PetscSFComputeDegreeBegin

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

Synopsis

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

Collective

Input Parameter

• sf - star forest

Output Parameter

• degree - degree (the number of leaves) of each root vertex

Note

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

See Also

PetscSF - an alternative to low-level MPI calls for data communication, PetscSF, PetscSFGatherBegin(), PetscSFComputeDegreeEnd()

Level

advanced

Location

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

Examples

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

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