How to build libtorch on jetsonTX2?

[tianhuxiaozi]

I have install torch1.0.0 and torchvision0.2.2 .my jetpack is V4.3.Now I can not use libtorch.so. What can I do?

[AastaLLL]

Hi,

May I know how do you install torch for TX2 first?
Do you follow this tutorial:

PyTorch for Jetson

Below are pre-built PyTorch pip wheel installers for Jetson Nano, TX1/TX2, Xavier, and Orin with JetPack 4.2 and newer. Download one of the PyTorch binaries from below for your version of JetPack, and see the installation instructions to run on your Jetson. These pip wheels are built for ARM aarch64 architecture, so run these commands on your Jetson (not on a host PC). You can also use the pre-built l4t-pytorch and l4t-ml container images and Dockerfiles. PyTorch pip wheels JetPack 5

PyTo…

We can find libtorch.so located at /usr/local/lib/python3.6/dist-packages/torch/lib/ after installing the library above.

Another possible issue is that you may install the pyTorch built on different CUDA/GPU version.
For JetPack4.3, please install this package

PyTorch v1.0.0

• JetPack 4.2 / 4.3
  • Python 2.7 - torch-1.0.0a0+bb15580-cp27-cp27mu-linux_aarch64.whl
  • Python 3.6 - torch-1.0.0a0+bb15580-cp36-cp36m-linux_aarch64.whl

Thanks.

[mheriyanto]

Thanks @AastaLLL for giving alternative solution. It’s new insight for me and It’s work for me.