bare skeleton created
This commit is contained in:
commit
d59e3d4ee2
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*.o
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build
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*.user
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cmake_minimum_required(VERSION 2.8)
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set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
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project(opencl-test)
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find_package(OpenCL REQUIRED)
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message(STATUS "OpenCL found: ${OPENCL_FOUND}")
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message(STATUS "OpenCL includes: ${OPENCL_INCLUDE_DIRS}")
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message(STATUS "OpenCL CXX includes: ${OPENCL_HAS_CPP_BINDINGS}")
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message(STATUS "OpenCL libraries: ${OPENCL_LIBRARIES}")
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add_executable(${PROJECT_NAME} "main.cpp")
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target_link_libraries(${PROJECT_NAME} ${OPENCL_LIBRARIES})
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include_directories(${PROJECT_NAME} ${OPENCL_INCLUDE_DIR})
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# Find OpenCL
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#
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# To set manually the paths, define these environment variables:
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# OpenCL_INCPATH - Include path (e.g. OpenCL_INCPATH=/opt/cuda/4.0/cuda/include)
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# OpenCL_LIBPATH - Library path (e.h. OpenCL_LIBPATH=/usr/lib64/nvidia)
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#
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# Once done this will define
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# OPENCL_FOUND - system has OpenCL
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# OPENCL_INCLUDE_DIRS - the OpenCL include directory
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# OPENCL_LIBRARIES - link these to use OpenCL
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# OPENCL_HAS_CPP_BINDINGS - system has also cl.hpp
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FIND_PACKAGE(PackageHandleStandardArgs)
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SET (OPENCL_VERSION_STRING "0.1.0")
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SET (OPENCL_VERSION_MAJOR 0)
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SET (OPENCL_VERSION_MINOR 1)
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SET (OPENCL_VERSION_PATCH 0)
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IF (APPLE)
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# IF OpenCL_LIBPATH is given use it and don't use default path
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IF (DEFINED ENV{OpenCL_LIBPATH})
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FIND_LIBRARY(OPENCL_LIBRARIES OpenCL PATHS ENV OpenCL_LIBPATH NO_DEFAULT_PATH)
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ELSE ()
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FIND_LIBRARY(OPENCL_LIBRARIES OpenCL DOC "OpenCL lib for OSX")
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ENDIF ()
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# IF OpenCL_INCPATH is given use it and find for CL/cl.h and OpenCL/cl.h do not try to find default paths
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IF (DEFINED ENV{OpenCL_INCPATH})
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FIND_PATH(OPENCL_INCLUDE_DIRS CL/cl.h OpenCL/cl.h PATHS ENV OpenCL_INCPATH NO_DEFAULT_PATH)
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FIND_PATH(_OPENCL_CPP_INCLUDE_DIRS CL/cl.hpp OpenCL/cl.hpp PATHS ${OPENCL_INCLUDE_DIRS} NO_DEFAULT_PATH)
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ELSE ()
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FIND_PATH(OPENCL_INCLUDE_DIRS OpenCL/cl.h DOC "Include for OpenCL on OSX")
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FIND_PATH(_OPENCL_CPP_INCLUDE_DIRS OpenCL/cl.hpp DOC "Include for OpenCL CPP bindings on OSX")
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ENDIF ()
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ELSE (APPLE)
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IF (WIN32)
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# Find OpenCL includes and libraries from environment variables provided by vendor
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SET(OPENCL_INCLUDE_SEARCH_PATHS)
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SET(OPENCL_LIBRARY_SEARCH_PATHS)
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SET(OPENCL_LIBRARY_64_SEARCH_PATHS)
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# Nvidia
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IF (DEFINED ENV{CUDA_INC_PATH})
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SET(OPENCL_INCLUDE_SEARCH_PATHS ${OPENCL_INCLUDE_SEARCH_PATHS} $ENV{CUDA_INC_PATH})
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SET(OPENCL_LIBRARY_64_SEARCH_PATHS ${OPENCL_LIBRARY_64_SEARCH_PATHS} $ENV{CUDA_LIB_PATH}/../lib64)
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SET(OPENCL_LIBRARY_SEARCH_PATHS ${OPENCL_LIBRARY_SEARCH_PATHS} $ENV{CUDA_LIB_PATH}/../lib)
