petsc-dev 2014-08-28
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DMDAGetScatter

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

Synopsis

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

Input Parameter

da -the distributed array

Output Parameters

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