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<div id="version" align=right><b>slepc-3.22.2 2024-12-02</b></div>
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<H1>PEPGetIterationNumber</H1>
Gets the current iteration number. If the call to <A HREF="../PEP/PEPSolve.html#PEPSolve">PEPSolve</A>() is complete, then it returns the number of iterations carried out by the solution method.
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcpep.h"
<A HREF="https://petsc.org/release/manualpages/Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../PEP/PEPGetIterationNumber.html#PEPGetIterationNumber">PEPGetIterationNumber</A>(<A HREF="../PEP/PEP.html#PEP">PEP</A> pep,<A HREF="https://petsc.org/release/manualpages/Sys/PetscInt.html#PetscInt">PetscInt</A> *its)
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#883300">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>pep </B></TD><TD> - the polynomial eigensolver context
</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>its </B></TD><TD> - number of iterations
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Note</FONT></H3>
During the i-th iteration this call returns i-1. If <A HREF="../PEP/PEPSolve.html#PEPSolve">PEPSolve</A>() is
complete, then parameter "its" contains either the iteration number at
which convergence was successfully reached, or failure was detected.
Call <A HREF="../PEP/PEPGetConvergedReason.html#PEPGetConvergedReason">PEPGetConvergedReason</A>() to determine if the solver converged or
failed and why.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../PEP/PEPGetConvergedReason.html#PEPGetConvergedReason">PEPGetConvergedReason</A>(), <A HREF="../PEP/PEPSetTolerances.html#PEPSetTolerances">PEPSetTolerances</A>()
<BR><P><B></B><H3><FONT COLOR="#883300">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#883300">Location</FONT></H3>
</B><A HREF="../../../src/pep/interface/pepsolve.c.html#PEPGetIterationNumber">src/pep/interface/pepsolve.c</A>
<P><H3><FONT COLOR="#883300">Examples</FONT></H3>
<A HREF="../../../src/pep/tutorials/ex17.c.html">src/pep/tutorials/ex17.c</A><BR>
<BR><BR><A HREF="./index.html">Index of all PEP routines</A>
<BR><A HREF="../../../docs/manual.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
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