Check if pytorch cuda is avalable (AssertionError: Torch not compiled with CUDA enabled)

[zdenop]

Please use pytorch as shown in docs, otherwise users can get AssertionError: Torch not compiled with CUDA enabled.

E.g. in app-seperation-semseg/Background-Grayscale.py

if torch.cuda.is_available():
    device = 'cuda'
else:
    device = 'cpu'

segment(dlab, './images/greyscale/oldman.png', show_orig=False, dev=device)

[maddhatters-dev]

The problem I ran into was, after compiling the files they were scattered, I found a couple folders in my user dir and others in the programs and programs 32. Also I had to move the protoc and test files into the lib folder, for some reason they were not connecting till I did that. After moving the files I hit test it ran right through all of them.