Posted by – January 26, 2009
If you are having trouble getting OpenMPI on Linux to work via a Mellanox Infiniband fabric, than this thread may be of interest to you.
Long story short, you may need to set this parameter in your execd environment in order to avoid memory issues:
Thanks to Ron for pointing these links out again.
Back in March, Sun announced its membership in the OpenMPI community. A side effect of this effort is that OpenMPI and Grid Engine interoperability will get serious high level attention. Ron also provides a link to a Sun HPC presentation PDF where there is explicit mention of creating an “SGE Plugin for ORTE” — the Open Run Time Environment within the OpenMPI distribution.
If this makes rolling out a tightly integrated Grid Engine / MPI Parallel Environment (PE) a bit easier then everybody wins.