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Diffstat (limited to 'share/cmake-3.22/Modules/FindCUDAToolkit.cmake')
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diff --git a/share/cmake-3.22/Modules/FindCUDAToolkit.cmake b/share/cmake-3.22/Modules/FindCUDAToolkit.cmake new file mode 100644 index 0000000..d22a676 --- /dev/null +++ b/share/cmake-3.22/Modules/FindCUDAToolkit.cmake @@ -0,0 +1,976 @@ +# Distributed under the OSI-approved BSD 3-Clause License. See accompanying +# file Copyright.txt or https://cmake.org/licensing for details. + +#[=======================================================================[.rst: +FindCUDAToolkit +--------------- + +.. versionadded:: 3.17 + +This script locates the NVIDIA CUDA toolkit and the associated libraries, but +does not require the ``CUDA`` language be enabled for a given project. This +module does not search for the NVIDIA CUDA Samples. + +.. versionadded:: 3.19 + QNX support. + +Search Behavior +^^^^^^^^^^^^^^^ + +The CUDA Toolkit search behavior uses the following order: + +1. If the ``CUDA`` language has been enabled we will use the directory + containing the compiler as the first search location for ``nvcc``. + +2. If the ``CUDAToolkit_ROOT`` cmake configuration variable (e.g., + ``-DCUDAToolkit_ROOT=/some/path``) *or* environment variable is defined, it + will be searched. If both an environment variable **and** a + configuration variable are specified, the *configuration* variable takes + precedence. + + The directory specified here must be such that the executable ``nvcc`` or + the appropriate ``version.txt`` file can be found underneath the specified + directory. + +3. If the CUDA_PATH environment variable is defined, it will be searched + for ``nvcc``. + +4. The user's path is searched for ``nvcc`` using :command:`find_program`. If + this is found, no subsequent search attempts are performed. Users are + responsible for ensuring that the first ``nvcc`` to show up in the path is + the desired path in the event that multiple CUDA Toolkits are installed. + +5. On Unix systems, if the symbolic link ``/usr/local/cuda`` exists, this is + used. No subsequent search attempts are performed. No default symbolic link + location exists for the Windows platform. + +6. The platform specific default install locations are searched. If exactly one + candidate is found, this is used. The default CUDA Toolkit install locations + searched are: + + +-------------+-------------------------------------------------------------+ + | Platform | Search Pattern | + +=============+=============================================================+ + | macOS | ``/Developer/NVIDIA/CUDA-X.Y`` | + +-------------+-------------------------------------------------------------+ + | Other Unix | ``/usr/local/cuda-X.Y`` | + +-------------+-------------------------------------------------------------+ + | Windows | ``C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\vX.Y`` | + +-------------+-------------------------------------------------------------+ + + Where ``X.Y`` would be a specific version of the CUDA Toolkit, such as + ``/usr/local/cuda-9.0`` or + ``C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v9.0`` + + .. note:: + + When multiple CUDA Toolkits are installed in the default location of a + system (e.g., both ``/usr/local/cuda-9.0`` and ``/usr/local/cuda-10.0`` + exist but the ``/usr/local/cuda`` symbolic link does **not** exist), this + package is marked as **not** found. + + There are too many factors involved in making an automatic decision in + the presence of multiple CUDA Toolkits being installed. In this + situation, users are encouraged to either (1) set ``CUDAToolkit_ROOT`` or + (2) ensure that the correct ``nvcc`` executable shows up in ``$PATH`` for + :command:`find_program` to find. + +Arguments +^^^^^^^^^ + +``[<version>]`` + The ``[<version>]`` argument requests a version with which the package found + should be compatible. See :ref:`find_package version format <FIND_PACKAGE_VERSION_FORMAT>` + for more details. + +Options +^^^^^^^ + +``REQUIRED`` + If specified, configuration will