2200939416
* Upgrading to NCCL2 * Part - II of NCCL2 upgradation - Doc updates to build with nccl2 - Dockerfile.gpu update for a correct CI build with nccl2 - Updated FindNccl package to have env-var NCCL_ROOT to take precedence * Upgrading to v9.2 for CI workflow, since it has the nccl2 binaries available * Added NCCL2 license + copy the nccl binaries into /usr location for the FindNccl module to find * Set LD_LIBRARY_PATH variable to pick nccl2 binary at runtime * Need the nccl2 library download instructions inside Dockerfile.release as well * Use NCCL2 as a static library
59 lines
1.9 KiB
CMake
59 lines
1.9 KiB
CMake
#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# Tries to find NCCL headers and libraries.
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#
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# Usage of this module as follows:
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#
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# find_package(NCCL)
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#
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# Variables used by this module, they can change the default behaviour and need
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# to be set before calling find_package:
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#
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# NCCL_ROOT - When set, this path is inspected instead of standard library
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# locations as the root of the NCCL installation.
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# The environment variable NCCL_ROOT overrides this veriable.
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#
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# This module defines
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# Nccl_FOUND, whether nccl has been found
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# NCCL_INCLUDE_DIR, directory containing header
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# NCCL_LIBRARY, directory containing nccl library
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# NCCL_LIB_NAME, nccl library name
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#
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# This module assumes that the user has already called find_package(CUDA)
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set(NCCL_LIB_NAME nccl_static)
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find_path(NCCL_INCLUDE_DIR
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NAMES nccl.h
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PATHS $ENV{NCCL_ROOT}/include ${NCCL_ROOT}/include ${CUDA_INCLUDE_DIRS} /usr/include)
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find_library(NCCL_LIBRARY
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NAMES ${NCCL_LIB_NAME}
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PATHS $ENV{NCCL_ROOT}/lib ${NCCL_ROOT}/lib ${CUDA_INCLUDE_DIRS}/../lib /usr/lib)
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if (NCCL_INCLUDE_DIR AND NCCL_LIBRARY)
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get_filename_component(NCCL_LIBRARY ${NCCL_LIBRARY} PATH)
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endif ()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(Nccl DEFAULT_MSG
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NCCL_INCLUDE_DIR NCCL_LIBRARY)
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mark_as_advanced(
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NCCL_INCLUDE_DIR
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NCCL_LIBRARY
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NCCL_LIB_NAME
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)
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