard attention benchmark with real kernels.
 
-    Supports: flash, triton, flashinfer
+    Supports: FLASH_ATTN, TRITON_ATTN, FLASHINFER
 
     Args:
         config: Benchmark configuration
@@ -411,60 +450,79 @@ def run_attention_benchmark(config: BenchmarkConfig) -> BenchmarkResult:
 
     requests = parse_batch_spec(config.batch_spec)
 
-    if config.backend == "flashinfer":
+    if config.backend == "FLASHINFER":
         requests = reorder_for_flashinfer(requests)
 
     q_lens = [r.q_len for r in requests]
     kv_lens = [r.kv_len for r in requests]
     total_q = sum(q_lens)
     max_kv = max(kv_lens)
+    batch_size = len(q_lens)
 
-    max_num_blocks = (max_kv + config.block_size - 1) // config.block_size
+    # Calculate total blocks needed: batch_size * max_blocks_per_request
+    max_blocks_per_request = (max_kv + config.block_size - 1) // config.block_size
+    max_num_blocks = batch_size * max_blocks_per_request
 
-    backend_class, impl, layer, dtype = _create_backend_impl(
-        backend_cfg, config, device
-    )
+    # Suppress vLLM logs during setup to reduce spam
+    with log_warnings_and_errors_only():
+        # Create vllm_config first - uses model's native dtype via "auto"
+        vllm_config = _create_vllm_config(config, max_num_blocks)
+        dtype = vllm_config.model_config.dtype
 
-    common_metadata = _build_common_attn_metadata(
-        q_lens, kv_lens, config.block_size, device
-    )
+        # Wrap everything in set_current_vllm_config context
+        # This is required for backends like flashinfer that need global config
+        with set_current_vllm_config(vllm_config):
+            backend_class, impl, layer = _create_backend_impl(
+                backend_cfg, config, device, dtype
+            )
 
-    kv_cache_spec = FullAttentionSpec(
-        block_size=config.block_size,
-        num_kv_heads=config.num_kv_heads,
-        head_size=config.head_dim,
-        dtype=dtype,
-    )
+            # Set KV cache layout if the backend requires a specific one
+            # (e.g., FlashInfer requires HND on SM100/Blackwell for TRTLLM attention)
+            required_layout = backend_class.get_required_kv_cache_layout()
+            if required_layout is not None:
+                set_kv_cache_layout(required_layout)
+                get_kv_cache_layout.cache_clear()
 
-    vllm_config = _create_vllm_config(config, dtype, max_num_blocks)
+            common_metadata = _build_common_attn_metadata(
+                q_lens, kv_lens, config.block_size, device
+            )
 
-    builder = _create_metadata_builder(
-        backend_class, kv_cache_spec, vllm_config, device
-    )
+            kv_cache_spec = FullAttentionSpec(
+                block_size=config.block_size,
+                num_kv_heads=config.num_kv_heads,
+                head_size=config.head_dim,
+                dtype=dtype,
+            )
 
-    attn_metadata = builder.build(
-        common_prefix_len=0,
-        common_attn_metadata=common_metadata,
-    )
+            builder = _create_metadata_builder(
+                backend_class, kv_cache_spec, vllm_config, device, config.backend
+            )
 
-    q_list, k_list, v_list = _create_input_tensors(config, total_q, device, dtype)
+            attn_metadata = builder.build(
+                common_prefix_len=0,
+                common_attn_metadata=common_metadata,
+            )
 
-    cache_list = _create_kv_cache(
-        config, max_num_blocks, backend_cfg["cache_layout"], device, dtype
-    )
+            q_list, k_list, v_list = _create_input_tensors(
+                config, total_q, device, dtype
+            )
 
-    times, mem_stats = _run_single_benchmark(
-        config,
-        impl,
-        layer,
-        q_list,
-        k_list,
-        v_list,
-        cache_list,
-        attn_metadata,
-        device,
-        dtype,
-    )
+            cache_list = _create_kv_cache(
+                config, max_num_blocks, backend_class, device, dtype
+            )
+
+            times, mem_stats = _run_single_benchmark(
+                config,
+                impl,
+                layer,
+                q_list,
+                k_list,
+                v_list,
+                cache_list,
+                attn_metadata,
+                device,
+                dtype,
+            )
 
     mean_time = np.mean(times)
     throughput = total_q / mean_time if mean_time > 0 else 0

benchmarks/auto_tune/auto_tune.sh

@@ -46,10 +46,10 @@ echo "VLLM_LOGGING_LEVEL=$VLLM_LOGGING_LEVEL"
 echo "RESULT_FILE=$RESULT"
 echo "====================== AUTO TUNEPARAMETERS ===================="
 
-rm -rf $LOG_FOLDER
-rm -rf $PROFILE_PATH
-mkdir -p $LOG_FOLDER
-mkdir -p $PROFILE_PATH
+rm -rf "$LOG_FOLDER"
+rm -rf "$PROFILE_PATH"
+mkdir -p "$LOG_FOLDER"
+mkdir -p "$PROFILE_PATH"
 
 cd "$BASE/vllm"
 
@@ -85,7 +85,6 @@ start_server() {
     # Each argument and its value are separate elements.
     local common_args_array=(
         "$MODEL"
-        "--disable-log-requests"
         "--port" "8004"
         "--host" "$HOSTNAME"
         "--gpu-memory-utilization" "$gpu_memory_utilization"
@@ -114,7 +113,7 @@ start_server() {
 
     # wait for 10 minutes...
     server_started=0
-    for i in {1..60}; do
+    for _ in {1..60}; do
         # This line checks whether the server is still alive or not,
         # since that we should always have permission to send signal to the server process.
         kill -0 $server_pid 2> /dev/null || break
@@ -145,12 +144,12 @@ run_benchmark() {
     local vllm_log="$LOG_FOLDER/vllm_log_${max_num_seqs}_${max_num_batched_tokens}.txt"
     echo "vllm_log: $vllm_log"
     echo
-    rm -f $vllm_log
+    rm -f "$vllm_log"
     pkill -if "vllm serve" || true
 
     echo "starting server..."
     # Call start_server without a profile_dir to avoid profiling overhead
-    start_server $gpu_memory_utilization $max_num_seqs $max_num_batched_tokens $vllm_log ""
+    start_server "$gpu_memory_utilization" "$max_num_seqs" "$max_num_batched_tokens" "$vllm_log" ""
     result=$?
     if [[ "$result" -eq 1 ]]; then
         echo "server failed to start. gpu_memory_utilization:$gpu_memory_utilization, max_num_seqs:$max_num_seqs, max_num_batched_tokens: $max_num_batched_tokens"
@@ -168,15 +167,15 @@ run_benchmark() {
     # --profile flag is removed from this call
     vllm bench serve \
         --backend vllm \
-        --model $MODEL  \
+        --model "$MODEL"  \
         --dataset-name random \
         --random-input-len $adjusted_input_len \
-        --random-output-len $OUTPUT_LEN \
+        --random-output-len "$OUTPUT_LEN" \
         --ignore-eos \
         --disable-tqdm \
         --request-rate inf \
         --percentile-metrics ttft,tpot,itl,e2el \
-        --goodput e2el:$MAX_LATENCY_ALLOWED_MS \
+        --goodput e2el:"$MAX_LATENCY_ALLOWED_MS" \
         --num-prompts 1000 \
         --random-prefix-len $prefix_len \
         --host "$HOSTNAME" \
@@ -195,20 +194,20 @@ run_benchmark() {
         request_rate=$((${throughput%.*} + 1))
         while ((request_rate > 0)); do
             # clear prefix cache
-            curl -X POST http://${HOSTNAME}:8004/reset_prefix_cache
+            curl -X POST http://"${HOSTNAME}":8004/reset_prefix_cache
             sleep 5
             bm_log="$LOG_FOLDER/bm_log_${max_num_seqs}_${max_num_batched_tokens}_requestrate_${request_rate}.txt"
             vllm bench serve \
                 --backend vllm \
-                --model $MODEL  \
+                --model "$MODEL"  \
                 --dataset-name random \
                 --random-input-len $adjusted_input_len \
-                --random-output-len $OUTPUT_LEN \
+                --random-output-len "$OUTPUT_LEN" \
                 --ignore-eos \
                 --disable-tqdm \
                 --request-rate $request_rate \
                 --percentile-metrics ttft,tpot,itl,e2el \
-                --goodput e2el:$MAX_LATENCY_ALLOWED_MS \
+                --goodput e2el:"$MAX_LATENCY_ALLOWED_MS" \
                 --num-prompts 100 \
                 --random-prefix-len $prefix_len \
                 --host "$HOSTNAME" \
@@ -255,7 +254,7 @@ gpu_memory_utilization=0.98
 find_gpu_memory_utilization=0
 while (( $(echo "$gpu_memory_utilization >= 0.9" | bc -l) )); do
     # Pass empty string for profile_dir argument
-    start_server $gpu_memory_utilization "${num_seqs_list[-1]}" "${num_batched_tokens_list[-1]}" "$LOG_FOLDER/vllm_log_gpu_memory_utilization_$gpu_memory_utilization.log" ""
+    start_server "$gpu_memory_utilization" "${num_seqs_list[-1]}" "${num_batched_tokens_list[-1]}" "$LOG_FOLDER/vllm_log_gpu_memory_utilization_$gpu_memory_utilization.log" ""
     result=$?
     if [[ "$result" -eq 0 ]]; then
         find_gpu_memory_utilization=1
@@ -274,7 +273,7 @@ fi
 
 for num_seqs in "${num_seqs_list[@]}"; do
     for num_batched_tokens in "${num_batched_tokens_list[@]}"; do
-        run_benchmark $num_seqs $num_batched_tokens $gpu_memory_utilization
+        run_benchmark "$num_seqs" "$num_batched_tokens" "$gpu_memory_utilization"
     done
 done
 echo "finish permutations"
@@ -285,7 +284,7 @@ echo "finish permutations"
 if (( $(echo "$best_throughput > 0" | bc -l) )); then
     echo
     echo "Benchmark tuning finished. Now running profiling on the best configuration found..."
-    echo "Best config: max_num_seqs: $best_max_num_seqs, max_num_batched_tokens: $best_num_batched_tokens, throughput: $best_throughput"
+    echo "Best config: max_num_seqs: $best_max_num_seqs, max_num_batched_tokens: $best_num_batched_tokens, throughput: $best_throughput, goodput: $best_goodput"
     echo
 
     vllm_log="$LOG_FOLDER/vllm_log_BEST_PROFILE.txt"
@@ -293,7 +292,7 @@ if (( $(echo "$best_throughput > 0" | bc -l) )); then
 
     # Start server with the best params and profiling ENABLED
     echo "Starting server for profiling..."
-    start_server $gpu_memory_utilization $best_max_num_seqs $best_num_batched_tokens "$vllm_log" "$PROFILE_PATH"
+    start_server "$gpu_memory_utilization" "$best_max_num_seqs" "$best_num_batched_tokens" "$vllm_log" "$PROFILE_PATH"
 
     # Run benchmark with the best params and the --profile flag
     echo "Running benchmark with profiling..."
@@ -301,15 +300,15 @@ if (( $(echo "$best_throughput > 0" | bc -l) )); then
     adjusted_input_len=$(( INPUT_LEN - prefix_len ))
     vllm bench serve \
         --backend vllm \
-        --model $MODEL \
+        --model "$MODEL" \
         --dataset-name random \
         --random-input-len $adjusted_input_len \
-        --random-output-len $OUTPUT_LEN \
+        --random-output-len "$OUTPUT_LEN" \
         --ignore-eos \
         --disable-tqdm \
-        --request-rate $best_request_rate \
+        --request-rate "$best_request_rate" \
         --percentile-metrics ttft,tpot,itl,e2el \
-        --goodput e2el:$MAX_LATENCY_ALLOWED_MS \
+        --goodput e2el:"$MAX_LATENCY_ALLOWED_MS" \
         --num-prompts 100 \
         --random-prefix-len $prefix_len \
         --host "$HOSTNAME" \

benchmarks/auto_tune/batch_auto_tune.sh

@@ -64,7 +64,7 @@ for i in $(seq 0 $(($num_runs - 1))); do
   else
     STATUS="FAILURE"
     ((FAILURE_COUNT++))
-    FAILED_RUNS+=("Run #$((i+1)): $(echo $run_object | jq -c .)")
+    FAILED_RUNS+=("Run #$((i+1)): $(echo "$run_object" | jq -c .)")
   fi
 
   RUN_OUTPUT=$(<"$RUN_OUTPUT_FILE")

benchmarks/backend_request_func.py

@@ -649,9 +649,3 @@ ASYNC_REQUEST_FUNCS = {
     "sglang": async_request_openai_completions,
     "llama.cpp": async_request_openai_completions,
 }
-
-OPENAI_COMPATIBLE_BACKENDS = [
-    k
-    for k, v in ASYNC_REQUEST_FUNCS.items()
-    if v in (async_request_openai_completions, async_request_openai_chat_completions)
-]

