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178 lines
6.2 KiB
CMake
178 lines
6.2 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#.rst:
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# FindCUDNN
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# -------
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#
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# Find CUDNN library
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#
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# Valiables that affect result:
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# <VERSION>, <REQUIRED>, <QUIETLY>: as usual
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#
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# <EXACT> : as usual, plus we do find '5.1' version if you wanted '5'
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# (not if you wanted '5.0', as usual)
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#
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# Result variables
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# ^^^^^^^^^^^^^^^^
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#
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# This module will set the following variables in your project:
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#
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# ``CUDNN_INCLUDE``
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# where to find cudnn.h.
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# ``CUDNN_LIBRARY``
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# the libraries to link against to use CUDNN.
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# ``CUDNN_FOUND``
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# If false, do not try to use CUDNN.
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# ``CUDNN_VERSION``
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# Version of the CUDNN library we looked for
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#
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# Exported functions
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# ^^^^^^^^^^^^^^^^
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# function(CUDNN_INSTALL version __dest_libdir [__dest_incdir])
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# This function will try to download and install CUDNN.
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# CUDNN5 and CUDNN6 are supported.
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#
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#
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function(CUDNN_INSTALL version dest_libdir dest_incdir dest_bindir)
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message(STATUS "CUDNN_INSTALL: Installing CUDNN ${version}, lib:${dest_libdir}, inc:${dest_incdir}, bin:${dest_bindir}")
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string(REGEX REPLACE "-rc$" "" version_base "${version}")
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set(tar_libdir cuda/lib64)
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set(tar_incdir cuda/include)
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if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
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set(url_extension tgz)
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if("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64")
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set(url_arch_name linux-x64 )
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elseif("${CMAKE_SYSTEM_PROCESSOR}" MATCHES "ppc")
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set(url_arch_name linux-ppc64le )
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# TX1 has to be installed via JetPack
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endif()
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elseif (APPLE)
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set(url_extension tgz)
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set(tar_libdir cuda/lib)
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set(url_arch_name osx-x64)
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elseif(WIN32)
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set(url_extension zip)
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set(tar_bindir cuda/bin)
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set(tar_libdir cuda/lib/x64)
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if(CMAKE_SYSTEM_VERSION MATCHES "10")
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set(url_arch_name windows10-x64)
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else()
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set(url_arch_name windows7-x64)
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endif()
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endif()
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# Download and install CUDNN locally if not found on the system
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if(url_arch_name)
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set(download_dir ${CMAKE_CURRENT_BINARY_DIR}/downloads/cudnn${version})
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file(MAKE_DIRECTORY ${download_dir})
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set(cudnn_filename cudnn-${CUDA_VERSION}-${url_arch_name}-v${version}.${url_extension})
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set(base_url http://developer.download.nvidia.com/compute/redist/cudnn)
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set(cudnn_url ${base_url}/v${version_base}/${cudnn_filename})
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set(cudnn_file ${download_dir}/${cudnn_filename})
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if(NOT EXISTS ${cudnn_file})
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message(STATUS "Downloading CUDNN library from NVIDIA...")
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file(DOWNLOAD ${cudnn_url} ${cudnn_file}
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SHOW_PROGRESS STATUS cudnn_status
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)
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execute_process(COMMAND ${CMAKE_COMMAND} -E tar xzvf ${cudnn_file} WORKING_DIRECTORY ${download_dir} RESULT_VARIABLE cudnn_status)
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if(NOT "${cudnn_status}" MATCHES "0")
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message(STATUS "Was not able to download CUDNN from ${cudnn_url}. Please install CuDNN manually from https://developer.nvidia.com/cuDNN")
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endif()
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endif()
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if(dest_bindir AND tar_bindir)
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file(COPY ${download_dir}/${tar_bindir}/ DESTINATION ${dest_bindir})
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endif()
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if(dest_incdir)
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file(COPY ${download_dir}/${tar_incdir}/ DESTINATION ${dest_incdir})
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endif()
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file(COPY ${download_dir}/${tar_libdir}/ DESTINATION ${dest_libdir} )
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get_filename_component(dest_dir ${dest_libdir} DIRECTORY)
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set(CUDNN_ROOT_DIR ${dest_dir} PARENT_SCOPE)
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unset(CUDNN_LIBRARY CACHE)
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unset(CUDNN_INCLUDE_DIR CACHE)
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endif(url_arch_name)
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endfunction()
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#####################################################
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find_package(PkgConfig)
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pkg_check_modules(PC_CUDNN QUIET CUDNN)
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get_filename_component(__libpath_cudart "${CUDA_CUDART_LIBRARY}" PATH)
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# We use major only in library search as major/minor is not entirely consistent among platforms.
