tldr/pages/common/mpirun.md

mpirun

Execute serial and parallel jobs in Open MPI. See also: mpic++. More information: https://docs.open-mpi.org/en/main/man-openmpi/man1/mpirun.1.html.

• Execute an Open MPI program:

mpirun {{path/to/executable}}

• Execute an Open MPI program with n parallel processes:

mpirun -n {{n}} {{path/to/executable}}

• Allow more processes than available physical cores:

mpirun -oversubscribe {{path/to/executable}}