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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="SNESAnderson"><H1>SNESAnderson</H1></A>
Anderson Mixing method.
<P>
<H3><FONT COLOR="#CC3333">Options Database</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_anderson_m </B></TD><TD>- Number of stored previous solutions and residuals
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_anderson_beta </B></TD><TD>- Relaxation parameter; X_{update} = X + \beta F
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_anderson_restart_type </B></TD><TD>- Type of restart (see <A HREF="../SNES/SNESNGMRES.html#SNESNGMRES">SNESNGMRES</A>)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_anderson_restart_it </B></TD><TD>- Number of iterations of restart conditions before restart
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_anderson_restart </B></TD><TD>- Number of iterations before periodic restart
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_anderson_monitor </B></TD><TD>- Prints relevant information about the ngmres iteration
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
<P>
The Anderson Mixing method combines m previous solutions into a minimum-residual solution by solving a small linearized
optimization problem at each iteration.
<P>
<H3><FONT COLOR="#CC3333">References</FONT></H3>
<P>
"D. G. Anderson. Iterative procedures for nonlinear integral equations.
J. Assoc. Comput. Mach., 12:547–560, 1965."
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../SNES/SNESNGMRES.html#SNESNGMRES">SNESNGMRES</A>, <A HREF="../SNES/SNESCreate.html#SNESCreate">SNESCreate</A>(), <A HREF="../SNES/SNES.html#SNES">SNES</A>, <A HREF="../SNES/SNESSetType.html#SNESSetType">SNESSetType</A>(), <A HREF="../SNES/SNESType.html#SNESType">SNESType</A> (for list of available types)
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/snes/impls/ngmres/anderson.c.html#SNESAnderson">src/snes/impls/ngmres/anderson.c</A>
<BR><A HREF="./index.html">Index of all SNES routines</A>
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