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   <div id="version" align=right><b>petsc-3.10.3 2018-12-18</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-3.10.3 v3.10.3 docs/manualpages/SNES/SNESCOMPOSITE.html "><small>Report Typos and Errors</small></a></div>
<A NAME="SNESCOMPOSITE"><H1>SNESCOMPOSITE</H1></A>
Build a preconditioner by composing together several nonlinear solvers 
<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_composite_type &lt;type: one of multiplicative, additive, symmetric_multiplicative, special&gt; </B></TD><TD>- Sets composite preconditioner type
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_composite_sneses </B></TD><TD>- &lt;snes0,snes1,...&gt; list of SNESes to compose
</TD></TR></TABLE>
<P>

<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
  <A HREF="../SNES/SNESCreate.html#SNESCreate">SNESCreate</A>(), <A HREF="../SNES/SNESSetType.html#SNESSetType">SNESSetType</A>(), <A HREF="../SNES/SNESType.html#SNESType">SNESType</A> (for list of available types), <A HREF="../SNES/SNES.html#SNES">SNES</A>,
<BR><A HREF="../SNES/SNESSHELL.html#SNESSHELL">SNESSHELL</A>, <A HREF="../SNES/SNESCompositeSetType.html#SNESCompositeSetType">SNESCompositeSetType</A>(), SNESCompositeSpecialSetAlpha(), <A HREF="../SNES/SNESCompositeAddSNES.html#SNESCompositeAddSNES">SNESCompositeAddSNES</A>(),
<A HREF="../SNES/SNESCompositeGetSNES.html#SNESCompositeGetSNES">SNESCompositeGetSNES</A>()
<P>
<H3><FONT COLOR="#CC3333">References</FONT></H3>
<DT><B>1. </B> -Peter R. Brune, Matthew G. Knepley, Barry F. Smith, and Xuemin Tu, "Composing Scalable Nonlinear Algebraic Solvers", 
SIAM Review, 57(4), 2015
<br>
<P>
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/snes/impls/composite/snescomposite.c.html#SNESCOMPOSITE">src/snes/impls/composite/snescomposite.c</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/snes/examples/tutorials/ex9.c.html">src/snes/examples/tutorials/ex9.c.html</A><BR>
<BR><A HREF="./index.html">Index of all SNES 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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