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Use external project for NCCL (#5028)
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Original file line number | Diff line number | Diff line change |
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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) | ||
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if(WITH_DSO) | ||
# If we use DSO, we do not build nccl, just download the dependencies | ||
set(NCCL_BUILD_COMMAND "") | ||
set(NCCL_INSTALL_COMMAND "") | ||
set(NCCL_INSTALL_DIR "") | ||
else() | ||
# otherwise, we build nccl and link it. | ||
set(NCCL_BUILD_COMMAND "make -j 8") | ||
set(NCCL_INSTALL_COMMAND "make install") | ||
SET(NCCL_INSTALL_DIR ${THIRD_PARTY_PATH}/install/nccl) | ||
endif() | ||
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ExternalProject_Add( | ||
extern_nccl | ||
${EXTERNAL_PROJECT_LOG_ARGS} | ||
GIT_REPOSITORY "https://github.com/NVIDIA/nccl.git" | ||
GIT_TAG "v1.3.4-1" | ||
PREFIX "${NCCL_SOURCE_DIR}" | ||
UPDATE_COMMAND "" | ||
CONFIGURE_COMMAND "" | ||
BUILD_COMMAND "${NCCL_BUILD_COMMAND}" | ||
INSTALL_COMMAND "${NCCL_INSTALL_COMMAND}" | ||
INSTALL_DIR "${NCCL_INSTALL_DIR}" | ||
TEST_COMMAND "" | ||
) | ||
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if (WITH_DSO) | ||
if (${CMAKE_VERSION} VERSION_LESS "3.3.0") | ||
set(dummyfile ${CMAKE_CURRENT_BINARY_DIR}/lib_any_dummy.c) | ||
file(WRITE ${dummyfile} "const char * dummy_any = \"${dummyfile}\";") | ||
add_library(nccl STATIC ${dummyfile}) | ||
else() | ||
add_library(nccl INTERFACE) | ||
endif() | ||
else() | ||
ADD_LIBRARY(nccl STATIC IMPORTED GLOBAL) | ||
SET_PROPERTY(TARGET nccl PROPERTY IMPORTED_LOCATION | ||
${NCCL_INSTALL_DIR}/lib/libnccl.a) | ||
endif() | ||
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add_dependencies(nccl extern_nccl) | ||
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LIST(APPEND external_project_dependencies nccl) |
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Original file line number | Diff line number | Diff line change |
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@@ -1,2 +1,3 @@ | ||
cc_library(dynamic_loader SRCS dynamic_loader.cc DEPS glog gflags) | ||
nv_library(dynload_cuda SRCS cublas.cc cudnn.cc curand.cc nccl.cc DEPS dynamic_loader) | ||
nv_library(dynload_cuda SRCS cublas.cc cudnn.cc curand.cc nccl.cc | ||
DEPS dynamic_loader nccl) |