petsc-3.14.5 2021-03-03
Report Typos and Errors

# PetscSFComputeDegreeBegin

begin computation of degree for each root vertex, to be completed with PetscSFComputeDegreeEnd()

### Synopsis

    #include "petscsf.h"
    PetscErrorCode PetscSFComputeDegreeBegin(PetscSF sf,const PetscInt **degree)

Collective

### Input Arguments

| sf | - star forest

### Output Arguments

| degree | - degree of each root vertex

### Notes

The returned array is owned by PetscSF and automatically freed by PetscSFDestroy(). Hence no need to call PetscFree() on it.

### See Also

PetscSFGatherBegin()

### Level

advanced

### 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