Run 11 SUCCESS: 881GB NVFP4 exported, add vLLM serve script

scripts/serve_vllm.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+"""
+DeepSeek V4 Pro NVFP4 — vLLM OpenAI-compatible server.
+
+Run from the venv on the B200 node:
+    source /root/nvidia-meeting/venv/bin/activate
+    python3 /root/nvidia-meeting/deepseek-v4-quant/scripts/serve_vllm.py
+
+Or in the background:
+    nohup python3 /root/nvidia-meeting/deepseek-v4-quant/scripts/serve_vllm.py \
+        > /root/nvidia-meeting/vllm_serve.log 2>&1 &
+"""
+
+import subprocess
+import sys
+
+MODEL = "/root/nvidia-meeting/DeepSeek-V4-Pro-NVFP4"
+
+# These flags are critical for V4 — do not change without understanding why:
+# --trust-remote-code         V4 needs custom modeling code
+# --kv-cache-dtype fp8        Match our kv_cache_qformat=fp8_cast quantization
+# --block-size 256            V4 recommended block size
+# --enable-expert-parallel    Distribute expert computation across GPUs (critical for 256-expert MoE)
+# --tensor-parallel-size 8    8× B200
+# --compilation-config        CUDA graphs for throughput — FULL_AND_PIECEWISE + all custom ops
+# --attention_config          FP4 indexer cache for V4 MLA attention
+# --moe-backend               deep_gemm_mega_moe — optimized MoE kernel for Blackwell
+# --tokenizer-mode            deepseek_v4 — V4-specific tokenizer
+# --tool-call-parser          deepseek_v4 — native tool calling
+# --enable-auto-tool-choice   Auto tool choice for function calling
+# --reasoning-parser          deepseek_v4 — reasoning/thinking output parsing
+# --speculative_config        MTP speculative decoding (2 speculative tokens)
+
+cmd = [
+    sys.executable, "-m", "vllm.entrypoints.openai.api_server",
+    "--model", MODEL,
+    "--trust-remote-code",
+    "--kv-cache-dtype", "fp8",
+    "--block-size", "256",
+    "--enable-expert-parallel",
+    "--tensor-parallel-size", "8",
+    "--compilation-config", '{"cudagraph_mode":"FULL_AND_PIECEWISE", "custom_ops":["all"]}',
+    "--attention_config.use_fp4_indexer_cache=True",
+    "--moe-backend", "deep_gemm_mega_moe",
+    "--tokenizer-mode", "deepseek_v4",
+    "--tool-call-parser", "deepseek_v4",
+    "--enable-auto-tool-choice",
+    "--reasoning-parser", "deepseek_v4",
+    "--speculative_config", '{"method":"mtp","num_speculative_tokens":2}',
+    "--host", "0.0.0.0",
+    "--port", "8000",
+]
+
+print(f"Starting vLLM server for {MODEL}")
+print(f"Command: {' '.join(cmd)}")
+print(f"Log: /root/nvidia-meeting/vllm_serve.log")
+print()
+
+sys.exit(subprocess.call(cmd))