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# This package doesn't install CUDA. It instead verifies that CUDA is installed.
# Other packages can depend on this package to declare a dependency on CUDA.
# If this package is installed, we assume that CUDA is properly installed.
#note: this port must be kept in sync with CUDNN port: every time one is upgraded, the other must be too
set(CUDA_REQUIRED_VERSION "10.1.0")
set(CUDA_PATHS
ENV CUDA_PATH
ENV CUDA_BIN_PATH
ENV CUDA_PATH_V11_0
ENV CUDA_PATH_V10_2
ENV CUDA_PATH_V10_1)
if (VCPKG_TARGET_IS_WINDOWS)
find_program(NVCC
NAMES nvcc.exe
PATHS
${CUDA_PATHS}
PATH_SUFFIXES bin bin64
DOC "Toolkit location."
NO_DEFAULT_PATH
)
else()
if (VCPKG_TARGET_IS_LINUX)
set(platform_base "/usr/local/cuda-")
else()
set(platform_base "/Developer/NVIDIA/CUDA-")
endif()
file(GLOB possible_paths "${platform_base}*")
set(FOUND_PATH )
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)
if (p_version VERSION_GREATER_EQUAL CUDA_REQUIRED_VERSION)
set(FOUND_PATH ${p})
break()
endif()
endif()
endforeach()
find_program(NVCC
NAMES nvcc
PATHS
${CUDA_PATHS}
PATHS ${FOUND_PATH}
PATH_SUFFIXES bin bin64
DOC "Toolkit location."
NO_DEFAULT_PATH
)
endif()
set(error_code 1)
if (NVCC)
execute_process(
COMMAND ${NVCC} --version
OUTPUT_VARIABLE NVCC_OUTPUT
RESULT_VARIABLE error_code)
endif()
if (error_code)
message(STATUS "Executing ${NVCC} --version resulted in error: ${error_code}")
message(FATAL_ERROR "Could not find CUDA. Before continuing, please download and install CUDA (v${CUDA_REQUIRED_VERSION} or higher) from:"
"\n https://developer.nvidia.com/cuda-downloads\n")
endif()
# Sample output:
# NVIDIA (R) Cuda compiler driver
# Copyright (c) 2005-2016 NVIDIA Corporation
# Built on Sat_Sep__3_19:05:48_CDT_2016
# Cuda compilation tools, release 8.0, V8.0.44
string(REGEX MATCH "V([0-9]+)\\.([0-9]+)\\.([0-9]+)" CUDA_VERSION ${NVCC_OUTPUT})
message(STATUS "Found CUDA ${CUDA_VERSION}")
set(CUDA_VERSION_MAJOR ${CMAKE_MATCH_1})
set(CUDA_VERSION_MINOR ${CMAKE_MATCH_2})
set(CUDA_VERSION_PATCH ${CMAKE_MATCH_3})
if (CUDA_VERSION_MAJOR LESS 10 AND CUDA_VERSION_MINOR LESS 1)
message(FATAL_ERROR "CUDA ${CUDA_VERSION} found, but v${CUDA_REQUIRED_VERSION} is required. Please download and install a more recent version of CUDA from:"
"\n https://developer.nvidia.com/cuda-downloads\n")
endif()
SET(VCPKG_POLICY_EMPTY_PACKAGE enabled)
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