Pelegant and MPI:

Pelegant works with two versions of MPI: MPICH and Open MPI. It is included with the elegant distribution for each supported operating system. The binary release of Pelegant for Linux is built against the default system MPI library. The binary release for macOS is built against the latest MacPorts version of MPICH. The binary release for Windows is built against the latest Microsoft MPI.

Custom MPI versions can be used on Linux by downloading and running Build-AOP-RPMs. This script allows linking against your custom MPI installation.

Running Pelegant:

Detailed information about running jobs with MPICH can be found in the MPICH User's Guide.