Finite Elements (PetscFE)#
PetscFE class encapsulates a finite element discretization. Each
PetscFE object contains a
PetscSpace, its dual
PetscDualSpace, and a
in the classic Ciarlet triple representation (https://finite-element.github.io/2_finite_elements.html).
- Achieving High Performance with Unified Residual Evaluation, Matthew G. Knepley, Jed Brown, Karl Rupp, Barry F. Smith, 2013.
- Finite Element Integration with Quadrature on the GPU, Matthew G. Knepley, Karl Rupp, Andy R. Terrel, 2016.
There are many SNES Examples using
PetscFE, such ex12, ex17, and ex62.
Using an entire
DMPLEX object to provide the cell information seems unnecessary and complicated. Why not have a simple
PetscCell object that could encapsulate this information. It could then be used by a variety of