[Trilinos-Users] MPI_C_COMPILER conflict with CMAKE_C_COMPILER

Fan YE yefanhust at gmail.com
Wed Jul 3 07:46:32 MDT 2013


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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