open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello everyone,

i want to use Telemac 3D in Parallel. Because the automatic installation did not work on my PC, I manually installed Telemac as described. For the normal use it worked fine, but if i tried to start a parallel computation, I received the error attached.

In the forum i read something about, that i need this systel_parallel_v7p0.cfg? but where i get it and where to put it in? And do i need another "programm" running parallel, something like MPI or MPICH2(which is already installed)?

Im looking forward to your answers, because im quite new in this computational topic...

Best regards

Markus

Hello Markus,

I am not familiar with the automatic installer and what configuration it installs. All the configuration files should be placed in the 'configs' subfolder and have cfg extension. A systel file can hold configurations for both the parallel and scalar version of telemac. My guess is that the files with the windows suffix hold both configurations. Try to specify a particular configuration file by adding -f in your command line, e.g.

Regards,
Costas

Hello Costas,

unfortunately i received another error(error2).

But i get now a "parallel.cfg" file from a college, for telemac version v6p3. I guess that i managed to start now a simulation, but did not get a result (simulation). If i look in the simulation folder i can see the setting, and that the geometry is splitted into 4 parts and so on..

Do you have any hint what is going on?

Best regards,

Markus

The systel.cis-windows.cfg file does not hold a parallel configuration. Can you post the parallel file that your colleague gave to you? We would be able to make it work with v7p0 easily.

Costas

PS. Use console redirection to capture the error to a text file instead of the screen. e.g.It will make posting the error easier.

OK that would be great! and thanks for the hint: in the following is the output i get using telemac version v6p3 and a 2D simulation:


Loading Options and Configurations
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

... parsing configuration file: systel.parallel.cfg


Running your CAS file for:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

+> configuration: wing64mpi
+> root: C:\opentelemac-mascaret\v6p3
+> version v6p3


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


... reading the main module dictionary

... processing the main CAS file(s)
+> running in English

... checking parallelisation

... handling temporary directories

... checking coupling between codes

... first pass at copying all input files
+> t2d_ramp.cas
copying: telemac2d.dico C:\opentelemac-mascaret\v6p3\1999\t2d_ramp.cas_2015-07-08-12h00min15s\T2DDICO
copying: t2d_NW.txt C:\opentelemac-mascaret\v6p3\1999\t2d_ramp.cas_2015-07-08-12h00min15s\T2DIMP
re-writing: C:\opentelemac-mascaret\v6p3\1999\t2d_ramp.cas_2015-07-08-12h00min15s\T2DCAS
copying: boundary.cli C:\opentelemac-mascaret\v6p3\1999\t2d_ramp.cas_2015-07-08-12h00min15s\T2DCLI
copying: initial_15.slf C:\opentelemac-mascaret\v6p3\1999\t2d_ramp.cas_2015-07-08-12h00min15s\T2DPRE
copying: geometry.slf C:\opentelemac-mascaret\v6p3\1999\t2d_ramp.cas_2015-07-08-12h00min15s\T2DGEO

... checking the executable
re-copying: telemac2d.exe C:\opentelemac-mascaret\v6p3\1999\t2d_ramp.cas_2015-07-08-12h00min15s\out_telemac2d.exe

... modifying run command to MPI instruction

... modifying run command to PARTEL instruction
duplicating: T2DIMP
partitioning: T2DPRE
+> C:\opentelemac-mascaret\v6p3\builds\wing64mpi\bin\partel.exe < PARTEL.PAR >> partel_T2DPRE.log
partitioning: T2DGEO
+> C:\opentelemac-mascaret\v6p3\builds\wing64mpi\bin\partel.exe < PARTEL.PAR >> partel_T2DGEO.log

... handling sortie file(s)


Running your simulation(s) :
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~



C:\opentelemac-mascaret\mpich2\bin\mpiexec.exe -wdir C:\opentelemac-mascaret\v6p3\1999\t2d_ramp.cas_2015-07-08-12h00min15s -n 4 out_telemac2d.exe


mpiexec aborting job...

I suppose changing the root in the systel cfg file to match the v7p0 installation should do:
Changetoor whatever the path is to your installation.

You will have to compile the parallel configuration of course.

Costas

compilation is done just writing: compileTELEMAC.py in the command window and being in the correct folder?

In your case it should be:

compileTELEMAC.py -f systel_file -c wing64mpi

Of course, pay attention to the PATH environmental variables.
Costas

ah ok thanks a lot!!
The PATH environmental variable i have to change like:
old: C:\opentelemac-mascaret\v7p0\configs\systel_v7p0.cfg
new: C:\opentelemac-mascaret\v7p0\configs\systel.parallel.cfg

or?
Unfortunatly im a bit confused: is telemac without parallel after that still working?

Best regards
Markus

No, that is the SYSTEL variable you are talking about and that is bypassed by using the -f switch. In PATH variable you need to have the path to the python27 script folder for version v7p0, not v6p3 (in case you have both).
Costas