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# Copyright 2017 The TensorFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
include (ExternalProject)
set(mkldnn_INCLUDE_DIRS ${CMAKE_CURRENT_BINARY_DIR}/mkldnn/src/mkldnn/include)
set(mkldnn_URL https://github.com/01org/mkl-dnn.git)
set(mkldnn_BUILD ${CMAKE_CURRENT_BINARY_DIR}/mkldnn/src/mkldnn/src)
set(mkldnn_TAG 3063b2e4c943983f6bf5f2fb9a490d4a998cd291)
if(WIN32)
if(${CMAKE_GENERATOR} MATCHES "Visual Studio.*")
set(mkldnn_STATIC_LIBRARIES ${CMAKE_CURRENT_BINARY_DIR}/mkldnn/src/mkldnn/src/Release/mkldnn.lib)
set(mkldnn_SHARED_LIBRARIES ${CMAKE_CURRENT_BINARY_DIR}/mkldnn/src/mkldnn/src/Release/mkldnn.dll)
set(mkldnn_BUILD ${CMAKE_CURRENT_BINARY_DIR}/mkldnn/src/mkldnn/src/Release)
else()
set(mkldnn_STATIC_LIBRARIES ${CMAKE_CURRENT_BINARY_DIR}/mkldnn/src/mkldnn/src/mkldnn.lib)
set(mkldnn_SHARED_LIBRARIES ${CMAKE_CURRENT_BINARY_DIR}/mkldnn/src/mkldnn/src/mkldnn.dll)
endif()
else()
set(mkldnn_STATIC_LIBRARIES ${CMAKE_CURRENT_BINARY_DIR}/mkldnn/src/mkldnn/src/libmkldnn.a)
endif()
ExternalProject_Add(mkldnn
PREFIX mkldnn
DEPENDS mkl
GIT_REPOSITORY ${mkldnn_URL}
GIT_TAG ${mkldnn_TAG}
DOWNLOAD_DIR "${DOWNLOAD_LOCATION}"
BUILD_IN_SOURCE 1
BUILD_BYPRODUCTS ${mkldnn_STATIC_LIBRARIES}
INSTALL_COMMAND ""
CMAKE_CACHE_ARGS
-DCMAKE_BUILD_TYPE:STRING=Release
-DCMAKE_VERBOSE_MAKEFILE:BOOL=OFF
-DMKLINC:STRING=${mkl_INCLUDE_DIRS}
)
# since mkldnn depends on mkl, copy the mkldnn.dll together with mklml.dll to mkl_bin_dirs
add_custom_target(mkldnn_copy_shared_to_destination DEPENDS mkldnn)
add_custom_command(TARGET mkldnn_copy_shared_to_destination PRE_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${mkldnn_SHARED_LIBRARIES} ${mkl_BIN_DIRS})
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