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ENDIF()
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IF (DEFINED ENV{CUDA_PATH})
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SET(OPENCL_INCLUDE_SEARCH_PATHS ${OPENCL_INCLUDE_SEARCH_PATHS} $ENV{CUDA_INC_PATH})
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SET(OPENCL_LIBRARY_64_SEARCH_PATHS ${OPENCL_LIBRARY_64_SEARCH_PATHS} $ENV{CUDA_PATH}/lib/x64/)
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SET(OPENCL_LIBRARY_SEARCH_PATHS ${OPENCL_LIBRARY_SEARCH_PATHS} $ENV{CUDA_PATH}/lib/Win32/)
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ENDIF()
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# Intel SDK
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IF (DEFINED ENV{INTELOCSDKROOT})
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SET(OPENCL_INCLUDE_SEARCH_PATHS ${OPENCL_INCLUDE_SEARCH_PATHS} $ENV{INTELOCSDKROOT}/include)
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SET(OPENCL_LIBRARY_64_SEARCH_PATHS ${OPENCL_LIBRARY_64_SEARCH_PATHS} $ENV{INTELOCSDKROOT}/lib/x64)
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SET(OPENCL_LIBRARY_SEARCH_PATHS ${OPENCL_LIBRARY_SEARCH_PATHS} $ENV{INTELOCSDKROOT}/lib/x86)
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ENDIF()
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# AMD SDK
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IF (DEFINED ENV{AMDAPPSDKROOT})
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SET(OPENCL_INCLUDE_SEARCH_PATHS ${OPENCL_INCLUDE_SEARCH_PATHS} $ENV{AMDAPPSDKROOT}/include)
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SET(OPENCL_LIBRARY_64_SEARCH_PATHS ${OPENCL_LIBRARY_64_SEARCH_PATHS} $ENV{AMDAPPSDKROOT}/lib/x86_64)
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SET(OPENCL_LIBRARY_SEARCH_PATHS ${OPENCL_LIBRARY_SEARCH_PATHS} $ENV{AMDAPPSDKROOT}/lib/x86)
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ENDIF()
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# Override search paths with OpenCL_INCPATH env variable
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IF (DEFINED ENV{OpenCL_INCPATH})
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SET(OPENCL_INCLUDE_SEARCH_PATHS $ENV{OpenCL_INCPATH})
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ENDIF ()
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# Override search paths with OpenCL_LIBPATH env variable
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IF (DEFINED ENV{OpenCL_LIBPATH})
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SET(OPENCL_LIBRARY_SEARCH_PATHS $ENV{OpenCL_LIBPATH})
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SET(OPENCL_LIBRARY_64_SEARCH_PATHS $ENV{OpenCL_LIBPATH})
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ENDIF ()
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FIND_PATH(OPENCL_INCLUDE_DIRS CL/cl.h PATHS ${OPENCL_INCLUDE_SEARCH_PATHS})
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FIND_PATH(_OPENCL_CPP_INCLUDE_DIRS CL/cl.hpp PATHS ${OPENCL_INCLUDE_SEARCH_PATHS})
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FIND_LIBRARY(_OPENCL_32_LIBRARIES OpenCL.lib HINTS ${OPENCL_LIBRARY_SEARCH_PATHS} PATHS ${OPENCL_LIB_DIR} ENV PATH)
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FIND_LIBRARY(_OPENCL_64_LIBRARIES OpenCL.lib HINTS ${OPENCL_LIBRARY_64_SEARCH_PATHS} PATHS ${OPENCL_LIB_DIR} ENV PATH)
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# Check if 64bit or 32bit versions links fine
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SET (_OPENCL_VERSION_SOURCE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/openclversion.c")
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#SET (_OPENCL_VERSION_SOURCE "${CMAKE_BINARY_DIR}/test.c")
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FILE (WRITE "${_OPENCL_VERSION_SOURCE}"
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"
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#if __APPLE__
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#include <OpenCL/cl.h>
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#else /* !__APPLE__ */
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#include <CL/cl.h>
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#endif /* __APPLE__ */
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int main()
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{
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cl_int result;
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cl_platform_id id;
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result = clGetPlatformIDs(1, &id, NULL);
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return result != CL_SUCCESS;
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}
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")
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TRY_COMPILE(_OPENCL_64_COMPILE_SUCCESS ${CMAKE_BINARY_DIR} "${_OPENCL_VERSION_SOURCE}"
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CMAKE_FLAGS
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"-DINCLUDE_DIRECTORIES:STRING=${OPENCL_INCLUDE_DIRS}"
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CMAKE_FLAGS
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"-DLINK_LIBRARIES:STRING=${_OPENCL_64_LIBRARIES}"
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)
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IF(_OPENCL_64_COMPILE_SUCCESS)
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message(STATUS "OpenCL 64bit lib found.")
