Hi, I installed OpenMPI on our small XE6 using the configure options under /contrib directory. It appears it is working fine, but it ignores MCA parameters (set in env var). So I switched to mpirun (in OpenMPI) and it can handle MCA parameters somehow. However, mpirun fails to allocate process by cores. For example, I allocated 32 cores (on 2 nodes) by "qsub –lmppwidth=32 –lmppnppn=16", mpirun recognizes it as 2 slots. Is it possible to mpirun to handle mluticore nodes of XE6 properly or is there any options to handle MCA parameters for aprun?
Regards, ----------------------------------------------------------------------------- Keita Teranishi Principal Member of Technical Staff Scalable Modeling and Analysis Systems Sandia National Laboratories Livermore, CA 94551 +1 (925) 294-3738
