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CMakeLists.txt
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#
# This file is a part of channelflow version 2.0, https://channelflow.ch .
# License is GNU GPL version 2 or later: ./LICENSE
#
# Include and configure this version of channelflow.
#
cmake_minimum_required(VERSION 3.1)
project(chflow)
######## Channelflow version ########
set(CF_VERSION_MAJOR "2")
set(CF_VERSION_MINOR "0")
set(CF_VERSION_PATCH "2")
set(CHANNELFLOW_VERSION "${CF_VERSION_MAJOR}.${CF_VERSION_MINOR}.${CF_VERSION_PATCH}")
message(STATUS "")
message(STATUS "configuring channelflow version " ${CF_VERSION_MAJOR} . ${CF_VERSION_MINOR} . ${CF_VERSION_PATCH})
######## Command line options ########
OPTION(USE_MPI "use mpi, if found" ON) # use -DUSE_MPI=off to force disable use of MPI
OPTION(BUILD_SHARED_LIBS "Builds shared libraries if ON, static libraries if OFF" ON)
OPTION(SET_RPATH "set the rpath of the executable to the found libraries" ON)
OPTION(WITH_NSOLVER "compile support for the nsolver module" ON)
OPTION(WITH_PYTHON "build a python wrapper, using boost-python" OFF)
OPTION(WITH_HDF5CXX "enable legacy file format using hdf5 cxx" OFF)
OPTION(WITH_GTEST "enable gtest unit testing" ON)
# Set compiler flags that are build-type related
if (NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Release)
endif ()
# Netcdf support
if (NOT WITH_NETCDF)
set(WITH_NETCDF "Serial" CACHE STRING "Either OFF, Serial or Parallel.")
endif ()
if (WITH_NETCDF AND
NOT (WITH_NETCDF STREQUAL "Serial" OR WITH_NETCDF STREQUAL "Parallel"))
message(FATAL_ERROR "Allowed values for WITH_NETCDF are 'OFF', 'Serial' or 'Parallel [current value is '${WITH_NETCDF}']")
endif()
######## Basic settings ########
# Ask for C++ 11
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
if (${CMAKE_CXX_COMPILER_ID} STREQUAL GNU)
message(STATUS "Using GNU compiler options")
elseif (${CMAKE_CXX_COMPILER_ID} STREQUAL Intel)
message(STATUS "Using Intel compiler options")
endif ()
set(COMPILER_VERSION "${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION}")
# rpath settings
# From: http://www.itk.org/Wiki/CMake_RPATH_handling
if (SET_RPATH)
set(CMAKE_SKIP_BUILD_RPATH FALSE)
set(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
LIST(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_PREFIX}/lib" isSystemDir)
if ("${isSystemDir}" STREQUAL "-1")
set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
endif ("${isSystemDir}" STREQUAL "-1")
else ()
message(STATUS "not setting any rpath")
set(CMAKE_SKIP_RPATH TRUE)
endif ()
######## Library finding and system introspection ########
message(STATUS "")
message(STATUS "Starting system introspection")
set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake/Modules" ${CMAKE_MODULE_PATH})
if (BUILD_SHARED_LIBS)
set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES} .so)
else ()
set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES} .a)
endif ()
# Basic system checks
include(CheckLibraryExists)
include(CheckFunctionExists)
include(CheckIncludeFiles)
include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/compiler_helper.cmake)
include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/target_helper.cmake)
include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/test_helper.cmake)
include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/check_mpi_compiles.cmake)
CHECK_FUNCTION_EXISTS(drand48 HAVE_DRAND48)
CHECK_INCLUDE_FILES(wordexp.h HAVE_WORDEXP_H)
# Find all the dependencies
find_package(Eigen3 REQUIRED)
find_package(FFTW REQUIRED)
set(CMAKE_REQUIRED_INCLUDES ${FFTW_INCLUDE_DIR})
CHECK_INCLUDE_FILES(fftw3.h HAVE_FFTW_H)
if (USE_MPI)
# In principle channelflow only needs MPI_C libraries and not MPI_CXX, but
# the legacy file format with HDF5 C++ requires to link against MPI_CXX
find_package(MPI COMPONENTS C CXX REQUIRED)
set(HAVE_MPI TRUE)
message(STATUS "MPI libs: ${MPI_CXX_LIBRARIES}")
message(STATUS "FFTW_MPI library: ${FFTW_MPI_LIBRARY}")
# Require MPI-capable compiler
CHECK_MPI_COMPILES(MPI_COMPILES)
if (NOT MPI_COMPILES)
if (MPI_CXX_COMPILER AND (NOT CMAKE_CXX_COMPILER STREQUAL MPI_CXX_COMPILER))
SET(COMPILER_SUGGESTION " (such as ${MPI_CXX_COMPILER})")
endif()
message(FATAL_ERROR "Option USE_MPI is set and MPI is found, but the compiler (${CMAKE_CXX_COMPILER}) failed to compile MPI code. To set another compiler${COMPILER_SUGGESTION}, use cmake option -DCMAKE_CXX_COMPILER=<compiler> or set environment variable CXX. If you do not want to use MPI, clean up and rerun cmake with -DUSE_MPI=off.")
endif ()
# Require FFTW MPI library
if (NOT FFTW_MPI_LIBRARY)
message(FATAL_ERROR "Option USE_MPI is set and MPI is found, but cmake couldn't find libfftw_mpi, which is required. If you do not want to use MPI, clean up and rerun cmake with -DUSE_MPI=off.")
