[release/0.2] fix auto-parallel#643

ShigureNyako wants to merge 1 commit intoPaddlePaddle:release/0.2PaddlePaddle/PaddleFleet:release/0.2from

ShigureNyako:cherry-pick/587/release/0.2ShigureNyako/PaddleFleet:cherry-pick/587/release/0.2Copy head branch name to clipboard