mirror of
https://github.com/ml-explore/mlx.git
synced 2025-10-31 16:21:27 +08:00
353 lines
12 KiB
CMake
353 lines
12 KiB
CMake
cmake_minimum_required(VERSION 3.25)
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if(NOT MLX_VERSION)
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file(STRINGS "mlx/version.h" _mlx_h_version REGEX "^#define MLX_VERSION_.*$")
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string(REGEX MATCH "#define MLX_VERSION_MAJOR ([0-9]+)" _ "${_mlx_h_version}")
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set(_major ${CMAKE_MATCH_1})
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string(REGEX MATCH "#define MLX_VERSION_MINOR ([0-9]+)" _ "${_mlx_h_version}")
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set(_minor ${CMAKE_MATCH_1})
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string(REGEX MATCH "#define MLX_VERSION_PATCH ([0-9]+)" _ "${_mlx_h_version}")
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set(_patch ${CMAKE_MATCH_1})
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set(MLX_PROJECT_VERSION "${_major}.${_minor}.${_patch}")
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set(MLX_VERSION ${MLX_PROJECT_VERSION})
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else()
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string(REGEX REPLACE "^([0-9]+\.[0-9]+\.[0-9]+).*" "\\1" MLX_PROJECT_VERSION
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${MLX_VERSION})
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endif()
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project(
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mlx
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LANGUAGES C CXX
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VERSION ${MLX_PROJECT_VERSION})
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# ----------------------------- Setup -----------------------------
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set(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
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set(CMAKE_CXX_STANDARD 17)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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set(CMAKE_POSITION_INDEPENDENT_CODE ON)
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set(CMAKE_INSTALL_MESSAGE NEVER)
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# ----------------------------- Configuration -----------------------------
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option(MLX_BUILD_TESTS "Build tests for mlx" ON)
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option(MLX_BUILD_EXAMPLES "Build examples for mlx" ON)
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option(MLX_BUILD_BENCHMARKS "Build benchmarks for mlx" OFF)
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option(MLX_BUILD_PYTHON_BINDINGS "Build python bindings for mlx" OFF)
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option(MLX_BUILD_METAL "Build metal backend" ON)
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option(MLX_BUILD_CPU "Build cpu backend" ON)
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option(MLX_BUILD_CUDA "Build cuda backend" OFF)
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option(MLX_METAL_DEBUG "Enhance metal debug workflow" OFF)
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option(MLX_ENABLE_X64_MAC "Enable building for x64 macOS" OFF)
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option(MLX_BUILD_GGUF "Include support for GGUF format" ON)
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option(MLX_BUILD_SAFETENSORS "Include support for safetensors format" ON)
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option(MLX_BUILD_BLAS_FROM_SOURCE "Build OpenBLAS from source code" OFF)
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option(MLX_METAL_JIT "Use JIT compilation for Metal kernels" OFF)
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option(MLX_USE_CCACHE "Use CCache for compilation cache when available" ON)
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option(BUILD_SHARED_LIBS "Build mlx as a shared library" OFF)
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option(USE_SYSTEM_FMT "Use system's provided fmt library" OFF)
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# --------------------- Processor tests -------------------------
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message(
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STATUS
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"Building MLX for ${CMAKE_SYSTEM_PROCESSOR} processor on ${CMAKE_SYSTEM_NAME}"
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)
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if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
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if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "x86_64")
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if(NOT MLX_ENABLE_X64_MAC)
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message(
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FATAL_ERROR
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"Building for x86_64 on macOS is not supported."
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" If you are on an Apple silicon system, check the build"
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" documentation for possible fixes: "
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"https://ml-explore.github.io/mlx/build/html/install.html#build-from-source"
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)
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else()
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set(MLX_BUILD_METAL OFF)
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message(WARNING "Building for x86_64 arch is not officially supported.")
