ParaStation MPI is an MPIch based implementation of the Message-Passing Interface (MPI) Standard.
copied from cf-post-staging / psmpiParaStation MPI relies on a low-level communication layer called pscom and provides full MPI-4 compliance.
Since it is configured with the Process Management Interface for Exascale (PMIx), an external job launcher is required to run MPI jobs. Typically, in high-performance computing environments using the Slurm Workload Manager, applications would be executed with:
srun --mpi=pmix mpi_application