This repository provides the singularity mpi containers. These containers are for usage in singularity hybrid-model.
The Open MPI/Singularity workflow in detail:
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The MPI launcher (e.g.,
mpirun,mpiexec) is called by the resource manager or the user directly from a shell. -
Open MPI then calls the process management daemon (ORTED).
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The ORTED process launches the Singularity container requested by the launcher command.
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Singularity instantiates the container and namespace environment.
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Singularity then launches the MPI application within the container.
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The MPI application launches and loads the Open MPI libraries.
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The Open MPI libraries connect back to the ORTED process via the Process Management Interface (PMI).
For more about singularity mpi, please refer to https://sylabs.io/guides/3.5/user-guide/mpi.html.
Singularity build openmpi.simg openmpi-ib.sif
mpirun -np 2 singularity exec openmpi.simg hostname
More MPIs to be added...