CMakeLists.txt

#[[

@brief ReSolve library root

@author Slaven Peles <peless@ornl.gov>

]]

cmake_minimum_required(VERSION 3.22)

# Adds version settings and set variable CMAKE_PROJECT_VERSION
project(ReSolve VERSION "0.99.1")

set(CMAKE_CXX_STANDARD 11)

set(PACKAGE_NAME  "ReSolve")
set(PACKAGE_TARNAME "resolve")

# Prohibit in-source build
if("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
  message(FATAL_ERROR "In-source build prohibited.")
endif()

option(RESOLVE_TEST_WITH_BSUB "Use `jsrun` instead of `mpirun` commands when running tests" OFF)
option(RESOLVE_USE_KLU  "Use KLU, AMD and COLAMD libraries from SuiteSparse" ON)
option(RESOLVE_USE_CUDA "Use CUDA language and SDK" OFF)
option(RESOLVE_USE_HIP  "Use HIP language and ROCm library" OFF)
option(RESOLVE_USE_PROFILING "Set profiling tracers in the code" OFF)

option(RESOLVE_USE_GPU  "Use GPU device for computations" OFF)
mark_as_advanced(FORCE RESOLVE_USE_GPU)

option(RESOLVE_USE_ASAN "Use LLVM address sanitizer" OFF)
option(RESOLVE_USE_DOXYGEN "Use Doxygen to generate Re::Solve documentation" ON)
set(RESOLVE_CTEST_OUTPUT_DIR ${PROJECT_BINARY_DIR} CACHE PATH "Directory where CTest outputs are saved")

if(RESOLVE_USE_CUDA)
  set(RESOLVE_USE_GPU ON CACHE BOOL "Using CUDA GPU!" FORCE)
endif()

if(RESOLVE_USE_HIP)
  set(RESOLVE_USE_GPU ON CACHE BOOL "Using HIP GPU!" FORCE)
endif()

# MacOS specific things
set(CMAKE_MACOSX_RPATH 1)

# Install with RPATH but do not build with it
set(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
set(CMAKE_INSTALL_RPATH ${CMAKE_INSTALL_PREFIX}/lib)

# Add CMake sources from `cmake` dir
list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)

# Including clang-format cmake files to do automatic checking of formating
# TODO: Set up clang-format
#include(./cmake/clang-format)

# This will create target `doxygen` for building documentation locally.
# For now, this target is intended only for developers who want to test
# different documentation configurations. To have Doxygen configuration
# changed at readthedocs, update `docs/doxygen/Doxyfile.in` accordingly.
if (RESOLVE_USE_DOXYGEN)
  include(ReSolveFindDoxygen)
endif()


if (RESOLVE_USE_KLU)
  include(FindKLU)
  if(NOT KLU_LIBRARY)
    message(STATUS "Cannot find KLU, disabling SuiteSparse module ...")
    set(RESOLVE_USE_KLU OFF CACHE BOOL "Build without SuiteSparse AMD module." FORCE)
  endif()
else()
  message(STATUS "Not using SuiteSparse KLU")
endif()

include(CheckLanguage)

# Configure CUDA
if(RESOLVE_USE_CUDA)
  enable_language(CUDA)
  check_language(CUDA)

  if(NOT DEFINED CMAKE_CUDA_STANDARD)
    set(CMAKE_CUDA_STANDARD 11)
    set(CMAKE_CUDA_STANDARD_REQUIRED ON)
  endif()

  if(NOT DEFINED CMAKE_CUDA_ARCHITECTURES)
    set(CMAKE_CUDA_ARCHITECTURES 60 CACHE STRING "Selects CUDA architectures")
  endif()

  set(CMAKE_CUDA_FLAGS "${CMAKE_CUDA_FLAGS} --expt-extended-lambda")

  include(ReSolveFindCudaLibraries)
else()
  message(STATUS "Not using CUDA")
endif()

if(RESOLVE_USE_HIP)
  enable_language(HIP)
  check_language(HIP)
  include(ReSolveFindHipLibraries)
else()
  message(STATUS "Not using HIP")
endif(RESOLVE_USE_HIP)

if (RESOLVE_USE_ASAN)
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fno-omit-frame-pointer")
  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=address")
endif()

# The binary dir is already a global include directory
configure_file(
  ${CMAKE_SOURCE_DIR}/resolve/resolve_defs.hpp.in
  ${CMAKE_BINARY_DIR}/resolve/resolve_defs.hpp)
install(
  FILES ${CMAKE_BINARY_DIR}/resolve/resolve_defs.hpp
  DESTINATION include/resolve
  )


# Enable testing
enable_testing()

# Add directory with library code
add_subdirectory(resolve)

# create package version file
include(CMakePackageConfigHelpers)

# Creates a version file for the package
write_basic_package_version_file(ReSolveConfigVersion.cmake
                                 VERSION ${CMAKE_PROJECT_VERSION}
                                 COMPATIBILITY AnyNewerVersion)

# Generate install rules for targets
install(EXPORT ReSolveTargets
        FILE ReSolveTargets.cmake
        NAMESPACE ReSolve::
        DESTINATION share/resolve/cmake
)


# Creates a config file
configure_package_config_file(./cmake/ReSolveConfig.cmake.in
                              ${CMAKE_CURRENT_BINARY_DIR}/ReSolveConfig.cmake
                              INSTALL_DESTINATION share/resolve/cmake)

# Generates install rules for cmake config files
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/ReSolveConfig.cmake"
        "${CMAKE_CURRENT_BINARY_DIR}/ReSolveConfigVersion.cmake"
        DESTINATION share/resolve/cmake)
    
# Add usage examples
add_subdirectory(examples)

# Add tests
set(RESOLVE_CTEST_OUTPUT_DIR ${PROJECT_BINARY_DIR} CACHE PATH "Directory where CTest outputs are saved")
add_subdirectory(tests)