benchmarks/benchmark_topk_topp.py

@@ -0,0 +1,471 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: Apache-2.0
+# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
+"""
+Benchmark comparing Triton vs PyTorch sort-based top-k/top-p implementations.
+
+Compares:
+- apply_top_k_top_p_triton (Triton binary search)
+- apply_top_k_top_p (PyTorch sort-based)
+
+Scenarios:
+- top_k only (whole batch, partial batch)
+- top_p only (whole batch, partial batch)
+- mix of top_k and top_p
+"""
+
+import argparse
+import gc
+from dataclasses import dataclass
+
+import torch
+
+from vllm.v1.sample.ops.topk_topp_sampler import apply_top_k_top_p_pytorch
+from vllm.v1.sample.ops.topk_topp_triton import (
+    apply_top_k_top_p_triton,
+    reset_buffer_cache,
+)
+
+
+@dataclass
+class BenchmarkConfig:
+    """Configuration for a benchmark run."""
+
+    name: str
+    batch_size: int
+    vocab_size: int
+    # k and p can be tensors or None
+    k_values: torch.Tensor | None  # [batch_size] or None
+    p_values: torch.Tensor | None  # [batch_size] or None
+    description: str
+    ops_pct: float = 0.0  # Percentage of ops relative to batch size
+
+
+def calculate_ops_pct(
+    k_values: torch.Tensor | None,
+    p_values: torch.Tensor | None,
+    vocab_size: int,
+    batch_size: int,
+) -> float:
+    """
+    Calculate the percentage of active top-k and top-p operations.
+
+    Returns percentage where 100% = batch_size ops.
+    E.g., if all rows have both top-k and top-p active, returns 200%.
+    """
+    active_ops = 0
+
+    if k_values is not None:
+        # Count rows where k < vocab_size (active top-k filtering)
+        active_ops += (k_values < vocab_size).sum().item()
+
+    if p_values is not None:
+        # Count rows where p < 1.0 (active top-p filtering)
+        active_ops += (p_values < 1.0).sum().item()
+
+    return (active_ops / batch_size) * 100 if batch_size > 0 else 0.0
+
+
+def create_logits(
+    batch_size: int, vocab_size: int, device: str = "cuda"
+) -> torch.Tensor:
+    """Create random logits mimicking a realistic LLM distribution.
+
+    Uses a Zipf-like probability distribution (rank^-1.1) converted to logits
+    via log, then randomly permuted per row. This produces a peaked distribution
+    where a small number of tokens capture most probability mass, similar to
+    real model outputs.
+    """
+    # Create Zipf-like probabilities: p(rank) ~ rank^(-alpha)
+    ranks = torch.arange(1, vocab_size + 1, dtype=torch.float32, device=device)
+    probs = ranks.pow(-1.1)
+    probs = probs / probs.sum()
+
+    # Convert to logits (log-probabilities, unnormalized is fine)
+    base_logits = probs.log()
+
+    # Broadcast to batch and randomly permute each row
+    logits = base_logits.unsqueeze(0).expand(batch_size, -1).clone()
+    for i in range(batch_size):
+        logits[i] = logits[i, torch.randperm(vocab_size, device=device)]
+
+    return logits
+
+
+def measure_memory() -> tuple[int, int]:
+    """Return (allocated, reserved) memory in bytes."""
+    torch.cuda.synchronize()
+    return torch.cuda.memory_allocated(), torch.cuda.max_memory_allocated()
+
+
+def reset_memory_stats():
+    """Reset peak memory statistics."""
+    reset_buffer_cache()
+    torch.cuda.reset_peak_memory_stats()
+    torch.cuda.empty_cache()
+    gc.collect()
+
+
+def benchmark_function(
+    func,
+    logits: torch.Tensor,
+    k: torch.Tensor | None,
+    p: torch.Tensor | None,
+    warmup_iters: int = 5,
+    benchmark_iters: int = 20,
+) -> tuple[float, int]:
+    """
+    Benchmark a function and return (avg_time_ms, peak_memory_bytes).
+
+    Returns average time in milliseconds and peak memory usage.
+    """
+    # Warmup
+    for _ in range(warmup_iters):
+        logits_copy = logits.clone()
+        func(logits_copy, k, p)
+    torch.cuda.synchronize()
+
+    # Reset memory stats before benchmark
+    reset_memory_stats()
+
+    # Benchmark
+    start_events = [
+        torch.cuda.Event(enable_timing=True) for _ in range(benchmark_iters)
+    ]
+    end_events = [torch.cuda.Event(enable_timing=True) for _ in range(benchmark_iters)]
+
+    for i in range(benchmark_iters):
+        logits_copy = logits.clone()
+        start_events[i].record()
+        func(logits_copy, k, p)
+        end_events[i].record()
+
+    torch.cuda.synchronize()
+
+    # Calculate timing
+    times = [
+        start_events[i].elapsed_time(end_events[i]) for i in range(benchmark_iters)
+    ]
+    avg_time = sum(times) / len(times)
+
+    # Get peak memory
+    _, peak_memory = measure_memory()
+
+    return avg_time, peak_memory
+
+
+def create_benchmark_configs(
+    batch_sizes: list[int],
+    vocab_sizes: list[int],
+    device: str = "cuda",
+) -> list[BenchmarkConfig]:
+    """Create all benchmark configurations."""
+    configs = []
+
+    for vocab_size in vocab_sizes:
+        for batch_size in batch_sizes:
+            # 1. Top-k only - whole batch (all rows have k < vocab_size)
+            k_all = torch.full((batch_size,), 50, dtype=torch.int32, device=device)
+            configs.append(
+                BenchmarkConfig(
+                    name=f"topk_whole_b{batch_size}_v{vocab_size // 1000}k",
+                    batch_size=batch_size,
+                    vocab_size=vocab_size,
+                    k_values=k_all,
+                    p_values=None,
+                    description=f"Top-k only (whole batch, k=50), "
+                    f"batch={batch_size}, vocab={vocab_size}",
+                    ops_pct=calculate_ops_pct(k_all, None, vocab_size, batch_size),
+                )
+            )
+
+            # 2. Top-k only - partial batch (half have k=50, half have k=vocab_size)
+            k_partial = torch.full((batch_size,), 50, dtype=torch.int32, device=device)
+            k_partial[batch_size // 2 :] = vocab_size  # No filtering for second half
+            configs.append(
+                BenchmarkConfig(
+                    name=f"topk_partial_b{batch_size}_v{vocab_size // 1000}k",
+                    batch_size=batch_size,
+                    vocab_size=vocab_size,
+                    k_values=k_partial,
+                    p_values=None,
+                    description=f"Top-k only (partial batch, 50% k=50, 50% k=vocab), "
+                    f"batch={batch_size}, vocab={vocab_size}",
+                    ops_pct=calculate_ops_pct(k_partial, None, vocab_size, batch_size),
+                )
+            )
+
+            # 3. Top-p only - whole batch (all rows have p < 1.0)
+            p_all = torch.full((batch_size,), 0.9, dtype=torch.float32, device=device)
+            configs.append(
+                BenchmarkConfig(
+                    name=f"topp_whole_b{batch_size}_v{vocab_size // 1000}k",
+                    batch_size=batch_size,
+                    vocab_size=vocab_size,
+                    k_values=None,
+                    p_values=p_all,
+                    description=f"Top-p only (whole batch, p=0.9), "
+                    f"batch={batch_size}, vocab={vocab_size}",
+                    ops_pct=calculate_ops_pct(None, p_all, vocab_size, batch_size),
+                )
+            )
+
+            # 4. Top-p only - partial batch (half have p=0.9, half have p=1.0)
+            p_partial = torch.full(
+                (batch_size,), 0.9, dtype=torch.float32, device=device
+            )
+            p_partial[batch_size // 2 :] = 1.0  # No filtering for second half
+            configs.append(
+                BenchmarkConfig(
+                    name=f"topp_partial_b{batch_size}_v{vocab_size // 1000}k",
+                    batch_size=batch_size,
+                    vocab_size=vocab_size,
+                    k_values=None,
+                    p_values=p_partial,
+                    description=f"Top-p only (partial batch, 50% p=0.9, 50% p=1.0), "
+                    f"batch={batch_size}, vocab={vocab_size}",
+                    ops_pct=calculate_ops_pct(None, p_partial, vocab_size, batch_size),
+                )
+            )
+
+            # 5. Mix of top-k and top-p (both applied to whole batch)
+            k_mix = torch.full((batch_size,), 100, dtype=torch.int32, device=device)
+            p_mix = torch.full((batch_size,), 0.9, dtype=torch.float32, device=device)
+            configs.append(
+                BenchmarkConfig(
+                    name=f"topk_topp_whole_b{batch_size}_v{vocab_size // 1000}k",
+                    batch_size=batch_size,
+                    vocab_size=vocab_size,
+                    k_values=k_mix,
+                    p_values=p_mix,
+                    description=f"Top-k + Top-p (whole batch, k=100, p=0.9), "
+                    f"batch={batch_size}, vocab={vocab_size}",
+                    ops_pct=calculate_ops_pct(k_mix, p_mix, vocab_size, batch_size),
+                )
+            )
+
+            # 6. Mix with partial application (some rows k only, some p only, some both)
+            k_mixed = torch.full(
+                (batch_size,), vocab_size, dtype=torch.int32, device=device
+            )
+            p_mixed = torch.full((batch_size,), 1.0, dtype=torch.float32, device=device)
+            # First third: k only
+            third = batch_size // 3
+            k_mixed[:third] = 50
+            # Second third: p only
+            p_mixed[third : 2 * third] = 0.5
+            # Last third: both k and p
+            k_mixed[2 * third :] = 100
+            p_mixed[2 * third :] = 0.9
+            configs.append(
+                BenchmarkConfig(
+                    name=f"mixed_partial_b{batch_size}_v{vocab_size // 1000}k",
+                    batch_size=batch_size,
+                    vocab_size=vocab_size,
+                    k_values=k_mixed,
+                    p_values=p_mixed,
+                    description=f"Mixed partial (1/3 k=50, 1/3 p=0.9, 1/3 both), "
+                    f"batch={batch_size}, vocab={vocab_size}",
+                    ops_pct=calculate_ops_pct(k_mixed, p_mixed, vocab_size, batch_size),
+                )
+            )
+
+    return configs
+
+
+def format_memory(bytes_val: int) -> str:
+    """Format memory in human-readable form."""
+    if bytes_val >= 1024**3:
+        return f"{bytes_val / (1024**3):.2f} GB"
+    elif bytes_val >= 1024**2:
+        return f"{bytes_val / (1024**2):.2f} MB"
+    elif bytes_val >= 1024:
+        return f"{bytes_val / 1024:.2f} KB"
+    return f"{bytes_val} B"
+
+
+def run_benchmark(
+    configs: list[BenchmarkConfig],
+    warmup_iters: int = 5,
+    benchmark_iters: int = 20,
+    verbose: bool = True,
+):
+    """Run all benchmarks and print results."""
+    results = []
+
+    print("=" * 100)
+    print("Top-k/Top-p Benchmark: Triton vs PyTorch Sort-based")
+    print("=" * 100)
+    print()
+
+    for config in configs:
+        if verbose:
+            print(f"Running: {config.description}")
+
+        # Create fresh logits for this config
+        logits = create_logits(config.batch_size, config.vocab_size)
+
+        # Benchmark Triton
+        reset_memory_stats()
+        triton_time, triton_mem = benchmark_function(
+            apply_top_k_top_p_triton,
+            logits,
+            config.k_values,
+            config.p_values,
+            warmup_iters,
+            benchmark_iters,
+        )
+
+        # Benchmark PyTorch
+        reset_memory_stats()
+        pytorch_time, pytorch_mem = benchmark_function(
+            apply_top_k_top_p_pytorch,
+            logits,
+            config.k_values,
+            config.p_values,
+            warmup_iters,
+            benchmark_iters,
+        )
+
+        speedup = pytorch_time / triton_time if triton_time > 0 else float("inf")
+        mem_ratio = pytorch_mem / triton_mem if triton_mem > 0 else float("inf")
+
+        result = {
+            "config": config,
+            "triton_time_ms": triton_time,
+            "pytorch_time_ms": pytorch_time,
+            "triton_mem": triton_mem,
+            "pytorch_mem": pytorch_mem,
+            "speedup": speedup,
+            "mem_ratio": mem_ratio,
+        }
+        results.append(result)
+
+        if verbose:
+            print(f"  Triton:  {triton_time:.3f} ms, {format_memory(triton_mem)}")
+            print(f"  PyTorch: {pytorch_time:.3f} ms, {format_memory(pytorch_mem)}")
+            print(f"  Speedup: {speedup:.2f}x, Memory ratio: {mem_ratio:.2f}x")
+            print()
+
+        # Clean up
+        del logits
+        reset_memory_stats()
+
+    return results
+
+
+def print_summary_table(results: list[dict]):
+    """Print a summary table of results."""
+    print()
+    print("=" * 130)
+    print("SUMMARY TABLE")
+    print("=" * 130)
+    print()
+
+    # Header
+    header = (
+        f"{'Scenario':<40} {'Batch':>6} {'Vocab':>7} {'Ops%':>6} "
+        f"{'Triton (ms)':>12} {'PyTorch (ms)':>13} {'Speedup':>8} "
+        f"{'Tri Mem':>10} {'Pyt Mem':>10}"
+    )
+    print(header)
+    print("-" * 130)
+
+    # Group by scenario type
+    current_vocab = None
+    for result in results:
+        config = result["config"]
+
+        # Add separator between vocab sizes
+        if current_vocab != config.vocab_size:
+            if current_vocab is not None:
+                print("-" * 130)
+            current_vocab = config.vocab_size
+
+        scenario = config.name.split("_b")[0]  # Extract scenario name
+        print(
+            f"{scenario:<40} {config.batch_size:>6} {config.vocab_size:>7} "
+            f"{config.ops_pct:>5.0f}% "
+            f"{result['triton_time_ms']:>12.3f} {result['pytorch_time_ms']:>13.3f} "
+            f"{result['speedup']:>7.2f}x "
+            f"{format_memory(result['triton_mem']):>10} "
+            f"{format_memory(result['pytorch_mem']):>10}"
+        )
+
+    print("=" * 130)
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description="Benchmark Triton vs PyTorch sort-based top-k/top-p implementations"
+    )
+    parser.add_argument(
+        "--batch-sizes",
+        type=int,
+        nargs="+",
+        default=[1, 4, 16, 64, 128, 512, 1024, 2048],
+        help="Batch sizes to test (default: 1 4 16 64)",
+    )
+    parser.add_argument(
+        "--vocab-sizes",
+        type=int,
+        nargs="+",
+        default=[32768, 131072],  # 32k, 128k
+        help="Vocabulary sizes to test (default: 32768 131072)",
+    )
+    parser.add_argument(
+        "--warmup-iters",
+        type=int,
+        default=5,
+        help="Number of warmup iterations (default: 5)",
+    )
+    parser.add_argument(
+        "--benchmark-iters",
+        type=int,
+        default=20,
+        help="Number of benchmark iterations (default: 20)",
+    )
+    parser.add_argument(
+        "--quiet",
+        action="store_true",
+        help="Only print summary table",
+    )
+
+    args = parser.parse_args()
+
+    # Print configuration
+    print(f"Batch sizes: {args.batch_sizes}")
+    print(f"Vocab sizes: {args.vocab_sizes}")
+    print(f"Warmup iterations: {args.warmup_iters}")
+    print(f"Benchmark iterations: {args.benchmark_iters}")
+    print()
+
+    # Check CUDA
+    if not torch.cuda.is_available():
+        print("ERROR: CUDA is not available. This benchmark requires a GPU.")
+        return
+
+    device_name = torch.cuda.get_device_name(0)
+    print(f"GPU: {device_name}")
+    print()
+
+    # Create configs
+    configs = create_benchmark_configs(
+        args.batch_sizes,
+        args.vocab_sizes,
+    )
+
+    # Run benchmarks
+    results = run_benchmark(
+        configs,
+        warmup_iters=args.warmup_iters,
+        benchmark_iters=args.benchmark_iters,
+        verbose=not args.quiet,
+    )
+
+    # Print summary
+    print_summary_table(results)
+
+
+if __name__ == "__main__":
+    main()

