DMDAGetScatter#

Gets the global-to-local, and local-to-local vector scatter contexts for a DMDA distributed array.

Synopsis#

#include "petscdmda.h"   
PetscErrorCode DMDAGetScatter(DM da, VecScatter *gtol, VecScatter *ltol)

Collective

Input Parameter#

Output Parameters#

  • gtol - global-to-local scatter context (may be NULL)

  • ltol - local-to-local scatter context (may be NULL)

Note#

The output contexts are valid only as long as the input da is valid. If you delete the da, the scatter contexts will become invalid.

See Also#

DMDA - Creating vectors for structured grids, DM, DMDA, DMGlobalToLocalBegin(), DMGlobalToLocalEnd(), DMLocalToGlobalBegin()

Level#

developer

Location#

src/dm/impls/da/dascatter.c

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