Yesterday, I noticed that one of my Github workflows (involving numba
), which was successfully executing before, was now unexpectedly failing for Python 3.9 with the following error:
$ python -c “from numba.np.ufunc import omppool”
Traceback (most recent call last):
File “”, line 1, in
ImportError: dlopen(/Users/runner/hostedtoolcache/Python/3.9.17/x64/lib/python3.9/site-packages/numba/np/ufunc/omppool.cpython-39-darwin.so, 0x0002): Library not loaded: ‘@rpath/libiomp5.dylib’
Referenced from: ‘/Users/runner/hostedtoolcache/Python/3.9.17/x64/lib/python3.9/site-packages/numba/np/ufunc/omppool.cpython-39-darwin.so’
Reason: tried: ‘/Users/ci/miniconda3/envs/numba-ci/envs/testenv_8f3f63b2-cafa-4000-b840-be4d8f80b9d3/lib/libiomp5.dylib’ (no such file), ‘/Users/ci/miniconda3/envs/numba-ci/envs/testenv_8f3f63b2-cafa-4000-b840-be4d8f80b9d3/lib/libiomp5.dylib’ (no such file), ‘/Users/ci/miniconda3/envs/numba-ci/envs/testenv_8f3f63b2-cafa-4000-b840-be4d8f80b9d3/lib/libiomp5.dylib’ (no such file), ‘/Users/ci/miniconda3/envs/numba-ci/envs/testenv_8f3f63b2-cafa-4000-b840-be4d8f80b9d3/lib/libiomp5.dylib’ (no such file), ‘/Users/ci/miniconda3/envs/numba-ci/envs/testenv_8f3f63b2-cafa-4000-b840-be4d8f80b9d3/lib/libiomp5.dylib’ (no such file), ‘/Users/ci/miniconda3/envs/numba-ci/envs/testenv_8f3f63b2-cafa-4000-b840-be4d8f80b9d3/lib/libiomp5.dylib’ (no such file), ‘/usr/local/lib/libiomp5.dylib’ (no such file), ‘/usr/lib/libiomp5.dylib’ (no such file)
- It is having trouble finding
libiomp5.dylib
but this seems to only affect Python 3.9 and not Python [3.8, 3.10, 3.11] - While
libomp
is already installed,libiomp5.dylib
doesn’t seem to be located in the usual places (i.e.,/usr/lib
or/usr/local/lib
) - If somebody can help me locate
libiomp5.dylib
within the Github Actions environment then I can redirectomppool.cpython-39-darwin.so
to point to the right@rpath
on my own
Lastly, for easier reproducibility, I’ve created the following public numba test repo along with the aforementioned Github Actions workflow. The corresponding failing Github Actions workflow output is here.
I would appreciate any help or guidance for resolving this.