Great, that worked, thanks! However, it still concerns me that the
FAQ page says that mpirun will execute .profile which doesn't seem to
work for me. Are there any configuration issues that could possibly
be preventing mpirun from doing this? It would certainly be more
convenient if I could maintain my environment in a single .profile
file instead of adding what could potentially be a lot of -x
arguments to my mpirun command.
Hahn
On Oct 6, 2008, at 5:44 PM, Aurélien Bouteiller wrote:
tYou can forward your local env with mpirun -x LD_LIBRARY_PATH. As an
alternative you can set specific values with mpirun -x
LD_LIBRARY_PATH=/some/where:/some/where/else . More information with
mpirun --help (or man mpirun).
Aurelien
Le 6 oct. 08 à 16:06, Hahn Kim a écrit :
Hi,
I'm having difficulty launching an Open MPI job onto a machine that
is running the Bourne shell.
Here's my basic setup. I have two machines, one is an x86-based
machine running bash and the other is a Cell-based machine running
Bourne shell. I'm running mpirun from the x86 machine, which
launches a C++ MPI application onto the Cell machine. I get the
following error:
error while loading shared libraries: libstdc++.so.6: cannot open
shared object file: No such file or directory
The basic problem is that LD_LIBRARY_PATH needs to be set to the
directory that contains libstdc++.so.6 for the Cell. I set the
following line in .profile:
export LD_LIBRARY_PATH=/opt/cell/toolchain/lib/gcc/ppu/4.1.1/32
which is the path to the PPC libraries for Cell.
Now if I log directly into the Cell machine and run the program
directly from the command line, I don't get the above error. But
mpirun still fails, even after setting LD_LIBRARY_PATH in .profile.
As a sanity check, I did the following. I ran the following command
from the x86 machine:
mpirun -np 1 --host cab0 env
which, among others things, shows me the following value:
LD_LIBRARY_PATH=/tools/openmpi-1.2.5/lib:
If I log into the Cell machine and run env directly from the command
line, I get the following value:
LD_LIBRARY_PATH=/opt/cell/toolchain/lib/gcc/ppu/4.1.1/32
So it appears that .profile gets sourced when I log in but not when
mpirun runs.
However, according to the OpenMPI FAQ (http://www.open-mpi.org/
faq/?category=running#adding-ompi-to-path
), mpirun is supposed to directly call .profile since Bourne shell
doesn't automatically call it for non-interactive shells.
Does anyone have any insight as to why my environment isn't being
set properly? Thanks!
Hahn
--
Hahn Kim, h...@ll.mit.edu
MIT Lincoln Laboratory
244 Wood St., Lexington, MA 02420
Tel: 781-981-0940, Fax: 781-981-5255
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* Dr. Aurélien Bouteiller
* Sr. Research Associate at Innovative Computing Laboratory
* University of Tennessee
* 1122 Volunteer Boulevard, suite 350
* Knoxville, TN 37996
* 865 974 6321
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Hahn Kim
MIT Lincoln Laboratory Phone: (781) 981-0940
244 Wood Street, S2-252 Fax: (781) 981-5255
Lexington, MA 02420 E-mail: h...@ll.mit.edu