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endif()
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endif()
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else()
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set(MLX_BUILD_METAL OFF)
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endif()
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if(MLX_USE_CCACHE)
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find_program(CCACHE_PROGRAM ccache)
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if(CCACHE_PROGRAM)
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set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
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set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
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set(CMAKE_CUDA_COMPILER_LAUNCHER "${CCACHE_PROGRAM}")
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endif()
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endif()
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# ----------------------------- Lib -----------------------------
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include(FetchContent)
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# Avoid warning about DOWNLOAD_EXTRACT_TIMESTAMP in CMake 3.24:
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cmake_policy(SET CMP0135 NEW)
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add_library(mlx)
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if(MLX_BUILD_METAL)
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set(METAL_LIB "-framework Metal")
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set(FOUNDATION_LIB "-framework Foundation")
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set(QUARTZ_LIB "-framework QuartzCore")
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endif()
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if(MLX_BUILD_CUDA)
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enable_language(CUDA)
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endif()
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if(MLX_BUILD_METAL AND NOT METAL_LIB)
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message(STATUS "Metal not found. Unable to build GPU")
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set(MLX_BUILD_METAL OFF)
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set(MLX_METAL_DEBUG OFF)
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elseif(MLX_BUILD_METAL)
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message(STATUS "Building METAL sources")
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if(MLX_METAL_DEBUG)
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add_compile_definitions(MLX_METAL_DEBUG)
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endif()
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# Throw an error if xcrun not found
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execute_process(
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COMMAND zsh "-c" "/usr/bin/xcrun -sdk macosx --show-sdk-version"
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OUTPUT_VARIABLE MACOS_SDK_VERSION COMMAND_ERROR_IS_FATAL ANY)
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if(${MACOS_SDK_VERSION} LESS 14.0)
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message(
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FATAL_ERROR
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"MLX requires macOS SDK >= 14.0 to be built with MLX_BUILD_METAL=ON")
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endif()
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message(STATUS "Building with macOS SDK version ${MACOS_SDK_VERSION}")
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set(METAL_CPP_URL
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https://developer.apple.com/metal/cpp/files/metal-cpp_macOS15_iOS18.zip)
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if(NOT CMAKE_OSX_DEPLOYMENT_TARGET STREQUAL "")
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set(XCRUN_FLAGS "-mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET}")
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endif()
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execute_process(
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COMMAND
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zsh "-c"
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"echo \"__METAL_VERSION__\" | xcrun -sdk macosx metal ${XCRUN_FLAGS} -E -x metal -P - | tail -1 | tr -d '\n'"
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OUTPUT_VARIABLE MLX_METAL_VERSION COMMAND_ERROR_IS_FATAL ANY)
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FetchContent_Declare(metal_cpp URL ${METAL_CPP_URL})
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FetchContent_MakeAvailable(metal_cpp)
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target_include_directories(
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mlx PUBLIC $<BUILD_INTERFACE:${metal_cpp_SOURCE_DIR}>
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$<INSTALL_INTERFACE:include/metal_cpp>)
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target_link_libraries(mlx PUBLIC ${METAL_LIB} ${FOUNDATION_LIB} ${QUARTZ_LIB})
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endif()
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if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
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# With newer clang/gcc versions following libs are implicitly linked, but when
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# building on old distributions they need to be explicitly listed.
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target_link_libraries(mlx PRIVATE dl pthread)
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endif()
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if(WIN32)
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if(MSVC)
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# GGUF does not build with MSVC.
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set(MLX_BUILD_GGUF OFF)
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# There is no prebuilt OpenBLAS distribution for MSVC.
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set(MLX_BUILD_BLAS_FROM_SOURCE ON)
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endif()
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# Windows implementation of dlfcn.h APIs.
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FetchContent_Declare(
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dlfcn-win32
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GIT_REPOSITORY https://github.com/dlfcn-win32/dlfcn-win32.git
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GIT_TAG v1.4.1
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EXCLUDE_FROM_ALL)
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block()
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set(BUILD_SHARED_LIBS OFF)
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FetchContent_MakeAvailable(dlfcn-win32)
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endblock()
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target_include_directories(mlx PRIVATE "${dlfcn-win32_SOURCE_DIR}/src")
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target_link_libraries(mlx PRIVATE dl)
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endif()
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if(MLX_BUILD_CPU)
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find_library(ACCELERATE_LIBRARY Accelerate)
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if(ACCELERATE_LIBRARY)
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message(STATUS "Accelerate found ${ACCELERATE_LIBRARY}")
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set(MLX_BUILD_ACCELERATE ON)
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else()
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message(STATUS "Accelerate or arm neon not found, using default backend.")
