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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/TaoSetType.html "><small>Report Typos and Errors</small></a></div>
<A NAME="TaoSetType"><H1>TaoSetType</H1></A>
Sets the method for the unconstrained minimization solver.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petsctao.h"
PetscErrorCode TaoSetType(Tao tao, const TaoType type)
</PRE>
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>solver </B></TD><TD>- the <A HREF="../Tao/Tao.html#Tao">Tao</A> solver context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>type </B></TD><TD>- a known method
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Options Database Key</FONT></H3>
<DT><B>-tao_type <type> </B> -Sets the method; use -help for a list
of available methods (for instance, "-tao_type lmvm" or "-tao_type tron")
<br>
<P>
<H3><FONT COLOR="#CC3333">Available methods include</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nls </B></TD><TD>- Newton's method with line search for unconstrained minimization
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ntr </B></TD><TD>- Newton's method with trust region for unconstrained minimization
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ntl </B></TD><TD>- Newton's method with trust region, line search for unconstrained minimization
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>lmvm </B></TD><TD>- Limited memory variable metric method for unconstrained minimization
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>cg </B></TD><TD>- Nonlinear conjugate gradient method for unconstrained minimization
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nm </B></TD><TD>- Nelder-Mead algorithm for derivate-free unconstrained minimization
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>tron </B></TD><TD>- Newton Trust Region method for bound constrained minimization
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>gpcg </B></TD><TD>- Newton Trust Region method for quadratic bound constrained minimization
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>blmvm </B></TD><TD>- Limited memory variable metric method for bound constrained minimization
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>pounders </B></TD><TD>- Model-based algorithm pounder extended for nonlinear least squares
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Tao/TaoCreate.html#TaoCreate">TaoCreate</A>(), <A HREF="../Tao/TaoGetType.html#TaoGetType">TaoGetType</A>(), <A HREF="../Tao/TaoType.html#TaoType">TaoType</A>
<BR>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/tao/interface/taosolver.c.html#TaoSetType">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/ts/examples/tutorials/ex16opt_p.c.html">src/ts/examples/tutorials/ex16opt_p.c.html</A><BR>
<A HREF="../../../src/ts/examples/tutorials/ex16opt_ic.c.html">src/ts/examples/tutorials/ex16opt_ic.c.html</A><BR>
<A HREF="../../../src/ts/examples/tutorials/ex20opt_p.c.html">src/ts/examples/tutorials/ex20opt_p.c.html</A><BR>
<A HREF="../../../src/ts/examples/tutorials/ex20opt_ic.c.html">src/ts/examples/tutorials/ex20opt_ic.c.html</A><BR>
<A HREF="../../../src/tao/unconstrained/examples/tutorials/eptorsion1.c.html">src/tao/unconstrained/examples/tutorials/eptorsion1.c.html</A><BR>
<A HREF="../../../src/tao/unconstrained/examples/tutorials/eptorsion2.c.html">src/tao/unconstrained/examples/tutorials/eptorsion2.c.html</A><BR>
<A HREF="../../../src/tao/unconstrained/examples/tutorials/minsurf2.c.html">src/tao/unconstrained/examples/tutorials/minsurf2.c.html</A><BR>
<A HREF="../../../src/tao/unconstrained/examples/tutorials/rosenbrock1.c.html">src/tao/unconstrained/examples/tutorials/rosenbrock1.c.html</A><BR>
<A HREF="../../../src/tao/unconstrained/examples/tutorials/eptorsion2f.F.html">src/tao/unconstrained/examples/tutorials/eptorsion2f.F.html</A><BR>
<A HREF="../../../src/tao/unconstrained/examples/tutorials/rosenbrock1f.F.html">src/tao/unconstrained/examples/tutorials/rosenbrock1f.F.html</A><BR>
<A HREF="../../../src/tao/constrained/examples/tutorials/maros.c.html">src/tao/constrained/examples/tutorials/maros.c.html</A><BR>
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