petsc-master 2019-08-22
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DMDAGetAO

Gets the application ordering context for a distributed array.

Synopsis

#include "petscdmda.h"   
PetscErrorCode  DMDAGetAO(DM da,AO *ao)
Collective on da

Input Parameter

da -the distributed array

Output Parameters

ao -the application ordering context for DMDAs

Notes

In this case, the AO maps to the natural grid ordering that would be used for the DMDA if only 1 processor were employed (ordering most rapidly in the x-direction, then y, then z). Multiple degrees of freedom are numbered for each node (rather than 1 component for the whole grid, then the next component, etc.)

Do NOT call AODestroy() on the ao returned by this function.

See Also

DMDACreate2d(), DMDASetAOType(), DMDAGetGhostCorners(), DMDAGetCorners(), DMDALocalToGlocal()
DMGlobalToLocalBegin(), DMGlobalToLocalEnd(), DMLocalToLocalBegin(), DMLocalToLocalEnd(), DMDAGetOwnershipRanges(), AO, AOPetscToApplication(), AOApplicationToPetsc()

Level

intermediate

Location

src/dm/impls/da/daindex.c

Examples

src/dm/examples/tutorials/ex6.c.html
src/ksp/ksp/examples/tutorials/ex59.c.html

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