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多模态大模型 极速部署Wan2.2文生视频模型！SGLang一站式落地教程（含加速优化）

近期阿里开源的Wan2.2系列文生视频模型，凭借MoE混合专家架构、电影级画质、流畅动态画面和720P高清生成…

ValueError: Couldn’t instantiate the backend tokenizer from one of:You need to have sentencepiece or tiktoken installed to convert a slow tokenizer to a fast one.

多模态大模型 ValueError: Couldn’t instantiate the backend tokenizer from one of:You need to have sentencepiece or tiktoken installed to convert a slow tokenizer to a fast one.

报错根因与完整修复方案一、核心报错定位（最关键行） plaintext 直白原因：加载 Wan2.2 文生视…

多模态大模型 vLLM-Omni 完全支持 Wan2.2-TI2V-5B-Diffusers（含 FP8 量化部署）

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多模态大模型 Wan-AI/Wan2.2-TI2V-5B-Diffusers FP8 量化全指南

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多模态大模型 vLLM Omni 24G 显卡只占用约 20G 显存完整原因 + 调参方案

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多模态大模型 vLLM Omni 提示：boundary_ratio 缺失，自动使用默认 0.875

一、日志含义 plaintext 二、参数作用 boundary_ratio 用于长视频生成时，切分上下文窗口…

多模态大模型 RuntimeError: Worker failed with error ‘CUDA driver error: out of memory’, please check the stack trace above for the root cause

