Thanks! I tried to anisotropically refine and coarsen a
parallel::distributed triangulation and saw that it didn't work.



Subramanya.
सुब्रह्मण्य .


On Tue, Dec 3, 2024 at 8:31 AM Daniel Arndt <d.arndt.m...@gmail.com> wrote:

> Subramanya,
>
> the anisotropic refinement support is pretty limited and won't work
> with parallel::distributed::Triangulation. I would be surprised if it
> works with the geometric multigrid framework.
>
> Best,
> Daniel
>
> On Tue, Dec 3, 2024 at 8:19 AM subramanya gautam <subramany...@gmail.com>
> wrote:
> >
> > Hi,
> > I am trying to solve a laser-heating type problem over a rectangular
> plate. So that the x-y dimensions are much larger than the z dimension. At
> present I am using a modification of step-37 to solve it, but I don't need
> too much discretization in the z-direction. One of my thoughts was to use
> the anisotropic refinement (cut_xy) to only refine the elements in one
> direction and then solve it using multi-grid. However - the local-smoothing
> multigrid -does not allow this as it needs to limit_level_differences at
> the vertices.
> >
> > In  the step-75 example however, I don't see the
> limit_level_difference_at_vertices flag explicitly passed to the
> triangulation. Does that mean I could construct a set of triangulations
> using anisotropic refinement and use a multigrid method to solve it?
> >
> > Thanks,
> > Subramanya.
> >
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