petsc-3.3-p7 2013-05-11
DMDAGetScatter
Gets the local-to-global, local-to-global, and local-to-local vector scatter contexts for a distributed array.
Synopsis
#include "petscdmda.h"
PetscErrorCode DMDAGetScatter(DM da,VecScatter *ltog,VecScatter *gtol,VecScatter *ltol)
Collective on DMDA
Input Parameter
da -the distributed array
Output Parameters
| ltog | - local-to-global scatter context (may be PETSC_NULL)
|
| gtol | - global-to-local scatter context (may be PETSC_NULL)
|
| ltol | - local-to-local scatter context (may be PETSC_NULL)
|
Notes
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.
Keywords
distributed array, get, scatter, context, global-to-local,
local-to-global, local-to-local
See Also
DMGlobalToLocalBegin(), DMGlobalToLocalEnd(), DMLocalToGlobalBegin()
Level:developer
Location:src/dm/impls/da/dascatter.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages