modelscope / modelscope/DiffSynth-Studio
DiffSynth-Studio/examples/wanvideo/model_inference/Wan2.2-Fun-A14B-Control.py 多卡推理出现噪声
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Description
用这个脚本单卡推理时没有问题，多卡推理时后半段会成为噪声，请问这个是什么原因呢，是不是多卡推理时应当增加什么设置，或者是当前脚本还不支持多卡推理？
推理时设置
pipe = WanVideoPipeline.from_pretrained( torch_dtype=torch.bfloat16, device="cuda", use_usp=True, #主要加这个更改 model_configs=[ …… ], )
运行时使用
torchrun --nproc_per_node=2 Wan2.2-Fun-A14B-Control.py
万望解答，不胜感激！
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Research direction
Start with DiffSynth-Studio/examples/wanvideo/model_inference/Wan2.2-Fun-A14B-Control.py and inspect the WanVideoPipeline configuration around use_usp=True. Reproduce the single-GPU and torchrun --nproc_per_node=2 commands, then compare their outputs and trace the multi-GPU inference path. Done means the cause of the noise is identified and multi-card support or its required settings are documented or corrected.
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Assessment
- Tech stack
- python, pytorch
- Domain
- distributed-systems, machine-learning
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100