title: In a Kaggle kernel while having selected the GPU option when checking torch.cuda.is_available(), it says is not available
body: <p>I created a kernel for a finished Kaggle competition in which i used pytorch. When checking if cuda is available, it returns False.</p>
  
  <p>I checked the GPU option from settings and it says it is on in the bottom bar with resources info. I tried to restart the session without any changes.
  What could be the problem? (cpu only pytorch installed maybe?)</p>