pytorch

dd090e72 - [dist_optim] add distributed functional rprop optimizer (#55834)

[dist_optim] add distributed functional rprop optimizer (#55834) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/55834 ghstack-source-id: 126325536 Reviewed By: rohan-varma Differential Revision: D27703878 fbshipit-source-id: 5c8ec9a4ccb4442b2b51d48d75ea5cd506179f14