Question about spmv

[zhujj2008]

Hi,
I read the source code of spmv::CsrMV and found that many optimizations have been made. I am very curious whether the implementation in the cuSparse library also uses the same optimization method? Thanks。

[malmasri7]

Hi @zhujj2008
Overall, CUSPARSE uses a better load-balancing strategy and optimizations; thus, it should be faster than the CUB implementation. Moreover, cusparseSpMV will have a newer and improved CSR SpMV implementation in CUDA 12.1.

[zhujj2008]

Thanks @malmasri7 .
Is there any paper or blog published by Nvidia about the optimization strategy of cusparse csr spmv？