Pytorch use CUDA error

Hi,

I use Pytorch for ML with set a Tensor in CUDA.

please see below as the code

if torch.cuda.is_available():
x = x.cuda()
y = y.cuda()
x + y

torch.cuda.is_available is true. But system work slowly and i did not see the result.

i try to check GPU status, its memory usage goes up.

below are my computer hardware and software
OS: ubuntu 16.04
GEFORCE 1060
CUDA8.0

THANKS