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[V0 Deprecation] Remove LLMEngine (#25033)

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Signed-off-by: Woosuk Kwon <woosuk@thinkingmachines.ai>
Signed-off-by: Woosuk Kwon <woosuk.kwon@berkeley.edu>
This commit is contained in:
Woosuk Kwon
2025-09-20 17:56:30 -07:00
committed by GitHub
parent 367a480bd3
commit 52c2a8d4ad
29 changed files with 65 additions and 2763 deletions
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13
tests/models/test_initialization.py
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@@ -7,7 +7,6 @@ from unittest.mock import patch
import pytest
from vllm import LLM
from vllm.engine.llm_engine import LLMEngine as V0LLMEngine
from vllm.utils import GiB_bytes
from vllm.v1.core.kv_cache_utils import get_kv_cache_configs
from vllm.v1.engine.core import EngineCore as V1EngineCore
@@ -61,10 +60,6 @@ def can_initialize(model_arch: str, monkeypatch: pytest.MonkeyPatch,
False))
# Avoid calling model.forward()
def _initialize_kv_caches_v0(self) -> None:
self.cache_config.num_gpu_blocks = 0
self.cache_config.num_cpu_blocks = 0
def _initialize_kv_caches_v1(self, vllm_config):
kv_cache_specs = self.model_executor.get_kv_cache_specs()
scheduler_kv_cache_config = get_kv_cache_configs(
@@ -76,12 +71,12 @@ def can_initialize(model_arch: str, monkeypatch: pytest.MonkeyPatch,
# gpu_blocks (> 0), cpu_blocks, scheduler_kv_cache_config
return 1, 0, scheduler_kv_cache_config
with (patch.object(V0LLMEngine, "_initialize_kv_caches",
_initialize_kv_caches_v0),
patch.object(V1EngineCore, "_initialize_kv_caches",
with (patch.object(V1EngineCore, "_initialize_kv_caches",
_initialize_kv_caches_v1), monkeypatch.context() as m):
if model_info.v0_only:
m.setenv("VLLM_USE_V1", "0")
# NOTE(woosuk): skip the test for V0-only models
return
if model_arch in ("Phi4FlashForCausalLM", "MotifForCausalLM"):
# Phi4FlashForCausalLM and MotifForCausalLM
# only supports DIFFERENTIAL_FLASH_ATTN backend