petsc-3.6.1 2015-08-06

DMPlexGetOrdering

Calculate a reordering of the mesh

#include "petscdmplex.h"   
#include "petscmat.h"      
PetscErrorCode DMPlexGetOrdering(DM dm, MatOrderingType otype, IS *perm)

Collective on DM

	dm	- The DMPlex object
	otype	- type of reordering, one of the following:

    MATORDERINGNATURAL - Natural

    MATORDERINGND - Nested Dissection

    MATORDERING1WD - One-way Dissection

    MATORDERINGRCM - Reverse Cuthill-McKee

    MATORDERINGQMD - Quotient Minimum Degree

perm -The point permutation as an IS

mesh