Built-in launchers

Row includes built-in support for MPI, OpenMP, and Rayon via the launchers "mpi", "openmp", and "rayon". These have been tested on the built-in clusters. You may need to add new configurations for your specific cluster or adjust the none launcher to match your system. Execute row show launchers to see the current launcher configuration.

OpenMP

Set launchers = ["openmp"] to prefix the action's command with:

OMP_NUM_THREADS={T}

where {T} is the number of threads_per_process requested.

Rayon

Set launchers = ["rayon"] to prefix the action's command with:

RAYON_NUM_THREADS={T}

where {T} is the number of threads_per_process requested.

Hybrid OpenMP/MPI

When using OpenMP/MPI hybrid applications, place "openmp" first in the list of launchers (launchers = ["openmp", "mpi"]) to generate the appropriate command:

OMP_NUM_THREADS={T} srun --ntasks=N --cpus-per-task=T command $directory

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