modelscope / modelscope/DiffSynth-Studio
Qwen-Image-Edit FP8 inference without CPU offloading
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Description
Description:
Hi, thanks for the great work!
I’d like to use the FP8 version without offloading to CPU. The CPU→GPU transfer takes too long for my use case.
I’ve tried different combinations based on the example code here:
example code
However, I can’t seem to skip the overhead caused by this line:
link to code
Could you briefly explain how FP8 works during model inference, and whether it’s possible to run FP8 fully on GPU without offloading?
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with examples/qwen_image/model_inference_low_vram/Qwen-Image-Edit.py and diffsynth/pipelines/qwen_image.py around line 426, then trace the FP8 inference and CPU-offloading path. Determine whether the existing implementation supports fully GPU-resident inference and document the behavior; if a code change is needed, define its scope first.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- machine-learning
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100