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= Commands and FAQ about mpirun =
See oracles page on mpirunand the manual openmpi: # https://docs.oracle.com/cd/E19923-01/820-6793-10/ExecutingPrograms.html# http://www.open-mpi.org/doc/v1.4/man1/mpirun.1.php
For a simple SPMD (Single Process, Multiple Data) job, the typical syntax is:
<source lang="bash">
mpirun -np x program-name
</source>
== assign two mpi processes per core ==
http://stackoverflow.com/questions/11749182/assign-two-mpi-processes-per-core
<source lang="bash">
sudo yum install hwloc
</source>
Then run
<source lang="bash">
hwloc-ls
</source>