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<TITLE>TSPseudoSetVerifyTimeStep</TITLE>
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<A NAME="TSPseudoSetVerifyTimeStep"><H1>TSPseudoSetVerifyTimeStep</H1></A>
Sets a user-defined routine to verify the quality of the last timestep.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscts.h"
PetscErrorCode PETSCTS_DLLEXPORT TSPseudoSetVerifyTimeStep(TS ts,PetscErrorCode (*dt)(TS,Vec,void*,PetscReal*,PetscTruth*),void* ctx)
</PRE>
Collective on <A HREF="../TS/TS.html#TS">TS</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>ts </B></TD><TD>- timestep context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dt </B></TD><TD>- user-defined function to verify timestep
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD>- [optional] user-defined context for private data
for the timestep verification routine (may be <A HREF="../Sys/PETSC_NULL.html#PETSC_NULL">PETSC_NULL</A>)
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Calling sequence of func</FONT></H3>
<DT><B>func (<A HREF="../TS/TS.html#TS">TS</A> ts,<A HREF="../Vec/Vec.html#Vec">Vec</A> update,void *ctx,<A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> *newdt,<A HREF="../Sys/PetscTruth.html#PetscTruth">PetscTruth</A> *flag);</B> -
<br>
<DT><B>update </B> -latest solution vector
<br>
<DT><B>ctx </B> -[optional] timestep context
<br>
<DT><B>newdt </B> -the timestep to use for the next step
<br>
<DT><B>flag </B> -flag indicating whether the last time step was acceptable
<br>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
The routine set here will be called by <A HREF="../TS/TSPseudoVerifyTimeStep.html#TSPseudoVerifyTimeStep">TSPseudoVerifyTimeStep</A>()
during the timestepping process.
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
timestep, pseudo, set, verify
<BR>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../TS/TSPseudoDefaultVerifyTimeStep.html#TSPseudoDefaultVerifyTimeStep">TSPseudoDefaultVerifyTimeStep</A>(), <A HREF="../TS/TSPseudoVerifyTimeStep.html#TSPseudoVerifyTimeStep">TSPseudoVerifyTimeStep</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/ts/impls/pseudo/posindep.c.html#TSPseudoSetVerifyTimeStep">src/ts/impls/pseudo/posindep.c</A>
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