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Build and link a static OpenCL loader library for all platforms

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This commit is contained in:
Axel Kohlmeyer
2021-02-21 01:28:44 -05:00
parent f0f5962676
commit d025b281cf
2 changed files with 59 additions and 13 deletions
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54
cmake/Modules/OpenCLLoader.cmake Normal file
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@ -0,0 +1,54 @@
message(STATUS "Downloading and building OpenCL loader library")
if(CMAKE_BUILD_TYPE STREQUAL Debug)
set(OPENCL_LOADER_LIB_POSTFIX d)
else()
set(OPENCL_LOADER_LIB_POSTFIX)
endif()
include(ExternalProject)
set(OPENCL_LOADER_URL "https://download.lammps.org/thirdparty/opencl-loader-2020.12.18.tar.gz" CACHE STRING "URL for OpenCL loader tarball")
mark_as_advanced(OPENCL_LOADER_URL)
ExternalProject_Add(opencl_loader
URL ${OPENCL_LOADER_URL}
URL_MD5 f1e6a084d4950382588207133965ec89
SOURCE_DIR "${CMAKE_BINARY_DIR}/opencl_loader-src"
BINARY_DIR "${CMAKE_BINARY_DIR}/opencl_loader-build"
CMAKE_ARGS ${CMAKE_REQUEST_PIC} ${CMAKE_EXTRA_OPENCL_LOADER_OPTS}
-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
-DCMAKE_INSTALL_PREFIX=<INSTALL_DIR>
-DCMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE}
-DCMAKE_MAKE_PROGRAM=${CMAKE_MAKE_PROGRAM}
-DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE}
BUILD_BYPRODUCTS <BINARY_DIR>/lib/${CMAKE_FIND_LIBRARY_PREFIXES}OpenCL${OPENCL_LOADER_LIB_POSTFIX}.a
LOG_DOWNLOAD ON
LOG_CONFIGURE ON
LOG_BUILD ON
INSTALL_COMMAND ""
TEST_COMMAND "")
ExternalProject_Get_Property(opencl_loader SOURCE_DIR)
set(OPENCL_LOADER_INCLUDE_DIR ${SOURCE_DIR}/inc)
# workaround for CMake 3.10 on ubuntu 18.04
file(MAKE_DIRECTORY ${OPENCL_LOADER_INCLUDE_DIR})
ExternalProject_Get_Property(opencl_loader BINARY_DIR)
set(OPENCL_LOADER_LIBRARY_PATH "${BINARY_DIR}/libOpenCL${OPENCL_LOADER_LIB_POSTFIX}.a")
find_package(Threads QUIET)
if(NOT WIN32)
set(OPENCL_LOADER_DEP_LIBS "Threads::Threads;${CMAKE_DL_LIBS}")
else()
set(OPENCL_LOADER_DEP_LIBS "cfgmgr32;runtimeobject")
endif()
add_library(OpenCL::OpenCL UNKNOWN IMPORTED)
add_dependencies(OpenCL::OpenCL opencl_loader)
set_target_properties(OpenCL::OpenCL PROPERTIES
IMPORTED_LOCATION ${OPENCL_LOADER_LIBRARY_PATH}
INTERFACE_INCLUDE_DIRECTORIES ${OPENCL_LOADER_INCLUDE_DIR}
INTERFACE_LINK_LIBRARIES "${OPENCL_LOADER_DEP_LIBS}")

18
cmake/Modules/Packages/GPU.cmake
View File

@ -141,19 +141,10 @@ if(GPU_API STREQUAL "CUDA")
target_include_directories(nvc_get_devices PRIVATE ${CUDA_INCLUDE_DIRS})
elseif(GPU_API STREQUAL "OPENCL")
if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
# download and unpack support binaries for compilation of windows binaries.
set(LAMMPS_THIRDPARTY_URL "https://download.lammps.org/thirdparty")
file(DOWNLOAD "${LAMMPS_THIRDPARTY_URL}/opencl-win-devel.tar.gz" "${CMAKE_CURRENT_BINARY_DIR}/opencl-win-devel.tar.gz"
EXPECTED_MD5 2c00364888d5671195598b44c2e0d44d)
execute_process(COMMAND ${CMAKE_COMMAND} -E tar xzf opencl-win-devel.tar.gz WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
add_library(OpenCL::OpenCL UNKNOWN IMPORTED)
if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86")
set_target_properties(OpenCL::OpenCL PROPERTIES IMPORTED_LOCATION "${CMAKE_CURRENT_BINARY_DIR}/OpenCL/lib_win32/libOpenCL.dll")
elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
set_target_properties(OpenCL::OpenCL PROPERTIES IMPORTED_LOCATION "${CMAKE_CURRENT_BINARY_DIR}/OpenCL/lib_win64/libOpenCL.dll")
endif()
set_target_properties(OpenCL::OpenCL PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_CURRENT_BINARY_DIR}/OpenCL/include")
option(USE_STATIC_OPENCL_LOADER "Download and include a static OpenCL ICD loader" ON)
mark_as_advanced(USE_STATIC_OPENCL_LOADER)
if (USE_STATIC_OPENCL_LOADER)
include(OpenCLLoader)
else()
find_package(OpenCL REQUIRED)
endif()
@ -208,6 +199,7 @@ elseif(GPU_API STREQUAL "OPENCL")
add_executable(ocl_get_devices ${LAMMPS_LIB_SOURCE_DIR}/gpu/geryon/ucl_get_devices.cpp)
target_compile_definitions(ocl_get_devices PRIVATE -DUCL_OPENCL)
target_link_libraries(ocl_get_devices PRIVATE OpenCL::OpenCL)
add_dependencies(ocl_get_devices OpenCL::OpenCL)
elseif(GPU_API STREQUAL "HIP")
if(NOT DEFINED HIP_PATH)
if(NOT DEFINED ENV{HIP_PATH})