open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello,

I just installed TELEMAC on a new Win7 x64 machine. I installed MPICH2 ver 1.4.1p1.
When launching the "malpasset" test model with 1 proc --> it's ok. But when going on parallel (say two proc.) I have the following message @the end :

****************************************************************************
Starting execution: telemac2d.bat
________________________________________________________
- FICHIER FORTRAN : princi.f
______________________________________________________________________________
*** EXECUTABLE LOCAL ***

princi_win64_MP_v6p1.exe

______________________________________________________________________________
*** ACQUISITION DES FICHIERS ***

- FICHIER DES PARAMETRES : cas.txt

- DICTIONNAIRE : telemac2dv6p1.dico

- FICHIER DE GEOMETRIE : geo
(partitionne pour 2 processeurs)
- FICHIER DES CONDITIONS AUX LIMITES : cli.txt

(partitionne pour 2 processeurs)
- FICHIER DE REFERENCE : ref
(partitionne pour 2 processeurs)
______________________________________________________________________________
*** MACHINE MPI ***
Machine MPI ok (avec 2 processeurs).
______________________________________________________________________________
*** EXECUTION ***

lancement MPI : mpiexec -file mpirun.txt
launch failed: CreateProcess(c:\malpasset\c:\malpasset\cas.txt6060_tmp\out6060_w
in64.exe) on 'Calcul1' failed, error 2 - The system cannot find the file specifi
ed.

launch failed: CreateProcess(c:\malpasset\c:\malpasset\cas.txt6060_tmp\out6060_w
in64.exe) on 'Calcul1' failed, error 2 - The system cannot find the file specifi
ed.

Duree du calcul : 0 secondes ( 0:0:0 ) (systeme=0.015 sec)
______________________________________________________________________________
*** RESTITUTION DES FICHIERS ***

- FICHIER DES RESULTATS : res
ERREUR A LA RESTITUTION DU FICHIER res
________________________________________________________
Execution terminee: telemac2d.bat
________________________________________________________
No compilation/linking/file errors detected.
No execution errors detected.
Returning exit status 0

=========================================================
Telemac System 5.6 to 6.1 - Perl scripts version 6.1
=========================================================
...stopping.

******************************************************************

As you can see, the main path is written twice in mpirun.txt!
Any clue ?

Aissa

Hi Issa

I think that you have a problem with the path, because if you see the error message you can see clearly that "c:\malpasset\c:\malpasset\" is not a valid path. Thus MPI is not able to generate/use files that he needs.
I'm not able to help you more, I hope that Fabien or Christophe, will give further and deeper help.

With my best regards,
Riadh Ata

Indeed, I have a path pb. I copied the "malpasset" folder in the C:\ to check if I have the same pb again. I verified all the system variables without success.
Thank you for the message.

Aissa

Hello Aissa
MPI configuration and run is sometimes quite boring on windows computer.
It's also not easy to give you a solution but you could check the following points:
- have a look into the mpirun.txt file
- use the -t option to let the temporary directory
- in the temp directory, try to launch manually the mpi process with the command mpiexec <parameters>

for the last point, you could try without using the mpirun.txt file. you could give all the parameters in the command line. (use mpiexec --help to have the full list of options).

Hope this helps

Best wishes

HI Christophe,

Nice to hear from you, it's been a long time.
I'll give your hints a try and I'll be back.

Thank you guys, you're doing a great job

Aissa

Hello again,

I finally found the solution. I was running the model in a network instead of running it locally. A simple line modification in systel.ini and voila !

**************************************************************************
#- PC multiprocesseurs
RUN_MPI="mpiexec -localonly <N> <EXE>"
#- réseau de PCs
#RUN_MPI="mpiexec -file mpirun.txt"
#RUN_MPI="mpiexec -logon : -machinefile mpirun.txt -n <N> <EXE>"
#- PCs en réseau avec solution de connection simplifiee
#RUN_MPI="smpd -machinefile mpirun.txt"
***************************************************************************


Aissa,