benchmarks/benchmark_utils.py

@@ -1,78 +1,7 @@
 # SPDX-License-Identifier: Apache-2.0
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
-import argparse
-import json
-import math
-import os
 import time
 from types import TracebackType
-from typing import Any
-
-
-def convert_to_pytorch_benchmark_format(
-    args: argparse.Namespace, metrics: dict[str, list], extra_info: dict[str, Any]
-) -> list:
-    """
-    Save the benchmark results in the format used by PyTorch OSS benchmark with
-    on metric per record
-    https://github.com/pytorch/pytorch/wiki/How-to-integrate-with-PyTorch-OSS-benchmark-database
-    """
-    records = []
-    if not os.environ.get("SAVE_TO_PYTORCH_BENCHMARK_FORMAT", False):
-        return records
-
-    for name, benchmark_values in metrics.items():
-        record = {
-            "benchmark": {
-                "name": "vLLM benchmark",
-                "extra_info": {
-                    "args": vars(args),
-                },
-            },
-            "model": {
-                "name": args.model,
-            },
-            "metric": {
-                "name": name,
-                "benchmark_values": benchmark_values,
-                "extra_info": extra_info,
-            },
-        }
-
-        tp = record["benchmark"]["extra_info"]["args"].get("tensor_parallel_size")
-        # Save tensor_parallel_size parameter if it's part of the metadata
-        if not tp and "tensor_parallel_size" in extra_info:
-            record["benchmark"]["extra_info"]["args"]["tensor_parallel_size"] = (
-                extra_info["tensor_parallel_size"]
-            )
-
-        records.append(record)
-
-    return records
-
-
-class InfEncoder(json.JSONEncoder):
-    def clear_inf(self, o: Any):
-        if isinstance(o, dict):
-            return {k: self.clear_inf(v) for k, v in o.items()}
-        elif isinstance(o, list):
-            return [self.clear_inf(v) for v in o]
-        elif isinstance(o, float) and math.isinf(o):
-            return "inf"
-        return o
-
-    def iterencode(self, o: Any, *args, **kwargs) -> Any:
-        return super().iterencode(self.clear_inf(o), *args, **kwargs)
-
-
-def write_to_json(filename: str, records: list) -> None:
-    with open(filename, "w") as f:
-        json.dump(
-            records,
-            f,
-            cls=InfEncoder,
-            default=lambda o: f"<{type(o).__name__} object is not JSON serializable>",
-        )
 
 
 # Collect time and generate time metrics

benchmarks/cutlass_benchmarks/utils.py

@@ -2,7 +2,6 @@
 # SPDX-FileCopyrightText: Copyright contributors to the vLLM project
 
 # Cutlass bench utils
-from collections.abc import Iterable
 
 import torch
 
@@ -86,15 +85,3 @@ def make_rand_sparse_tensors(
 
     # Compressed B, Metadata, Original A, B
     return b_compressed, e, a, b
-
-
-def make_n_rand_sparse_tensors(
-    num_tensors: int, dtype: torch.dtype, m: int, n: int, k: int
-) -> tuple[Iterable[torch.Tensor], Iterable[torch.Tensor]]:
-    ABs = []
-    for _ in range(num_tensors):
-        b_comp, e, a, b = make_rand_sparse_tensors(dtype, m, n, k)
-        if b_comp is not None:
-            ABs.append(make_rand_sparse_tensors(dtype, m, n, k))
-    BComps, Es, As, Bs = zip(*ABs)
-    return list(BComps), list(Es), list(As), list(Bs)

benchmarks/disagg_benchmarks/rate_limiter.py

@@ -1,45 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
-
-import asyncio
-import time
-
-
-class RateLimiter:
-    """Token bucket rate limiter implementation"""
-
-    def __init__(self, rate_limit):
-        self.rate_limit = rate_limit  # Requests per second
-        self.num_available_tokens = rate_limit  # Available tokens
-        self.last_refill = time.monotonic()  # Last token refill time
-        self.lock = asyncio.Lock()  # Synchronization lock
-
-    async def acquire(self):
-        """Acquire a token from the rate limiter"""
-        while True:
-            async with self.lock:
-                current_time = time.monotonic()
-                elapsed = current_time - self.last_refill
-
-                # Refill num_available_tokens if more than 1 second has passed
-                if elapsed > 1.0:
-                    self.num_available_tokens = self.rate_limit
-                    self.last_refill = current_time
-
-                # Check if num_available_tokens are available
-                if self.num_available_tokens > 0:
-                    self.num_available_tokens -= 1
-                    return True
-
-                # Calculate wait time if no num_available_tokens available
-                wait_time = 1.0 - elapsed
-            await asyncio.sleep(wait_time)
-
-    async def __aenter__(self):
-        """Enter async context manager - acquire token"""
-        await self.acquire()
-        return self
-
-    async def __aexit__(self, exc_type, exc_value, traceback):
-        """Exit async context manager - no cleanup needed"""
-        pass

benchmarks/disagg_benchmarks/request_queue.py

@@ -1,39 +0,0 @@
-# SPDX-License-Identifier: Apache-2.0
-# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
-
-import asyncio
-from collections import deque
-
-
-class RequestQueue:
-    """Request queue manager with concurrency control"""
-
-    def __init__(self, max_concurrent, max_queue_size):
-        # Maximum concurrent requests
-        self.max_concurrent = max_concurrent
-        self.max_queue_size = max_queue_size  # Maximum queue size
-        # Concurrency control
-        self.semaphore = asyncio.Semaphore(max_concurrent)
-        self.queue = deque()  # Request queue
-        self.queue_size = 0  # Current queue size
-        self.lock = asyncio.Lock()  # Sync queue Lock
-
-    async def enqueue(self, task):
-        """Add a request task to the queue"""
-        async with self.lock:
-            if self.queue_size >= self.max_queue_size:
-                return False
-
-            self.queue.append(task)
-            self.queue_size += 1
-            return True
-
-    async def process(self):
-        """Process queued requests using semaphore for concurrency control"""
-        while True:
-            if self.queue:
-                async with self.semaphore, self.lock:
-                    task = self.queue.popleft()
-                    self.queue_size -= 1
-                    await task
-            await asyncio.sleep(0.01)  # Yield control to event loop

benchmarks/fused_kernels/layernorm_rms_benchmarks.py

@@ -13,6 +13,7 @@ from torch.utils.benchmark import Measurement as TMeasurement
 from tqdm import tqdm
 
 import vllm._custom_ops as ops
+from vllm.benchmarks.lib.utils import default_vllm_config
 from vllm.model_executor.layers.layernorm import RMSNorm
 from vllm.model_executor.layers.quantization.utils.fp8_utils import (
     per_token_group_quant_fp8,
@@ -291,6 +292,7 @@ def print_timers(timers: Iterable[TMeasurement]):
     compare.print()
 
 
+@default_vllm_config()
 def main():
     torch.set_default_device("cuda")
     bench_params = get_bench_params()

benchmarks/kernels/benchmark_activation.py

@@ -7,6 +7,7 @@ import itertools
 import torch
 
 import vllm.model_executor.layers.activation  # noqa F401
+from vllm.benchmarks.lib.utils import default_vllm_config
 from vllm.model_executor.custom_op import op_registry
 from vllm.triton_utils import triton
 from vllm.utils.argparse_utils import FlexibleArgumentParser
@@ -18,6 +19,7 @@ intermediate_size = [3072, 9728, 12288]
 configs = list(itertools.product(batch_size_range, seq_len_range, intermediate_size))
 
 
+@default_vllm_config()
 def benchmark_activation(
     batch_size: int,
     seq_len: int,

benchmarks/kernels/benchmark_block_fp8_gemm.py

@@ -8,6 +8,7 @@ os.environ["VLLM_USE_DEEP_GEMM"] = "0"
 
 import torch
 
+from vllm.benchmarks.lib.utils import default_vllm_config
 from vllm.model_executor.layers.quantization.utils.fp8_utils import (
     W8A8BlockFp8LinearOp,
 )
@@ -40,6 +41,7 @@ DEEPSEEK_V3_SHAPES = [
 ]
 
 
+@default_vllm_config()
 def build_w8a8_block_fp8_runner(M, N, K, block_size, device, use_cutlass):
     """Build runner function for w8a8 block fp8 matmul."""
     factor_for_scale = 1e-2

benchmarks/kernels/benchmark_cutlass_moe_fp8.py

@@ -11,12 +11,13 @@ import torch
 import vllm.model_executor.layers.fused_moe.modular_kernel as mk
 from tests.kernels.moe.utils import make_dummy_moe_config
 from vllm import _custom_ops as ops
+from vllm.model_executor.layers.fused_moe.activation import MoEActivation
+from vllm.model_executor.layers.fused_moe.all2all_utils import (
+    maybe_make_prepare_finalize,
+)
 from vllm.model_executor.layers.fused_moe.config import fp8_w8a8_moe_quant_config
 from vllm.model_executor.layers.fused_moe.cutlass_moe import CutlassExpertsFp8
 from vllm.model_executor.layers.fused_moe.fused_moe import fused_experts, fused_topk
-from vllm.model_executor.layers.fused_moe.prepare_finalize import (
-    MoEPrepareAndFinalizeNoEP,
-)
 from vllm.platforms import current_platform
 from vllm.utils.argparse_utils import FlexibleArgumentParser
 from vllm.v1.worker.workspace import init_workspace_manager
@@ -136,15 +137,21 @@ def bench_run(
         per_out_ch_quant=per_out_ch,
     )
 
