PetscSFCreateInverseSF#

given a PetscSF in which all vertices have degree 1, creates the inverse map

Synopsis#

#include "petscsf.h" 
PetscErrorCode PetscSFCreateInverseSF(PetscSF sf, PetscSF *isf)

Collective

Input Parameter#

sf - star forest to invert

Output Parameter#

isf - inverse of sf

Notes#

All roots must have degree 1.

The local space may be a permutation, but cannot be sparse.

See Also#

PetscSF, PetscSFType, PetscSFSetGraph()

Level#

advanced

Location#

src/vec/is/sf/interface/sf.c

Examples#

src/vec/is/sf/tutorials/ex1.c

Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages