pytorch

e54cbb82 - Create PyTorch DDP logging APIs for applications to use (#50637)

Create PyTorch DDP logging APIs for applications to use (#50637) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/50637 add APIs for logging pytorch ddp logging data in applications. Test Plan: unit tests Reviewed By: rohan-varma Differential Revision: D25933411 fbshipit-source-id: 57c248a2f002da06a386fc7406d3e5533ebb9124