topic mkl_sparse_qr_reorder, how to get permutation and rank in Intel® oneAPI Math Kernel Library

mkl_sparse_qr_reorder, how to get permutation and rank

dyollb — Tue, 30 Nov 2021 22:29:37 GMT

I would like to use the Sparse QR solver from MKL.

Is there any way I can get the permutation from the pivot reordering (mkl_sparse_qr_reorder) step?

Also, is there any api to get the rank?

Thanks

Bryn

Re: mkl_sparse_qr_reorder, how to get permutation and rank

Kirill_V_Intel — Tue, 30 Nov 2021 22:45:42 GMT

Hi Bryn!

Currently we don't have an API for returning either permutation or rank. If this feature is important for you, I suggest submitting a feature request.

Let us know if you need directions how to do that (and some more appropriate person than me will help you with that).

Best,
Kirill

Re: mkl_sparse_qr_reorder, how to get permutation and rank

ShanmukhS_Intel — Wed, 22 Dec 2021 10:50:34 GMT

Hi,

Reminder:

Has the information provided helped? Kindly let us know if you need any help.

Best Regards,

Shanmukh.SS

Re: mkl_sparse_qr_reorder, how to get permutation and rank

dyollb — Tue, 07 Dec 2021 08:40:25 GMT

Thanks for the information. I was thinking of adding a wrapper for the MKL Sparse QR to the Eigen library.

However, to make it support the same features as the native QR solver, and the SuiteSparse QR solver, access to the permutation and rank would be required.

If you can send me instructions how to request this feature that would be great.

Thanks

Re:mkl_sparse_qr_reorder, how to get permutation and rank

ShanmukhS_Intel — Tue, 14 Dec 2021 10:26:58 GMT

Hi,

Could you please let us know if you are a priority customer, so that we could guide you the steps in raising a Feature request.

Best Regards,

Shanmukh.SS

Re:mkl_sparse_qr_reorder, how to get permutation and rank

ShanmukhS_Intel — Wed, 22 Dec 2021 06:05:25 GMT

Hi,

Reminder:

Could you please let us know if you are a priority customer, so that we could guide you the steps in raising a Feature request.

Best Regards,

Shanmukh.SS

Re: Re:mkl_sparse_qr_reorder, how to get permutation and rank

dyollb — Wed, 22 Dec 2021 06:16:08 GMT

no, I am not.

Re:mkl_sparse_qr_reorder, how to get permutation and rank

ShanmukhS_Intel — Wed, 29 Dec 2021 11:56:35 GMT

Hi,

Thank you for suggesting the feature. A similar request has already been reported to the developers. They are working on it.

We are closing this thread for now. Kindly raise a new thread if you need any help, as this thread will no longer be monitored by Intel.

Best Regards,

Shanmukh.SS