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https://github.com/zebrajr/pytorch.git
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6de6041585
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/39868 ### Summary why disable NNPACK on iOS - To stay consistency with our internal version - It's currently blocking some external users due to its lack support of x86 architecture - https://github.com/pytorch/pytorch/issues/32040 - https://discuss.pytorch.org/t/undefined-symbols-for-architecture-x86-64-for-libtorch-in-swift-unit-test/84552/6 - NNPACK uses fast convolution algorithms (FFT, winograd) to reduce the computational complexity of convolutions with large kernel size. The algorithmic speedup is limited to specific conv params which are unlikely to appear in mobile networks. - Since XNNPACK has been enabled, it performs much better than NNPACK on depthwise-separable convolutions which is the algorithm being used by most of mobile computer vision networks. ### Test Plan - CI Checks Test Plan: Imported from OSS Differential Revision: D22087365 Pulled By: xta0 fbshipit-source-id: 89a959b0736c1f8703eff10723a8fbd02357fd4a
125 lines
4.6 KiB
Bash
Executable File
125 lines
4.6 KiB
Bash
Executable File
#!/bin/bash -xe
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##############################################################################
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# Example command to build the iOS target.
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##############################################################################
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#
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# This script shows how one can build a Caffe2 binary for the iOS platform
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# using ios-cmake. This is very similar to the android-cmake - see
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# build_android.sh for more details.
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CAFFE2_ROOT="$( cd "$(dirname "$0")"/.. ; pwd -P)"
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CMAKE_ARGS=()
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if [ -z "${BUILD_CAFFE2_MOBILE:-}" ]; then
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# Build PyTorch mobile
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CMAKE_ARGS+=("-DUSE_STATIC_DISPATCH=ON")
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CMAKE_ARGS+=("-DCMAKE_PREFIX_PATH=$(python -c 'from distutils.sysconfig import get_python_lib; print(get_python_lib())')")
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CMAKE_ARGS+=("-DPYTHON_EXECUTABLE=$(python -c 'import sys; print(sys.executable)')")
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CMAKE_ARGS+=("-DBUILD_CUSTOM_PROTOBUF=OFF")
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# custom build with selected ops
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if [ -n "${SELECTED_OP_LIST}" ]; then
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SELECTED_OP_LIST="$(cd $(dirname $SELECTED_OP_LIST); pwd -P)/$(basename $SELECTED_OP_LIST)"
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echo "Choose SELECTED_OP_LIST file: $SELECTED_OP_LIST"
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if [ ! -r ${SELECTED_OP_LIST} ]; then
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echo "Error: SELECTED_OP_LIST file ${SELECTED_OP_LIST} not found."
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exit 1
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fi
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CMAKE_ARGS+=("-DSELECTED_OP_LIST=${SELECTED_OP_LIST}")
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fi
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# bitcode
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if [ "${ENABLE_BITCODE:-}" == '1' ]; then
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CMAKE_ARGS+=("-DCMAKE_C_FLAGS=-fembed-bitcode")
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CMAKE_ARGS+=("-DCMAKE_CXX_FLAGS=-fembed-bitcode")
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fi
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else
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# Build Caffe2 mobile
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CMAKE_ARGS+=("-DBUILD_CAFFE2_MOBILE=ON")
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# Build protobuf from third_party so we have a host protoc binary.
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echo "Building protoc"
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BITCODE_FLAGS="-DCMAKE_C_FLAGS=-fembed-bitcode -DCMAKE_CXX_FLAGS=-fembed-bitcode "
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$CAFFE2_ROOT/scripts/build_host_protoc.sh --other-flags $BITCODE_FLAGS
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# Use locally built protoc because we'll build libprotobuf for the
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# target architecture and need an exact version match.
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CMAKE_ARGS+=("-DCAFFE2_CUSTOM_PROTOC_EXECUTABLE=$CAFFE2_ROOT/build_host_protoc/bin/protoc")
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# Bitcode is enabled by default for caffe2
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CMAKE_ARGS+=("-DCMAKE_C_FLAGS=-fembed-bitcode")
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CMAKE_ARGS+=("-DCMAKE_CXX_FLAGS=-fembed-bitcode")
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fi
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# Use ios-cmake to build iOS project from CMake.