-    fn = mk.FusedMoEModularKernel(
-        MoEPrepareAndFinalizeNoEP(),
+    moe_config = make_dummy_moe_config(
+        num_experts=num_experts,
+        hidden_dim=k,
+        intermediate_size_per_partition=n,
+        in_dtype=a.dtype,
+    )
+    fn = mk.FusedMoEKernel(
+        maybe_make_prepare_finalize(
+            moe=moe_config,
+            quant_config=quant_config,
+            allow_new_interface=True,
+            use_monolithic=False,
+        ),
         CutlassExpertsFp8(
-            moe_config=make_dummy_moe_config(
-                num_experts=num_experts,
-                hidden_dim=k,
-                intermediate_size_per_partition=n,
-                in_dtype=a.dtype,
-            ),
+            moe_config=moe_config,
             quant_config=quant_config,
         ),
     )
@@ -161,7 +168,7 @@ def bench_run(
                 w2_fp8q_cutlass,
                 topk_weights,
                 topk_ids,
-                activation="silu",
+                activation=MoEActivation.SILU,
                 global_num_experts=num_experts,
             )
     torch.cuda.synchronize()

benchmarks/kernels/benchmark_cutlass_moe_nvfp4.py

@@ -15,6 +15,9 @@ import vllm.model_executor.layers.fused_moe.modular_kernel as mk
 from tests.kernels.moe.utils import make_dummy_moe_config
 from vllm import _custom_ops as ops
 from vllm.config import ParallelConfig, VllmConfig, set_current_vllm_config
+from vllm.model_executor.layers.fused_moe.all2all_utils import (
+    maybe_make_prepare_finalize,
+)
 from vllm.model_executor.layers.fused_moe.config import (
     fp8_w8a8_moe_quant_config,
     nvfp4_moe_quant_config,
@@ -23,9 +26,6 @@ from vllm.model_executor.layers.fused_moe.cutlass_moe import (
     CutlassExpertsFp4,
 )
 from vllm.model_executor.layers.fused_moe.fused_moe import fused_experts, fused_topk
-from vllm.model_executor.layers.fused_moe.prepare_finalize import (
-    MoEPrepareAndFinalizeNoEP,
-)
 from vllm.scalar_type import scalar_types
 from vllm.utils.argparse_utils import FlexibleArgumentParser
 from vllm.v1.worker.workspace import init_workspace_manager
@@ -196,10 +196,21 @@ def bench_run(
             g2_alphas=w2_gs,
         )
 
-        kernel = mk.FusedMoEModularKernel(
-            MoEPrepareAndFinalizeNoEP(),
+        moe_config = make_dummy_moe_config(
+            num_experts=num_experts,
+            hidden_dim=k,
+            intermediate_size_per_partition=n,
+            in_dtype=a.dtype,
+        )
+        kernel = mk.FusedMoEKernel(
+            maybe_make_prepare_finalize(
+                moe=moe_config,
+                quant_config=quant_config,
+                allow_new_interface=True,
+                use_monolithic=False,
+            ),
             CutlassExpertsFp4(
-                make_dummy_moe_config(),
+                moe_config=moe_config,
                 quant_config=quant_config,
             ),
         )
@@ -240,11 +251,17 @@ def bench_run(
             g1_alphas=w1_gs,
             g2_alphas=w2_gs,
         )
+        moe_config = make_dummy_moe_config()
 
-        kernel = mk.FusedMoEModularKernel(
-            MoEPrepareAndFinalizeNoEP(),
+        kernel = mk.FusedMoEKernel(
+            maybe_make_prepare_finalize(
+                moe=moe_config,
+                quant_config=quant_config,
+                allow_new_interface=True,
+                use_monolithic=False,
+            ),
             CutlassExpertsFp4(
-                make_dummy_moe_config(),
+                moe_config=moe_config,
                 quant_config=quant_config,
             ),
         )

benchmarks/kernels/benchmark_device_communicators.py

@@ -30,6 +30,9 @@ import torch.distributed as dist
 from torch.distributed import ProcessGroup
 
 from vllm.distributed.device_communicators.custom_all_reduce import CustomAllreduce
+from vllm.distributed.device_communicators.flashinfer_all_reduce import (
+    FlashInferAllReduce,
+)
 from vllm.distributed.device_communicators.pynccl import (
     PyNcclCommunicator,
     register_nccl_symmetric_ops,
@@ -44,7 +47,7 @@ from vllm.utils.argparse_utils import FlexibleArgumentParser
 logger = init_logger(__name__)
 
 # Default sequence lengths to benchmark
-DEFAULT_SEQUENCE_LENGTHS = [128, 512, 1024, 2048, 4096, 8192]
+DEFAULT_SEQUENCE_LENGTHS = [16, 64, 128, 512, 1024, 2048, 4096, 8192]
 
 # Fixed hidden size and dtype for all benchmarks
 HIDDEN_SIZE = 8192
@@ -81,6 +84,7 @@ class CommunicatorBenchmark:
         self.symm_mem_comm = None
         self.symm_mem_comm_multimem = None
         self.symm_mem_comm_two_shot = None
+        self.fi_ar_comm = None
 
         self._init_communicators()
 
@@ -161,6 +165,22 @@ class CommunicatorBenchmark:
             )
             self.symm_mem_comm_two_shot = None
 
+        try:
+            self.fi_ar_comm = FlashInferAllReduce(
+                group=self.cpu_group,
+                device=self.device,
+            )
+            if not self.fi_ar_comm.disabled:
+                logger.info("Rank %s: FlashInferAllReduce initialized", self.rank)
+            else:
+                logger.info("Rank %s: FlashInferAllReduce disabled", self.rank)
+                self.fi_ar_comm = None
+        except Exception as e:
+            logger.warning(
+                "Rank %s: Failed to initialize FlashInferAllReduce: %s", self.rank, e
+            )
+            self.fi_ar_comm = None
+
     def benchmark_allreduce(
         self, sequence_length: int, num_warmup: int, num_trials: int
     ) -> dict[str, float]:
@@ -180,7 +200,8 @@ class CommunicatorBenchmark:
                     lambda t, c=comm: c.custom_all_reduce(t),
                     lambda t, c=comm: c.should_custom_ar(t),
                     comm.capture(),
-                    "1stage",  # env variable value
+                    {"VLLM_CUSTOM_ALLREDUCE_ALGO": "1stage"},
+                    None,  # no destroy function
                 )
             )
             # CustomAllreduce two-shot
@@ -190,7 +211,8 @@ class CommunicatorBenchmark:
                     lambda t, c=comm: c.custom_all_reduce(t),
                     lambda t, c=comm: c.should_custom_ar(t),
                     comm.capture(),
-                    "2stage",  # env variable value
+                    {"VLLM_CUSTOM_ALLREDUCE_ALGO": "2stage"},
+                    None,  # no destroy function
                 )
             )
 
@@ -202,7 +224,8 @@ class CommunicatorBenchmark:
                     lambda t, c=comm: c.all_reduce(t),
                     lambda t: True,  # Always available if initialized
                     nullcontext(),
-                    None,  # no env variable needed
+                    {},  # no env variable needed
+                    None,  # no destroy function
                 )
             )
             communicators.append(
@@ -211,7 +234,8 @@ class CommunicatorBenchmark:
                     lambda t: torch.ops.vllm.all_reduce_symmetric_with_copy(t),
                     lambda t: True,  # Always available if initialized
                     nullcontext(),
-                    None,  # no env variable needed
+                    {},  # no env variable needed
+                    None,  # no destroy function
                 )
             )
 
@@ -223,7 +247,8 @@ class CommunicatorBenchmark:
                     lambda t, c=comm: c.all_reduce(t),
                     lambda t, c=comm: c.should_use_symm_mem(t),
                     nullcontext(),
-                    None,  # no env variable needed
+                    {},  # no env variable needed
+                    None,  # no destroy function
                 )
             )
 
@@ -235,29 +260,67 @@ class CommunicatorBenchmark:
                     lambda t, c=comm: c.all_reduce(t),
                     lambda t, c=comm: c.should_use_symm_mem(t),
                     nullcontext(),
-                    None,  # no env variable needed
+                    {},  # no env variable needed
+                    None,  # no destroy function needed
+                )
+            )
+
+        if self.fi_ar_comm is not None:
+            comm = self.fi_ar_comm
+            communicators.append(
+                (
+                    "flashinfer_trtllm",
+                    lambda t, c=comm: c.all_reduce(t),
+                    lambda t, c=comm: c.should_use_fi_ar(t),
+                    nullcontext(),
+                    {"VLLM_FLASHINFER_ALLREDUCE_BACKEND": "trtllm"},
+                    lambda c=comm: c.destroy(),
+                )
+            )
+            communicators.append(
+                (
+                    "flashinfer_mnnvl",
+                    lambda t, c=comm: c.all_reduce(t),
+                    lambda t, c=comm: c.should_use_fi_ar(t),
+                    nullcontext(),
+                    {"VLLM_FLASHINFER_ALLREDUCE_BACKEND": "mnnvl"},
+                    lambda c=comm: c.destroy(),
                 )
             )
 
         # Benchmark each communicator
-        for name, allreduce_fn, should_use_fn, context, env_var in communicators:
-            # Set environment variable if needed
-            if env_var is not None:
-                os.environ["VLLM_CUSTOM_ALLREDUCE_ALGO"] = env_var
-            else:
-                # Clear the environment variable to avoid interference
-                os.environ.pop("VLLM_CUSTOM_ALLREDUCE_ALGO", None)
-
-            latency = self.benchmark_allreduce_single(
-                sequence_length,
-                allreduce_fn,
-                should_use_fn,
-                context,
-                num_warmup,
-                num_trials,
-            )
-            if latency is not None:
-                results[name] = latency
+        for (
+            name,
+            allreduce_fn,
+            should_use_fn,
+            context,
+            env_dict,
+            destroy_fn,
+        ) in communicators:
+            # Save original values and apply new environment variables
+            saved_env = {key: os.environ.get(key) for key in env_dict}
+            for key, value in env_dict.items():
+                os.environ[key] = value
+            try:
+                latency = self.benchmark_allreduce_single(
+                    sequence_length,
+                    allreduce_fn,
+                    should_use_fn,
+                    context,
+                    num_warmup,
+                    num_trials,
+                )
+                if latency is not None:
+                    results[name] = latency
+            finally:
+                if destroy_fn is not None:
+                    destroy_fn()
+                # Restore environment variables to their original state
+                for key, original_value in saved_env.items():
+                    if original_value is None:
+                        os.environ.pop(key, None)
+                    else:
+                        os.environ[key] = original_value
 
         return results
 

benchmarks/kernels/benchmark_fused_collective.py

@@ -5,8 +5,11 @@
 Benchmark for FlashInfer fused collective operations vs standard operations.
 
