Why doesn't my simple pytorch network work on GPU device?

Question

I built a simple network from a tutorial and I got this error:

RuntimeError: Expected object of type torch.cuda.FloatTensor but found type torch.Flo

Answer 1

import torch
import numpy as np

x = torch.tensor(np.array(1), device='cuda:0')

print(x.device)  # Prints `cpu`

x = torch.tensor(1, device='cuda:0')

print(x.device)  # Prints `cuda:0`

Now the tensor resides on GPU