Lightning-AI / Lightning-AI/litgpt
UserWarning: The file size of checkpoints/microsoft/phi-4/lit_model.pth is over 4.2 GB.
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Description
LitGPT compatible checkpoint is not loading the model because the converted Lit model file exceeds the size limit of 4.2 GB. How can this limit be removed or increased?
` warnings.warn(
zsh: killed ./litgpt chat microsoft/phi-4`
Contributor guide
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 reported ./litgpt chat microsoft/phi-4 command and the checkpoint-loading warning. Trace where the 4.2 GB limit is enforced; done means establishing a supported way to load the over-limit checkpoint or clearly documenting why it cannot be increased.
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
- 25/100