compiled model state_dict() workaround #639
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Pytorch 2.0 adds
_orig_mod.
prefix to keys of state_dict() of compiled models. For compatibility, we save state_dict() of the original model, which shares the weights without the prefix.I have verified this workaround by resuming model training from a checkpoint created after a few epochs of compiled model training. The behaviors are within the expected randomness from the original trajectory. See also PyTorch forum topic "How to save/load a model with torch.compile".