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<TITLE>DMCreate</TITLE>
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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/DM/DMCreate.html "><small>Report Typos and Errors</small></a></div>
<A NAME="DMCreate"><H1>DMCreate</H1></A>
Creates an empty <A HREF="../DM/DM.html#DM">DM</A> object. The type can then be set with <A HREF="../DM/DMSetType.html#DMSetType">DMSetType</A>().
<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/DMCreate.html#DMCreate">DMCreate</A>(<A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A> comm,<A HREF="../DM/DM.html#DM">DM</A> *dm)
</PRE>
If you never call <A HREF="../DM/DMSetType.html#DMSetType">DMSetType</A>() it will generate an
error when you try to use the vector.
<P>
Collective
<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>comm </B></TD><TD>- The communicator for the <A HREF="../DM/DM.html#DM">DM</A> object
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dm </B></TD><TD>- The <A HREF="../DM/DM.html#DM">DM</A> object
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../DM/DMSetType.html#DMSetType">DMSetType</A>(), <A HREF="../DMDA/DMDA.html#DMDA">DMDA</A>, <A HREF="../DM/DMSLICED.html#DMSLICED">DMSLICED</A>, <A HREF="../DM/DMCOMPOSITE.html#DMCOMPOSITE">DMCOMPOSITE</A>, <A HREF="../DMPLEX/DMPLEX.html#DMPLEX">DMPLEX</A>, <A HREF="../DMMOAB/DMMOAB.html#DMMOAB">DMMOAB</A>, <A HREF="../DMNetwork/DMNETWORK.html#DMNETWORK">DMNETWORK</A>
<BR><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#DMCreate">src/dm/interface/dm.c</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/dm/impls/plex/tutorials/ex5.c.html">src/dm/impls/plex/tutorials/ex5.c.html</A><BR>
<A HREF="../../../src/dm/impls/forest/tutorials/ex1.c.html">src/dm/impls/forest/tutorials/ex1.c.html</A><BR>
<A HREF="../../../src/dm/tutorials/ex20.c.html">src/dm/tutorials/ex20.c.html</A><BR>
<A HREF="../../../src/dm/tutorials/swarm_ex1.c.html">src/dm/tutorials/swarm_ex1.c.html</A><BR>
<A HREF="../../../src/dm/tutorials/swarm_ex2.c.html">src/dm/tutorials/swarm_ex2.c.html</A><BR>
<A HREF="../../../src/dm/tutorials/swarm_ex3.c.html">src/dm/tutorials/swarm_ex3.c.html</A><BR>
<A HREF="../../../src/ksp/ksp/tutorials/ex70.c.html">src/ksp/ksp/tutorials/ex70.c.html</A><BR>
<A HREF="../../../src/ts/tutorials/ex11.c.html">src/ts/tutorials/ex11.c.html</A><BR>
<A HREF="../../../src/ts/utils/dmplexlandau/tutorials/ex2.c.html">src/ts/utils/dmplexlandau/tutorials/ex2.c.html</A><BR>
<P><H3><FONT COLOR="CC3333">Implementations</FONT></H3><A HREF="../../../src/dm/impls/composite/pack.c.html#DMCreate_Composite">DMCreate_Composite in src/dm/impls/composite/pack.c</A><BR>
<A HREF="../../../src/dm/impls/da/dacreate.c.html#DMCreate_DA">DMCreate_DA in src/dm/impls/da/dacreate.c</A><BR>
<A HREF="../../../src/dm/impls/forest/forest.c.html#DMCreate_Forest">DMCreate_Forest in src/dm/impls/forest/forest.c</A><BR>
<A HREF="../../../src/dm/impls/forest/p4est/pforest.c.html#DMCreate_pforest">DMCreate_pforest in src/dm/impls/forest/p4est/pforest.c</A><BR>
<A HREF="../../../src/dm/impls/moab/dmmoab.cxx.html#DMCreate_Moab">DMCreate_Moab in src/dm/impls/moab/dmmoab.cxx</A><BR>
<A HREF="../../../src/dm/impls/network/networkcreate.c.html#DMCreate_Network">DMCreate_Network in src/dm/impls/network/networkcreate.c</A><BR>
<A HREF="../../../src/dm/impls/patch/patchcreate.c.html#DMCreate_Patch">DMCreate_Patch in src/dm/impls/patch/patchcreate.c</A><BR>
<A HREF="../../../src/dm/impls/plex/plexcreate.c.html#DMCreate_Plex">DMCreate_Plex in src/dm/impls/plex/plexcreate.c</A><BR>
<A HREF="../../../src/dm/impls/product/product.c.html#DMCreate_Product">DMCreate_Product in src/dm/impls/product/product.c</A><BR>
<A HREF="../../../src/dm/impls/redundant/dmredundant.c.html#DMCreate_Redundant">DMCreate_Redundant in src/dm/impls/redundant/dmredundant.c</A><BR>
<A HREF="../../../src/dm/impls/shell/dmshell.c.html#DMCreate_Shell">DMCreate_Shell in src/dm/impls/shell/dmshell.c</A><BR>
<A HREF="../../../src/dm/impls/sliced/sliced.c.html#DMCreate_Sliced">DMCreate_Sliced in src/dm/impls/sliced/sliced.c</A><BR>
<A HREF="../../../src/dm/impls/stag/stag.c.html#DMCreate_Stag">DMCreate_Stag in src/dm/impls/stag/stag.c</A><BR>
<A HREF="../../../src/dm/impls/swarm/swarm.c.html#DMCreate_Swarm">DMCreate_Swarm in src/dm/impls/swarm/swarm.c</A><BR>
<BR><A HREF="./index.html">Index of all DM routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
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