openmpi with different ssh

[Fabian Braennstroem]

Hi,

I would like to transmit environment variables on a cluster
to all used nodes on a PBS/qsub system, when using openmpi.
Does anyone know, if there is any possibility to do that?
Right now, the environment variables are just transfered to
the first node!?

Regards!
Fabian

[Georg Bisseling]

"mpirun --help" suggests to use the -x option...

[Fabian Braennstroem]

Hi Georg

Post by Georg Bisseling
"mpirun --help" suggests to use the -x option...

Thanks, did not see this... unfortunately it does not seem
to work. The problem might be, that these environment
variables define the path (and a lot more) to the mpirun
directory!
I tried a different approach by running a script, which
defines these variables, with mpirun, e.g.:

mpirun -np 2 script.sh

the script.sh looks like:

export something='alskdj'
binary_file_to_run

But this approach does not work either!?
Would be nice, if someone has an idea!

Regards!
Fabian

[Georg Bisseling]

If a mere

mpirun -x BLABLA ....

does not work, then it might be necessary
to say

export BLABLA
mpirun -x BLABLA

to get the environment variable exported to the mpirun
process in the first place.


Or you can try:

mpirun -x "BLABLA=3D$BLABLA"