endif ()
else ()
message(STATUS "Not using MPI")
endif ()
if (WITH_NETCDF)
find_package(NetCDF REQUIRED)
message(STATUS "NetCDF include dir: ${NETCDF_INCLUDE_DIRS}")
set(CMAKE_REQUIRED_INCLUDES ${NETCDF_INCLUDE_DIRS})
CHECK_INCLUDE_FILES(netcdf.h HAVE_NETCDF_H)
if (NOT HAVE_NETCDF_H)
message(FATAL ERROR "could not include netcdf.h [Required by WITH_NETCDF]")
endif ()
# Check for the parallel header of NetCDF only if we are building with MPI
if (WITH_NETCDF STREQUAL "Parallel")
CHECK_INCLUDE_FILES(netcdf_par.h HAVE_NETCDF_PAR_H)
if (NOT HAVE_NETCDF_PAR_H)
message(FATAL ERROR "could not include netcdf_par.h [Required by WITH_NETCDF=Parallel]")
endif ()
endif ()
endif ()
if (WITH_HDF5CXX)
find_package(HDF5 COMPONENTS CXX REQUIRED)
get_filename_component(HDF5_LIBRARY_DIR "${HDF5_CXX_LIBRARY_hdf5}" DIRECTORY)
message(STATUS "Checking if hdf5 library functions in ${HDF5_LIBRARY_DIR} are working correctly.")
set(CMAKE_REQUIRED_INCLUDES ${HDF5_INCLUDE_DIRS})
CHECK_INCLUDE_FILES(hdf5.h HAVE_HDF5_H)
CHECK_LIBRARY_EXISTS(hdf5 H5D_init "${HDF5_LIBRARY_DIR}" HAVE_LIBHDF5)
set(CMAKE_REQUIRED_LIBRARIES hdf5) # need hdf5 to run hdf5_hl and hdf5_cpp
CHECK_LIBRARY_EXISTS(hdf5_hl H5Dopen2 "${HDF5_LIBRARY_DIR}" HAVE_LIBHDF5_HL)
CHECK_LIBRARY_EXISTS(hdf5_cpp H5Eprint2 "${HDF5_LIBRARY_DIR}" HAVE_LIBHDF5_CPP)
endif ()
######## Create config.h from config.h.in ########
configure_file("${PROJECT_SOURCE_DIR}/config.h.in" "${PROJECT_BINARY_DIR}/channelflow/config.h")
if (WITH_NSOLVER)
configure_file("${PROJECT_SOURCE_DIR}/config.h.in" "${PROJECT_BINARY_DIR}/nsolver/config.h")
endif ()
######## Write git revision into a generated cpp file ########
# We could also directly write the git revision into the config.h,
# but this would cause everything to rebuild everytime the git
# revision changes
include(GetGitRevisionDescription)
get_git_head_revision(GIT_REFSPEC GIT_SHA1)
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/GitSHA1.cpp.in" "${CMAKE_CURRENT_BINARY_DIR}/GitSHA1.cpp" @ONLY)
list(APPEND SOURCES "${CMAKE_CURRENT_BINARY_DIR}/GitSHA1.cpp" GitSHA1.h)
get_directory_property(OUT_VAR INCLUDE_DIRECTORIES)
message(STATUS "")
message(STATUS "Include directories: ${OUT_VAR}")
message(STATUS "Git revision ${GIT_SHA1}")
# Set up bundled projects
add_subdirectory(bundled)
# Compile core libraries and executables
add_subdirectory(cfbasics)
if (WITH_NSOLVER)
add_subdirectory(nsolver)
endif ()
add_subdirectory(channelflow)
add_subdirectory(programs)
add_subdirectory(tools)
# Check if we want to build the python wrapper and have boost-python
# If Python and boost.python are there, build python interface
if (WITH_PYTHON)
if (USE_MPI)
message(FATAL_ERROR "Compiling the python wrapper requires -DUSE_MPI=OFF")
endif()
find_package(Boost COMPONENTS python REQUIRED)
find_package(PythonLibs 2.7 REQUIRED)
message(STATUS "Building with Python interface.")
add_subdirectory(python-wrapper)
endif ()
enable_testing()
add_subdirectory(tests)
if (WITH_PYTHON)
add_subdirectory(python-wrapper/tests)
endif()
######## Summary ########
message("\n")
message(" ###############################################")
message(" ########### Configuration summary ###########")
message(" ###############################################")
message(" Compiler: ${COMPILER_VERSION}")
message(" Build type: ${CMAKE_BUILD_TYPE}")
message(" Install prefix: ${CMAKE_INSTALL_PREFIX}")
if (BUILD_SHARED_LIBS)
message(" Building shared library: yes")
message(" Linking programs to: shared library")
else ()
message(" Building shared library: no")
message(" Linking programs to: static library")
endif ()
message("\n Libraries")
if (MPI_FOUND)
message(" MPI: enabled")
else ()
message(" MPI: disabled")
endif ()
if (HAVE_NETCDF_H)
message(" netcdf (default file format): enabled")
else ()
message(" netcdf (default file format): disabled")
endif ()
if (HAVE_NETCDF_PAR_H)
message(" Parallel netcdf: enabled")
else ()
message(" Parallel netcdf: disabled")
endif ()
if (WITH_HDF5CXX)
message(" HDF5 C++ (legacy file format): enabled")
else ()
message(" HDF5 C++ (legacy file format): disabled")
endif ()
message("\n Channelflow components")
if (WITH_NSOLVER)
message(" nsolver: enabled")
else ()
message(" nsolver: disabled")
endif ()
if (WITH_PYTHON)
message(" Python wrapper: enabled")
else ()
message(" Python wrapper: disabled")
endif ()
if (WITH_GTEST)
message(" GTest unit testing: enabled")
else ()
message(" GTest unit testing: disabled")
endif ()
message("\n")