Future interface for ATen/Parallel (#21764)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/21764
ghimport-source-id: fca083c09d814a0411020871f49429509fc0e8b5
Test Plan:
Imported from OSS
see https://github.com/pytorch/pytorch/pull/21764
Differential Revision: D15816658
Pulled By: ilia-cher
fbshipit-source-id: 0e25ca6ff66a837d4f69f37a47e59927ab10e216
