merge feature/anakin-engine to develop#16498

Merged

Shixiaowei02 merged 2 commits intoPaddlePaddle:developfrom

Shixiaowei02:feature/anakin-engine

Apr 1, 2019

Commits on Mar 28, 2019

resolve conflicts with the develop branch test=develop
Shixiaowei02
committed

Commits on Mar 29, 2019

update tensorrt subgraph_util test=develop
Shixiaowei02
committed