topic hi Robert, in Intel® oneAPI Math Kernel Library

mkl_sparse_?_svd implementation

Robert_E_ — Sat, 25 Jan 2020 14:46:19 GMT

Hello,

is mkl_sparse_?_svd yet implemented and supposed to work?

source:

https://software.intel.com/en-us/onemkl-developer-reference-fortran-mkl-sparse-svd

Because after trying several things I get error 6, SPARSE_STATUS_NOT_SUPPORTED every time.
I'll give you a MWE when it's implemented.

hi Robert,

Gennady_F_Intel — Sun, 26 Jan 2020 03:08:14 GMT

hi Robert,

Yes, it should work. You could check the latest version v.2020 or give us the reproducer to check the problem on our side.

Hi,

Robert_E_ — Mon, 27 Jan 2020 00:38:38 GMT

Hi,

thank you!

I tried more things and it works. The problem was that my matrix was in CSC format. The documentation does not state that only CSR format is supported, or maybe I'm blind.

If you want sugesstions on improving the documentation, read on, else I'm done here. Thanks for the great work and support!

errors in documentation:

The interface should be

stat = mkl_sparse_d_svd (whichS, whichV, pm, A, descrA, k0, k, E, XL, XR, res);

instead of

stat = mkl_sparse_d_svd (whichS, whichV, pm, A, descrA, k0, k, E, X, res);

I think the term "eigenvalues" should be replaced with the term "singular values" everywhere.

Thanks, Robert for these

Gennady_F_Intel — Mon, 27 Jan 2020 04:25:18 GMT

Thanks, Robert for these issues. We will fix all of these topics.

Re: Thanks, Robert for these

Gennady_F_Intel — Thu, 25 Jun 2020 15:29:30 GMT

The error into documentation has been fixed into version 2020 u1 which already released and available.