[Trilinos-Users] AztecOO as smoother for ML from Stratimikos

[Heroux, Michael A]

There is an adapter in AztecOO called AztecOO_Operator.  It wraps and
AztecOO instance as an Epetra_Operator.  Might this be a good starting
point?

Mike


On 7/5/11 2:19 PM, "Chris Siefert" <csiefer at sandia.gov> wrote:

> Alberto,

ML has no problem with using AztecOO as a smoother.  However, there
> is 
no Stratimikos wrapper for this functionality.

-Chris

On 07/05/2011
> 01:15 PM, Bartlett, Roscoe A wrote:
> Alberto,
>
> This sounds like a more
> advanced use-case that would require more hooks into ML at the Stratimikos
> level and is very ML-specific.  Could you use to
> Stratimikos::DefaultLinearSolver builder objects and some of your own wrapper
> code to construct this?  Does ML already have built-in support to use AztecOO
> internally?  This might be more of question for the ML developers.
>
>
> -Ross
>
>> -----Original Message-----
>> From:
> trilinos-users-bounces at software.sandia.gov [mailto:trilinos-
>>
> users-bounces at software.sandia.gov] On Behalf Of Alberto F. Martín-
>>
> Huertas
>> Sent: Tuesday, July 05, 2011 2:31 AM
>> To:
> trilinos-users at software.sandia.gov
>> Subject: [Trilinos-Users] AztecOO as
> smoother for ML from Stratimikos
>>
>>   Dear all,
>>
>>   AztecOO solvers can
> be used as smoothers for
>>   the ML hierarchy. The AztecOO params and
> options
>>   arrays are passed to the MultilevelPreconditioner class
>>
> wrapped around RCP objects via the "smoother: Aztec options" and
>>
> "smoother: Aztec params"
>>   keys of a Teuchos::paramList.
>>
>>   I would
> like to know whether there exist any means
>>   from a XML file to be read by
> a Stratimikos
>>   driver to set the particular parameters for
>>   AztecOO
> solvers when they are used as smoothers
>>   for ML.
>>
>>   Thanks in
> advance.
>>
>>   Best regards,
>>    Alberto.
>>
>> --
>>   Alberto F.
> Martín-Huertas
>>   Centre Internacional de Mètodes Numèrics a l'Enginyeria
> (CIMNE)
>>   Parc Mediterrani de la Tecnologia, UPC
>>   Esteve Terrades 5,
> Building C3, Office 207,
>>   08860 Castelldefels (Barcelona, Spain)
>>
> e-mail: amartin at cimne.upc.edu
>>
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