pytorch

04f87f2a - [DataLoader] Fix the world_size when distributed sharding MapDataPipe (#79524)

[DataLoader] Fix the world_size when distributed sharding MapDataPipe (#79524) Fixes #79449 Pull Request resolved: https://github.com/pytorch/pytorch/pull/79524 Approved by: https://github.com/NivekT, https://github.com/VitalyFedyunin