On Wed, Jul 29, 2009 at 3:42 PM, Ralph Castain <r...@open-mpi.org> wrote:
> It sounds like perhaps IOF messages aren't getting relayed along the > daemons. Note that the daemon on each node does have to be able to send TCP > messages to all other nodes, not just mpirun. > > Couple of things you can do to check: > > 1. -mca routed direct - this will send all messages direct instead of > across the daemons > > 2. --leave-session-attached - will allow you to see any errors reported by > the daemons, including those from attempting to relay messages > > Ralph > > Ralph, thanks for the quick response. With -mca routed direct it works correctly. With this: mpirun -H 10.1.2.126,10.1.2.122,10.1.2.123,10.1.2.125 --leave-session-attached -np 4 /home/doriad/MPITest/hello-mpi I still get no output nor errors from the daemons. Is there a downside to using 'mca routed direct'? Or should I fix whatever is causing this daemon issue? You have any other tests for me to try to see what's wrong? Thanks, David
