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OpenMP spawns multiple threads, which are children of the MPI processes. Therefore, the default core binding option of mprirun/mpiexec, which is _\--bind-to-core_  must be changed to _\--bind-to-socket \--by-socket_.
OpenMP spawns multiple threads, which are children of the MPI processes. Therefore, the default core binding option of mprirun/mpiexec, which is _\--bind-to-core_  must be changed to _\--bind-to-socket \--by-socket_, in order for the OpenMP threads to be able to run on all cores of the node.
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