Unstructured Grids and Cell Complexes (DMPlex)#

The DMPLEX class encapsulates an unstructured mesh, with interfaces for both topology and geometry. It is capable of parallel refinement and coarsening (using Pragmatic or ParMmg) and parallel redistribution for load balancing. It is designed to interface with the PetscFE and PetscFV trial discretization objects.

Mesh Algorithms for PDE with Sieve I: Mesh Distribution, Matthew G. Knepley and Dmitry A. Karpeev, Scientific Programming, 17(3), 215-230, 2009.
Efficient mesh management in Firedrake using PETSc-DMPlex, Michael Lange, Lawrence Mitchell, Matthew G. Knepley and Gerard J. Gorman, SISC, 38(5), S143-S155, 2016.
Unstructured Overlapping Mesh Distribution in Parallel, Matthew G. Knepley, Michael Lange, Gerard J. Gorman, 2015.

[Manual Pages Table of Contents](/manualpages/index.md)

Manual Pages by Level#

Beginner - Basic usage#

Intermediate - Setting options for algorithms and data structures#

Advanced - Setting more advanced options and customization#

Developer - Interfaces intended primarily for library developers, not for typical applications programmers#

No deprecated routines#

Single list of manual pages#