pytorch

d9c4b3fe - Do rowwisemoments computation in `float` for `half` `LayerNorm` (#66920)

Do rowwisemoments computation in `float` for `half` `LayerNorm` (#66920) Summary: https://github.com/pytorch/pytorch/issues/66707 Pull Request resolved: https://github.com/pytorch/pytorch/pull/66920 Reviewed By: mrshenli Differential Revision: D31850612 Pulled By: ngimel fbshipit-source-id: a95a33567285dcf9ee28d33f503cead3268960f9