 This benchmark compares:
-1. FlashInfer's trtllm_allreduce_fusion (fused allreduce + rmsnorm + optional quant)
-2. Standard tensor_model_parallel_all_reduce + separate rmsnorm/quant operations
+1. FlashInfer's allreduce_fusion with trtllm backend
+   (fused allreduce + rmsnorm + optional FP8/FP4 quant)
+2. FlashInfer's allreduce_fusion with mnnvl backend
+   (fused allreduce + rmsnorm only, no quantization support)
+3. Standard tensor_model_parallel_all_reduce + separate rmsnorm/quant operations
 
 Usage with torchrun:
     torchrun --nproc_per_node=2 benchmark_fused_collective.py
@@ -24,7 +27,6 @@ import torch.distributed as dist  # type: ignore
 
 from vllm.config.vllm import CompilationConfig, VllmConfig, set_current_vllm_config
 from vllm.distributed import (
-    get_tp_group,
     tensor_model_parallel_all_reduce,
 )
 from vllm.distributed.parallel_state import (
@@ -49,14 +51,19 @@ SCALED_FP4_QUANT_OP = torch.ops._C.scaled_fp4_quant
 logger = init_logger(__name__)
 
 # Try to import FlashInfer
+TorchDistBackend = None
 try:
     import flashinfer.comm as flashinfer_comm  # type: ignore
+    from flashinfer.comm.mnnvl import (  # type: ignore
+        TorchDistBackend,
+    )
 
-    if not hasattr(flashinfer_comm, "trtllm_allreduce_fusion"):
+    if not (
+        hasattr(flashinfer_comm, "allreduce_fusion")
+        and hasattr(flashinfer_comm, "create_allreduce_fusion_workspace")
+    ):
         flashinfer_comm = None
-        logger.warning(
-            "FlashInfer comm module found but missing trtllm_allreduce_fusion"
-        )
+        logger.warning("FlashInfer comm module found but missing allreduce_fusion API")
 except ImportError:
     flashinfer_comm = None
     logger.warning("FlashInfer not found, only benchmarking standard operations")
@@ -74,57 +81,70 @@ _FI_MAX_SIZES = {
     8: 64 * MiB,  # 64MB
 }
 
-# Global workspace tensor for FlashInfer
-_FI_WORKSPACE_TENSOR = None
+# Global workspace tensors for FlashInfer (keyed by backend name)
+_FI_WORKSPACES: dict = {}
+
+# Backends to benchmark
+FLASHINFER_BACKENDS = ["trtllm", "mnnvl"]
 
 
 def setup_flashinfer_workspace(
+    backend: str,
     world_size: int,
     rank: int,
     hidden_dim: int,
     max_token_num: int,
-    use_fp32_lamport: bool = False,
+    dtype: torch.dtype,
 ):
     """Setup FlashInfer workspace for fused allreduce operations."""
-    global _FI_WORKSPACE_TENSOR
+    global FI_WORKSPACES
 
     if flashinfer_comm is None:
-        return None, None
+        return None
 
     if world_size not in _FI_MAX_SIZES:
         logger.warning("FlashInfer not supported for world size %s", world_size)
-        return None, None
+        return None
 
     try:
-        # Create IPC workspace
-        ipc_handles, workspace_tensor = (
-            flashinfer_comm.trtllm_create_ipc_workspace_for_all_reduce_fusion(
-                tp_rank=rank,
-                tp_size=world_size,
-                max_token_num=max_token_num,
-                hidden_dim=hidden_dim,
-                group=get_tp_group().device_group,
-                use_fp32_lamport=use_fp32_lamport,
-            )
+        kwargs = {}
+        if TorchDistBackend is not None:
+            kwargs["comm_backend"] = TorchDistBackend(group=dist.group.WORLD)
+
+        workspace = flashinfer_comm.create_allreduce_fusion_workspace(
+            backend=backend,
+            world_size=world_size,
+            rank=rank,
+            max_token_num=max_token_num,
+            hidden_dim=hidden_dim,
+            dtype=dtype,
+            **kwargs,
         )
 
-        _FI_WORKSPACE_TENSOR = workspace_tensor
-        return ipc_handles, workspace_tensor
+        _FI_WORKSPACES[backend] = workspace
+        return workspace
     except Exception as e:
-        logger.error("Failed to setup FlashInfer workspace: %s", e)
-        return None, None
+        logger.error(
+            "Failed to setup FlashInfer workspace (backend=%s): %s", backend, e
+        )
+        return None
 
 
-def cleanup_flashinfer_workspace(ipc_handles):
-    """Cleanup FlashInfer workspace."""
-    if flashinfer_comm is None or ipc_handles is None:
+def cleanup_flashinfer_workspaces():
+    """Cleanup all FlashInfer workspaces."""
+    if flashinfer_comm is None:
         return
 
-    try:
-        group = get_tp_group().device_group
-        flashinfer_comm.trtllm_destroy_ipc_workspace_for_all_reduce(ipc_handles, group)
-    except Exception as e:
-        logger.error("Failed to cleanup FlashInfer workspace: %s", e)
+    for backend, workspace in _FI_WORKSPACES.items():
+        try:
+            workspace.destroy()
+        except Exception as e:
+            logger.error(
+                "Failed to cleanup FlashInfer workspace (backend=%s): %s",
+                backend,
+                e,
+            )
+    _FI_WORKSPACES.clear()
 
 
 class FlashInferFusedAllReduceParams:
@@ -132,25 +152,15 @@ class FlashInferFusedAllReduceParams:
 
     def __init__(
         self,
-        rank: int,
-        world_size: int,
-        use_fp32_lamport: bool = False,
         max_token_num: int = 1024,
     ):
-        self.rank = rank
-        self.world_size = world_size
-        self.use_fp32_lamport = use_fp32_lamport
-        self.trigger_completion_at_end = True
         self.launch_with_pdl = True
         self.fp32_acc = True
         self.max_token_num = max_token_num
 
-    def get_trtllm_fused_allreduce_kwargs(self):
+    def get_flashinfer_fused_allreduce_kwargs(self):
         return {
-            "world_rank": self.rank,
-            "world_size": self.world_size,
             "launch_with_pdl": self.launch_with_pdl,
-            "trigger_completion_at_end": self.trigger_completion_at_end,
             "fp32_acc": self.fp32_acc,
         }
 
@@ -161,11 +171,12 @@ def flashinfer_fused_allreduce_rmsnorm(
     rms_gamma: torch.Tensor,
     rms_eps: float,
     allreduce_params: "FlashInferFusedAllReduceParams",
+    workspace: object,
     use_oneshot: bool,
     norm_out: torch.Tensor | None = None,
 ):
     """FlashInfer fused allreduce + rmsnorm operation."""
-    if flashinfer_comm is None or _FI_WORKSPACE_TENSOR is None:
+    if flashinfer_comm is None or workspace is None:
         raise RuntimeError("FlashInfer not available or workspace not initialized")
 
     if norm_out is None:
@@ -174,24 +185,25 @@ def flashinfer_fused_allreduce_rmsnorm(
     else:
         residual_out = input_tensor
 
-    flashinfer_comm.trtllm_allreduce_fusion(
-        allreduce_in=input_tensor,
-        token_num=input_tensor.shape[0],
+    layout_code = None
+    if workspace.backend == "trtllm":
+        layout_code = flashinfer_comm.QuantizationSFLayout.SWIZZLED_128x4
+
+    flashinfer_comm.allreduce_fusion(
+        input=input_tensor,
+        workspace=workspace,
+        pattern=flashinfer_comm.AllReduceFusionPattern.kARResidualRMSNorm,
         residual_in=residual,
         residual_out=residual_out,
         norm_out=norm_out,
         rms_gamma=rms_gamma,
         rms_eps=rms_eps,
-        hidden_dim=input_tensor.shape[-1],
-        workspace_ptrs=_FI_WORKSPACE_TENSOR,
-        pattern_code=flashinfer_comm.AllReduceFusionPattern.kARResidualRMSNorm,
-        allreduce_out=None,
         quant_out=None,
         scale_out=None,
-        layout_code=flashinfer_comm.QuantizationSFLayout.SWIZZLED_128x4,
+        layout_code=layout_code,
         scale_factor=None,
         use_oneshot=use_oneshot,
-        **allreduce_params.get_trtllm_fused_allreduce_kwargs(),
+        **allreduce_params.get_flashinfer_fused_allreduce_kwargs(),
     )
 
 
@@ -202,12 +214,16 @@ def flashinfer_fused_allreduce_rmsnorm_fp8_quant(
     rms_eps: float,
     scale_factor: torch.Tensor,
     allreduce_params: FlashInferFusedAllReduceParams,
+    workspace: object,
     use_oneshot: bool = True,
     norm_out: torch.Tensor | None = None,
     quant_out: torch.Tensor | None = None,
 ):
-    """FlashInfer fused allreduce + rmsnorm + FP8 quantization."""
-    if flashinfer_comm is None or _FI_WORKSPACE_TENSOR is None:
+    """FlashInfer fused allreduce + rmsnorm + FP8 quantization.
+
+    Note: Only supported by the trtllm backend.
+    """
+    if flashinfer_comm is None or workspace is None:
         raise RuntimeError("FlashInfer not available or workspace not initialized")
 
     if norm_out is None:
@@ -216,24 +232,21 @@ def flashinfer_fused_allreduce_rmsnorm_fp8_quant(
     else:
         residual_out = input_tensor
 
