petsc-3.7.1 2016-05-15
DMDANaturalToGlobalBegin
Maps values from a global vector in the "natural" ordering to a global vector in the PETSc DMDA grid ordering. Must be followed by DMDANaturalToGlobalEnd() to complete the exchange.
Synopsis
#include "petscdmda.h"
PetscErrorCode DMDANaturalToGlobalBegin(DM da,Vec g,InsertMode mode,Vec l)
Neighbor-wise Collective on DMDA Many br
Input Parameters
| da | - the distributed array context Many br |
| g | - the global vector in a natural ordering Many br |
| mode | - one of INSERT_VALUES or ADD_VALUES Many br |
Output Parameter
l -the values in the DMDA ordering Many br
Many br
Notes
The global and natural vectors used here need not be the same as those Many brobtained from DMCreateGlobalVector() and DMDACreateNaturalVector(), BUT they Many brmust have the same parallel data layout; they could, for example, be Many brobtained with VecDuplicate() from the DMDA originating vectors. Many br
Keywords
distributed array, global to local, begin
See Also
DMDAGlobalToNaturalEnd(), DMDAGlobalToNaturalBegin(), DMLocalToGlobalBegin(), DMDACreate2d(),
DMGlobalToLocalBegin(), DMGlobalToLocalEnd(), DMDACreateNaturalVector() Many br
Level:advanced
Location:src/dm/impls/da/dagtol.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages