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Advanced MPI scheduling: Difference between revisions
→Controlling the distribution of processes
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=== Controlling the distribution of processes === | === Controlling the distribution of processes === | ||
The basic MPI job shown at [[Running jobs]] is suitable for the majority of users, those who simply want their calculations to start running at the earliest opportunity. | |||
However, you may wish to investigate how the performance of your MPI application is affected when the processes are distributed in different ways, or you may know from such an investigation that it performs best under certain constraints. For especially demanding applications this can extend to the level of not just nodes, but sockets, cores, and threads. See SchedMD's page on [https://slurm.schedmd.com/mc_support.html multicore support] for detailed information about process placement with SLURM. | |||
=== Hybrid jobs: MPI and OpenMP, or MPI and threads === | === Hybrid jobs: MPI and OpenMP, or MPI and threads === | ||