pytorch/scripts/build_mobile.sh
Jiakai Liu 9a5e9d8cec [pytorch][mobile] change mobile build scripts to build PyTorch by default (#34203)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/34203

Currently cmake and mobile build scripts still build libcaffe2 by
default. To build pytorch mobile users have to set environment variable
BUILD_PYTORCH_MOBILE=1 or set cmake option BUILD_CAFFE2_MOBILE=OFF.

PyTorch mobile has been released for a while. It's about time to change
CMake and build scripts to build libtorch by default.

Changed caffe2 CI job to build libcaffe2 by setting BUILD_CAFFE2_MOBILE=1
environment variable. Only found android CI for libcaffe2 - do we ever
have iOS CI for libcaffe2?

Test Plan: Imported from OSS

Differential Revision: D20267274

Pulled By: ljk53

fbshipit-source-id: 9d997032a599c874d62fbcfc4f5d4fbf8323a12e
2020-03-05 23:40:47 -08:00

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2.2 KiB
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#!/bin/bash
##############################################################################
# Example command to build the mobile target.
##############################################################################
#
# This script shows how one can build a libtorch library optimized for mobile
# devices using host toolchain.
set -e
export BUILD_PYTORCH_MOBILE_WITH_HOST_TOOLCHAIN=1
CAFFE2_ROOT="$( cd "$(dirname "$0")"/.. ; pwd -P)"
echo "Bash: $(/bin/bash --version | head -1)"
echo "Caffe2 path: $CAFFE2_ROOT"
# Now, actually build the Android target.
BUILD_ROOT=${BUILD_ROOT:-"$CAFFE2_ROOT/build_mobile"}
INSTALL_PREFIX=${BUILD_ROOT}/install
mkdir -p $BUILD_ROOT
cd $BUILD_ROOT
CMAKE_ARGS=()
CMAKE_ARGS+=("-DUSE_STATIC_DISPATCH=ON")
CMAKE_ARGS+=("-DCMAKE_PREFIX_PATH=$(python -c 'from distutils.sysconfig import get_python_lib; print(get_python_lib())')")
CMAKE_ARGS+=("-DPYTHON_EXECUTABLE=$(python -c 'import sys; print(sys.executable)')")
CMAKE_ARGS+=("-DBUILD_CUSTOM_PROTOBUF=OFF")
CMAKE_ARGS+=("-DBUILD_SHARED_LIBS=OFF")
# custom build with selected ops
if [ -n "${SELECTED_OP_LIST}" ]; then
CMAKE_ARGS+=("-DSELECTED_OP_LIST=${SELECTED_OP_LIST}")
fi
# If Ninja is installed, prefer it to Make
if [ -x "$(command -v ninja)" ]; then
CMAKE_ARGS+=("-GNinja")
fi
# Disable unused dependencies
CMAKE_ARGS+=("-DUSE_CUDA=OFF")
CMAKE_ARGS+=("-DUSE_GFLAGS=OFF")
CMAKE_ARGS+=("-DUSE_OPENCV=OFF")
CMAKE_ARGS+=("-DUSE_LMDB=OFF")
CMAKE_ARGS+=("-DUSE_LEVELDB=OFF")
CMAKE_ARGS+=("-DUSE_MPI=OFF")
CMAKE_ARGS+=("-DUSE_OPENMP=OFF")
# Only toggle if VERBOSE=1
if [ "${VERBOSE:-}" == '1' ]; then
CMAKE_ARGS+=("-DCMAKE_VERBOSE_MAKEFILE=1")
fi
# Use-specified CMake arguments go last to allow overridding defaults
CMAKE_ARGS+=("$@")
cmake "$CAFFE2_ROOT" \
-DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX \
-DCMAKE_BUILD_TYPE=Release \
"${CMAKE_ARGS[@]}"
# Cross-platform parallel build
if [ -z "$MAX_JOBS" ]; then
if [ "$(uname)" == 'Darwin' ]; then
MAX_JOBS=$(sysctl -n hw.ncpu)
else
MAX_JOBS=$(nproc)
fi
fi
echo "Will install headers and libs to $INSTALL_PREFIX for further project usage."
cmake --build . --target install -- "-j${MAX_JOBS}"
echo "Installation completed, now you can copy the headers/libs from $INSTALL_PREFIX to your project directory."