Ge v1 (#52136)
Summary:
This is a second attempt to use graph executor to run forward on a gradient. This allows a secondary chance to profile intermediate tensor introduced by autodiff.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/52136
Reviewed By: pbelevich
Differential Revision: D26693978
Pulled By: Krovatkin
fbshipit-source-id: 91dde8009a210950af8e5173668ada241e16dd52
