Eric Thibodeau wrote:
Hello all,
Before I embark on a train that will run out of tracks, I wanted to
get a WFF concerning the spwaning mechanisme in OpenMPI. The intent
is that I would program a "simple" parallel application that would
demonstrate the ability of recent MPI implementations (OpenMPI) to
dynamically ADD or remove processes from the parallel task pool. Of
course, any documentation concerning these new features would also be
greatly appreciated ;)
Open MPI supports spawning new processes as defined in the MPI-2
specification, see e.g.
http://www-unix.mcs.anl.gov/mpi/mpi-standard/mpi-report-2.0/mpi2-report.htm
However, please note, that this does not modify MPI_COMM_WORLD.
MPI_COMM_WORLD is a static communicator which can not be changed, even
in Open MPI...
Thanks
Edgar
