mirror of
https://github.com/ml-explore/mlx.git
synced 2025-11-04 18:48:15 +08:00
55 lines
1.7 KiB
CMake
55 lines
1.7 KiB
CMake
# FindNCCL.cmake This module finds the NVIDIA NCCL library and its include
|
|
# directories.
|
|
|
|
set(NCCL_ROOT_DIR
|
|
$ENV{NCCL_ROOT_DIR}
|
|
CACHE PATH "Folder contains NVIDIA NCCL")
|
|
|
|
find_path(
|
|
NCCL_INCLUDE_DIRS
|
|
NAMES nccl.h
|
|
HINTS ${NCCL_INCLUDE_DIR} ${NCCL_ROOT_DIR} ${NCCL_ROOT_DIR}/include
|
|
${CUDA_TOOLKIT_ROOT_DIR}/include)
|
|
|
|
if($ENV{USE_STATIC_NCCL})
|
|
message(
|
|
STATUS "USE_STATIC_NCCL detected. Linking against static NCCL library")
|
|
set(NCCL_LIBNAME "libnccl_static.a")
|
|
else()
|
|
set(NCCL_LIBNAME "nccl")
|
|
endif()
|
|
|
|
find_library(
|
|
NCCL_LIBRARIES
|
|
NAMES ${NCCL_LIBNAME}
|
|
HINTS ${NCCL_LIB_DIR}
|
|
${NCCL_ROOT_DIR}
|
|
${NCCL_ROOT_DIR}/lib
|
|
${NCCL_ROOT_DIR}/lib/x86_64-linux-gnu
|
|
${NCCL_ROOT_DIR}/lib64
|
|
${CUDA_TOOLKIT_ROOT_DIR}/lib
|
|
${CUDA_TOOLKIT_ROOT_DIR}/lib64)
|
|
|
|
include(FindPackageHandleStandardArgs)
|
|
find_package_handle_standard_args(NCCL DEFAULT_MSG NCCL_INCLUDE_DIRS
|
|
NCCL_LIBRARIES)
|
|
|
|
if(NCCL_FOUND)
|
|
set(NCCL_HEADER_FILE "${NCCL_INCLUDE_DIRS}/nccl.h")
|
|
message(
|
|
STATUS "Determining NCCL version from the header file: ${NCCL_HEADER_FILE}")
|
|
file(
|
|
STRINGS ${NCCL_HEADER_FILE} NCCL_MAJOR_VERSION_DEFINED
|
|
REGEX "^[ \t]*#define[ \t]+NCCL_MAJOR[ \t]+[0-9]+.*$"
|
|
LIMIT_COUNT 1)
|
|
if(NCCL_MAJOR_VERSION_DEFINED)
|
|
string(REGEX REPLACE "^[ \t]*#define[ \t]+NCCL_MAJOR[ \t]+" ""
|
|
NCCL_MAJOR_VERSION ${NCCL_MAJOR_VERSION_DEFINED})
|
|
message(STATUS "NCCL_MAJOR_VERSION: ${NCCL_MAJOR_VERSION}")
|
|
endif()
|
|
message(
|
|
STATUS
|
|
"Found NCCL (include: ${NCCL_INCLUDE_DIRS}, library: ${NCCL_LIBRARIES})")
|
|
mark_as_advanced(NCCL_ROOT_DIR NCCL_INCLUDE_DIRS NCCL_LIBRARIES)
|
|
endif()
|