pytorch

6c81b4d9 - [dist_optim] add distributed functional Adadelta optimizer (#50623)

[dist_optim] add distributed functional Adadelta optimizer (#50623) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/50623 Add TorchScript compatible Adadelta functional optimizer to distributed optimizer Test Plan: Imported from OSS Reviewed By: rohan-varma Differential Revision: D25932772 Pulled By: wanchaol fbshipit-source-id: d59b04e5f0b6bab7e0d1c5f68e66249a65958e0b