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Cross-compilation of PyTorch v1.9.0 armv7l for RaspberryPi OS Buster
1. Procedure
A very time-consuming but very easy cross-compilation procedure. Performed on Ubuntu 20.04 x86_64.
$ docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
$ docker run --rm -it \
-v ${PWD}:/workdir \
pinto0309/raspios_lite_armhf:2021-03-04_buster \
/bin/bash
All of the following operations were performed on a RaspberryPi OS armv7l 32-bit Docker container running on Ubuntu 20.04 x86_64.
# uname -a
Linux 1497e0a2bec2 5.11.0-27-generic #29~20.04.1-Ubuntu SMP Wed Aug 11 15:58:17 UTC 2021 armv7l GNU/Linux
# ldd --version
ldd (Debian GLIBC 2.28-10+rpi1) 2.28
Copyright (C) 2018 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.
# apt update && apt upgrade -y
# apt-get update && apt-get install -y \
openjdk-11-jdk automake autoconf libpng-dev nano \
curl zip unzip libtool swig zlib1g-dev pkg-config git wget xz-utils \
libopenblas-dev libblas-dev m4 cmake cython python3-dev python3-yaml \
python3-setuptools python3-pip python3-mock \
libpython3-dev libpython3-all-dev g++ gcc
# pip3 install numpy==1.19.5
or
# pip3 install numpy==1.21.2
# pip3 install -U six wheel mock cmake && ldconfig
# NO_CUDA=1 \
&& NO_DISTRIBUTED=1 \
&& NO_MKLDNN=1 \
&& USE_NCCL=0 \
&& BUILD_TEST=0 \
&& TORCH=v1.9.0 \
&& TORCHVISION=v0.10.0 \
&& TORCHAUDIO=v0.9.0
# git clone -b ${TORCH} https://github.com/pytorch/pytorch.git
# cd pytorch \
&& git submodule update --init --recursive \
&& pip3 install -r requirements.txt \
&& python3 setup.py build \
&& cd build/lib.linux-armv7l-3.7/torch \
&& ln -s _C.cpython-37m-arm-linux-gnueabihf.so _C.so \
&& ln -s _dl.cpython-37m-arm-linux-gnueabihf.so _dl.so \
&& cd ../../..
# python3 setup.py bdist_wheel
-- ******** Summary ********
-- General:
-- CMake version : 3.21.2
-- CMake command : /usr/local/lib/python3.7/dist-packages/cmake/data/bin/cmake
-- System : Linux
-- C++ compiler : /usr/bin/c++
-- C++ compiler id : GNU
-- C++ compiler version : 8.3.0
-- Using ccache if found : ON
-- Found ccache : CCACHE_PROGRAM-NOTFOUND
-- CXX flags : -Wno-deprecated -fvisibility-inlines-hidden -DUSE_PTHREADPOOL -fopenmp -DNDEBUG -DUSE_KINETO -DLIBKINETO_NOCUPTI -DUSE_QNNPACK -DUSE_PYTORCH_QNNPACK -DUSE_XNNPACK -DSYMBOLICATE_MOBILE_DEBUG_HANDLE -O2 -fPIC -Wno-narrowing -Wall -Wextra -Werror=return-type -Wno-missing-field-initializers -Wno-type-limits -Wno-array-bounds -Wno-unknown-pragmas -Wno-sign-compare -Wno-unused-parameter -Wno-unused-variable -Wno-unused-function -Wno-unused-result -Wno-unused-local-typedefs -Wno-strict-overflow -Wno-strict-aliasing -Wno-error=deprecated-declarations -Wno-stringop-overflow -Wno-psabi -Wno-error=pedantic -Wno-error=redundant-decls -Wno-error=old-style-cast -fdiagnostics-color=always -faligned-new -Wno-unused-but-set-variable -Wno-maybe-uninitialized -fno-math-errno -fno-trapping-math -Werror=format -Werror=cast-function-type -Wno-stringop-overflow
-- Build type : Release
-- Compile definitions : ONNX_ML=1;ONNXIFI_ENABLE_EXT=1;ONNX_NAMESPACE=onnx_torch;HAVE_MMAP=1;_FILE_OFFSET_BITS=64;HAVE_SHM_OPEN=1;HAVE_SHM_UNLINK=1;HAVE_MALLOC_USABLE_SIZE=1;USE_EXTERNAL_MZCRC;MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS
