if(WIN32 AND NOT MSVC) message(STATUS "CUDA compilation is disabled (due to only Visual Studio compiler supported on your platform).") return() endif() if(CMAKE_COMPILER_IS_GNUCXX AND NOT APPLE AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang") message(STATUS "CUDA compilation is disabled (due to Clang unsupported on your platform).") return() endif() set(CMAKE_MODULE_PATH "${OpenCV_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH}) foreach(var INCLUDE LIBRARY PROGRAM) set(__old_frpm_${var} "${CMAKE_FIND_ROOT_PATH_MODE_${var}}") endforeach() set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY BOTH) set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER) find_package(CUDA "${MIN_VER_CUDA}" QUIET) foreach(var INCLUDE LIBRARY PROGRAM) set(CMAKE_FIND_ROOT_PATH_MODE_${var} "${__old_frpm_${var}}") endforeach() list(REMOVE_AT CMAKE_MODULE_PATH 0) if(CUDA_FOUND) set(HAVE_CUDA 1) if(WITH_CUFFT) set(HAVE_CUFFT 1) endif() if(WITH_CUBLAS) set(HAVE_CUBLAS 1) endif() if(WITH_NVCUVID) find_cuda_helper_libs(nvcuvid) if(WIN32) find_cuda_helper_libs(nvcuvenc) endif() set(HAVE_NVCUVID 1) endif() message(STATUS "CUDA detected: " ${CUDA_VERSION}) set(_generations "Fermi" "Kepler") if(NOT CMAKE_CROSSCOMPILING) list(APPEND _generations "Auto") endif() set(CUDA_GENERATION "" CACHE STRING "Build CUDA device code only for specific GPU architecture. Leave empty to build for all architectures.") if( CMAKE_VERSION VERSION_GREATER "2.8" ) set_property( CACHE CUDA_GENERATION PROPERTY STRINGS "" ${_generations} ) endif() if(CUDA_GENERATION) if(NOT ";${_generations};" MATCHES ";${CUDA_GENERATION};") string(REPLACE ";" ", " _generations "${_generations}") message(FATAL_ERROR "ERROR: ${_generations} Generations are suppered.") endif() unset(CUDA_ARCH_BIN CACHE) unset(CUDA_ARCH_PTX CACHE) endif() set(__cuda_arch_ptx "") if(CUDA_GENERATION STREQUAL "Fermi") set(__cuda_arch_bin "2.0 2.1(2.0)") elseif(CUDA_GENERATION STREQUAL "Kepler") if(${CUDA_VERSION} VERSION_LESS "5.0") set(__cuda_arch_bin "3.0") else() set(__cuda_arch_bin "3.0 3.5") endif() elseif(CUDA_GENERATION STREQUAL "Auto") execute_process( COMMAND "${CUDA_NVCC_EXECUTABLE}" "${OpenCV_SOURCE_DIR}/cmake/checks/OpenCVDetectCudaArch.cu" "--run" WORKING_DIRECTORY "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/" RESULT_VARIABLE _nvcc_res OUTPUT_VARIABLE _nvcc_out ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE) if(NOT _nvcc_res EQUAL 0) message(STATUS "Automatic detection of CUDA generation failed. Going to build for all known architectures.") else() set(__cuda_arch_bin "${_nvcc_out}") string(REPLACE "2.1" "2.1(2.0)" __cuda_arch_bin "${__cuda_arch_bin}") endif() endif() if(NOT DEFINED __cuda_arch_bin) if(ANDROID) set(__cuda_arch_bin "3.2") set(__cuda_arch_ptx "") else() if(${CUDA_VERSION} VERSION_LESS "5.0") set(__cuda_arch_bin "1.1 1.2 1.3 2.0 2.1(2.0) 3.0 5.0") else() if(${CUDA_VERSION} VERSION_LESS "7.0") set(__cuda_arch_bin "1.1 1.2 1.3 2.0 2.1(2.0) 3.0 3.5 5.0") else() set(__cuda_arch_bin "2.0 2.1(2.0) 3.0 3.5 5.0") endif() endif() set(__cuda_arch_ptx "3.0") endif() endif() set(CUDA_ARCH_BIN ${__cuda_arch_bin} CACHE STRING "Specify 'real' GPU architectures to build binaries for, BIN(PTX) format is supported") set(CUDA_ARCH_PTX ${__cuda_arch_ptx} CACHE STRING "Specify 'virtual' PTX architectures to build PTX intermediate code for") string(REGEX REPLACE "\\." "" ARCH_BIN_NO_POINTS "${CUDA_ARCH_BIN}") string(REGEX REPLACE "\\." "" ARCH_PTX_NO_POINTS "${CUDA_ARCH_PTX}") # Ckeck if user specified 1.0 compute capability: we don't support it string(REGEX MATCH "1.0" HAS_ARCH_10 "${CUDA_ARCH_BIN} ${CUDA_ARCH_PTX}") set(CUDA_ARCH_BIN_OR_PTX_10 0) if(NOT ${HAS_ARCH_10} STREQUAL "") set(CUDA_ARCH_BIN_OR_PTX_10 1) endif() # NVCC flags to be set set(NVCC_FLAGS_EXTRA "") # These vars will be passed into the templates set(OPENCV_CUDA_ARCH_BIN "") set(OPENCV_CUDA_ARCH_PTX "") set(OPENCV_CUDA_ARCH_FEATURES "") # Tell NVCC to add binaries for the specified GPUs string(REGEX MATCHALL "[0-9()]+" ARCH_LIST "${ARCH_BIN_NO_POINTS}") foreach(ARCH IN LISTS ARCH_LIST) if(ARCH MATCHES "([0-9]+)\\(([0-9]+)\\)") # User explicitly specified PTX for the concrete BIN set(NVCC_FLAGS_EXTRA ${NVCC_FLAGS_EXTRA} -gencode arch=compute_${CMAKE_MATCH_2},code=sm_${CMAKE_MATCH_1}) set(OPENCV_CUDA_ARCH_BIN "${OPENCV_CUDA_ARCH_BIN} ${CMAKE_MATCH_1}") set(OPENCV_CUDA_ARCH_FEATURES "${OPENCV_CUDA_ARCH_FEATURES} ${CMAKE_MATCH_2}") else() # User didn't explicitly specify PTX for the concrete BIN, we assume PTX=BIN set(NVCC_FLAGS_EXTRA ${NVCC_FLAGS_EXTRA} -gencode arch=compute_${ARCH},code=sm_${ARCH}) set(OPENCV_CUDA_ARCH_BIN "${OPENCV_CUDA_ARCH_BIN} ${ARCH}") set(OPENCV_CUDA_ARCH_FEATURES "${OPENCV_CUDA_ARCH_FEATURES} ${ARCH}") endif() endforeach() # Tell NVCC to add PTX intermediate code for the specified architectures string(REGEX MATCHALL "[0-9]+" ARCH_LIST "${ARCH_PTX_NO_POINTS}") foreach(ARCH IN LISTS ARCH_LIST) set(NVCC_FLAGS_EXTRA ${NVCC_FLAGS_EXTRA} -gencode arch=compute_${ARCH},code=compute_${ARCH}) set(OPENCV_CUDA_ARCH_PTX "${OPENCV_CUDA_ARCH_PTX} ${ARCH}") set(OPENCV_CUDA_ARCH_FEATURES "${OPENCV_CUDA_ARCH_FEATURES} ${ARCH}") endforeach() # These vars will be processed in other scripts set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} ${NVCC_FLAGS_EXTRA}) set(OpenCV_CUDA_CC "${NVCC_FLAGS_EXTRA}") if(ANDROID) set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} "-Xptxas;-dlcm=ca") set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} "-target-os-variant=Android") endif() message(STATUS "CUDA NVCC target flags: ${CUDA_NVCC_FLAGS}") OCV_OPTION(CUDA_FAST_MATH "Enable --use_fast_math for CUDA compiler " OFF) if(CUDA_FAST_MATH) set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} --use_fast_math) endif() mark_as_advanced(CUDA_BUILD_CUBIN CUDA_BUILD_EMULATION CUDA_VERBOSE_BUILD