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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
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<A NAME="SNESGetLinearSolveIterations"><H1>SNESGetLinearSolveIterations</H1></A>
Gets the total number of linear iterations used by the nonlinear solver.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscsnes.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../SNES/SNESGetLinearSolveIterations.html#SNESGetLinearSolveIterations">SNESGetLinearSolveIterations</A>(<A HREF="../SNES/SNES.html#SNES">SNES</A> snes,<A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> *lits)
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>snes </B></TD><TD>- <A HREF="../SNES/SNES.html#SNES">SNES</A> context
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>lits </B></TD><TD>- number of linear iterations
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
This counter is reset to zero for each successive call to <A HREF="../SNES/SNESSolve.html#SNESSolve">SNESSolve</A>() unless <A HREF="../SNES/SNESSetCountersReset.html#SNESSetCountersReset">SNESSetCountersReset</A>() is used.
<P>
If the linear solver fails inside the <A HREF="../SNES/SNESSolve.html#SNESSolve">SNESSolve</A>() the iterations for that call to the linear solver are not included. If you wish to count them
then call <A HREF="../KSP/KSPGetIterationNumber.html#KSPGetIterationNumber">KSPGetIterationNumber</A>() after the failed solve.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../SNES/SNESGetIterationNumber.html#SNESGetIterationNumber">SNESGetIterationNumber</A>(), <A HREF="../SNES/SNESGetLinearSolveFailures.html#SNESGetLinearSolveFailures">SNESGetLinearSolveFailures</A>(), <A HREF="../SNES/SNESGetMaxLinearSolveFailures.html#SNESGetMaxLinearSolveFailures">SNESGetMaxLinearSolveFailures</A>(), <A HREF="../SNES/SNESSetCountersReset.html#SNESSetCountersReset">SNESSetCountersReset</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/snes/interface/snes.c.html#SNESGetLinearSolveIterations">src/snes/interface/snes.c</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/snes/tutorials/ex5.c.html">src/snes/tutorials/ex5.c.html</A><BR>
<A HREF="../../../src/snes/tutorials/ex18.c.html">src/snes/tutorials/ex18.c.html</A><BR>
<A HREF="../../../src/snes/tutorials/ex25.c.html">src/snes/tutorials/ex25.c.html</A><BR>
<A HREF="../../../src/snes/tutorials/ex48.c.html">src/snes/tutorials/ex48.c.html</A><BR>
<A HREF="../../../src/ts/tutorials/ex14.c.html">src/ts/tutorials/ex14.c.html</A><BR>
<A HREF="../../../src/ts/tutorials/ex24.c.html">src/ts/tutorials/ex24.c.html</A><BR>
<BR><A HREF="./index.html">Index of all SNES 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>
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