Jetson Orin Nx, Pytorch 2.1.2 on Jetpack 6.0 DP, torch.cuda.is_available() is false

@cho56915 these wheels from website were not built with CUDA enabled, they are for general ARM64 platform without GPU. Instead, please build torchvision from source following the torchvision instructions under the Installation section of this topic:

Or you can use this container which already has it:

That has PyTorch/torchvision/torchaudio/ect already installed, and the compiled wheels are saved under /opt inside the container if you want to copy them out.