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# Also, looking for exact minor version of .so is in general not a good idea.
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# More strict enforcement of minor/patch version is done if/when the header file is examined.
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if(CUDNN_FIND_VERSION_EXACT)
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SET(__cudnn_ver_suffix ".${CUDNN_FIND_VERSION_MAJOR}")
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endif()
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find_library(CUDNN_LIBRARY
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NAMES libcudnn.so${__cudnn_ver_suffix} libcudnn${__cudnn_ver_suffix}.dylib cudnn
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PATHS $ENV{LD_LIBRARY_PATH} ${__libpath_cudart} ${CUDNN_ROOT_DIR} ${PC_CUDNN_LIBRARY_DIRS} ${CMAKE_INSTALL_PREFIX}
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PATH_SUFFIXES lib lib64 bin
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DOC "CUDNN library." )
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if(CUDNN_LIBRARY)
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SET(CUDNN_MAJOR_VERSION ${CUDNN_FIND_VERSION_MAJOR})
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set(CUDNN_VERSION ${CUDNN_MAJOR_VERSION})
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get_filename_component(__found_cudnn_root ${CUDNN_LIBRARY} PATH)
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find_path(CUDNN_INCLUDE_DIR
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NAMES cudnn.h
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HINTS ${PC_CUDNN_INCLUDE_DIRS} ${CUDNN_ROOT_DIR} ${CUDA_TOOLKIT_INCLUDE} ${__found_cudnn_root}
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PATH_SUFFIXES include
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DOC "Path to CUDNN include directory." )
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endif()
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if(CUDNN_LIBRARY AND CUDNN_INCLUDE_DIR)
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file(READ ${CUDNN_INCLUDE_DIR}/cudnn.h CUDNN_VERSION_FILE_CONTENTS)
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string(REGEX MATCH "define CUDNN_MAJOR * +([0-9]+)"
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CUDNN_MAJOR_VERSION "${CUDNN_VERSION_FILE_CONTENTS}")
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string(REGEX REPLACE "define CUDNN_MAJOR * +([0-9]+)" "\\1"
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CUDNN_MAJOR_VERSION "${CUDNN_MAJOR_VERSION}")
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string(REGEX MATCH "define CUDNN_MINOR * +([0-9]+)"
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CUDNN_MINOR_VERSION "${CUDNN_VERSION_FILE_CONTENTS}")
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string(REGEX REPLACE "define CUDNN_MINOR * +([0-9]+)" "\\1"
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CUDNN_MINOR_VERSION "${CUDNN_MINOR_VERSION}")
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string(REGEX MATCH "define CUDNN_PATCHLEVEL * +([0-9]+)"
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CUDNN_PATCH_VERSION "${CUDNN_VERSION_FILE_CONTENTS}")
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string(REGEX REPLACE "define CUDNN_PATCHLEVEL * +([0-9]+)" "\\1"
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CUDNN_PATCH_VERSION "${CUDNN_PATCH_VERSION}")
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set(CUDNN_VERSION ${CUDNN_MAJOR_VERSION}.${CUDNN_MINOR_VERSION})
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endif()
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if(CUDNN_MAJOR_VERSION)
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## Fixing the case where 5.1 does not fit 'exact' 5.
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if(CUDNN_FIND_VERSION_EXACT AND NOT CUDNN_FIND_VERSION_MINOR)
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if("${CUDNN_MAJOR_VERSION}" STREQUAL "${CUDNN_FIND_VERSION_MAJOR}")
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set(CUDNN_VERSION ${CUDNN_FIND_VERSION})
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endif()
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endif()
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else()
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# Try to set CUDNN version from config file
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set(CUDNN_VERSION ${PC_CUDNN_CFLAGS_OTHER})
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endif()
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find_package_handle_standard_args(
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CUDNN
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FOUND_VAR CUDNN_FOUND
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REQUIRED_VARS CUDNN_LIBRARY
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VERSION_VAR CUDNN_VERSION
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)
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if(CUDNN_FOUND)
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set(CUDNN_LIBRARIES ${CUDNN_LIBRARY})
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set(CUDNN_INCLUDE_DIRS ${CUDNN_INCLUDE_DIR})
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set(CUDNN_DEFINITIONS ${PC_CUDNN_CFLAGS_OTHER})
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endif()
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