Hi,
I am building Pytorch 1.7 from source on a raspberry pi zero (raspbian-lite: kernel version 4.19) and the build is hanging at the same spot every single time nearly indefinitely. Here are my steps:
sudo apt install libopenblas-dev libblas-dev m4 cmake cython python3-dev python3-yaml python3-setuptools python3-wheel python3-pillow python3-numpy git

git clone --recursive https://github.com/pytorch/pytorch
cd pytorch

export USE_CUDA=0
export USE_CUDNN=0
export BUILD_TEST=0
export USE_MKLDNN=0
export USE_DISTRIBUTED=0
export USE_NNPACK=0


(I have tried not setting these as well and I still get stuck at the same spot so I don’t think it’s this.I have also tried to run python3 setup.py clean prior and still no luck)
python3 setup.py install --verbose
It always hangs indefinitely (12+ hours) at this line Building CXX object caffe2/CMakeFiles/torch_cpu.dir/__/aten/src/ATen/Functions.cpp.o
or it hangs there and produces this error:
c++: fatal error: Killed signal terminated program cc1plus
compilation terminated.
make[2]: *** [caffe2/CMakeFiles/torch_cpu.dir/build.make:3632: caffe2/CMakeFiles/torch_cpu.dir/__/aten/src/ATen/Functions.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:1558: caffe2/CMakeFiles/torch_cpu.dir/all] Error 2
make: *** [Makefile:141: all] Error 2
Traceback (most recent call last):
File “setup.py”, line 737, in 
build_deps()
File “setup.py”, line 321, in build_deps
cmake=cmake)
File “/home/pi/pytorch/tools/build_pytorch_libs.py”, line 62, in build_caffe2
cmake.build(my_env)
File “/home/pi/pytorch/tools/setup_helpers/cmake.py”, line 345, in build
self.run(build_args, my_env)
File “/home/pi/pytorch/tools/setup_helpers/cmake.py”, line 141, in run
check_call(command, cwd=self.build_dir, env=env)
File “/usr/lib/python3.7/subprocess.py”, line 347, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command ‘[‘cmake’, ‘–build’, ‘.’, ‘–target’, ‘install’, ‘–config’, ‘Release’, ‘–’, ‘-j’, ‘1’]’ returned non-zero exit status 2.
Does anyone have an idea what could be causing this and what I could do to resolve?
Any help would be greatly appreciated!