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set(MLX_BUILD_ACCELERATE OFF)
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endif()
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if(MLX_BUILD_ACCELERATE)
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target_link_libraries(mlx PUBLIC ${ACCELERATE_LIBRARY})
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add_compile_definitions(MLX_USE_ACCELERATE)
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add_compile_definitions(ACCELERATE_NEW_LAPACK)
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elseif(MLX_BUILD_BLAS_FROM_SOURCE)
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# Download and build OpenBLAS from source code.
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FetchContent_Declare(
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openblas
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GIT_REPOSITORY https://github.com/OpenMathLib/OpenBLAS.git
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GIT_TAG v0.3.28
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EXCLUDE_FROM_ALL)
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set(BUILD_STATIC_LIBS ON) # link statically
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set(NOFORTRAN ON) # msvc has no fortran compiler
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FetchContent_MakeAvailable(openblas)
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target_link_libraries(mlx PRIVATE openblas)
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target_include_directories(
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mlx PRIVATE "${openblas_SOURCE_DIR}/lapack-netlib/LAPACKE/include"
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"${CMAKE_BINARY_DIR}/generated" "${CMAKE_BINARY_DIR}")
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else()
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if(${CMAKE_HOST_APPLE})
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# The blas shipped in macOS SDK is not supported, search homebrew for
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# openblas instead.
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set(BLA_VENDOR OpenBLAS)
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set(LAPACK_ROOT
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"${LAPACK_ROOT};$ENV{LAPACK_ROOT};/usr/local/opt/openblas")
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endif()
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# Search and link with lapack.
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find_package(LAPACK REQUIRED)
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if(NOT LAPACK_FOUND)
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message(FATAL_ERROR "Must have LAPACK installed")
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endif()
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find_path(LAPACK_INCLUDE_DIRS lapacke.h /usr/include /usr/local/include
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/usr/local/opt/openblas/include)
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message(STATUS "Lapack lib " ${LAPACK_LIBRARIES})
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message(STATUS "Lapack include " ${LAPACK_INCLUDE_DIRS})
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target_include_directories(mlx PRIVATE ${LAPACK_INCLUDE_DIRS})
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target_link_libraries(mlx PRIVATE ${LAPACK_LIBRARIES})
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# List blas after lapack otherwise we may accidentally incldue an old
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# version of lapack.h from the include dirs of blas.
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find_package(BLAS REQUIRED)
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if(NOT BLAS_FOUND)
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message(FATAL_ERROR "Must have BLAS installed")
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endif()
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# TODO find a cleaner way to do this
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find_path(BLAS_INCLUDE_DIRS cblas.h /usr/include /usr/local/include
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$ENV{BLAS_HOME}/include)
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message(STATUS "Blas lib " ${BLAS_LIBRARIES})
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message(STATUS "Blas include " ${BLAS_INCLUDE_DIRS})
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target_include_directories(mlx PRIVATE ${BLAS_INCLUDE_DIRS})
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target_link_libraries(mlx PRIVATE ${BLAS_LIBRARIES})
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endif()
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else()
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set(MLX_BUILD_ACCELERATE OFF)
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endif()
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message(STATUS "Downloading json")
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FetchContent_Declare(
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json
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URL https://github.com/nlohmann/json/releases/download/v3.11.3/json.tar.xz)
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FetchContent_MakeAvailable(json)
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target_include_directories(
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mlx PRIVATE $<BUILD_INTERFACE:${json_SOURCE_DIR}/single_include/nlohmann>)
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add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/mlx)
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target_include_directories(
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mlx PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}>
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$<INSTALL_INTERFACE:include>)
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# Do not add mlx_EXPORTS define for shared library.
