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Re: [Question #117976]: Reuse LU factorization with PETSc?

To: dolfin@xxxxxxxxxxxxxxxxxxx
From: Garth Wells <question117976@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 16 Jul 2010 19:21:25 -0000
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Question #117976 on DOLFIN changed:
https://answers.launchpad.net/dolfin/+question/117976

Garth Wells proposed the following answer:

On 16/07/10 20:00, Nuno Lopes wrote:
> Question #117976 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/117976
>
> Nuno Lopes posted a new comment:
> humm...nope
> File output is commented out in the demo.
>
> uBLAS with factorization is much faster
> Can't notice any difference with PETSc backend.
>
> I'm looking to the cpp version of the demo and I'm using dolfin-dev
> revision 4844 (from yesterday).
>

Get the latest dolfin, and make sure that you have PETSc configured with 
UMFPACK.

Garth

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