-    flashinfer_comm.trtllm_allreduce_fusion(
-        allreduce_in=input_tensor,
-        token_num=input_tensor.shape[0],
+    flashinfer_comm.allreduce_fusion(
+        input=input_tensor,
+        workspace=workspace,
+        pattern=flashinfer_comm.AllReduceFusionPattern.kARResidualRMSNormFP8Quant,
         residual_in=residual,
         residual_out=residual_out,
         norm_out=norm_out,
         rms_gamma=rms_gamma,
         rms_eps=rms_eps,
-        hidden_dim=input_tensor.shape[-1],
-        workspace_ptrs=_FI_WORKSPACE_TENSOR,
-        pattern_code=flashinfer_comm.AllReduceFusionPattern.kARResidualRMSNormFP8Quant,
-        allreduce_out=None,
         quant_out=quant_out,
         scale_out=None,
         layout_code=flashinfer_comm.QuantizationSFLayout.SWIZZLED_128x4,
         scale_factor=scale_factor,
         use_oneshot=use_oneshot,
-        **allreduce_params.get_trtllm_fused_allreduce_kwargs(),
+        **allreduce_params.get_flashinfer_fused_allreduce_kwargs(),
     )
 
 
@@ -244,13 +257,17 @@ def flashinfer_fused_allreduce_rmsnorm_fp4_quant(
     rms_eps: float,
     input_global_scale: torch.Tensor,
     allreduce_params: FlashInferFusedAllReduceParams,
+    workspace: object,
     quant_out: torch.Tensor,
     use_oneshot: bool,
     output_scale: torch.Tensor,
     norm_out: torch.Tensor | None = None,
 ):
-    """FlashInfer fused allreduce + rmsnorm + FP4 quantization."""
-    if flashinfer_comm is None or _FI_WORKSPACE_TENSOR is None:
+    """FlashInfer fused allreduce + rmsnorm + FP4 quantization.
+
+    Note: Only supported by the trtllm backend.
+    """
+    if flashinfer_comm is None or workspace is None:
         raise RuntimeError("FlashInfer not available or workspace not initialized")
 
     if norm_out is None:
@@ -259,24 +276,21 @@ def flashinfer_fused_allreduce_rmsnorm_fp4_quant(
     else:
         residual_out = input_tensor
 
-    flashinfer_comm.trtllm_allreduce_fusion(
-        allreduce_in=input_tensor,
-        token_num=input_tensor.shape[0],
+    flashinfer_comm.allreduce_fusion(
+        input=input_tensor,
+        workspace=workspace,
+        pattern=flashinfer_comm.AllReduceFusionPattern.kARResidualRMSNormFP4Quant,
         residual_in=residual,
         residual_out=residual_out,
         norm_out=norm_out,
         rms_gamma=rms_gamma,
         rms_eps=rms_eps,
-        hidden_dim=input_tensor.shape[-1],
-        workspace_ptrs=_FI_WORKSPACE_TENSOR,
-        pattern_code=flashinfer_comm.AllReduceFusionPattern.kARResidualRMSNormFP4Quant,
-        allreduce_out=None,
         quant_out=quant_out,
         scale_out=output_scale,
         layout_code=flashinfer_comm.QuantizationSFLayout.SWIZZLED_128x4,
         scale_factor=input_global_scale,
         use_oneshot=use_oneshot,
-        **allreduce_params.get_trtllm_fused_allreduce_kwargs(),
+        **allreduce_params.get_flashinfer_fused_allreduce_kwargs(),
     )
 
 
@@ -409,13 +423,16 @@ def run_benchmarks(
     dtype: torch.dtype,
     use_residual: bool,
     allreduce_params: FlashInferFusedAllReduceParams | None,
+    workspaces: dict,
     quant_modes: set[str],
     no_oneshot: bool,
 ):
     """Run all benchmarks for given configuration.
 
     Args:
-        quant_mode: "none", "fp8_only", "fp4_only", or "all"
+        allreduce_params: Shared parameters for FlashInfer fused allreduce.
+        workspaces: Dict mapping backend name ("trtllm", "mnnvl") to workspace.
+        quant_modes: Set of quantization modes: "none", "fp8", "fp4".
     """
     (
         input_tensor,
@@ -431,18 +448,18 @@ def run_benchmarks(
 
     rms_eps = 1e-6
     results = {}
-    vllm_fused_allreduce = VllmFusedAllreduce(hidden_dim, dtype)
     use_oneshot_options = [False] if no_oneshot else [True, False]
 
-    # Create RMSNorm and QuantFP8 layers once for native benchmarks
-
     if "none" in quant_modes:
         # Standard AllReduce + RMSNorm
+        # Re-create VllmFusedAllreduce per config so CustomOp binds the
+        # correct forward method (native vs custom kernel).
         for custom_op in ["-rms_norm", "+rms_norm"]:
             with set_current_vllm_config(
                 VllmConfig(compilation_config=CompilationConfig(custom_ops=[custom_op]))
             ):
                 try:
+                    vllm_fused_allreduce = VllmFusedAllreduce(hidden_dim, dtype)
                     suffix = (
                         "_custom_rms_norm" if "+" in custom_op else "_native_rms_norm"
                     )
@@ -461,6 +478,7 @@ def run_benchmarks(
             VllmConfig(compilation_config=CompilationConfig(custom_ops=["-rms_norm"]))
         ):
             try:
+                vllm_fused_allreduce = VllmFusedAllreduce(hidden_dim, dtype)
                 standard_allreduce_rmsnorm_native_compiled = torch.compile(
                     vllm_fused_allreduce.allreduce_rmsnorm,
                     fullgraph=True,
@@ -476,10 +494,11 @@ def run_benchmarks(
                 logger.error("Standard AllReduce+RMSNorm Native Compiled failed: %s", e)
                 results["standard_allreduce_rmsnorm_native_compiled"] = float("inf")
 
-        # FlashInfer Fused AllReduce + RMSNorm Oneshot/Twoshot
-        if flashinfer_comm is not None and allreduce_params is not None:
+        # FlashInfer Fused AllReduce + RMSNorm (all backends)
+        for backend, workspace in workspaces.items():
             for use_oneshot in use_oneshot_options:
                 suffix = "_oneshot" if use_oneshot else "_twoshot"
+                key = f"flashinfer_{backend}_fused_allreduce_rmsnorm{suffix}"
                 try:
                     time_ms = benchmark_operation(
                         flashinfer_fused_allreduce_rmsnorm,
@@ -489,14 +508,17 @@ def run_benchmarks(
                         rms_gamma=rms_gamma,
                         rms_eps=rms_eps,
                         allreduce_params=allreduce_params,
+                        workspace=workspace,
                         use_oneshot=use_oneshot,
                     )
-                    results[f"flashinfer_fused_allreduce_rmsnorm{suffix}"] = time_ms
+                    results[key] = time_ms
                 except Exception as e:
-                    logger.error("FlashInfer Fused AllReduce+RMSNorm failed: %s", e)
-                    results[f"flashinfer_fused_allreduce_rmsnorm{suffix}"] = float(
-                        "inf"
+                    logger.error(
+                        "FlashInfer (%s) Fused AllReduce+RMSNorm failed: %s",
+                        backend,
+                        e,
                     )
+                    results[key] = float("inf")
 
     if "fp8" in quant_modes:
         # Standard AllReduce + RMSNorm + FP8 Quant
@@ -505,7 +527,7 @@ def run_benchmarks(
                 "_custom_rms_norm" if "+" in rms_norm_custom_op else "_native_rms_norm"
             )
             for quant_fp8_custom_op in ["-quant_fp8", "+quant_fp8"]:
-                suffix += (
+                op_suffix = suffix + (
                     "_custom_quant_fp8"
                     if "+" in quant_fp8_custom_op
                     else "_native_quant_fp8"
@@ -518,16 +540,17 @@ def run_benchmarks(
                     )
                 ):
                     try:
+                        vllm_fused_allreduce = VllmFusedAllreduce(hidden_dim, dtype)
                         time_ms = benchmark_operation(
                             vllm_fused_allreduce.allreduce_rmsnorm_fp8_quant,
                             input_tensor,
                             residual=residual,
                             scale_factor=scale_fp8,
                         )
-                        results[f"standard_allreduce{suffix}"] = time_ms
+                        results[f"standard_allreduce{op_suffix}"] = time_ms
                     except Exception as e:
                         logger.error("Standard AllReduce+RMSNorm+FP8 failed: %s", e)
-                        results[f"standard_allreduce{suffix}"] = float("inf")
+                        results[f"standard_allreduce{op_suffix}"] = float("inf")
 
         # Standard AllReduce + RMSNorm + FP8 Quant Native Compiled
         with set_current_vllm_config(
@@ -538,6 +561,7 @@ def run_benchmarks(
             )
         ):
             try:
+                vllm_fused_allreduce = VllmFusedAllreduce(hidden_dim, dtype)
                 standard_allreduce_rmsnorm_fp8_quant_native_compiled = torch.compile(
                     vllm_fused_allreduce.allreduce_rmsnorm_fp8_quant,
                     fullgraph=True,
@@ -560,10 +584,12 @@ def run_benchmarks(
                     "inf"
                 )
 
