petsc-3.13.6 2020-09-29
PetscSFComputeMultiRootOriginalNumbering
Returns original numbering of multi-roots (roots of multi-SF returned by PetscSFGetMultiSF()). Each multi-root is assigned index of the corresponding original root.
Synopsis
#include "petscsf.h"
PetscErrorCode PetscSFComputeMultiRootOriginalNumbering(PetscSF sf, const PetscInt degree[], PetscInt *nMultiRoots, PetscInt *multiRootsOrigNumbering[])
Collective
Input Arguments
Output Arguments
| nMultiRoots | - (optional) number of multi-roots (roots of multi-SF)
|
| multiRootsOrigNumbering | - original indices of multi-roots; length of this array is nMultiRoots
|
Notes
The returned array multiRootsOrigNumbering is newly allocated and should be destroyed with PetscFree() when no longer needed.
See Also
PetscSFComputeDegreeBegin(), PetscSFComputeDegreeEnd(), PetscSFGetMultiSF()
Level
developer
Location
src/vec/is/sf/interface/sf.c
Examples
src/vec/is/sf/tutorials/ex1.c.html
Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages