Hi all, In Rocks-5.0 cluster, OpenMPI-1.2.6 comes by default. I guess it gets installed through rpm.
# /opt/openmpi/bin/ompi_info | grep gridengine MCA ras: gridengine (MCA v1.0, API v1.3, Component v1.2.6) MCA pls: gridengine (MCA v1.0, API v1.3, Component v1.2.6) Now I've to install OpenMPI-1.2.7. The "./configure --help | grep gridengine" - doesn't show anything. In such scenario how OpenMPI-1.2.7 can be integrated to SGE? After achieving this integration: 1. Is it possible to use -machinefile option in the SGE script? Eg: #$ -pe orte 4 /opt/openmpi/bin/mpirun -machinefile $TMPDIR/machines -np 4 <executable> 2. If "qstat -f" is showing 2 slots on node1 and 2 slots on node2 for a 4 process openmpi job, then will these processes run exactly on those nodes? # qconf -sp orte pe_name orte slots 999 user_lists NONE xuser_lists NONE start_proc_args /bin/true stop_proc_args /bin/true allocation_rule $fill_up control_slaves TRUE job_is_first_task FALSE urgency_slots min Thank you, Sangamesh Consultant - HPC