If not spawned by mpirun, and not spawned by a resource manager, then it won’t work. There is no way for the procs to wireup.
> On Jul 8, 2016, at 9:42 AM, Supun Kamburugamuve <skamburugam...@gmail.com> > wrote: > > Yes, the processes are not spawned by MPI and they are not spawned by > something like Slurm/PBS. > > How does MPI get to know what processes running in what nodes in a general > sense? Do we need to write some plugin so that it can figure out this > information? I guess this must be the way it is supporting Slurm/PBS etc. > > Thanks, > Supun.. > > On Fri, Jul 8, 2016 at 12:06 PM, Ralph Castain <r...@open-mpi.org > <mailto:r...@open-mpi.org>> wrote: > You mean you didn’t launch those procs via mpirun, yes? If you started them > via some resource manager, then you might just be able to call MPI_Init and > have them wireup. > > > > On Jul 8, 2016, at 8:55 AM, Supun Kamburugamuve <skamburugam...@gmail.com > > <mailto:skamburugam...@gmail.com>> wrote: > > > > Hi, > > > > I have a set of processes running and these are not managed/spawned by Open > > MPI. Is it possible to use Open MPI as a pure communication library among > > these processes? > > > > Thanks, > > Supun.. > > _______________________________________________ > > users mailing list > > us...@open-mpi.org <mailto:us...@open-mpi.org> > > Subscription: https://www.open-mpi.org/mailman/listinfo.cgi/users > > <https://www.open-mpi.org/mailman/listinfo.cgi/users> > > Link to this post: > > http://www.open-mpi.org/community/lists/users/2016/07/29612.php > > <http://www.open-mpi.org/community/lists/users/2016/07/29612.php> > > _______________________________________________ > users mailing list > us...@open-mpi.org <mailto:us...@open-mpi.org> > Subscription: https://www.open-mpi.org/mailman/listinfo.cgi/users > <https://www.open-mpi.org/mailman/listinfo.cgi/users> > Link to this post: > http://www.open-mpi.org/community/lists/users/2016/07/29613.php > <http://www.open-mpi.org/community/lists/users/2016/07/29613.php> > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: https://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2016/07/29614.php
