PetscSFCreateSectionSF#

Create an expanded PetscSF of dofs, assuming the input PetscSF relates points

Synopsis#

#include "petscsf.h"   
PetscErrorCode PetscSFCreateSectionSF(PetscSF sf, PetscSection rootSection, PetscInt remoteOffsets[], PetscSection leafSection, PetscSF *sectionSF)

Collective

Input Parameters#

sf - The PetscSF
rootSection - Data layout of remote points for outgoing data (this is usually the serial section)
remoteOffsets - Offsets for point data on remote processes (these are offsets from the root section), or NULL
leafSection - Data layout of local points for incoming data (this is the distributed section)

Output Parameter#

sectionSF - The new PetscSF

Notes#

remoteOffsets can be NULL if sf does not reference any points in leafSection

Fortran Notes#

In Fortran, use PetscSFCreateSectionSFF90()

Level#

advanced

Location#

src/vec/is/sf/utils/sfutils.c

Examples#

src/dm/impls/plex/tutorials/ex14.c

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