error if a suitable CUDA Toolkit is not + found. + +``QUIET`` + If specified, the search for a suitable CUDA Toolkit will not produce any + messages. + +``EXACT`` + If specified, the CUDA Toolkit is considered found only if the exact + ``VERSION`` specified is recovered. + +Imported targets +^^^^^^^^^^^^^^^^ + +An :ref:`imported target <Imported targets>` named ``CUDA::toolkit`` is provided. + +This module defines :prop_tgt:`IMPORTED` targets for each +of the following libraries that are part of the CUDAToolkit: + +- :ref:`CUDA Runtime Library<cuda_toolkit_rt_lib>` +- :ref:`CUDA Driver Library<cuda_toolkit_driver_lib>` +- :ref:`cuBLAS<cuda_toolkit_cuBLAS>` +- :ref:`cuFFT<cuda_toolkit_cuFFT>` +- :ref:`cuRAND<cuda_toolkit_cuRAND>` +- :ref:`cuSOLVER<cuda_toolkit_cuSOLVER>` +- :ref:`cuSPARSE<cuda_toolkit_cuSPARSE>` +- :ref:`cuPTI<cuda_toolkit_cupti>` +- :ref:`NPP<cuda_toolkit_NPP>` +- :ref:`nvBLAS<cuda_toolkit_nvBLAS>` +- :ref:`nvGRAPH<cuda_toolkit_nvGRAPH>` +- :ref:`nvJPEG<cuda_toolkit_nvJPEG>` +- :ref:`nvidia-ML<cuda_toolkit_nvML>` +- :ref:`nvRTC<cuda_toolkit_nvRTC>` +- :ref:`nvToolsExt<cuda_toolkit_nvToolsExt>` +- :ref:`OpenCL<cuda_toolkit_opencl>` +- :ref:`cuLIBOS<cuda_toolkit_cuLIBOS>` + +.. _`cuda_toolkit_rt_lib`: + +CUDA Runtime Library +"""""""""""""""""""" + +The CUDA Runtime library (cudart) are what most applications will typically +need to link against to make any calls such as `cudaMalloc`, and `cudaFree`. + +Targets Created: + +- ``CUDA::cudart`` +- ``CUDA::cudart_static`` + +.. _`cuda_toolkit_driver_lib`: + +CUDA Driver Library +"""""""""""""""""""" + +The CUDA Driver library (cuda) are used by applications that use calls +such as `cuMemAlloc`, and `cuMemFree`. This is generally used by advanced + + +Targets Created: + +- ``CUDA::cuda_driver`` +- ``CUDA::cuda_driver`` + +.. _`cuda_toolkit_cuBLAS`: + +cuBLAS +"""""" + +The `cuBLAS <https://docs.nvidia.com/cuda/cublas/index.html>`_ library. + +Targets Created: + +- ``CUDA::cublas`` +- ``CUDA::cublas_static`` +- ``CUDA::cublasLt`` starting in CUDA 10.1 +- ``CUDA::cublasLt_static`` starting in CUDA 10.1 + +.. _`cuda_toolkit_cuFFT`: + +cuFFT +""""" + +The `cuFFT <https://docs.nvidia.com/cuda/cufft/index.html>`_ library. + +Targets Created: + +- ``CUDA::cufft`` +- ``CUDA::cufftw`` +- ``CUDA::cufft_static`` +- ``CUDA::cufftw_static`` + +cuRAND +"""""" + +The `cuRAND <https://docs.nvidia.com/cuda/curand/index.html>`_ library. + +Targets Created: + +- ``CUDA::curand`` +- ``CUDA::curand_static`` + +.. _`cuda_toolkit_cuSOLVER`: + +cuSOLVER +"""""""" + +The `cuSOLVER <https://docs.nvidia.com/cuda/cusolver/index.html>`_ library. + +Targets Created: + +- ``CUDA::cusolver`` +- ``CUDA::cusolver_static`` + +.. _`cuda_toolkit_cuSPARSE`: + +cuSPARSE +"""""""" + +The `cuSPARSE <https://docs.nvidia.com/cuda/cusparse/index.html>`_ library. + +Targets Created: + +- ``CUDA::cusparse`` +- ``CUDA::cusparse_static`` + +.. _`cuda_toolkit_cupti`: + +cupti +""""" + +The `NVIDIA CUDA Profiling Tools Interface <https://developer.nvidia.com/CUPTI>`_. + +Targets Created: + +- ``CUDA::cupti`` +- ``CUDA::cupti_static`` + +.. _`cuda_toolkit_NPP`: + +NPP +""" + +The `NPP <https://docs.nvidia.com/cuda/npp/index.html>`_ libraries. + +Targets Created: + +- `nppc`: + + - ``CUDA::nppc`` + - ``CUDA::nppc_static`` + +- `nppial`: Arithmetic and logical operation functions in `nppi_arithmetic_and_logical_operations.h` + + - ``CUDA::nppial`` + - ``CUDA::nppial_static`` + +- `nppicc`: Color conversion and sampling functions in `nppi_color_conversion.h` + + - ``CUDA::nppicc`` + - ``CUDA::nppicc_static`` + +- `nppicom`: JPEG compression and decompression functions in `nppi_compression_functions.h` + Removed starting in CUDA 11.0, use :ref:`nvJPEG<cuda_toolkit_nvJPEG>` instead. + + - ``CUDA::nppicom`` + - ``CUDA::nppicom_static`` + +- `nppidei`: Data exchange and initialization functions in `nppi_data_exchange_and_initialization.h` + + - ``CUDA::nppidei`` + - ``CUDA::nppidei_static`` + +- `nppif`: Filtering and computer vision functions in `nppi_filter_functions.h` + + - ``CUDA::nppif`` + - ``CUDA::nppif_static`` + +- `nppig`: