CMakeLists.txt

cmake_minimum_required(VERSION 3.20...3.28)

set(CMAKE_CXX_COMPILER "clang++")
#For cuda backend. Alternate backends supported based on compiler being used
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsycl -fsycl-targets=nvptx64-nvidia-cuda -Xsycl-target-backend=nvptx64-nvidia-cuda --cuda-gpu-arch=sm_61")

project(
        IceSYCL
        VERSION 0.1
        DESCRIPTION "An MPM engine with SYCL GPU acceleration"
        LANGUAGES CXX)

# Only do these if this is the main project, and not if it is included through add_subdirectory
if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
    include(CTest)

endif()

include(FetchContent)

find_package(Git QUIET)
if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
    # Update submodules as needed
    option(GIT_SUBMODULE "Check submodules during build" ON)
    if(GIT_SUBMODULE)
        message(STATUS "Submodule update")
        execute_process(COMMAND ${GIT_EXECUTABLE} submodule update --init --recursive
                WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                RESULT_VARIABLE GIT_SUBMOD_RESULT)
        if(NOT GIT_SUBMOD_RESULT EQUAL "0")
            message(FATAL_ERROR "git submodule update --init --recursive failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
        endif()
    endif()
endif()

if(NOT EXISTS "${PROJECT_SOURCE_DIR}/extern/oneDPL/CMakeLists.txt")
    message(FATAL_ERROR "The submodules were not downloaded! GIT_SUBMODULE was turned off or failed. Please update submodules and try again.")
endif()

add_subdirectory(extern/oneDPL)
add_subdirectory(extern/SYCL-Small-Linear-Algebra)

# The compiled library code is here
add_subdirectory(src)

# Testing only available if this is the main app
# Emergency override MODERN_CMAKE_BUILD_TESTING provided as well
if((CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME OR MODERN_CMAKE_BUILD_TESTING)
        AND BUILD_TESTING)
    add_subdirectory(tests)
endif()