openmpi (pgi)

Version:: 1.10.7 (pgi), 1.10.1 (open64), 4.1.4 (nvhpc), 4.1.5 (intel), 4.0.5 (intel), 1.10.7 (intel), 4.1.5 (gcc), 4.1.4 (gcc), 4.0.5 (gcc), 3.1.6 (gcc), 1.10.7 (gcc)
Category:: mpi
Cluster:: Loki

Author / Distributor

Description

Open MPI for Gig Ethernet and infiniBand using GCC compilers for C/C++, Fortran, and VampirTrace

Documentation

$ mpirun --help

Usage: mpirun [options] [program] [args]

Common options:
  -n, -np <num>       Number of processes
  --host <hostlist>   Comma-separated list of hosts
  --mca <param> <val> Set a specific MCA parameter
  --map-by <type>     Control process mapping (e.g., core, socket)
  --bind-to <type>    Bind processes to resource (e.g., core)

Compiler wrappers:
  mpicc     - C compiler
  mpicxx    - C++ compiler
  mpifort   - Fortran compiler

Full documentation:
  https://www.open-mpi.org/doc/v4.1/

Examples/Usage

List available modules:
```
$ module avail openmpi
```

Load the Open MPI module:

$ module load mpi/OpenMPI/4.1.4-GCC-12.2.0

Check the loaded modules:
```
$ module list
```

Unload the Open MPI module:

$ module unload mpi/OpenMPI/4.1.4-GCC-12.2.0

Access the help information for Open MPI C++ wrapper compiler:
```
$ mpic++ --help
```
Access the help information for the Open MPI information display:
```
$ ompi_info --help
```

Installation

Source code is obtained from Open MPI