[Question] where does torch.ops.torch_sparse come from?

[q-aaronzolnailucas]

Trying to dive into how sparse-sparse matrix multiplication is working but I can't figure out where this import comes from, if I try importing it in a notebook with torch and torch_sparse imported I get an import error, but I see it's used in the source code of matmul.py. Where does this come from?

[rusty1s]

The implementation of spspmm is here (CPU) and here (GPU). For GPU, we make use of cusparse routines, while we implement our own simple variant for CPU-processing.

[rusty1s]

What's the issue you experience? Happy to help with installation :)

[github-actions]

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