* Fix error in ELU backward
* Add --seed flag for testst st
* Add test for BatchNorm eval
* Fix autograd.backward docs
* Support cc flags in cuDNN search
* Fix IndexSelect backward formula
Depending on how PyTorch is compiled, the source code for DataLoader
might not be fully available which can cause a spurious error in
test_dataloader.py
DataLoader now supports the constructor argument 'pin_memory'. When set
to true, tensors in the sample are copied to pinned memory. This happens
in a background thread when num_workers > 1.