another getdp problem

[Christophe Geuzaine]

Samuel Kvasnica wrote:
> 
> > Ow, 10000 iterations? I usually apply a preconditionner to converge with
> 
> well, it takes something like 15 minutes on my box.
> 
> > 100-200 its. So I think you should use a stronger preconditionner (i.e.
> > a better approximation of the inverse of the matrix). For example, you
> > can select (in the SOLVER.PAR file) an ILUTP preconditioner
> > (Preconditioner 2) allow more non-zero elements in the ILU (Nb_Fill
> > 100).
> 
> YES ! That's it. ILUTP preconditioner and ILU=32. Just 45 Iterations in few seconds, great !

Ah, that's better...

> I just wonder why that small change in geometry caused such big difference.
> 
> > > decided to use OpenDX, that's really great and free !
> > >
> >
> > Is it from IBM?
> 
> Yes, and since version 4.1.0 it has got quite stable. It is really very flexible. I hate that drag'n
> drop'n click
> editing but otherwise it is really cool.
> 

Where can I download a copy of this?

-- 
Christophe Geuzaine

Tel: +32-(0)4-366.37.10    mailto:Christophe.Geuzaine at ulg.ac.be
Fax: +32-(0)4-366.29.10    http://www.geuz.org