petsc-3.14.6 2021-03-30
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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, DMStagVecGetArray(), DMStagVecGetArrayRead(), DMStagGetDOF(), DMStagGetEntriesPerElement()

Level

beginner

Location

src/dm/impls/stag/stagutils.c

Examples

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

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