[Dune] a problem with mpi using with dune

[Arya Fallahi]

Hi Christian,

Thank you very much for your explanations. As always the dune team has been
very helpful and supportive for me. I changed the opt file and it worked.

Many thanks for the email,
Arya

On Sun, Sep 16, 2012 at 3:37 PM, Christian Engwer <
christian.engwer at uni-muenster.de> wrote:

> Hi,
>
> > checking for mpicc... mpicc
> > checking for MPI_Init... yes
> > checking for mpi.h... yes
> > configure: Trying to identify the version of MPI compiler mpicc
> > checking for lam... no
> > checking for mpich... no
> > checking for OpenMPI... no
> > checking for MVAPICH... no
> > checking for MVAPICH2... no
> > checking for mpich2... yes
> > checking whether compiling with MPICH2 works... yes
> > configure: WARNING: Disabled test whether running with MPICH2 works.
>
> obviously your default MPI is mpich2, so running with openmpi will not
> work straight away.
>
> > I tried to make dune to compile using the openmpi installation using the
> > opt-file flags, by writing the following:
> >
> > CONFIGURE_FLAGS=" CXX='/opt/openmpi-1.6.1/bin/mpicxx'
> > CC='/opt/openmpi-1.6.1/bin/mpicc'
> > LD='/opt/openmpi-1.6.1/bin/mpicxx'
> > LDFLAGS=' '
> > --enable-parallel
> > --prefix='/opt/cyrus'
> >                   --with-metis='/opt/metis-5.0.2'
> >                   --with-alugrid='/opt/ALUGrid-1.50'
> > --with-mpi='/opt/openmpi-1.6.1/' "
> >
> > However, it did not work and dune is compiling with the mpich2. The
> > question is now, how can I tell dune to install using the openmpi
> > installation on ubuntu??
>
> as 'configure --help' would have told you:
>
> Some influential environment variables:
> [...]
>   MPICC       MPI C compiler command
> [...]
> Use these variables to override the choices made by `configure' or to help
> it to find libraries and programs with nonstandard names/locations.
>
> You should set the environment variable MPICC to point to you favorite
> mpi c-compiler. On your system this means adding
>    MPICC=/opt/openmpi-1.6.1/bin/mpicc
> to the configure flags in your opts file. For more details have a look
> at the build-system howto. It is not recommended to use mpi directly
> as your CXX or CC compiler.
>
> Christian
>
> --
> Prof. Dr. Christian Engwer
> Institut für Numerische und Angewandte Mathematik
> Fachbereich Mathematik und Informatik der Universität Münster
> Einsteinstrasse 62
> 48149 Münster
>
> E-Mail  christian.engwer at uni-muenster.de
> Telefon +49 251 83-35067
> FAX             +49 251 83-32729
>
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