topic Question on direct spars solver (DSS) in Intel® oneAPI Math Kernel Library

Question on direct spars solver (DSS)

Sören_Plönnigs — Wed, 11 Aug 2010 17:10:59 GMT

In the documentation I found out that the solver supports LU and LLT factorization. How can I switch between LU and LLT?

regards,

Soeren

Alexander_K_Intel2 — Wed, 11 Aug 2010 17:38:00 GMT

Hi Soeren,

If matrix you provide to PARDISO is symmetric positive define then PARDISO factorise it on LL^T, in other case on LDL^T or LU.

With best regards,

Alexander Kalinkin

Sören_Plönnigs — Wed, 11 Aug 2010 17:41:39 GMT

And the same applies to DSS?

Alexander_K_Intel2 — Wed, 11 Aug 2010 17:58:58 GMT

Yes, the same situation exist in DSS interface

With best regards,

Alexander Kalinkin

Sören_Plönnigs — Wed, 11 Aug 2010 18:07:05 GMT

Ok, thanks for the information! :)