Geometry transformation functions found in `nppi_geometry_transforms.h` + + - ``CUDA::nppig`` + - ``CUDA::nppig_static`` + +- `nppim`: Morphological operation functions found in `nppi_morphological_operations.h` + + - ``CUDA::nppim`` + - ``CUDA::nppim_static`` + +- `nppist`: Statistics and linear transform in `nppi_statistics_functions.h` and `nppi_linear_transforms.h` + + - ``CUDA::nppist`` + - ``CUDA::nppist_static`` + +- `nppisu`: Memory support functions in `nppi_support_functions.h` + + - ``CUDA::nppisu`` + - ``CUDA::nppisu_static`` + +- `nppitc`: Threshold and compare operation functions in `nppi_threshold_and_compare_operations.h` + + - ``CUDA::nppitc`` + - ``CUDA::nppitc_static`` + +- `npps`: + + - ``CUDA::npps`` + - ``CUDA::npps_static`` + +.. _`cuda_toolkit_nvBLAS`: + +nvBLAS +"""""" + +The `nvBLAS <https://docs.nvidia.com/cuda/nvblas/index.html>`_ libraries. +This is a shared library only. + +Targets Created: + +- ``CUDA::nvblas`` + +.. _`cuda_toolkit_nvGRAPH`: + +nvGRAPH +""""""" + +The `nvGRAPH <https://docs.nvidia.com/cuda/nvgraph/index.html>`_ library. +Removed starting in CUDA 11.0 + +Targets Created: + +- ``CUDA::nvgraph`` +- ``CUDA::nvgraph_static`` + + +.. _`cuda_toolkit_nvJPEG`: + +nvJPEG +"""""" + +The `nvJPEG <https://docs.nvidia.com/cuda/nvjpeg/index.html>`_ library. +Introduced in CUDA 10. + +Targets Created: + +- ``CUDA::nvjpeg`` +- ``CUDA::nvjpeg_static`` + +.. _`cuda_toolkit_nvRTC`: + +nvRTC +""""" + +The `nvRTC <https://docs.nvidia.com/cuda/nvrtc/index.html>`_ (Runtime Compilation) library. +This is a shared library only. + +Targets Created: + +- ``CUDA::nvrtc`` + +.. _`cuda_toolkit_nvml`: + +nvidia-ML +""""""""" + +The `NVIDIA Management Library <https://developer.nvidia.com/nvidia-management-library-nvml>`_. +This is a shared library only. + +Targets Created: + +- ``CUDA::nvml`` + +.. _`cuda_toolkit_nvToolsExt`: + +nvToolsExt +"""""""""" + +The `NVIDIA Tools Extension <https://docs.nvidia.com/gameworks/content/gameworkslibrary/nvtx/nvidia_tools_extension_library_nvtx.htm>`_. +This is a shared library only. + +Targets Created: + +- ``CUDA::nvToolsExt`` + +.. _`cuda_toolkit_opencl`: + +OpenCL +"""""" + +The `NVIDIA OpenCL Library <https://developer.nvidia.com/opencl>`_. +This is a shared library only. + +Targets Created: + +- ``CUDA::OpenCL`` + +.. _`cuda_toolkit_cuLIBOS`: + +cuLIBOS +""""""" + +The cuLIBOS library is a backend thread abstraction layer library which is +static only. The ``CUDA::cublas_static``, ``CUDA::cusparse_static``, +``CUDA::cufft_static``, ``CUDA::curand_static``, and (when implemented) NPP +libraries all automatically have this dependency linked. + +Target Created: + +- ``CUDA::culibos`` + +**Note**: direct usage of this target by consumers should not be necessary. + +.. _`cuda_toolkit_cuRAND`: + + + +Result variables +^^^^^^^^^^^^^^^^ + +``CUDAToolkit_FOUND`` + A boolean specifying whether or not the CUDA Toolkit was found. + +``CUDAToolkit_VERSION`` + The exact version of the CUDA Toolkit found (as reported by + ``nvcc --version`` or ``version.txt``). + +``CUDAToolkit_VERSION_MAJOR`` + The major version of the CUDA Toolkit. + +``CUDAToolkit_VERSION_MINOR`` + The minor version of the CUDA Toolkit. + +``CUDAToolkit_VERSION_PATCH`` + The patch version of the CUDA Toolkit. + +``CUDAToolkit_BIN_DIR`` + The path to the CUDA Toolkit library directory that contains the CUDA + executable ``nvcc``. + +``CUDAToolkit_INCLUDE_DIRS`` + The path to the CUDA Toolkit ``include`` folder containing the header files + required to compile a project linking against CUDA. + +``CUDAToolkit_LIBRARY_DIR`` + The path to the CUDA Toolkit library directory that contains the CUDA + Runtime library ``cudart``. + +``CUDAToolkit_LIBRARY_ROOT`` + .. versionadded:: 3.18 + + The path to the CUDA Toolkit directory containing the nvvm directory and + version.txt. + +``CUDAToolkit_TARGET_DIR`` + The path to the CUDA Toolkit directory including the target architecture + when cross-compiling. When not cross-compiling this will be equivalent to + the parent directory of ``CUDAToolkit_BIN_DIR``. + +``CUDAToolkit_NVCC_EXECUTABLE`` + The