open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello,

maybe here is somebody who had run telemac2d on linux with openmpi and is so helpful to show me the way out the darkness.

In short:
I had tryed the cavity example with the selfcompiled telemac2d version and it works. :)

Next I tryed the same with mpi support but:
---8<---
*** COMPILATION ***

gfortran -c -O3 -fconvert=big-endian -frecord-marker=4 -I /opt/telemac/telemac2d/tel2d_v6p0/gFortran -I /opt/telemac/sisyphe/sisyphe_v6p0/gFortran -I /opt/telemac/special/special_v6p0/gFortran -I /opt/telemac/bief/bief_v6p0/gFortran -I /opt/telemac/damocles/damo_v6p0/gFortran -I /opt/telemac/paravoid/paravoid_v6p0/gFortran -I /opt/telemac/mpi/gFortran/include t2dfort.f

*** BIBLIOTHEQUES ***

- /opt/telemac/telemac2d/tel2d_v6p0/gFortran/telemac2dv6p0.a
- /opt/telemac/sisyphe/sisyphe_v6p0/gFortran/sisyphev6p0.a
- /opt/telemac/special/special_v6p0/gFortran/specialv6p0.a
- /opt/telemac/bief/bief_v6p0/gFortran/biefv6p0.a
- /opt/telemac/damocles/damo_v6p0/gFortran/damov6p0.a
- /opt/telemac/parallel/parallel_v6p0/gFortran/parallelv6p0.a
- -I/usr/lib/openmpi/include
- -pthread
- -I/usr/lib/openmpi/lib
- -L/usr/lib/openmpi/lib
- -lmpi_f90
- -lmpi_f77
- -lmpi
- -lopen-rte
- -lopen-pal
- -ldl
- -Wl,--export-dynamic
- -lnsl
- -lutil
- -lm
- -ldl
- /opt/telemac/mumpsvoid/mumpsvoid_v6p0/gFortran/mumpsvoidv6p0.a

*** EDITION DE LIENS ***

/opt/telemac/bief/bief_v6p0/gFortran/biefv6p0.a(lump.o): In function `lump_':
lump.f:(.text+0xe6): undefined reference to `plante_'
/opt/telemac/bief/bief_v6p0/gFortran/biefv6p0.a(matrix.o): In function `matrix_':
matrix.f:(.text+0xd2d): undefined reference to `plante_'
/opt/telemac/bief/bief_v6p0/gFortran/biefv6p0.a(matriy.o): In function `matriy_':
matriy.f:(.text+0x3647): undefined reference to `plante_'
/opt/telemac/bief/bief_v6p0/gFortran/biefv6p0.a(matvec.o): In function `matvec_':
matvec.f:(.text+0x12a4): undefined reference to `plante_'
/opt/telemac/bief/bief_v6p0/gFortran/biefv6p0.a(mt02aa.o): In function `mt02aa_':
mt02aa.f:(.text+0x738): undefined reference to `plante_'
/opt/telemac/bief/bief_v6p0/gFortran/biefv6p0.a(mt02aa_2.o):mt02aa_2.f:(.text+0x420): more undefined references to `plante_' follow
/usr/lib/gcc/x86_64-linux-gnu/4.4.3/libgfortranbegin.a(fmain.o): In function `main':
(.text+0x26): undefined reference to `MAIN__'
collect2: ld returned 1 exit status
ERREUR A L'EDITION DE LIEN

________________________________________________________
Execution terminee: telemac2d.bat
________________________________________________________
Compilation/linking/file errors detected.
Please see messages in: stdout above, stderr,
and/or file /var/tmp/TELEMAC/cavity/cas.txt3292_error.log
No execution errors detected.

Returning exit status 1
...
...stopping.
---8<---

The cas error File say:
*** ERREUR A L'EDITION DE LIEN princi.f ***

My System:
Ubuntu 10.04 64Bit
gfortran 4.4
openmpi 1.4.1

My telemac-dir:
artemis
bief
bin
config
damocles
mumpsvoid
parallel
paravoid
sisyphe
special
telemac2d
tomawac

? No mpi-Folder is this correct?
I had downloaded the sources direct from the telemac server (2010-08-18).

The MP files in the telemac-dir:
./artemis/arte_v6p0/gFortran/artemisv6p0_MP.exe
./artemis/arte_v6p0/sources/artemisv6p0_MP.exe
./tomawac/toma_v6p0/gFortran/tomawacv6p0_MP.exe
./tomawac/toma_v6p0/sources/tomawacv6p0_MP.exe
./sisyphe/sisyphe_v6p0/gFortran/sisyphev6p0_MP.exe
./sisyphe/sisyphe_v6p0/sources/sisyphev6p0_MP.exe
./telemac2d/tel2d_v6p0/gFortran/telemac2dv6p0_MP.exe
./telemac2d/tel2d_v6p0/sources/telemac2dv6p0_MP.exe

? There is no bief MP. Is this correct ?

The MPI Part in the systel.ini file:
---8<---
FC_MPI="/usr/bin/mpif90 "
LK_MPI="/usr/bin/mpif90 -o <EXE> <OBJS> <LIBS> "
LIBS_MPI="-I/usr/lib/openmpi/include -pthread -I/usr/lib/openmpi/lib -L/usr/lib/openmpi/lib -lmpi_f90 -lmpi_f77 -lmpi -lopen-rte -lopen-pal -ldl -Wl,--export-dynamic -lnsl -lutil -lm -ldl"
RUN_MPI="/usr/bin/mpirun -machinefile mpirun.txt -np <N> <EXE>"

The cas.txt file in the cavity-dir:
---8<---
PARALLEL PROCESSORS = 2
---8<---

The mpi_telemac.conf in the cavity-dir:
# Number of processors :
4
#
# For each host :
#
# hostname number_of_processors_on_the_host
#
localhost 1
localhost 1
localhost 1
localhost 1

? Any hint what is missing or wrong?
? Is id possible at all, running telemac2d on linux with openmpi and gfortran?

Thank's a lot for any kind of help. :)
With best regards,
Ralf

Hi,

You have to tell the compiler that in case of unresolved reference it must loop again over the libraries. For MAIN_ a partial solution will consist of adding the main program homere_telemac2d.f in your FORTRAN FILE. I'll tell you tomorrow morning the compiler directive for gfortran (I don't have it here at home).

Regards,

JMH

Now the command for the gfortran compiler (we discovered that only recently) :

In file systel.ini in the section dedicated to gfortran :

LK_MPI="mpif90 -o <EXE> <OBJS> -Xlinker --start-group <LIBS> --end-group "

instead of:

LK_MPI="mpif90 -o <EXE> <OBJS> <LIBS> "

Hope this works,

Regards,

Jean-Michel Hervouet

Dear Jean-Michel,

> Hope this works?
You make my day!

Thanks a lot, it works.

I had changed the LK_MPI line as you told me and run the cfgmak. Than I recompiled the whole telemac and surprise mpi used both cores.

Voici un baiser pour te remercier.
(It is from www.leo.org)

with best regards,
Ralf