GitLab

* Add unit tests for fused-novograd

* Fix: tensors should reside on the same device

* Fix: Cudastream should be called on the same device on which the tensors reside on. Found this during debugging fused novograd multi-device unit test

* fixed issues mentioned in the comments

* add device guards to the optimizers

* add untracked file

* set deviceGuard in multi_tensor_apply

* address review comments; fix lamb

* indent

* typo

* move import of amp_C to __init__()

* make fp16/32 separate lists to support mixed param types, disable double test

* make zero_grad consistent between adam/novograd/lamb

FusedSGD now work as before
FusedAdam now work with o1/o2, no longer fuse scaling and casting
Removed special backend handling for FusedAdam
Moved and updated test for FusedAdam into run_optimizers
Removed legacy tests for optimizers.FP16_optimizer and FusedAdam in run_mixed_adam

* Add unittest for FusedAdam.

* Fix some bugs.

* set seed for adam test