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
Check 'man mpiexec', the --app file option, maybe also --rankfile.
The on process binding at the end may also help.
I hope this helps,