Jetson AGX XAVIER with jetpack 4.6 installs torch and cuda

Hi,

For Xavier, please use JetPack 4.6.x for CUDA 10.2 or JetPack 5.0.x DP for CUDA 11.4.
If python3.8 is preferred, you may try JetPack 5 since it is Ubuntu 20.04 with the default python 3.8.

For the non-supported PyTorch version, you can build it from the source.
The detailed steps can be found in the below topic:

Thanks.