日志问题完整分析与解决方案一、根因定位日志末尾核心报错： plaintext 问题场景：Wan2.2 视频…

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一路向北 (APIServer pid=3720) Traceback (most recent call last): (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/bin/vllm", line 8, in (APIServer pid=3720) sys.exit(main()) (APIServer pid=3720) ~~~~^^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/entrypoints/cli/main.py", line 92, in main (APIServer pid=3720) args.dispatch_function(args) (APIServer pid=3720) ~~~~~~~~~~~~~~~~~~~~~~^^^^^^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/entrypoints/cli/serve.py", line 148, in cmd (APIServer pid=3720) uvloop.run(run_server(args)) (APIServer pid=3720) ~~~~~~~~~~^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/uvloop/__init__.py", line 96, in run (APIServer pid=3720) return __asyncio.run( (APIServer pid=3720) ~~~~~~~~~~~~~^ (APIServer pid=3720) wrapper(), (APIServer pid=3720) ^^^^^^^^^^ (APIServer pid=3720) ...... (APIServer pid=3720) **run_kwargs (APIServer pid=3720) ^^^^^^^^^^^^ (APIServer pid=3720) ) (APIServer pid=3720) ^ (APIServer pid=3720) File "/usr/lib/python3.14/asyncio/runners.py", line 204, in run (APIServer pid=3720) return runner.run(main) (APIServer pid=3720) ~~~~~~~~~~^^^^^^ (APIServer pid=3720) File "/usr/lib/python3.14/asyncio/runners.py", line 127, in run (APIServer pid=3720) return self._loop.run_until_complete(task) (APIServer pid=3720) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^ (APIServer pid=3720) File "uvloop/loop.pyx", line 1512, in uvloop.loop.Loop.run_until_complete (APIServer pid=3720) File "uvloop/loop.pyx", line 1505, in uvloop.loop.Loop.run_until_complete (APIServer pid=3720) self.run_forever() (APIServer pid=3720) File "uvloop/loop.pyx", line 1379, in uvloop.loop.Loop.run_forever (APIServer pid=3720) self._run(mode) (APIServer pid=3720) File "uvloop/loop.pyx", line 557, in uvloop.loop.Loop._run (APIServer pid=3720) raise self._last_error (APIServer pid=3720) File "uvloop/loop.pyx", line 476, in uvloop.loop.Loop._on_idle (APIServer pid=3720) handler._run() (APIServer pid=3720) File "uvloop/cbhandles.pyx", line 83, in uvloop.loop.Handle._run (APIServer pid=3720) File "uvloop/cbhandles.pyx", line 63, in uvloop.loop.Handle._run (APIServer pid=3720) callback(*args) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/uvloop/__init__.py", line 48, in wrapper (APIServer pid=3720) return await main (APIServer pid=3720) ^^^^^^^^^^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/entrypoints/openai/api_server.py", line 678, in run_server (APIServer pid=3720) await run_server_worker(listen_address, sock, args, **uvicorn_kwargs) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/entrypoints/openai/api_server.py", line 696, in run_server_worker (APIServer pid=3720) shutdown_task = await build_and_serve( (APIServer pid=3720) ^^^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) engine_client, listen_address, sock, args, **uvicorn_kwargs (APIServer pid=3720) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) ) (APIServer pid=3720) ^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/entrypoints/openai/api_server.py", line 594, in build_and_serve (APIServer pid=3720) await init_app_state(engine_client, app.state, args, supported_tasks) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/entrypoints/openai/api_server.py", line 407, in init_app_state (APIServer pid=3720) await init_generate_state( (APIServer pid=3720) engine_client, state, args, request_logger, supported_tasks (APIServer pid=3720) ) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/entrypoints/openai/generate/api_router.py", line 140, in init_generate_state (APIServer pid=3720) state.openai_serving_chat.warmup() (APIServer pid=3720) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/entrypoints/openai/chat_completion/serving.py", line 181, in warmup (APIServer pid=3720) self.renderer.warmup( (APIServer pid=3720) ~~~~~~~~~~~~~~~~~~~~^ (APIServer pid=3720) ChatParams( (APIServer pid=3720) ^^^^^^^^^^^ (APIServer pid=3720) ...... (APIServer pid=3720) ) (APIServer pid=3720) ^ (APIServer pid=3720) ) (APIServer pid=3720) ^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/renderers/base.py", line 251, in warmup (APIServer pid=3720) self._warmup_mm_processor( (APIServer pid=3720) ~~~~~~~~~~~~~~~~~~~~~~~~~^ (APIServer pid=3720) self.mm_processor, (APIServer pid=3720) ^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) log_prefix="Multi-modal", (APIServer pid=3720) ^^^^^^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) ) (APIServer pid=3720) ^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/renderers/base.py", line 221, in _warmup_mm_processor (APIServer pid=3720) _ = processor.apply(processor_inputs, timing_ctx=TimingContext(enabled=False)) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/multimodal/processing/processor.py", line 1685, in apply (APIServer pid=3720) ) = self._cached_apply_hf_processor(inputs, timing_ctx) (APIServer pid=3720) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/multimodal/processing/processor.py", line 1474, in _cached_apply_hf_processor (APIServer pid=3720) ) = self._apply_hf_processor_main( (APIServer pid=3720) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ (APIServer pid=3720) prompt=inputs.prompt, (APIServer pid=3720) ^^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) ...... (APIServer pid=3720) enable_hf_prompt_update=False, (APIServer pid=3720) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) ) (APIServer pid=3720) ^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/multimodal/processing/processor.py", line 1291, in _apply_hf_processor_main (APIServer pid=3720) mm_processed_data = self._apply_hf_processor_mm_only( (APIServer pid=3720) mm_items=mm_items, (APIServer pid=3720) hf_processor_mm_kwargs=hf_processor_mm_kwargs, (APIServer pid=3720) tokenization_kwargs=tokenization_kwargs, (APIServer pid=3720) ) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/multimodal/processing/processor.py", line 1232, in _apply_hf_processor_mm_only (APIServer pid=3720) _, mm_processed_data, _ = self._apply_hf_processor_text_mm( (APIServer pid=3720) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ (APIServer pid=3720) prompt_text=self.dummy_inputs.get_dummy_text(mm_counts), (APIServer pid=3720) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) ...... (APIServer pid=3720) tokenization_kwargs=tokenization_kwargs, (APIServer pid=3720) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) ) (APIServer pid=3720) ^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/multimodal/processing/processor.py", line 1153, in _apply_hf_processor_text_mm (APIServer pid=3720) processed_data = self._call_hf_processor( (APIServer pid=3720) prompt=prompt_text, (APIServer pid=3720) ...... (APIServer pid=3720) tok_kwargs=tokenization_kwargs, (APIServer pid=3720) ) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/model_executor/models/qwen3_vl.py", line 1265, in _call_hf_processor (APIServer pid=3720) video_outputs = super()._call_hf_processor( (APIServer pid=3720) prompt="", (APIServer pid=3720) ...... (APIServer pid=3720) tok_kwargs=tok_kwargs, (APIServer pid=3720) ) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/multimodal/processing/processor.py", line 1110, in _call_hf_processor (APIServer pid=3720) return self.info.ctx.call_hf_processor( (APIServer pid=3720) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^ (APIServer pid=3720) self.info.get_hf_processor(**mm_kwargs), (APIServer pid=3720) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) dict(text=prompt, **mm_data), (APIServer pid=3720) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) dict(**mm_kwargs, **tok_kwargs), (APIServer pid=3720) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) ) (APIServer pid=3720) ^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/multimodal/processing/context.py", line 269, in call_hf_processor (APIServer pid=3720) output = hf_processor(**data, **allowed_kwargs) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/transformers/processing_utils.py", line 668, in __call__ (APIServer pid=3720) processed_videos, videos_replacements = self._process_videos(videos, **merged_kwargs["videos_kwargs"]) (APIServer pid=3720) ~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/transformers/processing_utils.py", line 770, in _process_videos (APIServer pid=3720) processed_videos = self.video_processor(videos, **kwargs) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/transformers/video_processing_utils.py", line 178, in __call__ (APIServer pid=3720) return self.preprocess(videos, **kwargs) (APIServer pid=3720) ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^ (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/transformers/video_processing_utils.py", line 369, in preprocess (APIServer pid=3720) preprocessed_videos = self._preprocess(videos=videos, **kwargs) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/transformers/models/qwen3_vl/video_processing_qwen3_vl.py", line 223, in _preprocess (APIServer pid=3720) stacked_videos = self.rescale_and_normalize( (APIServer pid=3720) stacked_videos, do_rescale, rescale_factor, do_normalize, image_mean, image_std (APIServer pid=3720) ) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/transformers/image_processing_backends.py", line 346, in rescale_and_normalize (APIServer pid=3720) images = self.normalize(images.to(dtype=torch.float32), image_mean, image_std) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/transformers/image_processing_backends.py", line 300, in normalize (APIServer pid=3720) def normalize( (APIServer pid=3720) (APIServer pid=3720) File "/mnt/c/Users/AI-Space001/venv-vllm/lib/python3.14/site-packages/vllm/entrypoints/openai/api_server.py", line 673, in _interrupt_init (APIServer pid=3720) raise KeyboardInterrupt("terminated") (APIServer pid=3720) KeyboardInterrupt: terminated

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