topic Re: Cholecky decomposition with PARDISO in Intel® oneAPI Math Kernel Library

Cholecky decomposition with PARDISO

leonid_i — Thu, 30 Oct 2008 14:36:03 GMT

Hi, everyone,

I have recently run accross a problem, which requires manipulations with large sparse matrices, in particular, it is desired to efficiently compute Cholesky decomposition of a symmetric matrix of the order >=30000. I checked that PARDISO can factorize such matrix relatively fast (at phase 22), but how do I exctract the factored matrix without actually solving the associated system of equations?

Thanks,

Leonid.

Re: Cholecky decomposition with PARDISO

Gennady_F_Intel — Fri, 31 Oct 2008 12:43:09 GMT

Leonid, there is no such opportunity for the current version of PARDSIO.

--Gennady

Re: Cholecky decomposition with PARDISO

oliver_buss — Tue, 23 Feb 2010 08:00:22 GMT

Hello together!

I am also interested in extracting the Cholesky Factorization from PARDISO. Are there any news? Is it now possible to extract it??

Greetings, Oliver

Re: Cholecky decomposition with PARDISO

Gennady_F_Intel — Tue, 23 Feb 2010 17:52:29 GMT

No, PARDISO does not provide such an opportunity