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<A NAME="SNESLS"><H1>SNESLS</H1></A>
Newton based nonlinear solver that uses a line search
<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_ls [cubic,quadratic,basic,basicnonorms] </B></TD><TD>- Selects line search
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_ls_alpha <alpha> </B></TD><TD>- Sets alpha
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_ls_maxstep <max> </B></TD><TD>- Sets maxstep
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_ls_steptol <steptol> </B></TD><TD>- Sets steptol, this is the minimum step <A HREF="../Sys/size.html#size">size</A> that the line search code
will accept; min p[i]/x[i] < steptol. The -snes_stol <stol> is the minimum step length
the default convergence test will use and is based on 2-norm(p) < stol*2-norm(x)
</TD></TR></TABLE>
<P>
Notes: This is the default nonlinear solver in <A HREF="../SNES/SNES.html#SNES">SNES</A>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<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/SNESTR.html#SNESTR">SNESTR</A>, <A HREF="../SNES/SNESSetLineSearch.html#SNESSetLineSearch">SNESSetLineSearch</A>(),
<BR><A HREF="../SNES/SNESSetLineSearchCheck.html#SNESSetLineSearchCheck">SNESSetLineSearchCheck</A>(), <A HREF="../SNES/SNESNoLineSearch.html#SNESNoLineSearch">SNESNoLineSearch</A>(), <A HREF="../SNES/SNESCubicLineSearch.html#SNESCubicLineSearch">SNESCubicLineSearch</A>(), <A HREF="../SNES/SNESQuadraticLineSearch.html#SNESQuadraticLineSearch">SNESQuadraticLineSearch</A>(),
<A HREF="../SNES/SNESSetLineSearch.html#SNESSetLineSearch">SNESSetLineSearch</A>(), <A HREF="../SNES/SNESNoLineSearchNoNorms.html#SNESNoLineSearchNoNorms">SNESNoLineSearchNoNorms</A>()
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>none
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/snes/impls/ls/ls.c.html#SNESLS">src/snes/impls/ls/ls.c</A>
<BR><A HREF="./index.html">Index of all SNES routines</A>
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