Pavel Shamis (Pasha) wrote:
Biagio Lucini wrote:
Hello,
I am new to this list, where I hope to find a solution for a problem
that I have been having for quite a longtime.
I run various versions of openmpi (from 1.1.2 to 1.2.8) on a cluster
with Infiniband interconnects that I use and administer at the same
time. The openfabric stac is OFED-1.2.5, the compilers gcc 4.2 and
Intel. The queue manager is SGE 6.0u8.
Do you use OpenMPI version that is included in OFED ? Did you was able
to run basic OFED/OMPI tests/benchmarks between two nodes ?
Hi,
yes to both questions: the OMPI version is the one that comes with OFED
(1.1.2-1) and the basic tests run fine. For instance, IMB-MPI1 (which is
more than basic, as far as I can see) reports for the last test:
#---------------------------------------------------
# Benchmarking Barrier
# #processes = 6
#---------------------------------------------------
#repetitions t_min[usec] t_max[usec] t_avg[usec]
1000 22.93 22.95 22.94
for the openib,self btl (6 processes, all processes on different nodes)
and
#---------------------------------------------------
# Benchmarking Barrier
# #processes = 6
#---------------------------------------------------
#repetitions t_min[usec] t_max[usec] t_avg[usec]
1000 191.30 191.42 191.34
for the tcp,self btl (same test)
No anomalies for other tests (ping-pong, all-to-all etc.)
Thanks,
Biagio
--
=========================================================
Dr. Biagio Lucini
Department of Physics, Swansea University
Singleton Park, SA2 8PP Swansea (UK)
Tel. +44 (0)1792 602284
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