path to the NVIDIA CUDA compiler ``nvcc``. Note that this path may + **not** be the same as + :variable:`CMAKE_CUDA_COMPILER <CMAKE_<LANG>_COMPILER>`. ``nvcc`` must be + found to determine the CUDA Toolkit version as well as determining other + features of the Toolkit. This variable is set for the convenience of + modules that depend on this one. + + +#]=======================================================================] + +# NOTE: much of this was simply extracted from FindCUDA.cmake. + +# James Bigler, NVIDIA Corp (nvidia.com - jbigler) +# Abe Stephens, SCI Institute -- http://www.sci.utah.edu/~abe/FindCuda.html +# +# Copyright (c) 2008 - 2009 NVIDIA Corporation. All rights reserved. +# +# Copyright (c) 2007-2009 +# Scientific Computing and Imaging Institute, University of Utah +# +# This code is licensed under the MIT License. See the FindCUDA.cmake script +# for the text of the license. + +# The MIT License +# +# License for the specific language governing rights and limitations under +# Permission is hereby granted, free of charge, to any person obtaining a +# copy of this software and associated documentation files (the "Software"), +# to deal in the Software without restriction, including without limitation +# the rights to use, copy, modify, merge, publish, distribute, sublicense, +# and/or sell copies of the Software, and to permit persons to whom the +# Software is furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included +# in all copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +# DEALINGS IN THE SOFTWARE. +# +############################################################################### + +# The toolkit is located during compiler detection for CUDA and stored in CMakeCUDACompiler.cmake as +# CMAKE_CUDA_COMPILER_TOOLKIT_ROOT and CMAKE_CUDA_COMPILER_LIBRARY_ROOT. +# We compute the rest based on those here to avoid re-searching and to avoid finding a possibly +# different installation. +if(CMAKE_CUDA_COMPILER_TOOLKIT_ROOT) + set(CUDAToolkit_ROOT_DIR "${CMAKE_CUDA_COMPILER_TOOLKIT_ROOT}") + set(CUDAToolkit_LIBRARY_ROOT "${CMAKE_CUDA_COMPILER_LIBRARY_ROOT}") + set(CUDAToolkit_BIN_DIR "${CUDAToolkit_ROOT_DIR}/bin") + set(CUDAToolkit_NVCC_EXECUTABLE "${CUDAToolkit_BIN_DIR}/nvcc${CMAKE_EXECUTABLE_SUFFIX}") +else() + + function(_CUDAToolkit_find_root_dir ) + cmake_parse_arguments(arg "" "" "SEARCH_PATHS;FIND_FLAGS" ${ARGN}) + + + if(NOT CUDAToolkit_BIN_DIR) + if(NOT CUDAToolkit_SENTINEL_FILE) + find_program(CUDAToolkit_NVCC_EXECUTABLE + NAMES nvcc nvcc.exe + PATHS ${arg_SEARCH_PATHS} + ${arg_FIND_FLAGS} + ) + endif() + + if(NOT CUDAToolkit_NVCC_EXECUTABLE) + find_file(CUDAToolkit_SENTINEL_FILE + NAMES version.txt + PATHS ${arg_SEARCH_PATHS} + NO_DEFAULT_PATH + ) + endif() + + if(EXISTS "${CUDAToolkit_NVCC_EXECUTABLE}") + # If NVCC exists then invoke it to find the toolkit location. + # This allows us to support wrapper scripts (e.g. ccache or colornvcc), CUDA Toolkit, + # NVIDIA HPC SDK, and distro's splayed layouts + execute_process(COMMAND ${CUDAToolkit_NVCC_EXECUTABLE} "-v" "__cmake_determine_cuda" + OUTPUT_VARIABLE _CUDA_NVCC_OUT ERROR_VARIABLE _CUDA_NVCC_OUT) + if(_CUDA_NVCC_OUT MATCHES "\\#\\$ TOP=([^\r\n]*)") + get_filename_component(CUDAToolkit_BIN_DIR "${CMAKE_MATCH_1}/bin" ABSOLUTE) + else() + get_filename_component(CUDAToolkit_BIN_DIR "${CUDAToolkit_NVCC_EXECUTABLE}" DIRECTORY) + endif() + unset(_CUDA_NVCC_OUT) + + mark_as_advanced(CUDAToolkit_BIN_DIR) + set(CUDAToolkit_BIN_DIR "${CUDAToolkit_BIN_DIR}" CACHE PATH "" FORCE) + endif() + + if(CUDAToolkit_SENTINEL_FILE) + get_filename_component(CUDAToolkit_BIN_DIR ${CUDAToolkit_SENTINEL_FILE} DIRECTORY ABSOLUTE) + set(CUDAToolkit_BIN_DIR "${CUDAToolkit_BIN_DIR}/bin") + + set(CUDAToolkit_BIN_DIR "${CUDAToolkit_BIN_DIR}" CACHE PATH "" FORCE) + mark_as_advanced(CUDAToolkit_BIN_DIR) + endif() + endif() + + if(CUDAToolkit_BIN_DIR) + get_filename_component(CUDAToolkit_ROOT_DIR ${CUDAToolkit_BIN_DIR} DIRECTORY ABSOLUTE) + set(CUDAToolkit_ROOT_DIR "${CUDAToolkit_ROOT_DIR}" PARENT_SCOPE) + endif() + + endfunction() + + function(_CUDAToolkit_find_version_file