DMStagGetLocationSlot#

get index to use in accessing raw local arrays

Synopsis#

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

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