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Mpi fixes

Merged Mpi fixes
mpi_fixes into master
Merged Peter W. Draper requested to merge mpi_fixes into master

Batch jobs on the COSMA4 queue (using intel compiler and MPI) do not run. The main reason is an overrun of the cpuid array because of the number of cores (not a power of 2). This patch attempts to fix that.

Also includes an additional fix for a incorrect size memcpy I discovered.

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  • Pedro Gonnet
    Pedro Gonnet @nnrw56
    Developer

    Thanks for fixing this!

    The whole engine_policy_setaffinity thing is a massive hack, and we should probably look into using something like hwloc to get it right.

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