modelscope / modelscope/DiffSynth-Studio
RuntimeError: Input type (CUDAFloat8_e4m3fnType) and weight type (CPUFloat8_e4m3fnType) should be the same
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Description
Error using qwen image edit low vram RuntimeError: Input type (CUDAFloat8_e4m3fnType) and weight type (CPUFloat8_e4m3fnType) should be the same
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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 by reproducing the Qwen image edit low-VRAM path described in the issue and trace where the CUDAFloat8_e4m3fnType input meets the CPUFloat8_e4m3fnType weight. Identify the relevant execution entry point from the traceback, then verify the fix with the same low-VRAM scenario; done means the operation runs without the device/type mismatch.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- machine-learning
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100