fix distribute transpiler GRPC error code 4, RPC Deadline#18984

Merged

seiriosPlus merged 5 commits intoPaddlePaddle:developfrom

seiriosPlus:sync_mode_fix

Aug 26, 2019

Commits on Jul 30, 2019

fix sync mode hang in transpiler, test=develop
seiriosPlus
committed

Commits on Jul 31, 2019

fix sync mode hang in transpiler, test=develop
seiriosPlus
committed

Commits on Aug 7, 2019

fix outs in recv op, test=develop
seiriosPlus
committed

Commits on Aug 22, 2019