On Jun 5, 2007, at 10:27 AM, Prakash Velayutham wrote:
I know. I could not start another client code before this. So just wanted to check if /bin/hostname works with the spawn.
It will not. MPI_COMM_SPAWN assumes that you are spawning an MPI application and therefore after the process is launched, it tries to do MPI-level coordination with it to setup new communicators, etc. FWIW: MPI-2 says that you are *only* allowed to launch MPI processes through MPI_COMM_SPAWN[_MULTIPLE].
This could well be the error that you are seeing (I haven't tried it myself to see what would happen).
-- Jeff Squyres Cisco Systems