result_variable) + # We first check for a non-scattered installation to prefer it over a scattered installation. + if(CUDAToolkit_ROOT AND EXISTS "${CUDAToolkit_ROOT}/version.txt") + set(${result_variable} "${CUDAToolkit_ROOT}/version.txt" PARENT_SCOPE) + elseif(CUDAToolkit_ROOT_DIR AND EXISTS "${CUDAToolkit_ROOT_DIR}/version.txt") + set(${result_variable} "${CUDAToolkit_ROOT_DIR}/version.txt" PARENT_SCOPE) + elseif(CMAKE_SYSROOT_LINK AND EXISTS "${CMAKE_SYSROOT_LINK}/usr/lib/cuda/version.txt") + set(${result_variable} "${CMAKE_SYSROOT_LINK}/usr/lib/cuda/version.txt" PARENT_SCOPE) + elseif(EXISTS "${CMAKE_SYSROOT}/usr/lib/cuda/version.txt") + set(${result_variable} "${CMAKE_SYSROOT}/usr/lib/cuda/version.txt" PARENT_SCOPE) + endif() + endfunction() + + # For NVCC we can easily deduce the SDK binary directory from the compiler path. + if(CMAKE_CUDA_COMPILER_LOADED AND NOT CUDAToolkit_BIN_DIR AND CMAKE_CUDA_COMPILER_ID STREQUAL "NVIDIA") + get_filename_component(CUDAToolkit_BIN_DIR "${CMAKE_CUDA_COMPILER}" DIRECTORY) + set(CUDAToolkit_BIN_DIR "${CUDAToolkit_BIN_DIR}" CACHE PATH "") + # Try language provided path first. + _CUDAToolkit_find_root_dir(SEARCH_PATHS "${CUDAToolkit_BIN_DIR}" FIND_FLAGS NO_DEFAULT_PATH) + mark_as_advanced(CUDAToolkit_BIN_DIR) + endif() + + # Try user provided path + if(NOT CUDAToolkit_ROOT_DIR AND CUDAToolkit_ROOT) + _CUDAToolkit_find_root_dir(SEARCH_PATHS "${CUDAToolkit_ROOT}" FIND_FLAGS PATH_SUFFIXES bin NO_DEFAULT_PATH) + endif() + if(NOT CUDAToolkit_ROOT_DIR) + _CUDAToolkit_find_root_dir(FIND_FLAGS PATHS ENV CUDA_PATH PATH_SUFFIXES bin) + endif() + + # If the user specified CUDAToolkit_ROOT but the toolkit could not be found, this is an error. + if(NOT CUDAToolkit_ROOT_DIR AND (DEFINED CUDAToolkit_ROOT OR DEFINED ENV{CUDAToolkit_ROOT})) + # Declare error messages now, print later depending on find_package args. + set(fail_base "Could not find nvcc executable in path specified by") + set(cuda_root_fail "${fail_base} CUDAToolkit_ROOT=${CUDAToolkit_ROOT}") + set(env_cuda_root_fail "${fail_base} environment variable CUDAToolkit_ROOT=$ENV{CUDAToolkit_ROOT}") + + if(CUDAToolkit_FIND_REQUIRED) + if(DEFINED CUDAToolkit_ROOT) + message(FATAL_ERROR ${cuda_root_fail}) + elseif(DEFINED ENV{CUDAToolkit_ROOT}) + message(FATAL_ERROR ${env_cuda_root_fail}) + endif() + else() + if(NOT CUDAToolkit_FIND_QUIETLY) + if(DEFINED CUDAToolkit_ROOT) + message(STATUS ${cuda_root_fail}) + elseif(DEFINED ENV{CUDAToolkit_ROOT}) + message(STATUS ${env_cuda_root_fail}) + endif() + endif() + set(CUDAToolkit_FOUND FALSE) + unset(fail_base) + unset(cuda_root_fail) + unset(env_cuda_root_fail) + return() + endif() + endif() + + # CUDAToolkit_ROOT cmake / env variable not specified, try platform defaults. + # + # - Linux: /usr/local/cuda-X.Y + # - macOS: /Developer/NVIDIA/CUDA-X.Y + # - Windows: C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\vX.Y + # + # We will also search the default symlink location /usr/local/cuda first since + # if CUDAToolkit_ROOT is not specified, it is assumed that the symlinked + # directory is the desired location. + if(NOT CUDAToolkit_ROOT_DIR) + if(UNIX) + if(NOT APPLE) + set(platform_base "/usr/local/cuda-") + else() + set(platform_base "/Developer/NVIDIA/CUDA-") + endif() + else() + set(platform_base "C:\\Program Files\\NVIDIA GPU Computing Toolkit\\CUDA\\v") + endif() + + # Build out a descending list of possible cuda installations, e.g. + file(GLOB possible_paths "${platform_base}*") + # Iterate the glob results and create a descending list. + set(versions) + foreach(p ${possible_paths}) + # Extract version number from end of string + string(REGEX MATCH "[0-9][0-9]?\\.