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SpMV multithreaded?

marchesini__stefano
Beginner
‎09-18-2019 08:38 AM
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is the sparse matrix vector multiply multithreaded? 

Maybe I am doing something wrong, but I installed intel-python, intel-scipy and could not get multithreading for the SpMV (sparse matrix vector multiply) with sparse matrix in csr format, is it supported? I thought mkl had support for multithreading SpMV, is it just lacking python bindings?

Thanks!

 

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Oleksandr_P_Intel
Employee
‎09-20-2019 07:08 AM
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No, CSR's matvec is sequential. sparse.mvecs uses BLAS axpy, and is threaded across collection of vectors.

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