Changes toward compiling the CPU backend on Windows (#2264)

* fix windows build

* wip

* mkldnn seems to build

* address various errors building cpu backend with MSVC

* wip

* wip

CMakeLists.txt

@@ -331,7 +331,11 @@ else()
     include(cmake/external_llvm.cmake)
 endif()
 
-include(cmake/external_tbb.cmake)
+if (WIN32)
+    include(cmake/external_tbb_prebuilt.cmake)
+else()
+    include(cmake/external_tbb.cmake)
+endif()
 if (NGRAPH_DISTRIBUTED_ENABLE)
     include(cmake/external_mlsl.cmake)
 endif()

cmake/external_gtest.cmake

@@ -24,7 +24,6 @@ include(ExternalProject)
 SET(GTEST_GIT_REPO_URL https://github.com/google/googletest.git)
 SET(GTEST_GIT_LABEL release-1.8.1)
 
-set(COMPILE_FLAGS -fPIC)
 if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
     if (DEFINED NGRAPH_USE_CXX_ABI)
         set(COMPILE_FLAGS "${COMPILE_FLAGS} -D_GLIBCXX_USE_CXX11_ABI=${NGRAPH_USE_CXX_ABI}")
@@ -33,6 +32,10 @@ endif()
 
 set(GTEST_OUTPUT_DIR ${EXTERNAL_PROJECTS_ROOT}/gtest/build/googlemock/gtest)
 
+if (APPLE OR LINUX)
+    set(COMPILE_FLAGS -fPIC)
+endif()
+
 set(GTEST_CMAKE_ARGS
     -DCMAKE_CXX_FLAGS=${COMPILE_FLAGS}
 )

cmake/external_mkldnn.cmake

@@ -98,7 +98,42 @@ else()
 endif()
 set(MKLDNN_LIBS ${EXTERNAL_PROJECTS_ROOT}/mkldnn/lib/libmkldnn${CMAKE_SHARED_LIBRARY_SUFFIX})
 
-ExternalProject_Add(
+if (WIN32)
+    ExternalProject_Add(
+        ext_mkldnn
+        DEPENDS ext_mkl
+        GIT_REPOSITORY ${MKLDNN_GIT_REPO_URL}
+        GIT_TAG ${MKLDNN_GIT_TAG}
+        UPDATE_COMMAND ""
+        CONFIGURE_COMMAND
+        # Patch gets mad if it applied for a second time so:
+        #    --forward tells patch to ignore if it has already been applied
+        #    --reject-file tells patch to not right a reject file
+        #    || exit 0 changes the exit code for the PATCH_COMMAND to zero so it is not an error
+        # I don't like it, but it works
+        PATCH_COMMAND patch -p1 --forward --reject-file=- -i ${CMAKE_SOURCE_DIR}/cmake/${MKLDNN_PATCH_FILE} || exit 0
+        # Uncomment below with any in-flight MKL-DNN patches
+        # PATCH_COMMAND patch -p1 < ${CMAKE_SOURCE_DIR}/third-party/patches/mkldnn-cmake-openmp.patch
+        CMAKE_GENERATOR ${CMAKE_GENERATOR}
+        CMAKE_GENERATOR_PLATFORM ${CMAKE_GENERATOR_PLATFORM}
+        CMAKE_GENERATOR_TOOLSET ${CMAKE_GENERATOR_TOOLSET}
+        CMAKE_ARGS
+            ${NGRAPH_FORWARD_CMAKE_ARGS}
+            -DWITH_TEST=FALSE
+            -DWITH_EXAMPLE=FALSE
+            -DCMAKE_INSTALL_PREFIX=${EXTERNAL_PROJECTS_ROOT}/mkldnn
+            -DMKLDNN_ENABLE_CONCURRENT_EXEC=ON
+            -DMKLROOT=${MKL_ROOT}
+        TMP_DIR "${EXTERNAL_PROJECTS_ROOT}/mkldnn/tmp"
+        STAMP_DIR "${EXTERNAL_PROJECTS_ROOT}/mkldnn/stamp"
+        DOWNLOAD_DIR "${EXTERNAL_PROJECTS_ROOT}/mkldnn/download"
+        SOURCE_DIR "${EXTERNAL_PROJECTS_ROOT}/mkldnn/src"
+        BINARY_DIR "${EXTERNAL_PROJECTS_ROOT}/mkldnn/build"
+        INSTALL_DIR "${EXTERNAL_PROJECTS_ROOT}/mkldnn"
+        EXCLUDE_FROM_ALL TRUE
+        )
+else()
+    ExternalProject_Add(
         ext_mkldnn
         DEPENDS ext_mkl
         GIT_REPOSITORY ${MKLDNN_GIT_REPO_URL}
@@ -132,6 +167,7 @@ ExternalProject_Add(
         INSTALL_DIR "${EXTERNAL_PROJECTS_ROOT}/mkldnn"
         EXCLUDE_FROM_ALL TRUE
         )
+endif()
 
