torch.Tensor.get_device — PyTorch 2.7 documentation (original) (raw)

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Tensor.get_device() -> Device ordinal (Integer)

For CUDA tensors, this function returns the device ordinal of the GPU on which the tensor resides. For CPU tensors, this function returns -1.

Example:

x = torch.randn(3, 4, 5, device='cuda:0') x.get_device() 0 x.cpu().get_device() -1