🍡 Fix using reward model and DeepSpeed ZeRO 3 #3326
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
qgallouedec
changed the title
qgallouedec
commented
Apr 18, 2025
Comment on lines
+425
to
+434
| self.reward_func_names = [] | ||
| for i, reward_func in enumerate(reward_funcs): | ||
| if isinstance(reward_func, str): | ||
| reward_funcs[i] = AutoModelForSequenceClassification.from_pretrained( | ||
| reward_func, num_labels=1, **model_init_kwargs | ||
| ) | ||
| if isinstance(reward_funcs[i], nn.Module): # Use Module over PretrainedModel for compat w/ compiled models | ||
| self.reward_func_names.append(reward_funcs[i].config._name_or_path.split("/")[-1]) | ||
| else: | ||
| self.reward_func_names.append(reward_funcs[i].__name__) |
There was a problem hiding this comment.
We need to get the reward name before it's wrapped with deepspeed.
qgallouedec
commented
Apr 18, 2025
Comment on lines
+658
to
+661
| if self.is_deepspeed_enabled: | ||
| self.reward_funcs[i] = prepare_deepspeed(reward_func, self.accelerator) | ||
| else: | ||
| self.reward_funcs[i] = self.accelerator.prepare_model(reward_func, evaluation_mode=True) |
There was a problem hiding this comment.
This fixes this issue
|
The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update. |
shirinyamani
approved these changes
Apr 23, 2025
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Fixes #3202
Before this PR, running this with ZeRO3 would fail: