Concurrent streams in backward conv & disable nan propagation in MaxPoolingCudnn#174

Merged

TakuyaNarihira merged 1 commit intomasterfrom feature/20190624-2stream-conv-bwd

Jul 11, 2019

+117-16

Commits on Jul 8, 2019

2stream conv bwd impl & change non propagation value of CudnnPoiling.
AkioHayakawa-sony
committed