Thanks for everyone's help. Using the Ohio State tests, qperf and
perfquery I am convinced the IB network is working. The only thing
that still bothers me is I can not get mpirun to use the tcp network.
I tried all combinations of --mca btl to no avail. It is not
important, more just curiosity.
Quoting Michael Di Domenico <mdidomeni...@gmail.com>:
On Thu, Aug 3, 2017 at 10:10 AM, Faraz Hussain <i...@feacluster.com> wrote:
Thanks, I installed the MPI tests from Ohio State. I ran osu_bw and got the
results below. What is confusing is I get the same result if I use tcp or
openib ( by doing --mca btl openib|tcp,self with my mpirun command ). I also
tried changing the environment variable: export OMPI_MCA_btl=tcp,self,sm .
Results are the same regardless of tcp or openib..
And when I do ifconfig -a I still see zero traffic reported for the ib0 and
ib1 network.
if openmpi uses RDMA for the traffic ib0/ib1 will not show traffic,
you have to use perfquery
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