[Trilinos-Users] MPI_C_COMPILER conflict with CMAKE_C_COMPILER

[Pavel Jiránek]

Hi Fan,

Setting the environment variables CC and CXX in the configuration script
works just fine for me, e.g.:

export CC=mpicc
export CXX=mpicxx

Best wishes,
Pavel



On Wed, Jul 3, 2013 at 3:46 PM, Fan YE <yefanhust at gmail.com> wrote:

> Hello everyone,
>
> I'm trying to install Trilinos with MPI enabled in a workstation equipped
> with Intel Xeon Phi coprocessors.
>
> I want to use intel compilers and intel MPI compiler wrappers, so I wrote
> my do-configure as follow:
>
>  cmake \
>     -D CMAKE_BUILD_TYPE:STRING=DEBUG \
>     -D Trilinos_ENABLE_TESTS:BOOL=ON \
>     -D TPL_ENABLE_MPI:BOOL=ON \
>     -D MPI_USE_COMPILER_WRAPPERS:BOOL=ON \
>     -D MPI_C_COMPILER:FILEPATH=/opt/intel/impi/4.1.1/intel64/bin/mpiicc \
>     -D MPI_CXX_COMPILER:FILEPATH=/opt/intel/impi/4.1.1/intel64/bin/mpiicpc
> \
>     -D CMAKE_C_COMPILER:FILEPATH=/opt/intel/composerxe/bin/icc \
>     -D CMAKE_CXX_COMPILER:FILEPATH=/opt/intel/composerxe/bin/icc \
>     -D CMAKE_C_FLAGS:STRING="-mkl" \
>     -D CMAKE_CXX_FLAGS:STRING="-mkl" \
>     ...
>
>  So the idea here is dealing all with Intel products.
> However, when I finished configuring Trilinos, I always got such Cmake
> Warning:
>
> Manually-specified variables were not used by the project:
>
>     MPI_CXX_COMPILER
>     MPI_C_COMPILER
>
> It seems that the mpi compiler wrappers are not taken into account. The
> result of trying to "make" confirms this judge:
>
> /home/fye/tmp/trilinos-11.2.4/trilinos-11.2.4-Source/packages/teuchos/core/src/Teuchos_Time.hpp(56):
> catastrophic error: cannot open source file "mpi.h"
>   #include "mpi.h"
>                   ^
> Apparently, the wrappers are not working in this case.
>
> Any one has any idea about this?
>
> Thank you in advance for any comments.
>
> Best regards,
> Fan
>
>
>
>
>
>
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>
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