On Nov 8, 2006, at 8:06 AM, shane kennedy wrote:
i've run my mm5 weather modeling app over mpich gig-e & myrinet, & open-mpi gig-e. when i tried open-mpi over myrinet, i was able to compile & run w/o issue, but i get no net traffic over the myrinet switch. the job cranks up the cpu's but never completes. i'm using the myrinet MX driver. i have the myrinet libs set in both LD_LIBRARY_PATH & the ld.so.conf file. any advice/suggestions would be greatly appreciated. i've listed my compile options below:
Did you build the MX driver? Unless MX is in one of the compiler search paths, you'll likely need to add the configure argument --with- mx=<PATH TO MX> when building Open MPI. You can determine whether you have MX support in your current Open MPI build by running the "ompi_info" command. If you see a line that includes btl: mx, then you have MX support and something else is going on. Otherwise, the issue is building MX support into your copy of Open MPI.
Hope this helps, Brian -- Brian Barrett Open MPI Team, CCS-1 Los Alamos National Laboratory