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set_target_properties(mlx PROPERTIES DEFINE_SYMBOL "")
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if(USE_SYSTEM_FMT)
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find_package(fmt REQUIRED)
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else()
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FetchContent_Declare(
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fmt
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GIT_REPOSITORY https://github.com/fmtlib/fmt.git
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GIT_TAG 10.2.1
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EXCLUDE_FROM_ALL)
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FetchContent_MakeAvailable(fmt)
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endif()
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target_link_libraries(mlx PRIVATE $<BUILD_INTERFACE:fmt::fmt-header-only>)
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if(MLX_BUILD_PYTHON_BINDINGS)
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message(STATUS "Building Python bindings.")
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find_package(
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Python 3.8
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COMPONENTS Interpreter Development.Module
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REQUIRED)
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execute_process(
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COMMAND "${Python_EXECUTABLE}" -m nanobind --cmake_dir
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OUTPUT_STRIP_TRAILING_WHITESPACE
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OUTPUT_VARIABLE nanobind_ROOT)
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find_package(nanobind CONFIG REQUIRED)
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add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/python/src)
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endif()
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if(MLX_BUILD_TESTS)
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include(CTest)
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add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/tests)
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endif()
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if(MLX_BUILD_EXAMPLES)
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add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/examples/cpp)
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endif()
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if(MLX_BUILD_BENCHMARKS)
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add_subdirectory(${CMAKE_CURRENT_LIST_DIR}/benchmarks/cpp)
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endif()
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# ----------------------------- Installation -----------------------------
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include(GNUInstallDirs)
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# Install library
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install(
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TARGETS mlx
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EXPORT MLXTargets
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
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ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
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RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
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INCLUDES
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DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
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# Install headers
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install(
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DIRECTORY ${CMAKE_CURRENT_LIST_DIR}/mlx
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DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
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COMPONENT headers
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FILES_MATCHING
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PATTERN "*.h"
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PATTERN "backend/metal/kernels.h" EXCLUDE)
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# Install metal dependencies
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if(MLX_BUILD_METAL)
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# Install metal cpp
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install(
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DIRECTORY ${metal_cpp_SOURCE_DIR}/
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DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/metal_cpp
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COMPONENT metal_cpp_source)
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endif()
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# Install cmake config
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set(MLX_CMAKE_BUILD_CONFIG ${CMAKE_BINARY_DIR}/MLXConfig.cmake)
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set(MLX_CMAKE_BUILD_VERSION_CONFIG ${CMAKE_BINARY_DIR}/MLXConfigVersion.cmake)
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set(MLX_CMAKE_INSTALL_MODULE_DIR share/cmake/MLX)
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install(
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EXPORT MLXTargets
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FILE MLXTargets.cmake
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DESTINATION ${MLX_CMAKE_INSTALL_MODULE_DIR})
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include(CMakePackageConfigHelpers)
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write_basic_package_version_file(
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${MLX_CMAKE_BUILD_VERSION_CONFIG}
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COMPATIBILITY SameMajorVersion
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VERSION ${MLX_VERSION})
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configure_package_config_file(
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${CMAKE_CURRENT_LIST_DIR}/mlx.pc.in ${MLX_CMAKE_BUILD_CONFIG}
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INSTALL_DESTINATION ${MLX_CMAKE_INSTALL_MODULE_DIR}
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NO_CHECK_REQUIRED_COMPONENTS_MACRO
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PATH_VARS CMAKE_INSTALL_LIBDIR CMAKE_INSTALL_INCLUDEDIR
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MLX_CMAKE_INSTALL_MODULE_DIR)
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install(FILES ${MLX_CMAKE_BUILD_CONFIG} ${MLX_CMAKE_BUILD_VERSION_CONFIG}
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DESTINATION ${MLX_CMAKE_INSTALL_MODULE_DIR})
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install(DIRECTORY ${CMAKE_MODULE_PATH}/
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DESTINATION ${MLX_CMAKE_INSTALL_MODULE_DIR})
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