DMDAGetAO#

Gets the application ordering context for a distributed array.

Synopsis#

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

Collective

Input Parameter#

  • da - the distributed array

Output Parameter#

  • ao - the application ordering context for DMDA

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#

DM, DMDA, DMDACreate2d(), DMDASetAOType(), DMDAGetGhostCorners(), DMDAGetCorners(), DMLocalToGlobal() DMGlobalToLocalBegin(), DMGlobalToLocalEnd(), DMLocalToLocalBegin(), DMLocalToLocalEnd(), DMDAGetOwnershipRanges(), AO, AOPetscToApplication(), AOApplicationToPetsc()

Level#

intermediate

Location#

src/dm/impls/da/daindex.c

Examples#

src/dm/tutorials/ex22.c
src/dm/tutorials/ex6.c
src/ksp/ksp/tutorials/ex59.c


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Index of all DMDA routines
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Index of all manual pages