Interesting.  Haven't hit that one before.  The file has always worked for me.

-Paul Edmon-


On 07/19/2018 10:28 AM, Roger Mason wrote:
Hello Paul,

Paul Edmon <ped...@cfa.harvard.edu> writes:

So the recommendation I've gotten the past is to us option number 4
from this FAQ:

https://www.open-mpi.org/faq/?category=tuning#setting-mca-params

This works for both mpirun and srun in slurm because its a flat file
that is read rather than options that are passed in.
I think that is what I'm doing with this:
If I put the the MCA parameters in ~/.openmpi/mca-params.conf:
btl_tcp_if_include=192.168.0.0/24
but mpirun (apparently) does not access that file when called from
slurm.  It _does_ access the file when called from the command-line.

Thanks,
Roger




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