[petsc-users] Setting thread affinities for multiple MPI tasks per node

[John Mousel]

If I want to use threading but launch multiple MPI processes per node is
there a way to control the affinities on each socket of the node? I see
-threadcomm_affinities, but the documentation is sparse and it's hard for
me to see how a single list of core labels gets the job done for multiple
MPI processes when the core labels are different on the different sockets.

John
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