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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
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<A NAME="MatCompositeMerge"><H1>MatCompositeMerge</H1></A>
Given a composite matrix, replaces it with a "regular" matrix by summing all the matrices inside the composite matrix.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
PetscErrorCode MatCompositeMerge(Mat mat)
</PRE>
Collective on <A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<DT><B>mat </B> -the composite matrix
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">Options Database</FONT></H3>
<DT><B>-mat_composite_merge (you must call <A HREF="../Mat/MatAssemblyBegin.html#MatAssemblyBegin">MatAssemblyBegin</A>()/<A HREF="../Mat/MatAssemblyEnd.html#MatAssemblyEnd">MatAssemblyEnd</A>() to have this checked)</B> -
<br>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
The <A HREF="../Mat/MatType.html#MatType">MatType</A> of the resulting matrix will be the same as the <A HREF="../Mat/MatType.html#MatType">MatType</A> of the FIRST
matrix in the composite matrix.
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatDestroy.html#MatDestroy">MatDestroy</A>(), <A HREF="../Mat/MatMult.html#MatMult">MatMult</A>(), <A HREF="../Mat/MatCompositeAddMat.html#MatCompositeAddMat">MatCompositeAddMat</A>(), <A HREF="../Mat/MatCreateComposite.html#MatCreateComposite">MatCreateComposite</A>(), <A HREF="../Mat/MATCOMPOSITE.html#MATCOMPOSITE">MATCOMPOSITE</A>
<BR>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/impls/composite/mcomposite.c.html#MatCompositeMerge">src/mat/impls/composite/mcomposite.c</A>
<BR><A HREF="./index.html">Index of all Mat 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/mat/examples/tutorials/ex9.c.html">src/mat/examples/tutorials/ex9.c.html</A><BR>
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