Since i upgraded from open-mpi .2.2 to open-mpi 1.2.5 and
had to reinstall my machine aim-plankton (fedora 8 instead of fedora 6)
open-mpi doesn't work correctly anymore:
When i start an application from aim-plankton to run on an other machine,
it seems to hang (no output, not even from debug-daemons).
[jody_at_aim-plankton ~] $ mpirun -np 1 --debug-daemons --host
However, this action causes the creation of an orted process on the
[jody_at_aim-nano1 ~] $ ps ax | grep orted
7680 ? Ss 0:00 /opt/openmpi/bin/orted --bootproxy 1 --name
0.0.1 --num_procs 2 --vpid_start 0 --nodename aim-nano1.uzh.ch
--universe jody_at_[hidden]:default-universe-9422 --nsreplica
7772 pts/0 S+ 0:00 grep --colour=auto orted
The other way round it works without problems
[jody_at_aim-nano1 ~] $ mpirun -np 1 --debug-daemons --host aim-plankton MPITest
Daemon [0,0,1] checking in as pid 9759 on host aim-plankton
[aim-plankton.uzh.ch:09759] [0,0,1] orted: received launch callback
[aim-plankton.uzh.ch]I am #0/1 global
[aim-plankton.uzh.ch:09759] [0,0,1] orted_recv_pls: received message
[aim-plankton.uzh.ch:09759] [0,0,1] orted_recv_pls: received exit
ssh works perfectly in both directions, with or without login.
My open-mpi setup worked well before. What happened since
was an upgrade to open-mpi 1.2.5 on all machines, and
a change from fedora 6 to fedora 8 on aim-plankton, the badly behaving machine.
Does anybody have a suggestion where i should start looking?