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<div id="version" align=right><b>slepc-3.22.2 2024-12-02</b></div>
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<H1>EPSStoppingBasic</H1>
Default routine to determine whether the outer eigensolver iteration must be stopped.
<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/EPSStoppingBasic.html#EPSStoppingBasic">EPSStoppingBasic</A>(<A HREF="../EPS/EPS.html#EPS">EPS</A> eps,<A HREF="https://petsc.org/release/manualpages/Sys/PetscInt.html#PetscInt">PetscInt</A> its,<A HREF="https://petsc.org/release/manualpages/Sys/PetscInt.html#PetscInt">PetscInt</A> max_it,<A HREF="https://petsc.org/release/manualpages/Sys/PetscInt.html#PetscInt">PetscInt</A> nconv,<A HREF="https://petsc.org/release/manualpages/Sys/PetscInt.html#PetscInt">PetscInt</A> nev,<A HREF="../EPS/EPSConvergedReason.html#EPSConvergedReason">EPSConvergedReason</A> *reason,void *ctx)
</PRE>
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>its </B></TD><TD> - current number of iterations
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>max_it </B></TD><TD> - maximum number of iterations
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nconv </B></TD><TD> - number of currently converged eigenpairs
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nev </B></TD><TD> - number of requested eigenpairs
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD> - context (not used here)
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Output Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>reason </B></TD><TD> - result of the stopping test
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
A positive value of reason indicates that the iteration has finished successfully
(converged), and a negative value indicates an error condition (diverged). If
the iteration needs to be continued, reason must be set to <A HREF="../EPS/EPSConvergedReason.html#EPSConvergedReason">EPS_CONVERGED_ITERATING</A>
(zero).
<P>
<A HREF="../EPS/EPSStoppingBasic.html#EPSStoppingBasic">EPSStoppingBasic</A>() will stop if all requested eigenvalues are converged, or if
the maximum number of iterations has been reached.
<P>
Use <A HREF="../EPS/EPSSetStoppingTest.html#EPSSetStoppingTest">EPSSetStoppingTest</A>() to provide your own test instead of using this one.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../EPS/EPSSetStoppingTest.html#EPSSetStoppingTest">EPSSetStoppingTest</A>(), <A HREF="../EPS/EPSConvergedReason.html#EPSConvergedReason">EPSConvergedReason</A>, <A HREF="../EPS/EPSGetConvergedReason.html#EPSGetConvergedReason">EPSGetConvergedReason</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/epsdefault.c.html#EPSStoppingBasic">src/eps/interface/epsdefault.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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