Add channel wise in quant pass.#16341

Merged

wzzju merged 2 commits intoPaddlePaddle:developfrom

wzzju:add_channel_wise_in_quant_pass

Mar 22, 2019

Commits on Mar 19, 2019

add channel wise quantization in ir pass.
wzzju
committed

Commits on Mar 21, 2019

rewrite the cuda kernels of channel_wise_quant_op and channe_wise_dequant_op. test=develop
wzzju
committed