Don't start PyTorch thread just doing import. #516
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The following modules:
easyocrsentence_transformerstransformerstorchvisionall pull some shennanigans with
__init__.pywhereby the mere act of importing them starts a PyTorch thread. Aside from being rude, this has the side effect of attaching to the GPU and holding a reference count on the GPU devices in/dev/. In a Ray context, we don't want the driver to use the GPU, just the workers. Also, just generally, importing something should not be so heavy-handed.