2009/12/15 troy <t...@resophonic.com> > alt.boost.cmake uses cmake's standard detection of MPI... our docs are > very terse: > > http://sodium.resophonic.com/boost-cmake/current-docs/externals/mpi.html > > See the cmake docs for FindMPI. I assume the best way is to tweak some > cache variables post-installation. >
I have not found any FindMPI.cmake file (even in MPICH2 or OpenMPI project directories), but only a MPI.cmake file, in <boost-source-root-dir>/tools/build/CMake/externals. There, by adding the following lines, I was successful in building Boost.MPI with OpenMPI rather than with MPICH2: --------------------------------------------------------------------------------- set(MPI_INCLUDE_PATH /usr/include/openmpi-x86_64) set(MPI_COMPILE_FLAGS -I/usr/include/openmpi-x86_64) set(MPI_LINK_FLAGS -L/usr/lib64/openmpi/lib -L/usr/lib64/openmpi/lib/openmpi -lmpi_cxx -lmpi) set(MPI_LIBRARIES /usr/lib64/openmpi/lib/libmpi.so /usr/lib64/openmpi/lib/libmpi_cxx.so) set(MPI_FOUND 1) --------------------------------------------------------------------------------- [Note: the file attached is the corresponding patch] However, you may see that I am not a CMake specialist, and that I have hard-coded the pathes of OpenMPI. So, if some of you know better CMake than I do, do not hesitate to improve OpenMPI detection. D.
diff -ru boost-1.41.0.cmake0/tools/build/CMake/externals/MPI.cmake boost-1.41.0.cmake0_working/tools/build/CMake/externals/MPI.cmake --- boost-1.41.0.cmake0/tools/build/CMake/externals/MPI.cmake 2009-12-25 13:38:30.000000000 +0100 +++ boost-1.41.0.cmake0_working/tools/build/CMake/externals/MPI.cmake 2009-12-27 12:57:28.000000000 +0100 @@ -7,5 +7,11 @@ set(MPI_FIND_QUIETLY TRUE) find_package(MPI) +set(MPI_INCLUDE_PATH /usr/include/openmpi-x86_64) +set(MPI_COMPILE_FLAGS -I/usr/include/openmpi-x86_64) +set(MPI_LINK_FLAGS -L/usr/lib64/openmpi/lib -L/usr/lib64/openmpi/lib/openmpi -lmpi_cxx -lmpi) +set(MPI_LIBRARIES /usr/lib64/openmpi/lib/libmpi.so /usr/lib64/openmpi/lib/libmpi_cxx.so) +set(MPI_FOUND 1) + boost_external_report(MPI INCLUDE_PATH COMPILE_FLAGS LINK_FLAGS LIBRARIES)
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