 ExternalProject_Add_Step(
     ext_mkldnn
@@ -150,7 +186,7 @@ add_library(libmkldnn INTERFACE)
 add_dependencies(libmkldnn ext_mkldnn)
 target_include_directories(libmkldnn SYSTEM INTERFACE ${EXTERNAL_PROJECTS_ROOT}/mkldnn/include)
 target_link_libraries(libmkldnn INTERFACE
-    ${EXTERNAL_PROJECTS_ROOT}/mkldnn/lib/libmkldnn${CMAKE_SHARED_LIBRARY_SUFFIX}
+    ${EXTERNAL_PROJECTS_ROOT}/mkldnn/lib/${CMAKE_SHARED_LIBRARY_PREFIX}mkldnn${CMAKE_SHARED_LIBRARY_SUFFIX}
     libmkl
     )
 

cmake/external_tbb_prebuilt.cmake

+# ******************************************************************************
+# Copyright 2017-2018 Intel Corporation
+#
+# 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)
+
+if (WIN32)
+    set(ARCHIVE_FILE_BASE tbb2019_20181203oss)
+    set(TBB_FILE https://github.com/01org/tbb/releases/download/2019_U3/${ARCHIVE_FILE_BASE}_win.zip)
+    set(TBB_SHA1_HASH 1989458a49e780d76248edac13b963f80c9a460c)
+endif()
+
+ExternalProject_Add(
+    ext_tbb
+    URL ${TBB_FILE}
+    URL_HASH SHA1=${TBB_SHA1_HASH}
+    CONFIGURE_COMMAND ""
+    BUILD_COMMAND ""
+    INSTALL_COMMAND ""
+    UPDATE_COMMAND ""
+    DOWNLOAD_NO_PROGRESS TRUE
+    EXCLUDE_FROM_ALL TRUE
+    )
+
+ExternalProject_Get_Property(ext_tbb SOURCE_DIR)
+set(SOURCE_DIR ${SOURCE_DIR}/${ARCHIVE_FILE_BASE})
+
+set(TBB_LINK_LIBS
+    ${SOURCE_DIR}/lib/${CMAKE_SHARED_LIBRARY_PREFIX}clangTooling${CMAKE_SHARED_LIBRARY_SUFFIX}
+    ${SOURCE_DIR}/lib/${CMAKE_SHARED_LIBRARY_PREFIX}clangTooling${CMAKE_SHARED_LIBRARY_SUFFIX}
+    ${SOURCE_DIR}/lib/${CMAKE_SHARED_LIBRARY_PREFIX}clangTooling${CMAKE_SHARED_LIBRARY_SUFFIX}
+)
+
+add_library(libtbb INTERFACE)
+add_dependencies(libtbb ext_tbb)
+target_include_directories(libtbb SYSTEM INTERFACE ${SOURCE_DIR}/include)
+target_link_libraries(libtbb INTERFACE ${TBB_LINK_LIBS})

src/ngraph/runtime/cpu/CMakeLists.txt

@@ -133,7 +133,7 @@ if (NGRAPH_HALIDE)
         )
 endif()
 
-if (NGRAPH_TBB_ENABLE)
+if (NGRAPH_TBB_ENABLE AND NOT WIN32)
     include(${TBB_ROOT}/cmake/TBBBuild.cmake)
     tbb_build(TBB_ROOT ${TBB_ROOT} MAKE_ARGS tbb_build_dir=${CMAKE_CURRENT_BINARY_DIR}/tbb_build
                 tbb_build_prefix=tbb CONFIG_DIR TBB_DIR)
@@ -187,7 +187,9 @@ if (NGRAPH_CPU_ENABLE)
 
     if(OPENMP_FOUND)
         target_compile_options(cpu_backend PRIVATE "${OpenMP_CXX_FLAGS}")
+        if (NOT WIN32)
             target_compile_definitions(cpu_backend PRIVATE EIGEN_OPENMP)
+        endif()
     else()
          message(WARNING "The build toolset doesn't support OpenMP. This will impact performance and lead to slowdowns.")
     endif()
@@ -214,5 +216,7 @@ if (NGRAPH_CPU_ENABLE)
         set_property(TARGET cpu_backend APPEND PROPERTY LINK_FLAGS "-Wl,-Bsymbolic-functions -Wl,--exclude-libs=ALL")
     endif()
 
+    if (NOT WIN32)
         install(TARGETS cpu_backend LIBRARY DESTINATION ${NGRAPH_INSTALL_LIB})
+    endif()
 endif()

src/ngraph/runtime/cpu/builder/dot.cpp

@@ -176,12 +176,12 @@ namespace ngraph
                                 k,
                                 1.0f,
                                 static_cast<float*>(arg0_tensor),
-                                max(1UL, lda),
+                                max<size_t>(1UL, lda),
                                 static_cast<float*>(arg1_tensor),
-                                max(1UL, ldb),
+                                max<size_t>(1UL, ldb),
                                 beta,
                                 static_cast<float*>(out_tensor),
-                                max(1UL, result_shape[1]));
+                                max<size_t>(1UL, result_shape[1]));
                         };
                     functors.emplace_back(functor);
                     return;

src/ngraph/runtime/cpu/pass/cpu_layout.cpp

@@ -79,7 +79,7 @@ static shared_ptr<Node>
 {
     vector<shared_ptr<Node>> new_args;
     bool replace_node = false;
-    uint index = 0;
+    uint32_t index = 0;
 
     if (required_mds.size() != node->get_input_size())
     {
@@ -179,7 +179,7 @@ static void set_native_layouts(runtime::cpu::CPU_ExternalFunction* external_func
 {
     std::vector<shared_ptr<Node>> new_args;
     bool replace_node = false;
-    uint index = 0;
+    uint32_t index = 0;
     for (descriptor::Input& input : node->get_inputs())
     {
         const auto& output = input.get_output();

src/ngraph/runtime/reference/softmax.hpp

@@ -32,8 +32,7 @@ namespace ngraph
             void softmax(const T* arg, T* out, const Shape& shape, const AxisSet& axes)
             {
                 auto temp_shape = reduce(shape, axes);
-                auto temp_elements = std::accumulate(
-                    temp_shape.begin(), temp_shape.end(), 1, std::multiplies<size_t>());
+                auto temp_elements = shape_size(temp_shape);
                 auto temp_ptr = new T[temp_elements];
 
                 max(arg, temp_ptr, shape, temp_shape, axes);