petsc-3.7.5 2017-01-01
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 Arguments
sf -star forest to invert
Output Arguments
isf -inverse of sf
Notes
All roots must have degree 1.
The local space may be a permutation, but cannot be sparse.
See Also
PetscSFSetGraph()
Level:advanced
Location:src/vec/is/sf/interface/sf.c
Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages
Examples
src/vec/is/sf/examples/tutorials/ex1.c.html