Lightning-AI / Lightning-AI/litgpt
AssertionError: Rank 2 has different values for step: 49996.0 Other ranks: 49991.0
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- Dominant language
- Python
- Stars
- 13.7k
- Forks
- 1.5k
- Avg merge
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Description
hi, when I using fuc save_checkpoint, an error occured:
``` AssertionError: Rank 2 has different values for step: 49996.0 Other ranks: 49991.0```
Is there any solution?
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
The report only identifies save_checkpoint and a rank-step assertion; no file or test is named. Start by reproducing the checkpoint save with the same multi-rank setup and inspect how step values differ across ranks. Done means the cause is documented or the save completes without the assertion, with a regression test if the project provides one.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- ai, distributed-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100