[0-9]$" p_version ${p}) + if(IS_DIRECTORY ${p} AND p_version) + list(APPEND versions ${p_version}) + endif() + endforeach() + + # Sort numerically in descending order, so we try the newest versions first. + list(SORT versions COMPARE NATURAL ORDER DESCENDING) + + # With a descending list of versions, populate possible paths to search. + set(search_paths) + foreach(v ${versions}) + list(APPEND search_paths "${platform_base}${v}") + endforeach() + + # Force the global default /usr/local/cuda to the front on Unix. + if(UNIX) + list(INSERT search_paths 0 "/usr/local/cuda") + endif() + + # Now search for the toolkit again using the platform default search paths. + _CUDAToolkit_find_root_dir(SEARCH_PATHS "${search_paths}" FIND_FLAGS PATH_SUFFIXES bin) + + # We are done with these variables now, cleanup for caller. + unset(platform_base) + unset(possible_paths) + unset(versions) + unset(search_paths) + + if(NOT CUDAToolkit_ROOT_DIR) + if(CUDAToolkit_FIND_REQUIRED) + message(FATAL_ERROR "Could not find nvcc, please set CUDAToolkit_ROOT.") + elseif(NOT CUDAToolkit_FIND_QUIETLY) + message(STATUS "Could not find nvcc, please set CUDAToolkit_ROOT.") + endif() + + set(CUDAToolkit_FOUND FALSE) + return() + endif() + endif() + + _CUDAToolkit_find_version_file( _CUDAToolkit_version_file ) + if(_CUDAToolkit_version_file) + # CUDAToolkit_LIBRARY_ROOT contains the device library and version file. + get_filename_component(CUDAToolkit_LIBRARY_ROOT "${_CUDAToolkit_version_file}" DIRECTORY ABSOLUTE) + endif() + unset(_CUDAToolkit_version_file) +endif() + +# Find target directory when crosscompiling. +if(CMAKE_CROSSCOMPILING) + if(CMAKE_SYSTEM_PROCESSOR STREQUAL "armv7-a") + # Support for NVPACK + set(CUDAToolkit_TARGET_NAME "armv7-linux-androideabi") + elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm") + set(CUDAToolkit_TARGET_NAME "armv7-linux-gnueabihf") + elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64") + if(ANDROID_ARCH_NAME STREQUAL "arm64") + set(CUDAToolkit_TARGET_NAME "aarch64-linux-androideabi") + elseif (CMAKE_SYSTEM_NAME STREQUAL "QNX") + set(CUDAToolkit_TARGET_NAME "aarch64-qnx") + else() + set(CUDAToolkit_TARGET_NAME "aarch64-linux") + endif(ANDROID_ARCH_NAME STREQUAL "arm64") + elseif(CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64") + set(CUDAToolkit_TARGET_NAME "x86_64-linux") + endif() + + if(EXISTS "${CUDAToolkit_ROOT_DIR}/targets/${CUDAToolkit_TARGET_NAME}") + set(CUDAToolkit_TARGET_DIR "${CUDAToolkit_ROOT_DIR}/targets/${CUDAToolkit_TARGET_NAME}") + # add known CUDA target root path to the set of directories we search for programs, libraries and headers + list(PREPEND CMAKE_FIND_ROOT_PATH "${CUDAToolkit_TARGET_DIR}") + + # Mark that we need to pop the root search path changes after we have + # found all cuda libraries so that searches for our cross-compilation + # libraries work when another cuda sdk is in CMAKE_PREFIX_PATH or + # PATh + set(_CUDAToolkit_Pop_ROOT_PATH True) + endif() +endif() + +# If not already set we can simply use the toolkit root or it's a scattered installation. +if(NOT CUDAToolkit_TARGET_DIR) + # Not cross compiling + set(CUDAToolkit_TARGET_DIR "${CUDAToolkit_ROOT_DIR}") + # Now that we have the real ROOT_DIR, find components inside it. + list(APPEND CMAKE_PREFIX_PATH ${CUDAToolkit_ROOT_DIR}) + + # Mark that we need to pop the prefix path changes after we have + # found the cudart library. + set(_CUDAToolkit_Pop_Prefix True) +endif() + +# CUDAToolkit_TARGET_DIR always points to the directory containing the include directory. +# On a scattered installation /usr, on a non-scattered something like /usr/local/cuda or /usr/local/cuda-10.2/targets/aarch64-linux. +if(EXISTS "${CUDAToolkit_TARGET_DIR}/include/cuda_runtime.h") + set(CUDAToolkit_INCLUDE_DIR "${CUDAToolkit_TARGET_DIR}/include") +elseif(NOT CUDAToolkit_FIND_QUIETLY) + message(STATUS "Unable to find cuda_runtime.h in \"${CUDAToolkit_TARGET_DIR}/include\" for CUDAToolkit_INCLUDE_DIR.") +endif() + +# The NVHPC layout moves math library headers and libraries to a sibling directory. +# Create a separate variable so this directory can be selectively added to math targets. +if(NOT EXISTS "${CUDAToolkit_INCLUDE_DIR}/cublas_v2.h") + set(CUDAToolkit_MATH_INCLUDE_DIR "${CUDAToolkit_TARGET_DIR}/../../math_libs/include") + cmake_path(NORMAL_PATH CUDAToolkit_MATH_INCLUDE_DIR) + if(NOT EXISTS "${CUDAToolkit_MATH_INCLUDE_DIR}/cublas_v2.h") + if(NOT CUDAToolkit_FIND_QUIETLY) + message(STATUS "Unable to find cublas_v2.h in either \"${CUDAToolkit_INCLUDE_DIR}\" or \"${CUDAToolkit_MATH_INCLUDE_DIR}\"") + endif() + unset(CUDAToolkit_MATH_INCLUDE_DIR) + endif() +endif() + +if(CUDAToolkit_NVCC_EXECUTABLE AND + CMAKE_CUDA_COMPILER_VERSION AND + CUDAToolkit_NVCC_EXECUTABLE STREQUAL CMAKE_CUDA_COMPILER) + # Need to set these based off the already computed CMAKE_CUDA_COMPILER_VERSION value + # This if statement will always match, but is used to provide variables for MATCH 1,2,3... + if(CMAKE_CUDA_COMPILER_VERSION MATCHES [=[([0-9]+)\.