[Fixed] Enable Half, BFloat16, and Complex dtypes for coo-coo sparse matmul [CUDA] (#59980)
Summary:
This PR enables Half, BFloat16, ComplexFloat, and ComplexDouble support for matrix-matrix multiplication of COO sparse matrices.
The change is applied only to CUDA 11+ builds.
`cusparseSpGEMM` also supports `CUDA_C_16F` (complex float16) and `CUDA_C_16BF` (complex bfloat16). PyTorch also supports the complex float16 dtype (`ScalarType::ComplexHalf`), but there is no convenient dispatch, so this dtype is omitted in this PR.
cc nikitaved pearu cpuhrsch IvanYashchuk ezyang anjali411 dylanbespalko mruberry Lezcano
Pull Request resolved: https://github.com/pytorch/pytorch/pull/59980
Reviewed By: ngimel
Differential Revision: D30994115
Pulled By: cpuhrsch
fbshipit-source-id: 4f55b99e8e25079d6273b4edf95ad6fa85aeaf24
