161 lines
5.7 KiB
CMake
161 lines
5.7 KiB
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.
|
|
#===============================================================================
|
|
|
|
# Manage OpenMP-related compiler flags
|
|
#===============================================================================
|
|
|
|
if(OpenMP_cmake_included)
|
|
return()
|
|
endif()
|
|
set(OpenMP_cmake_included true)
|
|
include("cmake/Threading.cmake")
|
|
#include("cmake/MKL.cmake")
|
|
|
|
if (NOT MKLDNN_THREADING MATCHES "OMP")
|
|
# Enable OpenMP SIMD only
|
|
if(WIN32)
|
|
if(CMAKE_CXX_COMPILER_ID STREQUAL MSVC)
|
|
add_definitions(/Qpar)
|
|
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /Qopenmp-simd")
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /Qopenmp-simd")
|
|
endif()
|
|
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -qopenmp-simd")
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -qopenmp-simd")
|
|
else()
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fopenmp-simd")
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fopenmp-simd")
|
|
endif()
|
|
return()
|
|
endif()
|
|
|
|
set(MKLDNN_USES_INTEL_OPENMP FALSE)
|
|
|
|
if (APPLE AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
|
|
# OSX Clang doesn't have OpenMP by default.
|
|
# But we still want to build the library.
|
|
set(_omp_severity "WARNING")
|
|
else()
|
|
set(_omp_severity "FATAL_ERROR")
|
|
endif()
|
|
|
|
macro(forbid_link_compiler_omp_rt)
|
|
if (NOT WIN32)
|
|
set_if(OpenMP_C_FOUND
|
|
CMAKE_C_CREATE_SHARED_LIBRARY_FORBIDDEN_FLAGS
|
|
"${OpenMP_C_FLAGS}")
|
|
set_if(OpenMP_CXX_FOUND
|
|
CMAKE_CXX_CREATE_SHARED_LIBRARY_FORBIDDEN_FLAGS
|
|
"${OpenMP_CXX_FLAGS}")
|
|
if (NOT APPLE)
|
|
append(CMAKE_SHARED_LINKER_FLAGS "-Wl,--as-needed")
|
|
endif()
|
|
endif()
|
|
endmacro()
|
|
|
|
macro(use_intel_omp_rt)
|
|
# fast return
|
|
if (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
|
|
set(MKLDNN_USES_INTEL_OPENMP TRUE)
|
|
return()
|
|
endif()
|
|
|
|
# Do not link with compiler-native OpenMP library if Intel MKL is present.
|
|
# Rationale: Intel MKL comes with Intel OpenMP library which is compatible
|
|
# with all libraries shipped with compilers that Intel MKL-DNN supports.
|
|
get_filename_component(MKLIOMP5LIB "${MKLIOMP5LIB}" PATH)
|
|
find_library(IOMP5LIB
|
|
NAMES "iomp5" "iomp5md" "libiomp5" "libiomp5md"
|
|
HINTS ${MKLIOMP5LIB} )
|
|
if(IOMP5LIB)
|
|
forbid_link_compiler_omp_rt()
|
|
if (WIN32)
|
|
get_filename_component(MKLIOMP5DLL "${MKLIOMP5DLL}" PATH)
|
|
find_file(IOMP5DLL
|
|
NAMES "libiomp5.dll" "libiomp5md.dll"
|
|
HINTS ${MKLIOMP5DLL})
|
|
endif()
|
|
list(APPEND EXTRA_SHARED_LIBS ${IOMP5LIB})
|
|
else()
|
|
if (MKLDNN_THREADING STREQUAL "OMP:INTEL")
|
|
message(${_omp_severity} "Intel OpenMP runtime could not be found. "
|
|
"Please either use OpenMP runtime that comes with the compiler "
|
|
"(via -DMKLDNN_THREADING={OMP,OMP:COMP}), or "
|
|
"explicitely provide the path to libiomp with the "
|
|
"-DCMAKE_LIBRARY_PATH option")
|
|
endif()
|
|
endif()
|
|
endmacro()
|
|
|
|
if(WIN32 AND ${CMAKE_CXX_COMPILER_ID} STREQUAL MSVC)
|
|
add_definitions(/Qpar)
|
|
add_definitions(/openmp)
|
|
set(OpenMP_CXX_FOUND true)
|
|
elseif(MSVC AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
|
|
append(CMAKE_C_FLAGS "-Xclang -fopenmp")
|
|
append(CMAKE_CXX_FLAGS "-Xclang -fopenmp")
|
|
set(OpenMP_CXX_FOUND true)
|
|
list(APPEND EXTRA_SHARED_LIBS ${IOMP5LIB})
|
|
else()
|
|
find_package(OpenMP)
|
|
#newer version for findOpenMP (>= v. 3.9)
|
|
if(CMAKE_VERSION VERSION_LESS "3.9" AND OPENMP_FOUND)
|
|
if(${CMAKE_MAJOR_VERSION} VERSION_LESS "3" AND ${CMAKE_CXX_COMPILER_ID} STREQUAL "Intel")
|
|
# Override FindOpenMP flags for Intel Compiler (otherwise deprecated)
|
|
set(OpenMP_CXX_FLAGS "-fopenmp")
|
|
set(OpenMP_C_FLAGS "-fopenmp")
|
|
endif()
|
|
set(OpenMP_C_FOUND true)
|
|
set(OpenMP_CXX_FOUND true)
|
|
endif()
|
|
append_if(OpenMP_C_FOUND CMAKE_SRC_CCXX_FLAGS "${OpenMP_C_FLAGS}")
|
|
endif()
|
|
|
|
if (MKLDNN_THREADING MATCHES "OMP")
|
|
if (OpenMP_CXX_FOUND)
|
|
set_threading("OMP")
|
|
append(CMAKE_TEST_CCXX_FLAGS "${OpenMP_CXX_FLAGS}")
|
|
append(CMAKE_EXAMPLE_CCXX_FLAGS "${OpenMP_CXX_FLAGS}")
|
|
else()
|
|
message(${_omp_severity} "OpenMP library could not be found. "
|
|
"Proceeding might lead to highly sub-optimal performance.")
|
|
endif()
|
|
|
|
if (MKLDNN_THREADING STREQUAL "OMP:COMP")
|
|
set(IOMP5LIB "")
|
|
set(IOMP5DLL "")
|
|
else()
|
|
use_intel_omp_rt()
|
|
endif()
|
|
|
|
if(MKLIOMP5LIB)
|
|
set(MKLDNN_USES_INTEL_OPENMP TRUE)
|
|
endif()
|
|
else()
|
|
# Compilation happens with OpenMP to enable `#pragma omp simd`
|
|
# but during linkage OpenMP dependency should be avoided
|
|
forbid_link_compiler_omp_rt()
|
|
return()
|
|
endif()
|
|
|
|
set_ternary(_omp_lib_msg IOMP5LIB "${IOMP5LIB}" "provided by compiler")
|
|
message(STATUS "OpenMP lib: ${_omp_lib_msg}")
|
|
if(WIN32)
|
|
set_ternary(_omp_dll_msg IOMP5DLL "${IOMP5LIB}" "provided by compiler")
|
|
message(STATUS "OpenMP dll: ${_omp_dll_msg}")
|
|
endif()
|