tree 2a0746d582f084763cc1d56ea65c47d34f3b5c1c
parent e3609a06193e114432e61437260dc7fa89ed31a6
author Alisson Gusatti Azzolini <azzolini@fb.com> 1506316210 -0700
committer Facebook Github Bot <facebook-github-bot@users.noreply.github.com> 1506316697 -0700

GatherByKeyOp (Inverse operation of PartitionOp)

Summary: Can be used to gather outputs of a sharded "Gather", or for the SparseLengthsSumGradient when we need the gradient on values.

Reviewed By: akyrola

Differential Revision: D5800901

fbshipit-source-id: 90835755d6d15be13fb0f538cfade980cf4a1cd2