[Trilinos-Users] Static condensation

[Jesse Chan]

I see; thanks all.  Just wanted to make sure I wasn't overlooking an
existing feature in implementing this myself.

On Mon, Aug 13, 2012 at 11:25 AM, Erik Boman <egboman at sandia.gov> wrote:

> Jesse,
>
> Just to expand on Mike's answer: The Amesos/MUMPS interface is scalable
> but we do not currently support the explicit computation of the Schur
> complement through MUMPS (or any other direct solver). You can compute the
> Schur complement yourself in Epetra (using the factored top left block from
> Amesos/MUMPS) but it will be a bit less efficient.
>
> Regards,
> Erik
>
> Heroux, Michael A wrote:
>
>> Jesse,
>>
>> I am unaware of a turnkey solution for this approach, although the pieces
>> are there to do the "heavy lifting" in a distributed memory environment, if
>> you take the time to learn Epetra's import/export functionality.  I don't
>> know about MUMPS' capabilities in this area.
>>
>> Mike
>>
>> From: Jesse Chan <jchan985 at gmail.com <mailto:jchan985 at gmail.com>>
>>
>> Date: Sunday, August 12, 2012 8:35 PM
>> To: "trilinos-users at software.**sandia.gov<trilinos-users at software.sandia.gov><mailto:
>> trilinos-users@**software.sandia.gov <trilinos-users at software.sandia.gov>>"
>> <trilinos-users at software.**sandia.gov<trilinos-users at software.sandia.gov><mailto:
>> trilinos-users@**software.sandia.gov <trilinos-users at software.sandia.gov>
>> >>
>>
>> Subject: [EXTERNAL] [Trilinos-Users] Static condensation
>>
>> Hi all
>> Is there an existing way in Trilinos to perform distributed static
>> condensation or compute Schur complements and modified RHS?  Is the Amesos
>> MUMPS routine scalable?
>> Thanks
>> - Jesse
>> ------------------------------**------------------------------**
>> ------------
>>
>>
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>
>
>
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