Scyld Beowulf, mpirun, and pg files
newt at scyld.com
Mon Nov 13 20:03:31 EST 2000
On Mon, 13 Nov 2000, Rob Ostrander wrote:
> I picked up a preview release of Scyld Beowulf at SC2000. It's really
> excellent! I had a *spare parts* cluster up and running in just under 3
> hours... I Then started messing around with BeoMpi. Their demos worked
> fine, however I cannot seem to convince mpirun to use a process group (pg)
> file. Has anyone tried or had any luck using BeoMpi's mpirun with a pg
> file? Our app. RTExpress explicitly maps processes to hosts using a pg
> file, and I'd like to get it to work on this Scyld Beowulf cluster. Any
> help would be appreciated.
Thanks for trying our preview disc. We're working busily to address
the feedback we recieve.
The preview mpirun doesn't really do this -- although you could
manually supply the -p4pg option to your MPI program.
Another thing you can do is revert to the mpich mpirun script
(which is in /usr/mpi-beowulf/bin) which ought to do something for
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