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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/TaoCreate.html "><small>Report Typos and Errors</small></a></div>
<A NAME="TaoCreate"><H1>TaoCreate</H1></A>
Creates a TAO solver
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petsctao.h"
PetscErrorCode TaoCreate(MPI_Comm comm, Tao *newtao)
</PRE>
Collective on <A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<DT><B>comm </B> -MPI communicator
<br>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>newtao </B> -the new <A HREF="../Tao/Tao.html#Tao">Tao</A> context
<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>lcl </B></TD><TD>- Linearly constrained Lagrangian method for pde-constrained minimization
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>pounders </B></TD><TD>- Model-based algorithm for nonlinear least squares
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<DT><B>-tao_type </B> -select which method TAO should use
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Tao/TaoSolve.html#TaoSolve">TaoSolve</A>(), <A HREF="../Tao/TaoDestroy.html#TaoDestroy">TaoDestroy</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/tao/interface/taosolver.c.html#TaoCreate">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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