microsoft/onnxruntime provides build instruction for ARMv7l python wheel which requires onnx/onnx. But it doesn't provide binary package or build instruction for ARMv7l. So I've written a dockerfile to build onnx/onnx python wheel.
Build instruction
1. Create a build directory
mkdir build-onnx
cd build-onnx
2. Save the dockerfile on into the build directory
-
Dockerfile.arm32v7
FROM balenalib/raspberrypi3-python:latest-stretch-build
ARG REPO_URL=https://github.com/onnx/onnx
ARG BRANCH=master
#Enforces cross-compilation through Qemu
RUN [ "cross-build-start" ]
RUN install_packages \\
sudo \\
build-essential \\
cmake \\
git \\
python3 \\
python3-pip \\
python3-dev \\
libprotoc-dev \\
protobuf-compiler
RUN pip3 install --upgrade pip setuptools wheel
RUN pip3 install numpy
# Prepare onnx Repo
WORKDIR /code
RUN git clone --single-branch --branch ${BRANCH} --recursive ${REPO_URL} onnx
# Start the basic build
WORKDIR /code/onnx
RUN python3 setup.py bdist_wheel
# Build Output
RUN realpath /code/onnx/dist/onnx-*.whl
RUN [ "cross-build-end" ]
3. Run docker build
It will take several hours depending on your machine specs.
docker build -t onnx-arm32v7 -f Dockerfile.arm32v7 .
4. Note the full path of the .whl file
It will print the path something like this.
Step 12/13 : RUN realpath /code/onnx/dist/onnx-*.whl
---> Running in ded3b4302e29
/code/onnx/dist/onnx-1.6.0-cp35-cp35m-linux_armv7l.whl
5. Copy the Python wheel from the docker image
docker create -ti --name onnx_temp onnx-arm32v7 bash
docker cp onnx_temp:/code/onnx/dist/onnx-1.6.0-cp35-cp35m-linux_armv7l.whl .
docker rm -fv onnx_temp
6. Copy the wheel file to your ARMv7l device
example:
scp onnx-1.6.0-cp35-cp35m-linux_armv7l.whl pi@RaspberryPi:/home/pi/
7. On device, install the wheel file
pip install onnx-1.6.0-cp35-cp35m-linux_armv7l.whl
Top comments (1)
hello, i tried using your dockerfile to build onnx for a raspberry pi 4b , my qemu seems to be giving me issues . i get an error: QEMU: uncaught target signal 11 (Segmentation fault) in an aarch64 image , just when the build is about to start. Can you please send me a link to the final build .whl file .