DMStagGetLocationSlot

get index to use in accessing raw local arrays

Synopsis

#include "petscdmstag.h"   
#include "petscdmproduct.h"   
PetscErrorCode DMStagGetLocationSlot(DM dm, DMStagStencilLocation loc, PetscInt c, PetscInt *slot)

Not Collective

Input Parameters

• dm - the DMSTAG object

• loc - location relative to an element

• c - component

Output Parameter

• slot - index to use

Notes

Provides an appropriate index to use with DMStagVecGetArray() and friends. This is required so that the user doesn’t need to know about the ordering of dof associated with each local element.

See Also

DMSTAG: Staggered, Structured Grid, DMSTAG, DMStagVecGetArray(), DMStagVecGetArrayRead(), DMStagGetDOF(), DMStagGetEntriesPerElement()

Level

beginner

Location

src/dm/impls/stag/stagutils.c

Examples

src/dm/impls/stag/tutorials/ex2.c
src/dm/impls/stag/tutorials/ex1.c
src/dm/impls/stag/tutorials/ex3.c
src/dm/impls/stag/tutorials/ex6.c
src/dm/impls/stag/tutorials/ex4.c

---

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