Install libpmi2-pmix by entering the following commands in the terminal:
sudo apt update sudo apt install libpmi2-pmix
Description:
OpenMPI implementation of the PMI v2 library
This is the OpenMPI implementation of the Process Management Interface (PMI) API, v2.
Homepage: https://github.com/pmix/pmix
Version: 2.1.1~rc1-1
Section: universe/libs