I am trying to build PyTorch from source using TBB instead of OpenMP but I am getting the following errors every time:
/usr/bin/ld: <PATH>/pytorch/build/lib/libtorch_cpu.so: undefined reference to `omp_get_max_threads'
/usr/bin/ld: <PATH>/pytorch/build/lib/libtorch_cpu.so: undefined reference to `omp_get_num_threads'
/usr/bin/ld: <PATH>/pytorch/build/lib/libtorch_cpu.so: undefined reference to `GOMP_barrier'
/usr/bin/ld: <PATH>/pytorch/build/lib/libtorch_cpu.so: undefined reference to `GOMP_parallel'
/usr/bin/ld: <PATH>/pytorch/build/lib/libtorch_cpu.so: undefined reference to `omp_in_parallel'
/usr/bin/ld: <PATH>/pytorch/build/lib/libtorch_cpu.so: undefined reference to `omp_get_thread_num'
collect2: error: ld returned 1 exit status
make[2]: *** [caffe2/CMakeFiles/kernel_function_legacy_test.dir/build.make:109: bin/kernel_function_legacy_test] Error 1
You can find the full log file HERE:
To Reproduce
Steps to reproduce the behavior:
git clone https://github.com/pytorch/pytorch
cd pytorch
ATEN_THREADING=TBB BUILD_BINARY=1 USE_EIGEN_THREADPOOL=1 USE_CUDA=0 PARALLEL_BACKEND=NATIVE_TBB USE_OPENMP=0 USE_TBB=1 MKL_THREADING=TBB BLAS=MKL USE_MKLDNN=1 MKLDNN_THREADING=TBB BUILD_BINARY=1 python setup.py build --cmake 2>&1 | tee ~/output.txt
- PyTorch Version (e.g., 1.0): 1.10.0a0+git1798ff0
- OS (e.g., Linux): Manjaro
- How you installed PyTorch (
conda
,pip
, source): pip - Python version: 3.9.5
- CUDA/cuDNN version: NO
- GPU models and configuration: NO