petsc-3.12.5 2020-03-29

PetscSectionGetClosureInversePermutation

Get the inverse dof permutation for the closure of each cell in the section, meaning clPerm[oldIndex] = newIndex.

#include "petscsection.h"   
PetscErrorCode PetscSectionGetClosureInversePermutation(PetscSection section, PetscObject obj, IS *perm)

Not collective

	section	- The PetscSection
	obj	- A PetscObject which serves as the key for this index

	size	- The dof closure size
	perm	- The dof closure permutation

Note: This strategy only works when all cells have the same size dof closure, and no closures are retrieved for other points (like faces).

The user must destroy the IS that is returned.

intermediate