[petsc-users] [Posible SPAM] Re: DMPlex for high order elements

[Alejandro D Otero]

Ok, I'll think about it.
Thank you!

On Wed, Nov 18, 2015 at 4:29 PM, Jed Brown <jed at jedbrown.org> wrote:

> Alejandro D Otero <aotero at fi.uba.ar> writes:
>
> > Hi, I am trying to define a spectral element mesh in the frame of DMPlex
> > structure.
> > To begin with I am thinking of quadrilateral 2d elements. Lets say I
> have a
> > 16 node element with 2 nodes on each edge besides the 2 corners and 4
> nodes
> > inside the element. I'd like to treat all nodes as vertex in the DMPlex
> > structure.
>
> That's not the intended way to use DMPlex.  You associate an arbitrary
> number of dofs with each topological entity (vertex, edge, face, cell).
> So for your Q_3 elements in 2D, you would put 1 dof at vertices, 2 at
> edges, and 4 at cell interiors.
>
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