Libopenmpi-dev: Depends:libiverbs-dev- Broken packages error while installing Pytorch v2.1.0

[nagesh_accord]

Hi,
I am getting below error, when installing Pytorch v2.1.0 on Jetson AGX Xavier Industrial on Linux-For-Tegra 35.4.1 on my customized carrier board.

This error occurs when executing the command:

 sudo apt-get install python-pip cmake libopenblas-dev libopenmpi-dev 

from the below link:

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 containers from jetson-containers. PyTorch pip wheels JetPack 6 ▶ PyTorch v2.3.0 ▶ PyTorch v2.2.0 ▶ PyT…

Pls let us know how to resolve this error, thanks.

[AastaLLL]

Hi,

Could you check the document below to see if the steps can work?

Installing PyTorch for Jetson Platform - NVIDIA Docs

Thanks.

[nagesh_accord]

@AastaLLL

Could you check the document below to see if the steps can work?

This has steps with already prebuilt pytorch whl file for python 3.8.

But my requirement is pytorch has to be built on python 3.9, thats why I am building from sources as per the link I shared.

Note: before this i have installed cmake 3.22.0 by the steps provided by you earlier in the below link:

Remote branch 2.1.0 not found in upstream error while installing Pytorch 2.1.0 for Python version 3.9 from Build Source

Hi, cmake can be installed with the below command: $ sudo apt-get install -y protobuf-compiler libprotobuf-dev openssl libssl-dev libcurl4-openssl-dev $ wget https://github.com/Kitware/CMake/releases/download/v3.22.0/cmake-3.22.0.tar.gz $ tar xvf cmake-3.22.0.tar.gz $ cd cmake-3.22.0/ $ ./bootstrap --system-curl $ make -j$(nproc) $ sudo make install Do you build the python3.9 on your own? Or download it from the web? Thanks.

[AastaLLL]

Hi,

Do you try to build it inside the container?
If so, could you try it on the device natively?

Thanks.

[nagesh_accord]

@AastaLLL

Do you try to build it inside the container?

Could provide the link for the steps to be followed for this for python 3.9.

Thanks.

[AastaLLL]

Hi,

The building steps should be the same inside or outside the container.
Thanks.

[nagesh_accord]

Solution:

this error did not occur when tried the steps second time from scratch.

only thing is for changing the python3 softlink from python3.8 to python3.9, I used the below steps:

$sudo ls /usr/bin/python*
$sudo rm /usr/bin/python3
$sudo ln -s /usr/bin/python3.9 /usr/bin/python3

instead of update-alternatives method;