Jody,
If you want to forward X connections through ssh, you should NOT set the
DISPLAY variable. ssh will set the proper one for you.
Tim
jody wrote:
Tim
Thank you for your explanation on how OpenMPI uses ssh.
There is a way to force the ssh sessions to stay open. However doing so
will result in a bunch of excess debug output. If you add
"--debug-daemons" to the mpirun command line, the ssh connections should
stay open.
Unfortunately this didn't work either:
[jody]:/mnt/data1/neander:$mpirun -np 4 --debug-daemons --hostfile
testhosts -x DISPLAY=plankton:0.0 xterm -hold -e ../MPITest
Daemon [0,0,1] checking in as pid 19473 on host plankton.unizh.ch
Daemon [0,0,2] checking in as pid 26531 on host nano_00
[plankton.unizh.ch:19473] [0,0,1] orted: received launch callback
[nano_00:26531] [0,0,2] orted: received launch callback
xterm Xt error: Can't open display: plankton:0.0
xterm Xt error: Can't open display: plankton:0.0
xterm Xt error: Can't open display: plankton:0.0
xterm Xt error: Can't open display: plankton:0.0
[plankton.unizh.ch:19473] [0,0,1] orted_recv_pls: received message from [0,0,0]
[plankton.unizh.ch:19473] [0,0,1] orted_recv_pls: received exit
[nano_00:26531] [0,0,2] orted_recv_pls: received message from [0,0,0]
[nano_00:26531] [0,0,2] orted_recv_pls: received exit
If i use ":0.0" instead of "plankton:0.0", at least the local
processes open their X-terms.
Jody
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