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<TITLE>MatSNESMFSetPeriod</TITLE>
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<A NAME="MatSNESMFSetPeriod"><H1>MatSNESMFSetPeriod</H1></A>
Sets how often h is recomputed, by default it is everytime
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscsnes.h"
int MatSNESMFSetPeriod(Mat mat,int period)
</PRE>
Collective on <A HREF="../Mat/Mat.html#Mat">Mat</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>mat </B></TD><TD>- the matrix free matrix created via <A HREF="../SNESMF/MatCreateSNESMF.html#MatCreateSNESMF">MatCreateSNESMF</A>()
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>period </B></TD><TD>- 1 for everytime, 2 for every second etc
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-snes_mf_period <period></B></TD><TD>-
</TD></TR>
<P>
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
<A HREF="../SNES/SNES.html#SNES">SNES</A>, matrix-free, parameters
<BR>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../SNESMF/MatCreateSNESMF.html#MatCreateSNESMF">MatCreateSNESMF</A>(),<A HREF="../SNESMF/MatSNESMFGetH.html#MatSNESMFGetH">MatSNESMFGetH</A>(),
<BR><A HREF="../SNESMF/MatSNESMFSetHHistory.html#MatSNESMFSetHHistory">MatSNESMFSetHHistory</A>(), <A HREF="../SNESMF/MatSNESMFResetHHistory.html#MatSNESMFResetHHistory">MatSNESMFResetHHistory</A>(),
MatSNESMFKSPMonitor()
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/snes/mf/snesmfj.c.html#MatSNESMFSetPeriod">src/snes/mf/snesmfj.c</A>
<BR><A HREF="./index.html">Index of all SNESMF routines</A>
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