I did have two mpi's on my system which seems to be the cause of the 
problem. (apt-get install paraview install openmpi .... ). Explicitly 
pointing the libmesh configuration to the mpich2 binaries made mumps work!

Thanks a lot!

Jens

On 04/18/2012 02:39 PM, Dmitry Karpeev wrote:
>
>
> On Wed, Apr 18, 2012 at 1:32 PM, John Peterson <[email protected] 
> <mailto:[email protected]>> wrote:
>
>     On Wed, Apr 18, 2012 at 12:05 PM, Dmitry Karpeev
>     <[email protected] <mailto:[email protected]>> wrote:
>     > On Wed, Apr 18, 2012 at 11:47 AM, Jens Lohne Eftang
>     <[email protected] <mailto:[email protected]>>
>     > wrote:
>     >>
>     >> petsch make test runs ex19 with 1 and 2 mpi processes and ex5f
>     with 1 mpi
>     >> process sucessfully.
>     >
>     > I'm guessing the problem is with the way libMesh uses PETSc's
>     compilers.
>     > I'm not sure exactly how libMesh deals with it when PETSc
>     doesn't define a
>     > C++ compiler.
>
>     > Perhaps then an mpicxx from another mpi install ends up being used?
>     > Maybe John can answer that.
>
>     I suppose it's possible if he has multiple MPI installations on
>     his system?
>
>     Libmesh uses the first mpicxx it finds in your path unless you specify
>
> I was under the impression that libMesh tried to use the compilers 
> that PETSc configured
> (provided libMesh was itself configured with PETSc).
>
>
>     CXX=/path/to/some/mpi/mpicxx ./configure ...
>
> Okay, then I think the problem is that PETSc is linked against mpi from
> /home/eftang/fem_software/mpich2-install,
> while the mpicxx that libMesh finds links the executable against a 
> different mpich.
>
> I would recommend reconfiguring PETSc using --with-clanguage=C++ and 
> making sure
> that libMesh uses the same mpicxx as PETSc.
>
> Dmitry.
>
>
>     --
>     John
>
>

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