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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</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-3.7.5 v3.7.5 docs/manualpages/DM/DMCreateSubDM.html "><small>Report Typos and Errors</small></a></div>
<A NAME="DMCreateSubDM"><H1>DMCreateSubDM</H1></A>
Returns an <A HREF="../IS/IS.html#IS">IS</A> and <A HREF="../DM/DM.html#DM">DM</A> encapsulating a subproblem defined by the fields passed in. The fields are defined by <A HREF="../DM/DMCreateFieldIS.html#DMCreateFieldIS">DMCreateFieldIS</A>().
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscdm.h"
#include "petscdmlabel.h"
PetscErrorCode DMCreateSubDM(DM dm, PetscInt numFields, PetscInt fields[], IS *is, DM *subdm)
</PRE>
Not collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</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>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>numFields </B></TD><TD>- number of fields in this subproblem
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>len </B></TD><TD>- The number of subproblems in the decomposition (or NULL if not requested)
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<DT><B>is </B> -The global indices for the subproblem
<br>
<DT><B>dm </B> -The <A HREF="../DM/DM.html#DM">DM</A> for the subproblem
<br>
</TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../DM/DMDestroy.html#DMDestroy">DMDestroy</A>(), <A HREF="../DM/DMView.html#DMView">DMView</A>(), <A HREF="../DM/DMCreateInterpolation.html#DMCreateInterpolation">DMCreateInterpolation</A>(), <A HREF="../DM/DMCreateColoring.html#DMCreateColoring">DMCreateColoring</A>(), <A HREF="../DM/DMCreateMatrix.html#DMCreateMatrix">DMCreateMatrix</A>(), <A HREF="../DM/DMCreateFieldIS.html#DMCreateFieldIS">DMCreateFieldIS</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/dm/interface/dm.c.html#DMCreateSubDM">src/dm/interface/dm.c</A>
<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>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/snes/examples/tutorials/ex77.c.html">src/snes/examples/tutorials/ex77.c.html</A><BR>
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