Using Smart pointer to optimizer memory usage of dyGraph#17768

Merged

JiabinYang merged 5 commits intoPaddlePaddle:developfrom

JiabinYang:feature/share_ptr_for_dygraph

Jun 4, 2019

Commits on May 31, 2019

for debug
JiabinYang
committed

Commits on Jun 2, 2019

Commits on Jun 3, 2019