-        # FlashInfer Fused AllReduce + RMSNorm + FP8 Quant Oneshot
-        if flashinfer_comm is not None and allreduce_params is not None:
+        # FlashInfer Fused AllReduce + RMSNorm + FP8 Quant (trtllm only)
+        if "trtllm" in workspaces:
+            trtllm_ws = workspaces["trtllm"]
             for use_oneshot in use_oneshot_options:
                 suffix = "_oneshot" if use_oneshot else "_twoshot"
+                key = f"flashinfer_trtllm_fused_allreduce_rmsnorm_fp8_quant{suffix}"
                 try:
                     time_ms = benchmark_operation(
                         flashinfer_fused_allreduce_rmsnorm_fp8_quant,
@@ -575,19 +601,16 @@ def run_benchmarks(
                         scale_factor=scale_fp8,
                         quant_out=quant_out_fp8,
                         allreduce_params=allreduce_params,
+                        workspace=trtllm_ws,
                         use_oneshot=use_oneshot,
                     )
-                    results[f"flashinfer_fused_allreduce_rmsnorm_fp8_quant{suffix}"] = (
-                        time_ms
-                    )
+                    results[key] = time_ms
                 except Exception as e:
                     logger.error(
-                        "FlashInfer Fused AllReduce+RMSNorm+FP8 Oneshot failed: %s",
+                        "FlashInfer (trtllm) Fused AllReduce+RMSNorm+FP8 failed: %s",
                         e,
                     )
-                    results[f"flashinfer_fused_allreduce_rmsnorm_fp8_quant{suffix}"] = (
-                        float("inf")
-                    )
+                    results[key] = float("inf")
 
     if "fp4" in quant_modes and current_platform.has_device_capability(100):
         # Standard AllReduce + RMSNorm + FP4 Quant
@@ -603,6 +626,7 @@ def run_benchmarks(
                 )
             ):
                 try:
+                    vllm_fused_allreduce = VllmFusedAllreduce(hidden_dim, dtype)
                     time_ms = benchmark_operation(
                         vllm_fused_allreduce.allreduce_rmsnorm_fp4_quant,
                         input_tensor,
@@ -621,6 +645,7 @@ def run_benchmarks(
             VllmConfig(compilation_config=CompilationConfig(custom_ops=["-rms_norm"]))
         ):
             try:
+                vllm_fused_allreduce = VllmFusedAllreduce(hidden_dim, dtype)
                 standard_allreduce_rmsnorm_fp4_quant_native_compiled = torch.compile(
                     vllm_fused_allreduce.allreduce_rmsnorm_fp4_quant,
                     fullgraph=True,
@@ -645,10 +670,12 @@ def run_benchmarks(
                     "inf"
                 )
 
-        # FlashInfer Fused AllReduce + RMSNorm + FP4 Quant Oneshot
-        if flashinfer_comm is not None and allreduce_params is not None:
+        # FlashInfer Fused AllReduce + RMSNorm + FP4 Quant (trtllm only)
+        if "trtllm" in workspaces:
+            trtllm_ws = workspaces["trtllm"]
             for use_oneshot in use_oneshot_options:
                 suffix = "_oneshot" if use_oneshot else "_twoshot"
+                key = f"flashinfer_trtllm_fused_allreduce_rmsnorm_fp4_quant{suffix}"
                 try:
                     time_ms = benchmark_operation(
                         flashinfer_fused_allreduce_rmsnorm_fp4_quant,
@@ -659,49 +686,18 @@ def run_benchmarks(
                         rms_eps=rms_eps,
                         input_global_scale=scale_fp4,
                         allreduce_params=allreduce_params,
+                        workspace=trtllm_ws,
                         quant_out=fp4_quant_out,
                         output_scale=fp4_output_scale,
                         use_oneshot=use_oneshot,
                     )
-                    results[f"flashinfer_fused_allreduce_rmsnorm_fp4_quant{suffix}"] = (
-                        time_ms
-                    )
+                    results[key] = time_ms
                 except Exception as e:
                     logger.error(
-                        "FlashInfer Fused AllReduce+RMSNorm+FP4 Oneshot failed: %s",
+                        "FlashInfer (trtllm) Fused AllReduce+RMSNorm+FP4 failed: %s",
                         e,
                     )
-                    results[f"flashinfer_fused_allreduce_rmsnorm_fp4_quant{suffix}"] = (
-                        float("inf")
-                    )
-
-        # FlashInfer Fused AllReduce + RMSNorm + FP4 Quant Two-shot
-        if flashinfer_comm is not None and allreduce_params is not None:
-            try:
-                time_ms = benchmark_operation(
-                    flashinfer_fused_allreduce_rmsnorm_fp4_quant,
-                    input_tensor,
-                    residual=residual,
-                    norm_out=norm_out,
-                    rms_gamma=rms_gamma,
-                    rms_eps=rms_eps,
-                    input_global_scale=scale_fp4,
-                    allreduce_params=allreduce_params,
-                    quant_out=fp4_quant_out,
-                    output_scale=fp4_output_scale,
-                    use_oneshot=False,
-                )
-                results["flashinfer_fused_allreduce_rmsnorm_fp4_quant_twoshot"] = (
-                    time_ms
-                )
-            except Exception as e:
-                logger.error(
-                    "FlashInfer Fused AllReduce+RMSNorm+FP4 Two-shot failed: %s",
-                    e,
-                )
-                results["flashinfer_fused_allreduce_rmsnorm_fp4_quant_twoshot"] = float(
-                    "inf"
-                )
+                    results[key] = float("inf")
 
     return results
 
@@ -1039,24 +1035,33 @@ def main():
 
     configs = list(itertools.product(args.num_tokens, dtypes, residual_options))
 
-    # Setup FlashInfer workspace if available
-    ipc_handles = None
+    # Setup FlashInfer workspaces for all backends
     allreduce_params = None
 
     if flashinfer_comm is not None:
         # Use the largest hidden dimension for workspace setup
+        max_element_size = max(torch.finfo(dt).bits // 8 for dt in dtypes)
+        workspace_dtype = (
+            torch.float32
+            if max_element_size == 4
+            else (torch.bfloat16 if torch.bfloat16 in dtypes else torch.float16)
+        )
         max_num_token = _FI_MAX_SIZES.get(world_size) // (
-            args.hidden_dim * world_size * 2
+            args.hidden_dim * max_element_size
         )
 
-        ipc_handles, workspace_tensor = setup_flashinfer_workspace(
-            world_size, rank, args.hidden_dim, max_num_token
-        )
-
-        if workspace_tensor is not None:
-            allreduce_params = FlashInferFusedAllReduceParams(
-                rank=rank,
+        for backend in FLASHINFER_BACKENDS:
+            setup_flashinfer_workspace(
+                backend=backend,
                 world_size=world_size,
+                rank=rank,
+                hidden_dim=args.hidden_dim,
+                max_token_num=max_num_token,
+                dtype=workspace_dtype,
+            )
+
+        if _FI_WORKSPACES:
+            allreduce_params = FlashInferFusedAllReduceParams(
                 max_token_num=max_num_token,
             )
 
@@ -1081,6 +1086,7 @@ def main():
                 dtype,
                 use_residual,
                 allreduce_params,
+                workspaces=_FI_WORKSPACES,
                 quant_modes=quant_modes,
                 no_oneshot=args.no_oneshot,
             )
@@ -1119,11 +1125,13 @@ def main():
 
     finally:
         # Cleanup
-        if ipc_handles is not None:
-            cleanup_flashinfer_workspace(ipc_handles)
+        cleanup_flashinfer_workspaces()
 
         dist.barrier()
 
 
 if __name__ == "__main__":
-    main()
+    from vllm.config import VllmConfig, set_current_vllm_config
+
+    with set_current_vllm_config(VllmConfig()):
+        main()

benchmarks/kernels/benchmark_grouped_gemm_cutlass.py

@@ -9,15 +9,15 @@ import vllm.model_executor.layers.fused_moe.modular_kernel as mk
 from tests.kernels.moe.utils import make_dummy_moe_config
 from vllm import _custom_ops as ops
 from vllm.config import ParallelConfig, VllmConfig, set_current_vllm_config
+from vllm.model_executor.layers.fused_moe.all2all_utils import (
+    maybe_make_prepare_finalize,
+)
 from vllm.model_executor.layers.fused_moe.config import fp8_w8a8_moe_quant_config
 from vllm.model_executor.layers.fused_moe.cutlass_moe import CutlassExpertsFp8
 from vllm.model_executor.layers.fused_moe.fused_moe import (
     fused_experts,
     fused_topk,
 )
-from vllm.model_executor.layers.fused_moe.prepare_finalize import (
-    MoEPrepareAndFinalizeNoEP,
-)
 from vllm.utils.argparse_utils import FlexibleArgumentParser
 from vllm.v1.worker.workspace import init_workspace_manager
 
@@ -131,16 +131,22 @@ def bench_run(
             w2_scale=w2_scale,
             per_act_token_quant=per_act_token,
         )
+        moe_config = make_dummy_moe_config(
+            num_experts=w2.shape[0],
+            hidden_dim=w2.shape[1],
+            intermediate_size_per_partition=w2.shape[2],
+            in_dtype=a.dtype,
+        )
 
-        fn = mk.FusedMoEModularKernel(
-            MoEPrepareAndFinalizeNoEP(),
+        fn = mk.FusedMoEKernel(
+            maybe_make_prepare_finalize(
+                moe=moe_config,
+                quant_config=quant_config,
+                allow_new_interface=True,
+                use_monolithic=False,
+            ),
             CutlassExpertsFp8(
-                moe_config=make_dummy_moe_config(
-                    num_experts=w2.shape[0],
-                    hidden_dim=w2.shape[1],
-                    intermediate_size_per_partition=w2.shape[2],
-                    in_dtype=a.dtype,
-                ),
+                moe_config=moe_config,
                 quant_config=quant_config,
             ),
         )
@@ -163,16 +169,22 @@ def bench_run(
             w2_scale=w2_scale,
             per_act_token_quant=per_act_token,
         )
+        moe_config = make_dummy_moe_config(
+            num_experts=w2.shape[0],
+            hidden_dim=w2.shape[1],
+            intermediate_size_per_partition=w2.shape[2],
+            in_dtype=a.dtype,
+        )
 
-        fn = mk.FusedMoEModularKernel(
-            MoEPrepareAndFinalizeNoEP(),
+        fn = mk.FusedMoEKernel(
+            maybe_make_prepare_finalize(
+                moe=moe_config,
+                quant_config=quant_config,
+                allow_new_interface=True,
+                use_monolithic=False,
+            ),
             CutlassExpertsFp8(
-                moe_config=make_dummy_moe_config(
-                    num_experts=w2.shape[0],
-                    hidden_dim=w2.shape[1],
-                    intermediate_size_per_partition=w2.shape[2],
-                    in_dtype=a.dtype,
-                ),
+                moe_config=moe_config,
                 quant_config=quant_config,
             ),
         )