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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.14.5 v3.14.5 docs/manualpages/DMDA/DMDAGetAO.html "><small>Report Typos and Errors</small></a></div>
<A NAME="DMDAGetAO"><H1>DMDAGetAO</H1></A>
Gets the application ordering context for a distributed array.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscdmda.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../DMDA/DMDAGetAO.html#DMDAGetAO">DMDAGetAO</A>(<A HREF="../DM/DM.html#DM">DM</A> da,<A HREF="../AO/AO.html#AO">AO</A> *ao)
</PRE>
Collective on da
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>da </B></TD><TD>- the distributed array
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ao </B></TD><TD>- the application ordering context for DMDAs
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
In this case, the <A HREF="../AO/AO.html#AO">AO</A> maps to the natural grid ordering that would be used
for the <A HREF="../DMDA/DMDA.html#DMDA">DMDA</A> 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.)
<P>
Do NOT call <A HREF="../AO/AODestroy.html#AODestroy">AODestroy</A>() on the ao returned by this function.
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../DMDA/DMDACreate2d.html#DMDACreate2d">DMDACreate2d</A>(), <A HREF="../DMDA/DMDASetAOType.html#DMDASetAOType">DMDASetAOType</A>(), <A HREF="../DMDA/DMDAGetGhostCorners.html#DMDAGetGhostCorners">DMDAGetGhostCorners</A>(), <A HREF="../DMDA/DMDAGetCorners.html#DMDAGetCorners">DMDAGetCorners</A>(), <A HREF="../DM/DMLocalToGlobal.html#DMLocalToGlobal">DMLocalToGlobal</A>()
<BR><A HREF="../DM/DMGlobalToLocalBegin.html#DMGlobalToLocalBegin">DMGlobalToLocalBegin</A>(), <A HREF="../DM/DMGlobalToLocalEnd.html#DMGlobalToLocalEnd">DMGlobalToLocalEnd</A>(), <A HREF="../DM/DMLocalToLocalBegin.html#DMLocalToLocalBegin">DMLocalToLocalBegin</A>(), <A HREF="../DM/DMLocalToLocalEnd.html#DMLocalToLocalEnd">DMLocalToLocalEnd</A>(), <A HREF="../DMDA/DMDAGetOwnershipRanges.html#DMDAGetOwnershipRanges">DMDAGetOwnershipRanges</A>(),
<A HREF="../AO/AO.html#AO">AO</A>, <A HREF="../AO/AOPetscToApplication.html#AOPetscToApplication">AOPetscToApplication</A>(), <A HREF="../AO/AOApplicationToPetsc.html#AOApplicationToPetsc">AOApplicationToPetsc</A>()
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/dm/impls/da/daindex.c.html#DMDAGetAO">src/dm/impls/da/daindex.c</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/dm/tutorials/ex6.c.html">src/dm/tutorials/ex6.c.html</A><BR>
<A HREF="../../../src/ksp/ksp/tutorials/ex59.c.html">src/ksp/ksp/tutorials/ex59.c.html</A><BR>
<BR><A HREF="./index.html">Index of all DMDA routines</A>
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