pytorch

7ecfaef7 - CUDA BFloat16 layernorm (#45002)

CUDA BFloat16 layernorm (#45002) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/45002 Reviewed By: mruberry Differential Revision: D23800931 Pulled By: ngimel fbshipit-source-id: cc213d02352907a3e945cd9fffd1de29e355a16c