topic 0-based CSR Format (3-Array Variation) with PARDISO in Intel® oneAPI Math Kernel Library

0-based CSR Format (3-Array Variation) with PARDISO

Daniel_Vlasic — Tue, 12 Oct 2010 15:29:04 GMT

Hi,

I'd like to be able to use 0-based sparse matrix format when solving sparse systems with PARDISO. MKL docummentation mentions that sparse routines work with either 0- or 1-based formats, but PARDISO interface says otherwise. Is this possible?

Thanks,

Daniel

0-based CSR Format (3-Array Variation) with PARDISO

Gennady_F_Intel — Tue, 12 Oct 2010 16:32:03 GMT

Daniel,

what do you mean by that?"PARDISO interface says otherwise".

set iparm[34] == 1

and use C-Ctyle indexing for ia and ja arrays.

--Gennady

0-based CSR Format (3-Array Variation) with PARDISO

Daniel_Vlasic — Thu, 14 Oct 2010 20:32:09 GMT

This is not mentioned in the documentation for my MKL (10.2.6.037).

From mklman.pdf page 2540: "Note that the row and columns numbers start from 1."

0-based CSR Format (3-Array Variation) with PARDISO

Gennady_F_Intel — Fri, 15 Oct 2010 04:28:19 GMT

Ok, I see. that's right. MKL's PARDISO started to supportzero-based (C-style) array indexing since 10.3.

You can participate 10.3 beta version program here.

You can find there the example "pardiso_sym_0_based.c" which shows how to call PARDISO with these arrays.

--Gennady