vcpkg/ports/nccl/portfile.cmake

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CMake
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vcpkg_fail_port_install(ON_TARGET "Windows" "OSX" ON_ARCH "x86" "arm")
# note: this port must be kept in sync with CUDA port: every time one is upgraded, the other must be too
set(NCCL_VERSION "2.4.6.1")
set(NCCL_FULL_VERSION "${NCCL_VERSION}-cuda10.1_0")
string(REPLACE "." ";" VERSION_LIST ${NCCL_VERSION})
list(GET VERSION_LIST 0 NCCL_VERSION_MAJOR)
list(GET VERSION_LIST 1 NCCL_VERSION_MINOR)
list(GET VERSION_LIST 2 NCCL_VERSION_PATCH)
set(NCCL_DOWNLOAD_LINK "https://anaconda.org/nvidia/nccl/${NCCL_VERSION}/download/linux-64/nccl-${NCCL_FULL_VERSION}.tar.bz2")
# Try to find NCCL if it exists; only download if it doesn't exist
set(NCCL_PREV_MODULE_PATH ${CMAKE_MODULE_PATH})
list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR})
find_package(NCCL ${NCCL_VERSION})
set(CMAKE_MODULE_PATH ${NCCL_PREV_MODULE_PATH})
# Download or return
if(NCCL_FOUND)
message(STATUS "Using NCCL located on system.")
set(VCPKG_POLICY_EMPTY_PACKAGE enabled)
else()
message(STATUS "NCCL not found on system. Downloading...")
vcpkg_check_linkage(ONLY_DYNAMIC_LIBRARY ONLY_DYNAMIC_CRT)
set(SHA512_NCCL "0fe69ad559f70aab97c78906296e2b909b4a9c042a228a2770252b3d03016c7c39acce3c0e0bd0ba651abd63471743dcffdfec307c486989c6e5745634aabde1")
set(NCCL_OS "linux")
vcpkg_download_distfile(ARCHIVE
URLS ${NCCL_DOWNLOAD_LINK}
FILENAME "nccl-${NCCL_FULL_VERSION}-${NCCL_OS}.tar.bz2"
SHA512 ${SHA512_NCCL}
)
vcpkg_extract_source_archive_ex(
OUT_SOURCE_PATH SOURCE_PATH
ARCHIVE ${ARCHIVE}
NO_REMOVE_ONE_LEVEL
)
file(INSTALL "${SOURCE_PATH}/include/nccl.h" DESTINATION ${CURRENT_PACKAGES_DIR}/include)
file(INSTALL "${SOURCE_PATH}/include/nccl_net.h" DESTINATION ${CURRENT_PACKAGES_DIR}/include)
file(INSTALL "${SOURCE_PATH}/lib/libnccl.so" DESTINATION ${CURRENT_PACKAGES_DIR}/lib)
file(INSTALL "${SOURCE_PATH}/lib/libnccl.so.${NCCL_VERSION_MAJOR}" DESTINATION ${CURRENT_PACKAGES_DIR}/lib)
file(INSTALL "${SOURCE_PATH}/lib/libnccl.so.${NCCL_VERSION_MAJOR}.${NCCL_VERSION_MINOR}.${NCCL_VERSION_PATCH}" DESTINATION ${CURRENT_PACKAGES_DIR}/lib)
file(INSTALL "${SOURCE_PATH}/info/licenses/LICENSE.txt" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)
file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/FindNCCL.cmake" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT})
file(INSTALL "${CMAKE_CURRENT_LIST_DIR}/vcpkg-cmake-wrapper.cmake" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT})
endif()
file(INSTALL "${CURRENT_PORT_DIR}/usage" DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT})