On Mon, Mar 11, 2019 at 11:51 AM Ralph H Castain <r...@open-mpi.org> wrote:
> You are probably using the ofi mtl - could be psm2 uses loopback method?

according to ompi_info i do in fact have mtl's ofi,psm,psm2.  i
haven't changed any of the defaults, so are you saying order to change
the behaviour i have to run mpirun --mca mtl psm2?  if true, what's
the recourse to not using the ofi mtl?
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