pytorch

94cc681f - Revert D28922305: [Reland][DDP] Merge work and future_work in reducer

Revert D28922305: [Reland][DDP] Merge work and future_work in reducer Test Plan: revert-hammer Differential Revision: D28922305 (https://github.com/pytorch/pytorch/commit/3137bbeb1a1f374b133fc97bbc61a05686379b5d) Original commit changeset: 6388a96eda7a fbshipit-source-id: bc150672e857286eeb129ea683b1cfd2034f0564