TensorRT-LLMs/cpp/cmake/modules/FindNCCL.cmake
Yuan Tong 0b0e6d8a0a
refactor: Clean up CMakeLists.txt (#3479)
Signed-off-by: Yuan Tong <13075180+tongyuantongyu@users.noreply.github.com>
2025-04-18 14:39:29 +08:00

75 lines
2.3 KiB
CMake

#
# SPDX-FileCopyrightText: Copyright (c) 1993-2022 NVIDIA CORPORATION &
# AFFILIATES. All rights reserved. SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
#
find_library(NCCL_LIBRARY NAMES nccl)
if(NCCL_LIBRARY)
set(NCCL_LIBRARIES ${NCCL_LIBRARIES} ${NCCL_LIBRARY})
endif()
find_library(NCCL_STATIC_LIBRARY NAMES nccl_static)
if(NCCL_STATIC_LIBRARY)
set(NCCL_LIBRARIES ${NCCL_LIBRARIES} ${NCCL_STATIC_LIBRARY})
endif()
find_path(NCCL_INCLUDE_DIR NAMES nccl.h)
function(_nccl_get_version)
unset(NCCL_VERSION_STRING PARENT_SCOPE)
set(_hdr_file "${NCCL_INCLUDE_DIR}/nccl.h")
if(NOT EXISTS "${_hdr_file}")
return()
endif()
file(STRINGS "${_hdr_file}" VERSION_STRINGS REGEX "#define NCCL_.*")
foreach(TYPE MAJOR MINOR PATCH)
string(REGEX MATCH "NCCL_${TYPE} [0-9]+" NCCL_TYPE_STRING
${VERSION_STRINGS})
string(REGEX MATCH "[0-9]+" NCCL_VERSION_${TYPE} ${NCCL_TYPE_STRING})
endforeach(TYPE)
set(NCCL_VERSION_STRING
"${NCCL_VERSION_MAJOR}.${NCCL_VERSION_MINOR}.${NCCL_VERSION_PATCH}"
PARENT_SCOPE)
endfunction()
_nccl_get_version()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(
NCCL
FOUND_VAR NCCL_FOUND
REQUIRED_VARS NCCL_LIBRARIES NCCL_INCLUDE_DIR
VERSION_VAR NCCL_VERSION_STRING)
if(NCCL_LIBRARY)
add_library(NCCL::nccl SHARED IMPORTED)
target_include_directories(NCCL::nccl SYSTEM INTERFACE "${NCCL_INCLUDE_DIR}")
set_property(TARGET NCCL::nccl PROPERTY IMPORTED_LOCATION "${NCCL_LIBRARY}")
endif()
if(NCCL_STATIC_LIBRARY)
add_library(NCCL::nccl_static STATIC IMPORTED)
target_include_directories(NCCL::nccl_static SYSTEM
INTERFACE "${NCCL_INCLUDE_DIR}")
set_property(TARGET NCCL::nccl_static PROPERTY IMPORTED_LOCATION
"${NCCL_STATIC_LIBRARY}")
endif()