([0-9]+)\.([0-9]+)]=]) + set(CUDAToolkit_VERSION_MAJOR "${CMAKE_MATCH_1}") + set(CUDAToolkit_VERSION_MINOR "${CMAKE_MATCH_2}") + set(CUDAToolkit_VERSION_PATCH "${CMAKE_MATCH_3}") + set(CUDAToolkit_VERSION "${CMAKE_CUDA_COMPILER_VERSION}") + endif() +elseif(CUDAToolkit_NVCC_EXECUTABLE) + # Compute the version by invoking nvcc + execute_process(COMMAND ${CUDAToolkit_NVCC_EXECUTABLE} "--version" OUTPUT_VARIABLE NVCC_OUT) + if(NVCC_OUT MATCHES [=[ V([0-9]+)\.([0-9]+)\.([0-9]+)]=]) + set(CUDAToolkit_VERSION_MAJOR "${CMAKE_MATCH_1}") + set(CUDAToolkit_VERSION_MINOR "${CMAKE_MATCH_2}") + set(CUDAToolkit_VERSION_PATCH "${CMAKE_MATCH_3}") + set(CUDAToolkit_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}") + endif() + unset(NVCC_OUT) +else() + _CUDAToolkit_find_version_file(version_file) + if(version_file) + file(READ "${version_file}" VERSION_INFO) + if(VERSION_INFO MATCHES [=[CUDA Version ([0-9]+)\.([0-9]+)\.([0-9]+)]=]) + set(CUDAToolkit_VERSION_MAJOR "${CMAKE_MATCH_1}") + set(CUDAToolkit_VERSION_MINOR "${CMAKE_MATCH_2}") + set(CUDAToolkit_VERSION_PATCH "${CMAKE_MATCH_3}") + set(CUDAToolkit_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}") + endif() + endif() +endif() + +# Find the CUDA Runtime Library libcudart +find_library(CUDA_CUDART + NAMES cudart + PATH_SUFFIXES lib64 lib/x64 +) +find_library(CUDA_CUDART + NAMES cudart + PATH_SUFFIXES lib64/stubs lib/x64/stubs +) + +if(NOT CUDA_CUDART AND NOT CUDAToolkit_FIND_QUIETLY) + message(STATUS "Unable to find cudart library.") +endif() + +if(_CUDAToolkit_Pop_Prefix) + list(REMOVE_AT CMAKE_PREFIX_PATH -1) + unset(_CUDAToolkit_Pop_Prefix) +endif() + +#----------------------------------------------------------------------------- +# Perform version comparison and validate all required variables are set. +include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) +find_package_handle_standard_args(CUDAToolkit + REQUIRED_VARS + CUDAToolkit_INCLUDE_DIR + CUDA_CUDART + CUDAToolkit_BIN_DIR + VERSION_VAR + CUDAToolkit_VERSION +) + +unset(CUDAToolkit_ROOT_DIR) +mark_as_advanced(CUDA_CUDART + CUDAToolkit_INCLUDE_DIR + CUDAToolkit_NVCC_EXECUTABLE + CUDAToolkit_SENTINEL_FILE + ) + +#----------------------------------------------------------------------------- +# Construct result variables +if(CUDAToolkit_FOUND) + set(CUDAToolkit_INCLUDE_DIRS ${CUDAToolkit_INCLUDE_DIR}) + get_filename_component(CUDAToolkit_LIBRARY_DIR ${CUDA_CUDART} DIRECTORY ABSOLUTE) +endif() + +#----------------------------------------------------------------------------- +# Construct import targets +if(CUDAToolkit_FOUND) + + function(_CUDAToolkit_find_and_add_import_lib lib_name) + cmake_parse_arguments(arg "" "" "ALT;DEPS;EXTRA_PATH_SUFFIXES" ${ARGN}) + + set(search_names ${lib_name} ${arg_ALT}) + + find_library(CUDA_${lib_name}_LIBRARY + NAMES ${search_names} + HINTS ${CUDAToolkit_LIBRARY_DIR} + ENV CUDA_PATH + PATH_SUFFIXES nvidia/current lib64 lib/x64 lib + ${arg_EXTRA_PATH_SUFFIXES} + ) + # Don't try any stub directories until we have exhausted all other + # search locations. + find_library(CUDA_${lib_name}_LIBRARY + NAMES ${search_names} + HINTS ${CUDAToolkit_LIBRARY_DIR} + ENV CUDA_PATH + PATH_SUFFIXES lib64/stubs lib/x64/stubs lib/stubs stubs + # Support NVHPC splayed math library layout + ../../math_libs/${CUDAToolkit_VERSION_MAJOR}.