I have, but I haven't found any user-callable function(s) to get the info listed below in a running MPMD program. I can do this with the PMI interface for the Cray MPICH2 implementation but cannot find anything equivalent for OpenMPI.
________________________________________ From: users-boun...@open-mpi.org [users-boun...@open-mpi.org] on behalf of Gus Correa [g...@ldeo.columbia.edu] Sent: Friday, August 10, 2012 11:00 AM To: Open MPI Users Subject: Re: [OMPI users] User Interface for MPMD On 08/10/2012 11:31 AM, Frank Kampe wrote: > Are there any user level APIs to provide the following information to > a running OpenMPI MPMD program: > > (1) Number of executable instances > > (2) 1st MPI Task rank of each instance > > (3) Number of MPI Tasks per instance > > Thank You > > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users Hi Frank Check 'man mpiexec', the --app file option, maybe also --rankfile. The on process binding at the end may also help. I hope this helps, Gus Correa _______________________________________________ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users
