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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</b></div>
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<A NAME="DMGetNeighbors"><H1>DMGetNeighbors</H1></A>
Gets an array containing the MPI rank of all the processes neighbors
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscdm.h"
#include "petscdmlabel.h"
#include "petscds.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../DM/DMGetNeighbors.html#DMGetNeighbors">DMGetNeighbors</A>(<A HREF="../DM/DM.html#DM">DM</A> dm,<A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> *nranks,const <A HREF="../Sys/PetscMPIInt.html#PetscMPIInt">PetscMPIInt</A> *ranks[])
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
. dm - The <A HREF="../DM/DM.html#DM">DM</A>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
. nranks - the number of neighbours
. ranks - the neighbors ranks
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
Do not free the array, it is freed when the <A HREF="../DM/DM.html#DM">DM</A> is destroyed.
<P>
<P>
.seealso: <A HREF="../DMDA/DMDAGetNeighbors.html#DMDAGetNeighbors">DMDAGetNeighbors</A>(), <A HREF="../PetscSF/PetscSFGetRanks.html#PetscSFGetRanks">PetscSFGetRanks</A>()
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>beginner<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/dm/interface/dm.c.html#DMGetNeighbors">src/dm/interface/dm.c</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/dm/examples/tutorials/swarm_ex3.c.html">src/dm/examples/tutorials/swarm_ex3.c.html</A><BR>
<P><H3><FONT COLOR="CC3333">Implementations</FONT></H3><A HREF="../../../src/dm/impls/da/dacreate.c.html#DMGetNeighbors_DA">DMGetNeighbors_DA in src/dm/impls/da/dacreate.c</A><BR>
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