${CUDAToolkit_VERSION_MINOR}/lib64 + ../../math_libs/lib64 + ) + + mark_as_advanced(CUDA_${lib_name}_LIBRARY) + + if (NOT TARGET CUDA::${lib_name} AND CUDA_${lib_name}_LIBRARY) + add_library(CUDA::${lib_name} UNKNOWN IMPORTED) + target_include_directories(CUDA::${lib_name} SYSTEM INTERFACE "${CUDAToolkit_INCLUDE_DIRS}") + if(DEFINED CUDAToolkit_MATH_INCLUDE_DIR) + string(FIND ${CUDA_${lib_name}_LIBRARY} "math_libs" math_libs) + if(NOT ${math_libs} EQUAL -1) + target_include_directories(CUDA::${lib_name} SYSTEM INTERFACE "${CUDAToolkit_MATH_INCLUDE_DIR}") + endif() + endif() + set_property(TARGET CUDA::${lib_name} PROPERTY IMPORTED_LOCATION "${CUDA_${lib_name}_LIBRARY}") + foreach(dep ${arg_DEPS}) + if(TARGET CUDA::${dep}) + target_link_libraries(CUDA::${lib_name} INTERFACE CUDA::${dep}) + endif() + endforeach() + endif() + endfunction() + + if(NOT TARGET CUDA::toolkit) + add_library(CUDA::toolkit IMPORTED INTERFACE) + target_include_directories(CUDA::toolkit SYSTEM INTERFACE "${CUDAToolkit_INCLUDE_DIRS}") + target_link_directories(CUDA::toolkit INTERFACE "${CUDAToolkit_LIBRARY_DIR}") + endif() + + _CUDAToolkit_find_and_add_import_lib(cuda_driver ALT cuda) + + _CUDAToolkit_find_and_add_import_lib(cudart) + _CUDAToolkit_find_and_add_import_lib(cudart_static) + + # setup dependencies that are required for cudart_static when building + # on linux. These are generally only required when using the CUDA toolkit + # when CUDA language is disabled + if(NOT TARGET CUDA::cudart_static_deps + AND TARGET CUDA::cudart_static) + + add_library(CUDA::cudart_static_deps IMPORTED INTERFACE) + target_link_libraries(CUDA::cudart_static INTERFACE CUDA::cudart_static_deps) + + if(UNIX AND (CMAKE_C_COMPILER OR CMAKE_CXX_COMPILER)) + find_package(Threads REQUIRED) + target_link_libraries(CUDA::cudart_static_deps INTERFACE Threads::Threads ${CMAKE_DL_LIBS}) + endif() + + if(UNIX AND NOT APPLE AND NOT (CMAKE_SYSTEM_NAME STREQUAL "QNX")) + # On Linux, you must link against librt when using the static cuda runtime. + find_library(CUDAToolkit_rt_LIBRARY rt) + mark_as_advanced(CUDAToolkit_rt_LIBRARY) + if(NOT CUDAToolkit_rt_LIBRARY) + message(WARNING "Could not find librt library, needed by CUDA::cudart_static") + else() + target_link_libraries(CUDA::cudart_static_deps INTERFACE ${CUDAToolkit_rt_LIBRARY}) + endif() + endif() + endif() + + _CUDAToolkit_find_and_add_import_lib(culibos) # it's a static library + foreach (cuda_lib cublasLt cublas cufft curand cusparse nppc nvjpeg) + _CUDAToolkit_find_and_add_import_lib(${cuda_lib}) + _CUDAToolkit_find_and_add_import_lib(${cuda_lib}_static DEPS culibos) + endforeach() + + # cuFFTW depends on cuFFT + _CUDAToolkit_find_and_add_import_lib(cufftw DEPS cufft) + _CUDAToolkit_find_and_add_import_lib(cufftw DEPS cufft_static) + + # cuSOLVER depends on cuBLAS, and cuSPARSE + _CUDAToolkit_find_and_add_import_lib(cusolver DEPS cublas cusparse) + _CUDAToolkit_find_and_add_import_lib(cusolver_static DEPS cublas_static cusparse_static culibos) + + # nvGRAPH depends on cuRAND, and cuSOLVER. + _CUDAToolkit_find_and_add_import_lib(nvgraph DEPS curand cusolver) + _CUDAToolkit_find_and_add_import_lib(nvgraph_static DEPS curand_static cusolver_static) + + # Process the majority of the NPP libraries. + foreach (cuda_lib nppial nppicc nppidei nppif nppig nppim nppist nppitc npps nppicom nppisu) + _CUDAToolkit_find_and_add_import_lib(${cuda_lib} DEPS nppc) + _CUDAToolkit_find_and_add_import_lib(${cuda_lib}_static DEPS nppc_static) + endforeach() + + _CUDAToolkit_find_and_add_import_lib(cupti + EXTRA_PATH_SUFFIXES ../extras/CUPTI/lib64/ + ../extras/CUPTI/lib/) + _CUDAToolkit_find_and_add_import_lib(cupti_static + EXTRA_PATH_SUFFIXES ../extras/CUPTI/lib64/ + ../extras/CUPTI/lib/) + + _CUDAToolkit_find_and_add_import_lib(nvrtc DEPS cuda_driver) + + _CUDAToolkit_find_and_add_import_lib(nvml ALT nvidia-ml nvml) + + if(WIN32) + # nvtools can be installed outside the CUDA toolkit directory + # so prefer the NVTOOLSEXT_PATH windows only environment variable + # In addition on windows the most common name is nvToolsExt64_1 + find_library(CUDA_nvToolsExt_LIBRARY + NAMES nvToolsExt64_1 nvToolsExt64 nvToolsExt + PATHS ENV NVTOOLSEXT_PATH + ENV CUDA_PATH + PATH_SUFFIXES lib/x64 lib + ) + endif() + _CUDAToolkit_find_and_add_import_lib(nvToolsExt ALT nvToolsExt64) + + _CUDAToolkit_find_and_add_import_lib(OpenCL) +endif() + +if(_CUDAToolkit_Pop_ROOT_PATH) + list(REMOVE_AT CMAKE_FIND_ROOT_PATH 0) + unset(_CUDAToolkit_Pop_ROOT_PATH) +endif() |