Re: [ESPResSo] MPI run problem

[İbrahim İnanç]

Hi again,
Thanks for the quick reply I will try it immediately but I also having problem with LAM-MPI.
At my first install, the program was working but I could not distribute the job to many cpus with LAM.
After I tried different commands regarding lam, this error occured.
Is it enough to enter just the "lamboot -v" command to initialize MPI.
I also used the "lamd -n 4 -p 24" command to introduce the node and cpu number to the program..
I am a new user so this can be a very simple problem/question. Sorry for bugging you..
ibrahim inanc

Axel Arnold wrote:

Am Donnerstag, 15. Oktober 2009 15:21 schrieb İbrahim İnanç:
  

Hi,
I installed Espresso but I could not run the job on multiple cpus. The
error message is as below, I also attached config.log file..
The properties of my workstation are: HP DL580-G5 with 4x2.5 Ghz
(HCore), Linux(Centos 5.3) is installed..
I would be very happy if anybody can help me about this issue..
Note: There are those libraries installed many times but still they can
not be reached.
    

The question is not whether the libraries are installed, but whether your 
dynamic linker finds them, which it doesn't. In this case, you need to figure 
out where the library file (liblamf77mpi.so.0) is located, and add that path 
to your LD_LIBRARY_PATH environment variable (in bash, that is "export 
LD_LIBRARY_PATH=<path-to-lib>"). Note that LAM uses a daemon, which needs to 
be restarted after changing the environment variables. Typically, you need to 
run lamboot again.

Axel

  

-bash-3.2$ /usr/local/espresso-2.1.2j/obj-Xeon_64-pc-linux/Espresso_bin:
error while loading shared libraries: liblamf77mpi.so.0: cannot open
shared object file: No such file or directory
/usr/local/espresso-2.1.2j/obj-Xeon_64-pc-linux/Espresso_bin: error
while loading shared libraries: liblamf77mpi.so.0: cannot open shared
object file: No such file or directory
/usr/local/espresso-2.1.2j/obj-Xeon_64-pc-linux/Espresso_bin: error
while loading shared libraries: liblamf77mpi.so.0: cannot open shared
object file: No such file or directory
/usr/local/espresso-2.1.2j/obj-Xeon_64-pc-linux/Espresso_bin: error
while loading shared libraries: liblamf77mpi.so.0: cannot open shared
object file: No such file or directory
---------------------------------------------------------------------------
-- It seems that [at least] one of the processes that was started with
mpirun did not invoke MPI_INIT before quitting (it is possible that more
than one process did not invoke MPI_INIT -- mpirun was only
notified of the first one, which was on node n-2021449922).

mpirun can *only* be used with MPI programs (i.e., programs that
invoke MPI_INIT and MPI_FINALIZE).  You can use the "lamexec" program
to run non-MPI programs over the lambooted nodes.
---------------------------------------------------------------------------
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