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CMake uses FindMPI module for CMake v3.10+

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This commit is contained in:
RonRahaman 2020-07-27 13:16:27 -05:00
parent bbe72a81e4
commit 3d28f5ccd3
1 changed files with 15 additions and 6 deletions
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21
CMakeLists.txt
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@ -29,10 +29,16 @@ option(dagmc "Enable support for DAGMC (CAD) geometry" OFF)
# MPI for distributed-memory parallelism
#===============================================================================
set(MPI_ENABLED FALSE)
if(${CMAKE_CXX_COMPILER} MATCHES "(mpi[^/]*|CC)$")
message(STATUS "Detected MPI wrapper: ${CMAKE_CXX_COMPILER}")
set(MPI_ENABLED TRUE)
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.10)
# This sets MPI_CXX_FOUND
find_package(MPI COMPONENTS CXX)
else()
if(${CMAKE_CXX_COMPILER} MATCHES "(mpi[^/]*|CC)$")
message(STATUS "Detected MPI wrapper: ${CMAKE_CXX_COMPILER}")
set(MPI_CXX_FOUND TRUE)
else()
set(MPI_CXX_FOUND FALSE)
endif()
endif()
#===============================================================================
@ -61,7 +67,7 @@ endif()
find_package(HDF5 REQUIRED COMPONENTS C HL)
if(HDF5_IS_PARALLEL)
if(NOT MPI_ENABLED)
if(NOT MPI_CXX_FOUND)
message(FATAL_ERROR "Parallel HDF5 must be used with MPI.")
endif()
message(STATUS "Using parallel HDF5")
@ -344,7 +350,7 @@ target_compile_options(libopenmc PRIVATE ${cxxflags})
if (HDF5_IS_PARALLEL)
target_compile_definitions(libopenmc PRIVATE -DPHDF5)
endif()
if (MPI_ENABLED)
if (MPI_CXX_FOUND)
target_compile_definitions(libopenmc PUBLIC -DOPENMC_MPI)
endif()
@ -364,6 +370,9 @@ endif()
# linker flags. Thus, we can pass both linker flags and libraries together.
target_link_libraries(libopenmc ${ldflags} ${HDF5_LIBRARIES} ${HDF5_HL_LIBRARIES}
pugixml faddeeva xtensor gsl-lite-v1 fmt::fmt)
if(CMAKE_VERSION VERSION_GREATER_EQUAL 3.10 AND MPI_CXX_FOUND)
target_link_libraries(libopenmc MPI::MPI_CXX)
endif()
if(dagmc)
target_compile_definitions(libopenmc PRIVATE DAGMC)