lm-sys / lm-sys/FastChat

ValueError: Found modules on cpu/disk. Using Exllama backend requires all the modules to be on GPU.You can deactivate exllama backend by setting `disable_exllama=True` in the quantization config objec

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Description

when trying to load quantized models i always get

ValueError: Found modules on cpu/disk. Using Exllama backend requires all the modules to be on GPU.You can deactivate exllama backend by setting disable_exllama=True in the quantization config objec

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source files, tests, model name, configuration, or reproduction details are provided. Start by reproducing the quantized-model load that raises the Exllama GPU-placement error, then trace the relevant loading and quantization configuration paths. Done should include a confirmed cause and a documented or tested fix for the reported loading failure.

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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
20/100

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