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use find_package(mpi) instead of relying on compilers set

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This commit is contained in:
Kalin Kiesling 2022-04-05 15:32:43 -05:00
parent 09c524a3e7
commit 01850016c6
1 changed files with 17 additions and 7 deletions
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24
CMakeLists.txt
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@ -1,4 +1,4 @@
cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
cmake_minimum_required(VERSION 3.10 FATAL_ERROR)
project(openmc C CXX)
# Set version numbers
@ -30,6 +30,7 @@ option(OPENMC_ENABLE_PROFILE "Compile with profiling flags"
option(OPENMC_ENABLE_COVERAGE "Compile with coverage analysis flags" OFF)
option(OPENMC_USE_DAGMC "Enable support for DAGMC (CAD) geometry" OFF)
option(OPENMC_USE_LIBMESH "Enable support for libMesh unstructured mesh tallies" OFF)
option(OPENMC_USE_MPI "Enable MPI" OFF)
#===============================================================================
# Set a default build configuration if not explicitly specified
@ -44,10 +45,9 @@ endif()
# MPI for distributed-memory parallelism
#===============================================================================
set(MPI_ENABLED FALSE)
if(${CMAKE_CXX_COMPILER} MATCHES "(mpi[^/]*|CC)$")
message(STATUS "Detected MPI wrapper: ${CMAKE_CXX_COMPILER}")
set(MPI_ENABLED TRUE)
if(OPENMC_USE_MPI)
find_package(MPI REQUIRED)
include_directories(${MPI_CXX_INCLUDE_DIRS})
endif()
#===============================================================================
@ -108,7 +108,7 @@ endif()
find_package(HDF5 REQUIRED COMPONENTS C HL)
if(HDF5_IS_PARALLEL)
if(NOT MPI_ENABLED)
if(NOT OPENMC_USE_MPI)
message(FATAL_ERROR "Parallel HDF5 was detected, but the detected compiler,\
${CMAKE_CXX_COMPILER}, does not support MPI. An MPI-capable compiler must \
be used with parallel HDF5.")
@ -141,9 +141,15 @@ endif()
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
if(OPENMC_USE_MPI)
list(APPEND cxxflags ${MPI_CXX_COMPILE_FLAGS})
list(APPEND ldflags ${MPI_CXX_LINK_FLAGS})
endif()
if(OPENMC_ENABLE_PROFILE)
list(APPEND cxxflags -g -fno-omit-frame-pointer)
endif()
if(OPENMC_ENABLE_COVERAGE)
list(APPEND cxxflags --coverage)
list(APPEND ldflags --coverage)
@ -398,7 +404,7 @@ target_include_directories(libopenmc PRIVATE ${CMAKE_BINARY_DIR}/include)
if (HDF5_IS_PARALLEL)
target_compile_definitions(libopenmc PRIVATE -DPHDF5)
endif()
if (MPI_ENABLED)
if (OPENMC_USE_MPI)
target_compile_definitions(libopenmc PUBLIC -DOPENMC_MPI)
endif()
@ -440,6 +446,10 @@ if (PNG_FOUND)
target_link_libraries(libopenmc PNG::PNG)
endif()
if (OPENMC_USE_MPI)
target_link_libraries(libopenmc MPI::MPI_CXX)
endif()
#===============================================================================
# openmc executable
#===============================================================================