[Getdp] Solver parameters

Christophe Geuzaine geuzaine at acm.caltech.edu
Wed Oct 23 07:54:51 CEST 2002


Michael J. Rivard wrote:
> See my questions below.
> 
> On Tue, 2002-10-22 at 22:33, Christophe Geuzaine wrote:
> 
>>Michael J. Rivard wrote:
>>
>>>Hi,
>>>
>>>Can anyone point me to any references that can help me understand what
>>>all of the solver parameters mean? My current level of computational
>>>linear algebra is limited to LU factoring and singular value
>>>decomposition as explained in Numerical Recipes (ISBN 0-521-30811-9).
>>>
>>
>>A good reference is
>>
>>@book{saad-book-96,
>>   author =	 "Y. Saad",
>>   title =	 "Iterative Methods for Sparse Linear Systems",
>>   publisher =	 PWS,
>>   year =	 1996
>>}
>>
>>To use LU factoring, define "Matrix_Format 2" and "Algorithm 
>>11" in the solver parameters.
> 
> 
> And default values for all other parameters? 

Yep. Most other parameters control the iterative solvers. Check the 
comments at the beginning of the solver file.

 > Would the resulting algorithm be direct or iterative?

Direct.

Christophe

-- 
Christophe Geuzaine

Tel: (626) 395-4552    http://www.geuz.org
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