pytorch

05523268 - add gloo scatter support on GPU (#14917)

add gloo scatter support on GPU (#14917) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/14917 as titled Reviewed By: pietern Differential Revision: D13271560 fbshipit-source-id: 0187a3390f8ebd72a2c074e7a651432159d427c0