pytorch cuda definition

Their syntax varies slightly, but they are equivalent:

⠀	.to(name)	.to(device)	.cuda()
CPU	to('cpu')	to(torch.device('cpu'))	cpu()
Current GPU	to('cuda')	to(torch.device('cuda'))	cuda()
Specific GPU	to('cuda:1')	to(torch.device('cuda:1'))	cuda(device=1)

Note: the current cuda device is 0 by default, but this can be set with torch.cuda.set_device().