alternatively, delete you CMakeCache.txt, then run

CC=/path/to/mpic++ cmake .

2011/11/27 Christoph Junghans <[email protected]>:
> Option 1:
> If you have ccmake or cmake-gui installed, you can just run build.sh
> with --gui options (it calls ccmake/cmake-gui instead of cmake), which
> opens a nice menu with all options.
>
> Option 2:
> run cmake and edit CMakeCache.txt by hand and rerun cmake
>
> Option 3:
> -DCMAKE_CXX_COMPILER=/path/to/mpic++
>
> Cheers,
>
> Christoph
>
>
> Am 26. November 2011 16:24 schrieb Sikandar Mashayak <[email protected]>:
>> 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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>>
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>
>
>
> --
> Christoph Junghans
> Web: http://www.compphys.de
>
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