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   <div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="MatPartitioningChacoSetEigenSolver"><H1>MatPartitioningChacoSetEigenSolver</H1></A>
Set eigensolver method for Chaco partitioner. 
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h" 
PetscErrorCode MatPartitioningChacoSetEigenSolver(MatPartitioning part,MPChacoEigenType method)
</PRE>
Collective on <A HREF="../Mat/MatPartitioning.html#MatPartitioning">MatPartitioning</A>
<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>part </B></TD><TD>- the partitioning context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>method </B></TD><TD>- one of MP_CHACO_LANCZOS or MP_CHACO_RQI
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Options Database</FONT></H3>
<DT><B>-mat_partitioning_chaco_eigen_solver &lt;method&gt; </B> -the eigensolver
<br>
<P>

<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
The default is to use a Lanczos method. See Chaco documentation for details.
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
 <A HREF="../MatOrderings/MatPartitioningChacoSetEigenTol.html#MatPartitioningChacoSetEigenTol">MatPartitioningChacoSetEigenTol</A>(),<A HREF="../MatOrderings/MatPartitioningChacoSetEigenNumber.html#MatPartitioningChacoSetEigenNumber">MatPartitioningChacoSetEigenNumber</A>(),
<BR><A HREF="../MatOrderings/MatPartitioningChacoGetEigenSolver.html#MatPartitioningChacoGetEigenSolver">MatPartitioningChacoGetEigenSolver</A>()
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/partition/impls/chaco/chaco.c.html#MatPartitioningChacoSetEigenSolver">src/mat/partition/impls/chaco/chaco.c</A>
<BR><A HREF="./index.html">Index of all MatOrderings routines</A>
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