[Gmsh] GMSH questions

[idesbald van den bosch]

Well, can you try both GMSH 2.0.8 and 1.65 on the attached file containing
only flat surfaces?

For me:
1) GMSH 1.65, took 2 min 20 sec., 624 MB max mem
2) GMSH 2.0.8, took 16 min using MeshAdapt+Delauney, 147 MB max mem

so the speed is degraded by a factor of 8 (bad), but the memory is divided
by 4 (good).

On the other hand, is the daily release available? where?

Ides

On 7/18/07, Jean-Fran çois Remacle <remacle at gce.ucl.ac.be> wrote:
>
> idesbald van den bosch a écrit :
> > Hello dear GMSH users,
> >
> > I am a GMSH user since quite a while now, and I have a question
> > concerning the 2.0.x series. It seems that v2.0.X is much more
> > RAM-memory efficient than its v1.65 counterpart. Unfortunately it is
> > also much slower (~3 times from my limited experience).
> >
> The 2D mesh generator is slower, but I think it is more robust and
> enables to mesh general curved surfaces (NURBS ...).
> In the daily release, I have put back a classical isotropic delaunay
> that is much faster even than the v1.65 triangulator. Yet,
> it only works for planar surfaces for now, and for meshing the sphere
> (look at the attachement). When I'll find some time, I'll
> generalize this algo for general curved surfaces.
>
> Normally, the 3D algorithms are much faster and more robust that the
> ones of previous releases.
> > 1) does anyone have the same observation?
> > 2) is the slowness a necessary trade-off for memory efficiency?
> >
> No, it's just the algorithm.
>
> > Thanks
> >
> > Ides van den Bosch
> > Bilkent Computational Electromagnetics Lab
> > Bilkent, Ankara
> > Turkey
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > gmsh mailing list
> > gmsh at geuz.org
> > http://www.geuz.org/mailman/listinfo/gmsh
> >
>
>
> --
> --------------
> Prof. Jean-François Remacle
> Department of Civil Engineering and
> Center for Systems Engineering and Applied Mechanics
> Université catholique de Louvain, Belgium
> Tel : +32 10 472082
> Fax : +32 10 472210
>
>
>
>
>
>
>
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