Changed world_size() to get_world_size() bugfix

[Charlie-Bell]

Edited one line in src/transormers/generation/utils.py. Changed dist.….world_size() to dist.get_world_size() since world_size() doesn't exist in pytorch.dist.

What does this PR do?

Fixes # Pytorch 2 generation/utils.py , 'torch.distributed' has no attribute 'world_size' #22375
#22375

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Library:

• generate: @gante

[HuggingFaceDocBuilderDev]

The documentation is not available anymore as the PR was closed or merged.

[gante]

Seems like a sensible change, but I'm going to defer the review to someone more experience with dist :)

[gante]

BTW, there is a CI error due to this branch being created from an older version of main -- you should rebase with main to make our CI green

[Charlie-Bell]

BTW, there is a CI error due to this branch being created from an older version of main -- you should rebase with main to make our CI green

Funny, GitHub is telling me that "This branch is 1 commit ahead of huggingface:main." and also tells me the fork is already synced when I try syncing.
Also when I fetch upstream and rebase as in the contribution guidlines I am told "Current branch changed-world-size-to-get-world-size-in-generation-utils is up to date."

Maybe I missed something, but it seems the only difference in codebase is the 1 line change. Maybe it's worth it to re-run the ci/circleci: tests_torch_and_tf?

[gante]

@Charlie-Bell my apologies, there is indeed a problem in main I've found after writing the comment above! #22383 will fix it -- apologies for the confusion 🙏

[sgugger]

Yes, that's the correct fix. Thanks a lot!