CMakeLists.txt

cmake_minimum_required(VERSION 3.14 FATAL_ERROR) # version 3.8 adds cuda as a language, 3.9 has better VS integration
project(las)
set(LAS_MAJOR_VERSION 0)
set(LAS_MINOR_VERSION 1)
set(LAS_PATCH_VERSION 34)
set(LAS_VERSION ${LAS_MAJOR_VERSION}.${LAS_MINOR_VERSION}.${LAS_PATCH_VERSION})
enable_language(CXX)
enable_language(C)
# enable_language(CUDA) re-enable if we need to start compiling .cu kernels
option(BUILD_SPARSKIT "Build sparskit solver library" ON)
if(${BUILD_SPARSKIT})
  enable_language(Fortran)
endif()
cmake_host_system_information(RESULT HOST QUERY HOSTNAME)
message(STATUS "Configuring to build on: ${HOST}")

list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")

set(ConfigPackageLocation lib/cmake/las)

if(${BUILD_SPARSKIT})
message(STATUS "Configuring sparskit")
add_subdirectory(sparskit)
endif()

option(WITH_KOKKOS "download an build kokkos las kernal" OFF)
if(${WITH_KOKKOS})
  find_package(Git REQUIRED)
  set(kokkos_dir ${CMAKE_CURRENT_SOURCE_DIR}/kokkos)
  if(EXISTS ${kokkos_dir})
    message(STATUS "Existing kokkos directory detected, attempting to `git pull` the newest version.")
    execute_process(COMMAND ${GIT_EXECUTABLE} pull WORKING_DIRECTORY ${kokkos_dir})
  else()
    message(STATUS "No kokkos directory detected, attempting to `git clone` the project.")
    execute_process(COMMAND ${GIT_EXECUTABLE} clone git@github.com:kokkos/kokkos.git ${CMAKE_CURRENT_SOURCE_DIR}/kokkos)
  endif()
  set(KOKKOS_FOUND TRUE)
  add_subdirectory(kokkos)
endif()

message(STATUS "Configuring las")
add_subdirectory(src)

option(WITH_PUMI "build with pumi" ON)
if (${WITH_PUMI})
  find_package(SCOREC REQUIRED)
  message(STATUS "Configure SCOREC/core integration")
  add_subdirectory(core)
endif()

option(BUILD_TESTS "Build available tests" ON)
if(BUILD_TESTS)
  enable_testing()
  message(STATUS "Configuring tests")
  add_subdirectory(test)
endif(BUILD_TESTS)
option(WITH_PETSC "build petsc backend" OFF)
option(WITH_MPI "build with MPI" OFF)
option(WITH_CUDA "build with cuda support" OFF)
if (WITH_PETSC)
  message(STATUS "Configure PETSc support")
  find_package(PkgConfig REQUIRED)
  pkg_check_modules(PETSc REQUIRED IMPORTED_TARGET GLOBAL PETSc)
endif()

configure_file(${CMAKE_CURRENT_SOURCE_DIR}/cmake/lasConfig.cmake.in
  ${CMAKE_CURRENT_BINARY_DIR}/cmake/lasConfig.cmake @ONLY)

install(FILES ${CMAKE_CURRENT_BINARY_DIR}/cmake/lasConfig.cmake
        DESTINATION ${ConfigPackageLocation})