On 28-gen-10, at 12:35, Jeff Squyres (jsquyres) wrote:
What was blacs compiled against, lam or ompi?
What is your LD_LIBRARY_PATH set to?
Are you ensuring to use ompi's mpirun (vs, for example, lam's mpirun)
yes everything was ok, I had tried everything I could think of, rpath,
--prefix,... everything and was really getting mad.
I spent an inordinate amount of time on this, and now that I realized
what it was I just want to hit myself.
On that machine someone just installed all the blacs and scalapack
tests in /usr/bin.
I was doing
mpirun -np 8 xFbtest_MPI-LINUX-0
instead of
mpirun -np 8 ./xFbtest_MPI-LINUX-0
so mpirun was using the version in /usr/bin but
mpirun -np 1 env
mpirun -np 1 ldd xFbtest_MPI-LINUX-0
and so on did return correct things.
As initially I tested only the blacs and scalapack things it took me a
long time to figure out.
Yesterday before posting I tested the ompi examples and to my surprise
they did work.
Probably those time that it worked I had typed ./ without really
realizing it.
Anyway sorry for the noise, a really stupid mistake that had nothing
to do with ompi
ciao
Fawzi
-jms
Sent from my PDA. No type good.
----- Original Message -----
From: users-boun...@open-mpi.org <users-boun...@open-mpi.org>
To: us...@open-mpi.org <us...@open-mpi.org>
Sent: Wed Jan 27 21:11:21 2010
Subject: [OMPI users] mpirun links wrong library with BLACS tester
I have installed openmpi 1.4.1 locally for one user on a cluster,
where some other mpi were installed.
when I try to run an executable through mpirun (I am running the BLACS
tester) I get
xFbtest_MPI-LINUX-0: error while loading shared libraries: liblam.so.
0: cannot open shared object file: No such file or directory
if I run the executable it works
ldd always shows the correct libraries (even when run in mpirun) and
no liblam
also the environment looks normal in both cases (both PATH and
LD_RUN_PATH have the installation as first path).
I did try to set -rpath to */lib and */lib/openmpi, and generally
reduce the environment to a basic one, and use that in all the shells
both when compiling and running, but to no avail.
The examples in the openmpi directory seem to work without problems.
I did manage to run the blacs tester, but in no reproducible way (I
really don't know what I did to make it work and it stopped working
really fast (the same binary)).
The same setup works in another machine (and I think BLACS flags are
ok)
I am getting really crazy, any pointer at what else I could try would
be greatly appreciated.
gcc (GCC) 4.1.2 20071124 (Red Hat 4.1.2-42)
G95 (GCC 4.0.3 (g95 0.92!) Jun 24 2009)
thanks
Fawzi
