Doubts concerning matrix reorderings!

Lisandro Dalcin dalcinl at
Mon Mar 3 12:21:25 CST 2008

On 3/3/08, Rafael Santos Coelho <rafaelsantoscoelho at> wrote:
> I realize it's an easy problem and so matrix reorderings might not be too
> advantageous. But still, the main reason I want to pursue this it's because
> soon I'll be dealing with more complex nonlinear problems and when that time
> comes, I already plan to be familiarized with reorderings [:

OK, I see. Anyway, if you have the chance, I would recommend you to
take a look at SNES if going to nonlinear problems, and specially its
support for Eisenstand&Walker method for selecting the tolerance of
the inner Krylov solver. You have good chances of obtaining better
running times, even for moderately sized problems. Just a suggestion
for further investigation :) !

Lisandro Dalcín
Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC)
Instituto de Desarrollo Tecnológico para la Industria Química (INTEC)
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
PTLC - Güemes 3450, (3000) Santa Fe, Argentina
Tel/Fax: +54-(0)342-451.1594

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