-- CMAKE_PREFIX_PATH : /usr/lib/python3.7/site-packages
-- CMAKE_INSTALL_PREFIX : /pytorch/torch
-- USE_GOLD_LINKER : OFF
--
-- TORCH_VERSION : 1.9.0
-- CAFFE2_VERSION : 1.9.0
-- BUILD_CAFFE2 : ON
-- BUILD_CAFFE2_OPS : ON
-- BUILD_CAFFE2_MOBILE : OFF
-- BUILD_STATIC_RUNTIME_BENCHMARK: OFF
-- BUILD_TENSOREXPR_BENCHMARK: OFF
-- BUILD_BINARY : OFF
-- BUILD_CUSTOM_PROTOBUF : ON
-- Link local protobuf : ON
-- BUILD_DOCS : OFF
-- BUILD_PYTHON : True
-- Python version : 3.7.3
-- Python executable : /usr/bin/python3
-- Pythonlibs version : 3.7.3
-- Python library : /usr/lib/libpython3.7m.so.1.0
-- Python includes : /usr/include/python3.7m
-- Python site-packages: lib/python3.7/site-packages
-- BUILD_SHARED_LIBS : ON
-- CAFFE2_USE_MSVC_STATIC_RUNTIME : OFF
-- BUILD_TEST : True
-- BUILD_JNI : OFF
-- BUILD_MOBILE_AUTOGRAD : OFF
-- BUILD_LITE_INTERPRETER: OFF
-- INTERN_BUILD_MOBILE :
-- USE_BLAS : 1
-- BLAS : open
-- USE_LAPACK : 1
-- LAPACK : open
-- USE_ASAN : OFF
-- USE_CPP_CODE_COVERAGE : OFF
-- USE_CUDA : OFF
-- USE_ROCM : OFF
-- USE_EIGEN_FOR_BLAS : ON
-- USE_FBGEMM : OFF
-- USE_FAKELOWP : OFF
-- USE_KINETO : ON
-- USE_FFMPEG : OFF
-- USE_GFLAGS : OFF
-- USE_GLOG : OFF
-- USE_LEVELDB : OFF
-- USE_LITE_PROTO : OFF
-- USE_LMDB : OFF
-- USE_METAL : OFF
-- USE_PYTORCH_METAL : OFF
-- USE_FFTW : OFF
-- USE_MKL : OFF
-- USE_MKLDNN : OFF
-- USE_NCCL : OFF
-- USE_NNPACK : ON
-- USE_NUMPY : OFF
-- USE_OBSERVERS : ON
-- USE_OPENCL : OFF
-- USE_OPENCV : OFF
-- USE_OPENMP : ON
-- USE_TBB : OFF
-- USE_VULKAN : OFF
-- USE_PROF : OFF
-- USE_QNNPACK : ON
-- USE_PYTORCH_QNNPACK : ON
-- USE_REDIS : OFF
-- USE_ROCKSDB : OFF
-- USE_ZMQ : OFF
-- USE_DISTRIBUTED : ON
-- USE_MPI : OFF
-- USE_GLOO : OFF
-- USE_TENSORPIPE : ON
-- USE_DEPLOY : OFF
-- Public Dependencies : Threads::Threads
-- Private Dependencies : pthreadpool;cpuinfo;qnnpack;pytorch_qnnpack;nnpack;XNNPACK;fp16;tensorpipe;aten_op_header_gen;foxi_loader;rt;fmt::fmt-header-only;kineto;gcc_s;gcc;dl
-- Configuring done
# cp dist/* /workdir
# cd ..
# git clone -b ${TORCHVISION} https://github.com/pytorch/vision.git
# cd vision \
&& git submodule update --init --recursive \
&& pip3 install /pytorch/dist/*.whl \
&& python3 setup.py build \
&& python3 setup.py bdist_wheel
# cp dist/* /workdir
# cd ..
# git clone -b ${TORCHAUDIO} https://github.com/pytorch/audio.git
# cd audio \
&& git submodule update --init --recursive \
&& apt-get install -y sox libsox-dev \
&& pip3 install ninja \
&& python3 setup.py build \
&& python3 setup.py bdist_wheel
# cp dist/* /workdir
# cd ..
# exit
2. Install
Running on RaspberryPi.
$ sudo apt install -y libatlas-base-dev \
libpng-dev nano curl zip unzip libtool \
swig zlib1g-dev pkg-config git wget xz-utils \
libopenblas-dev libblas-dev m4 cmake cython \
python3-dev python3-yaml
$ sudo pip3 install numpy==1.19.5
or
$ sudo pip3 install numpy==1.21.2
$ sudo pip3 install \
torch-*_armv7l_.whl \
torchvision-*_armv7l.whl \
torchaudio-*_armv7l.whl
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