[petsc-dev] DMplex reader / viewers

[Jed Brown]

Blaise A Bourdin <bourdin at lsu.edu> writes:
> Did you write a whole new format? 

I wrote a new HDF5-based format and a VisIt plugin.

> How about simply extendinf xdmf to add higher order element and send
> patches supporting these extensions to visit / paraview?

This would be a nontrivial extension.  Existing XDMF maps directly to
VTK data structures, but VTK does not natively support high order, so
you have to decompose the high-order elements into low-order
sub-elements.

>> How important is it to support hanging nodes?  Is 2-1 refinement
>> sufficient?
> Can hanging nodes be handled through cell sets of various element types?

How so?  I'm thinking of, say, octree refinement.  How would you
describe that?
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