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# This projects sets CMAKE_C_COMPILER to /usr/bin/gcc and
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# CMAKE_CXX_COMPILER to /usr/bin/g++. In order to use ccache (if it is available) we
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# must override these variables via CMake arguments.
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CMAKE_ARGS+=("-DCMAKE_TOOLCHAIN_FILE=$CAFFE2_ROOT/cmake/iOS.cmake")
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if [ -n "${CCACHE_WRAPPER_PATH:-}"]; then
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CCACHE_WRAPPER_PATH=/usr/local/opt/ccache/libexec
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fi
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if [ -d "$CCACHE_WRAPPER_PATH" ]; then
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CMAKE_ARGS+=("-DCMAKE_C_COMPILER=$CCACHE_WRAPPER_PATH/gcc")
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CMAKE_ARGS+=("-DCMAKE_CXX_COMPILER=$CCACHE_WRAPPER_PATH/g++")
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fi
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# IOS_PLATFORM controls type of iOS platform (see ios-cmake)
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if [ -n "${IOS_PLATFORM:-}" ]; then
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CMAKE_ARGS+=("-DIOS_PLATFORM=${IOS_PLATFORM}")
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if [ "${IOS_PLATFORM}" == "WATCHOS" ]; then
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# enable bitcode by default for watchos
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CMAKE_ARGS+=("-DCMAKE_C_FLAGS=-fembed-bitcode")
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CMAKE_ARGS+=("-DCMAKE_CXX_FLAGS=-fembed-bitcode")
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# disable the QNNPACK
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CMAKE_ARGS+=("-DUSE_PYTORCH_QNNPACK=OFF")
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fi
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else
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# IOS_PLATFORM is not set, default to OS, which builds iOS.
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CMAKE_ARGS+=("-DIOS_PLATFORM=OS")
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fi
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if [ -n "${IOS_ARCH:-}" ]; then
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CMAKE_ARGS+=("-DIOS_ARCH=${IOS_ARCH}")
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fi
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# Don't build binaries or tests (only the library)
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CMAKE_ARGS+=("-DBUILD_TEST=OFF")
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CMAKE_ARGS+=("-DBUILD_BINARY=OFF")
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CMAKE_ARGS+=("-DBUILD_PYTHON=OFF")
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# Disable unused dependencies
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CMAKE_ARGS+=("-DUSE_CUDA=OFF")
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CMAKE_ARGS+=("-DUSE_GFLAGS=OFF")
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CMAKE_ARGS+=("-DUSE_OPENCV=OFF")
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CMAKE_ARGS+=("-DUSE_LMDB=OFF")
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CMAKE_ARGS+=("-DUSE_LEVELDB=OFF")
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CMAKE_ARGS+=("-DUSE_MPI=OFF")
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CMAKE_ARGS+=("-DUSE_NUMPY=OFF")
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CMAKE_ARGS+=("-DUSE_NNPACK=OFF")
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# pthreads
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CMAKE_ARGS+=("-DCMAKE_THREAD_LIBS_INIT=-lpthread")
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CMAKE_ARGS+=("-DCMAKE_HAVE_THREADS_LIBRARY=1")
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CMAKE_ARGS+=("-DCMAKE_USE_PTHREADS_INIT=1")
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# Only toggle if VERBOSE=1
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if [ "${VERBOSE:-}" == '1' ]; then
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CMAKE_ARGS+=("-DCMAKE_VERBOSE_MAKEFILE=1")
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fi
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# Now, actually build the iOS target.
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BUILD_ROOT=${BUILD_ROOT:-"$CAFFE2_ROOT/build_ios"}
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INSTALL_PREFIX=${BUILD_ROOT}/install
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mkdir -p $BUILD_ROOT
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cd $BUILD_ROOT
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cmake "$CAFFE2_ROOT" \
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-DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX \
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-DCMAKE_BUILD_TYPE=MinSizeRel \
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-DBUILD_SHARED_LIBS=OFF \
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${CMAKE_ARGS[@]} \
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$@
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cmake --build . -- "-j$(sysctl -n hw.ncpu)"
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# copy headers and libs to install directory
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echo "Will install headers and libs to $INSTALL_PREFIX for further Xcode project usage."
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make install
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echo "Installation completed, now you can copy the headers/libs from $INSTALL_PREFIX to your Xcode project directory."
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