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<div id="version" align=right><b>slepc-3.22.2 2024-12-02</b></div>
<div id="bugreport" align=right><a href="mailto:slepc-maint@upv.es?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: slepc-3.22.2 v3.22.2 docs/manualpages/EPS/EPSSetStoppingTestFunction.html "><small>Report Typos and Errors</small></a></div>
<H1>EPSSetStoppingTestFunction</H1>
Sets a function to decide when to stop the outer iteration of the eigensolver.
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepceps.h"
<A HREF="https://petsc.org/release/manualpages/Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../EPS/EPSSetStoppingTestFunction.html#EPSSetStoppingTestFunction">EPSSetStoppingTestFunction</A>(<A HREF="../EPS/EPS.html#EPS">EPS</A> eps,<A HREF="../EPS/EPSStoppingTestFn.html#EPSStoppingTestFn">EPSStoppingTestFn</A> *func,void* ctx,<A HREF="https://petsc.org/release/manualpages/Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> (*destroy)(void*))
</PRE>
Logically Collective
<P>
<H3><FONT COLOR="#883300">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>eps </B></TD><TD> - eigensolver context obtained from <A HREF="../EPS/EPSCreate.html#EPSCreate">EPSCreate</A>()
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>func </B></TD><TD> - stopping test function, see <A HREF="../EPS/EPSStoppingTestFn.html#EPSStoppingTestFn">EPSStoppingTestFn</A> for the calling sequence
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD> - context for private data for the stopping routine (may be NULL)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>destroy </B></TD><TD> - a routine for destroying the context (may be NULL)
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Note</FONT></H3>
Normal usage is to first call the default routine <A HREF="../EPS/EPSStoppingBasic.html#EPSStoppingBasic">EPSStoppingBasic</A>() and then
set reason to <A HREF="../EPS/EPSConvergedReason.html#EPSConvergedReason">EPS_CONVERGED_USER</A> if some user-defined conditions have been
met. To let the eigensolver continue iterating, the result must be left as
<A HREF="../EPS/EPSConvergedReason.html#EPSConvergedReason">EPS_CONVERGED_ITERATING</A>.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../EPS/EPSSetStoppingTest.html#EPSSetStoppingTest">EPSSetStoppingTest</A>(), <A HREF="../EPS/EPSStoppingBasic.html#EPSStoppingBasic">EPSStoppingBasic</A>()
<BR><P><B></B><H3><FONT COLOR="#883300">Level</FONT></H3>advanced<BR>
<H3><FONT COLOR="#883300">Location</FONT></H3>
</B><A HREF="../../../src/eps/interface/epsopts.c.html#EPSSetStoppingTestFunction">src/eps/interface/epsopts.c</A>
<P><H3><FONT COLOR="#883300">Examples</FONT></H3>
<A HREF="../../../src/eps/tutorials/ex29.c.html">src/eps/tutorials/ex29.c</A><BR>
<A HREF="../../../src/eps/tutorials/ex30.c.html">src/eps/tutorials/ex30.c</A><BR>
<BR><BR><A HREF="./index.html">Index of all EPS routines</A>
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