CUDA_SDK_ROOT_DIR) macro(ocv_cuda_compile VAR) foreach(var CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_DEBUG) set(${var}_backup_in_cuda_compile_ "${${var}}") # we remove /EHa as it generates warnings under windows string(REPLACE "/EHa" "" ${var} "${${var}}") # we remove -ggdb3 flag as it leads to preprocessor errors when compiling CUDA files (CUDA 4.1) string(REPLACE "-ggdb3" "" ${var} "${${var}}") # we remove -Wsign-promo as it generates warnings under linux string(REPLACE "-Wsign-promo" "" ${var} "${${var}}") # we remove -Wno-sign-promo as it generates warnings under linux string(REPLACE "-Wno-sign-promo" "" ${var} "${${var}}") # we remove -Wno-delete-non-virtual-dtor because it's used for C++ compiler # but NVCC uses C compiler by default string(REPLACE "-Wno-delete-non-virtual-dtor" "" ${var} "${${var}}") # we remove -frtti because it's used for C++ compiler # but NVCC uses C compiler by default string(REPLACE "-frtti" "" ${var} "${${var}}") string(REPLACE "-fvisibility-inlines-hidden" "" ${var} "${${var}}") endforeach() if(BUILD_SHARED_LIBS) set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -Xcompiler -DCVAPI_EXPORTS) endif() if(UNIX OR APPLE) set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -Xcompiler -fPIC) endif() if(APPLE) set(CUDA_NVCC_FLAGS ${CUDA_NVCC_FLAGS} -Xcompiler -fno-finite-math-only) endif() # disabled because of multiple warnings during building nvcc auto generated files if(CMAKE_COMPILER_IS_GNUCXX AND CMAKE_GCC_REGEX_VERSION VERSION_GREATER "4.6.0") ocv_warnings_disable(CMAKE_CXX_FLAGS -Wunused-but-set-variable) endif() CUDA_COMPILE(${VAR} ${ARGN}) foreach(var CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_RELEASE CMAKE_CXX_FLAGS_DEBUG) set(${var} "${${var}_backup_in_cuda_compile_}") unset(${var}_backup_in_cuda_compile_) endforeach() endmacro() else() unset(CUDA_ARCH_BIN CACHE) unset(CUDA_ARCH_PTX CACHE) endif() if(HAVE_CUDA) set(CUDA_LIBS_PATH "") foreach(p ${CUDA_LIBRARIES} ${CUDA_npp_LIBRARY}) get_filename_component(_tmp ${p} PATH) list(APPEND CUDA_LIBS_PATH ${_tmp}) endforeach() if(HAVE_CUBLAS) foreach(p ${CUDA_cublas_LIBRARY}) get_filename_component(_tmp ${p} PATH) list(APPEND CUDA_LIBS_PATH ${_tmp}) endforeach() endif() if(HAVE_CUFFT) foreach(p ${CUDA_cufft_LIBRARY}) get_filename_component(_tmp ${p} PATH) list(APPEND CUDA_LIBS_PATH ${_tmp}) endforeach() endif() list(REMOVE_DUPLICATES CUDA_LIBS_PATH) link_directories(${CUDA_LIBS_PATH}) set(CUDA_LIBRARIES_ABS ${CUDA_LIBRARIES}) ocv_convert_to_lib_name(CUDA_LIBRARIES ${CUDA_LIBRARIES}) set(CUDA_npp_LIBRARY_ABS ${CUDA_npp_LIBRARY}) ocv_convert_to_lib_name(CUDA_npp_LIBRARY ${CUDA_npp_LIBRARY}) if(HAVE_CUBLAS) set(CUDA_cublas_LIBRARY_ABS ${CUDA_cublas_LIBRARY}) ocv_convert_to_lib_name(CUDA_cublas_LIBRARY ${CUDA_cublas_LIBRARY}) endif() if(HAVE_CUFFT) set(CUDA_cufft_LIBRARY_ABS ${CUDA_cufft_LIBRARY}) ocv_convert_to_lib_name(CUDA_cufft_LIBRARY ${CUDA_cufft_LIBRARY}) endif() endif()