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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/Tao/TaoSetConvergenceTest.html "><small>Report Typos and Errors</small></a></div>
<A NAME="TaoSetConvergenceTest"><H1>TaoSetConvergenceTest</H1></A>
Sets the function that is to be used to test for convergence o fthe iterative minimization solution. The new convergence testing routine will replace TAO's default convergence test.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petsctao.h"
PetscErrorCode TaoSetConvergenceTest(Tao tao, PetscErrorCode (*conv)(Tao,void*), void *ctx)
</PRE>
Logically Collective on <A HREF="../Tao/Tao.html#Tao">Tao</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>tao </B></TD><TD>- the <A HREF="../Tao/Tao.html#Tao">Tao</A> object
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>conv </B></TD><TD>- the routine to test for convergence
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD>- [optional] context for private data for the convergence routine
(may be NULL)
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Calling sequence of conv</FONT></H3>
<pre>
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> conv(<A HREF="../Tao/Tao.html#Tao">Tao</A> tao, void *ctx)
</pre>
<P>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>tao </B></TD><TD>- the <A HREF="../Tao/Tao.html#Tao">Tao</A> object
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD>- [optional] convergence context
</TD></TR></TABLE>
<P>
Note: The new convergence testing routine should call <A HREF="../Tao/TaoSetConvergedReason.html#TaoSetConvergedReason">TaoSetConvergedReason</A>().
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Tao/TaoSetConvergedReason.html#TaoSetConvergedReason">TaoSetConvergedReason</A>(), <A HREF="../Tao/TaoGetSolutionStatus.html#TaoGetSolutionStatus">TaoGetSolutionStatus</A>(), <A HREF="../Tao/TaoGetTolerances.html#TaoGetTolerances">TaoGetTolerances</A>(), <A HREF="../Tao/TaoSetMonitor.html#TaoSetMonitor">TaoSetMonitor</A>
<BR>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/tao/interface/taosolver.c.html#TaoSetConvergenceTest">src/tao/interface/taosolver.c</A>
<BR><A HREF="./index.html">Index of all Tao 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/tao/unconstrained/examples/tutorials/eptorsion2f.F.html">src/tao/unconstrained/examples/tutorials/eptorsion2f.F.html</A><BR>
<A HREF="../../../src/tao/bound/examples/tutorials/jbearing2.c.html">src/tao/bound/examples/tutorials/jbearing2.c.html</A><BR>
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