51 lines
1.5 KiB
51 lines
1.5 KiB
INCLUDE(ExternalProject)
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SET(NCCL_SOURCE_DIR ${THIRD_PARTY_PATH}/nccl)
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INCLUDE_DIRECTORIES(${NCCL_SOURCE_DIR}/src/extern_nccl/src)
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if(WITH_DSO)
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# If we use DSO, we do not build nccl, just download the dependencies
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set(NCCL_BUILD_COMMAND "")
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set(NCCL_INSTALL_COMMAND "")
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set(NCCL_INSTALL_DIR "")
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else()
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# otherwise, we build nccl and link it.
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set(NCCL_BUILD_COMMAND "make -j 8")
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set(NCCL_INSTALL_COMMAND "make install")
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SET(NCCL_INSTALL_DIR ${THIRD_PARTY_PATH}/install/nccl)
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endif()
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ExternalProject_Add(
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extern_nccl
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${EXTERNAL_PROJECT_LOG_ARGS}
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GIT_REPOSITORY "https://github.com/NVIDIA/nccl.git"
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GIT_TAG "v1.3.4-1"
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PREFIX "${NCCL_SOURCE_DIR}"
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UPDATE_COMMAND ""
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CONFIGURE_COMMAND ""
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BUILD_COMMAND "${NCCL_BUILD_COMMAND}"
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INSTALL_COMMAND "${NCCL_INSTALL_COMMAND}"
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INSTALL_DIR "${NCCL_INSTALL_DIR}"
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TEST_COMMAND ""
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)
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if (WITH_DSO)
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if (${CMAKE_VERSION} VERSION_LESS "3.3.0")
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set(dummyfile ${CMAKE_CURRENT_BINARY_DIR}/lib_any_dummy.c)
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file(WRITE ${dummyfile} "const char * dummy_any = \"${dummyfile}\";")
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add_library(nccl STATIC ${dummyfile})
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else()
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add_library(nccl INTERFACE)
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endif()
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else()
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ADD_LIBRARY(nccl STATIC IMPORTED GLOBAL)
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SET_PROPERTY(TARGET nccl PROPERTY IMPORTED_LOCATION
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${NCCL_INSTALL_DIR}/lib/libnccl.a)
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endif()
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add_dependencies(nccl extern_nccl)
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LIST(APPEND external_project_dependencies nccl)
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