[dune-fem] Lumping Quadrature for Lagrange

[Claus-Justus Heine]

Hi Andrea,

actually, cloning the code from Dune::Fem was harder than expected, but 
I have a first draft implementation which at least compiles; modelled 
after the CachingQuadrature. Still have to test that.

Thanks for your message; if it shows that the lumping quadrature 
actually work I can move it some branch in the git repo.

Best,

Claus

Am 26.06.13 18:26, schrieb Sacconi, Andrea:
> Hi Claus,
>
> I think it hasn't been implemented yet. I have been using this
> quadrature rule in my code for a while, implementing it myself. But
> if you discover its existence, let me know :-)
>
> Cheers, Andrea
> __________________________________________________________
>
> Andrea Sacconi PhD student, Applied Mathematics AMMP Section,
> Department of Mathematics, Imperial College London, London SW7 2AZ,
> UK a.sacconi11 at imperial.ac.uk
>
> ________________________________________ From:
> dune-fem-bounces+a.sacconi11=imperial.ac.uk at dune-project.org
> [dune-fem-bounces+a.sacconi11=imperial.ac.uk at dune-project.org] on
> behalf of Claus-Justus Heine
> [Claus-Justus.Heine at IANS.Uni-Stuttgart.DE] Sent: 26 June 2013 17:23
> To: dune-fem at dune-project.org Subject: [dune-fem] Lumping Quadrature
> for Lagrange
>
> Hi,
>
> another question: is there already a "lumping" quadrature for
> Lagrange elements on simplex grids, i.e. a quad rule with weight
> 1/dim and integration points at the vertices of a simplex? Its
> extremely simple to implement, copying the code from
> dune/fem/quadrature/ but if it is already there ... and yes, there
> are much more efficient ways to implement mass-lumping, but ...
>
> Best,
>
> Claus
>
> -- Dr. Claus-Justus Heine Institut für Angewandte Analysis und
> Simulation * Numerische Mathematik für Höchstleistungsrechner
> Universität Stuttgart
>
> Fon: +49 (0) 711 - 685 65558 Fax: +49 (0) 711 - 685 65507
>
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-- 
Dr. Claus-Justus Heine
Institut für Angewandte Analysis und Simulation
* Numerische Mathematik für Höchstleistungsrechner
Universität Stuttgart

Fon: +49 (0) 711 - 685 65558
Fax: +49 (0) 711 - 685 65507