pytorch

69f86ecd - Sparse CSR CUDA: add `torch.add` with all inputs sparse (#63948)

Sparse CSR CUDA: add `torch.add` with all inputs sparse (#63948) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/63948 This PR adds `torch.add(a, b, alpha=None, out=out)` variant with `a, b, out` all being sparse CSR tensors. The underlying cuSPARSE function works only with 32-bit indices, and in the current implementation, the result tensor has 32-bit indices. Input tensors can have both 64-bit and 32-bit indices tensors. Fixes https://github.com/pytorch/pytorch/issues/59060 cc nikitaved pearu cpuhrsch IvanYashchuk ngimel Test Plan: Imported from OSS Reviewed By: zou3519 Differential Revision: D31909731 Pulled By: cpuhrsch fbshipit-source-id: 656f523e3947fec56b2f93c474fb6fd49f0360ca