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SET(OPENCL_LIBRARIES ${_OPENCL_64_LIBRARIES})
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ELSE()
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TRY_COMPILE(_OPENCL_32_COMPILE_SUCCESS ${CMAKE_BINARY_DIR} "${_OPENCL_VERSION_SOURCE}"
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CMAKE_FLAGS
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"-DINCLUDE_DIRECTORIES:STRING=${OPENCL_INCLUDE_DIRS}"
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CMAKE_FLAGS
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"-DLINK_LIBRARIES:STRING=${_OPENCL_32_LIBRARIES}"
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)
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IF(_OPENCL_32_COMPILE_SUCCESS)
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message(STATUS "OpenCL 32bit lib found.")
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SET(OPENCL_LIBRARIES ${_OPENCL_32_LIBRARIES})
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ELSE()
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message(STATUS "Couldn't link opencl..")
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ENDIF()
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ENDIF()
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ELSE (WIN32)
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IF (CYGWIN)
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SET (CMAKE_FIND_LIBRARY_SUFFIXES .lib)
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SET (OCL_LIB_SUFFIX .lib)
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ENDIF (CYGWIN)
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# Unix style platforms
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FIND_LIBRARY(OPENCL_LIBRARIES OpenCL${OCL_LIB_SUFFIX}
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PATHS ENV LD_LIBRARY_PATH ENV OpenCL_LIBPATH
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)
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GET_FILENAME_COMPONENT(OPENCL_LIB_DIR ${OPENCL_LIBRARIES} PATH)
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GET_FILENAME_COMPONENT(_OPENCL_INC_CAND ${OPENCL_LIB_DIR}/../../include ABSOLUTE)
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# The AMD SDK currently does not place its headers
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# in /usr/include, therefore also search relative
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# to the library
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FIND_PATH(OPENCL_INCLUDE_DIRS CL/cl.h PATHS ${_OPENCL_INC_CAND} "/usr/local/cuda/include" "/opt/AMDAPP/include" ENV OpenCL_INCPATH)
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FIND_PATH(_OPENCL_CPP_INCLUDE_DIRS CL/cl.hpp PATHS ${_OPENCL_INC_CAND} "/usr/local/cuda/include" "/opt/AMDAPP/include" ENV OpenCL_INCPATH)
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ENDIF (WIN32)
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ENDIF (APPLE)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenCL DEFAULT_MSG OPENCL_LIBRARIES OPENCL_INCLUDE_DIRS)
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IF(_OPENCL_CPP_INCLUDE_DIRS)
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SET( OPENCL_HAS_CPP_BINDINGS TRUE )
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LIST( APPEND OPENCL_INCLUDE_DIRS ${_OPENCL_CPP_INCLUDE_DIRS} )
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# This is often the same, so clean up
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LIST( REMOVE_DUPLICATES OPENCL_INCLUDE_DIRS )
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ENDIF(_OPENCL_CPP_INCLUDE_DIRS)
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MARK_AS_ADVANCED(
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OPENCL_INCLUDE_DIRS
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)
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@ -0,0 +1,43 @@
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#include <iostream>
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#include <vector>
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#include <CL/cl.h>
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int main()
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{
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cl_int error;
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cl_uint platformIdCount = 0;
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clGetPlatformIDs (0, nullptr, &platformIdCount);
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std::vector<cl_platform_id> platformIds (platformIdCount);
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clGetPlatformIDs (platformIdCount, platformIds.data(), nullptr);
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std::cout << "Platform count: " << platformIdCount << std::endl;
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cl_uint deviceIdCount = 0;
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clGetDeviceIDs (platformIds [0], CL_DEVICE_TYPE_ALL, 0, nullptr,
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&deviceIdCount);
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std::cout << "Device in Platform 0 count: " << deviceIdCount << std::endl;
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std::vector<cl_device_id> deviceIds (deviceIdCount);
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clGetDeviceIDs (platformIds [0], CL_DEVICE_TYPE_ALL, deviceIdCount,
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deviceIds.data (), nullptr);
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const cl_context_properties contextProperties [] =
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{
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CL_CONTEXT_PLATFORM,
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reinterpret_cast<cl_context_properties> (platformIds [0]),
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0, 0
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};
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cl_context context = clCreateContext (
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contextProperties, deviceIdCount,
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deviceIds.data (), nullptr,
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nullptr, &error);
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return 0;
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}
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