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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</b></div>
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<A NAME="MatPartitioningChacoSetEigenNumber"><H1>MatPartitioningChacoSetEigenNumber</H1></A>
Sets the number of eigenvectors to compute during partitioning.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../MatOrderings/MatPartitioningChacoSetEigenNumber.html#MatPartitioningChacoSetEigenNumber">MatPartitioningChacoSetEigenNumber</A>(<A HREF="../Mat/MatPartitioning.html#MatPartitioning">MatPartitioning</A> part,<A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> num)
</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>num </B></TD><TD>- the number of eigenvectors
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Options Database</FONT></H3>
<DT><B>-mat_partitioning_chaco_eigen_number <n>: Number of eigenvectors</B> -
Note:
Accepted values are 1, 2 or 3, indicating partitioning by bisection,
quadrisection, or octosection.
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../MatOrderings/MatPartitioningChacoSetEigenSolver.html#MatPartitioningChacoSetEigenSolver">MatPartitioningChacoSetEigenSolver</A>(), <A HREF="../MatOrderings/MatPartitioningChacoGetEigenTol.html#MatPartitioningChacoGetEigenTol">MatPartitioningChacoGetEigenTol</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>advanced<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/mat/partition/impls/chaco/chaco.c.html#MatPartitioningChacoSetEigenNumber">src/mat/partition/impls/chaco/chaco.c</A>
<P><H3><FONT COLOR="CC3333">Implementations</FONT></H3><A HREF="../../../src/mat/partition/impls/chaco/chaco.c.html#MatPartitioningChacoSetEigenNumber_Chaco">MatPartitioningChacoSetEigenNumber_Chaco in src/mat/partition/impls/chaco/chaco.c</A><BR>
<BR><A HREF="./index.html">Index of all MatOrderings routines</A>
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