Hey Christoph thanks for the explanation.

As I am not much familiar with cmake, I wonder if I were to use mpic++
instead of g++
how should I specify that? Make any changes to Cmake files?

thanks
sikandar

On Sat, Nov 26, 2011 at 4:44 PM, Christoph Junghans <[email protected]>wrote:

> Am 26. November 2011 14:26 schrieb Sikandar Mashayak <[email protected]
> >:
> > I am trying to install Votca with mpi enabled gromacs. And it is not
> able to
> > link to
> > gromacs since library file name of gromacs is libgmx_mpi.
> > So, could anyone please suggest how to link to _mpi libraries of gromacs?
> Short answer: don't do it, just compile gromacs twice (with and without
> mpi).
> Long answer: You could specify
> -DGROMACS_LIBRARIES=/path/to/libgmx_mpi.so, but as libgmx_mpi.so
> contains calls to libmpi.so, you will need to add libmpi.so to
> GROMACS_DEP_LIBRARIES and have to use mpic++ instead of g++ as
> compiler, but as VOTCA make no use of mpi anyway, just link against
> libgmx.so (without mpi).
>
> Btw, in gromacs only mdrun make use of mpi, all other program run in
> serial and if you only run of shared memory systems mdrun with threads
> is the better option.
>
> Cheers,
>
> Christoph
>
>
> >
> > thank you,
> > sikandar
> >
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>
>
> --
> Christoph Junghans
> Web: http://www.compphys.de
>
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