SET(MPI_DEFINITIONS "${MPI_CXX_COMPILE_FLAGS}")
IF(MPI2_IS_OK)
MESSAGE(STATUS "Your mpi implementation is compatible with mpi2 ... adding -DHAVE_MPI2")
SET(MPI_DEFINITIONS "${MPI_CXX_COMPILE_FLAGS}")
IF(MPI2_IS_OK)
MESSAGE(STATUS "Your mpi implementation is compatible with mpi2 ... adding -DHAVE_MPI2")