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<div id="version" align=right><b>slepc-3.23.1 2025-05-01</b></div>
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<H1>EPSKrylovSchurSetRestart</H1>
Sets the restart parameter for the Krylov-Schur method, in particular the proportion of basis vectors that must be kept after restart.
<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/EPSKrylovSchurSetRestart.html#EPSKrylovSchurSetRestart">EPSKrylovSchurSetRestart</A>(<A HREF="../EPS/EPS.html#EPS">EPS</A> eps,<A HREF="https://petsc.org/release/manualpages/Sys/PetscReal.html#PetscReal">PetscReal</A> keep)
</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> - the eigenproblem solver context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>keep </B></TD><TD> - the number of vectors to be kept at restart
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Options Database Key</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-eps_krylovschur_restart </B></TD><TD> - Sets the restart parameter
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
Allowed values are in the range [0.1,0.9]. The default is 0.5.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../EPS/EPSKrylovSchurGetRestart.html#EPSKrylovSchurGetRestart">EPSKrylovSchurGetRestart</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/impls/krylov/krylovschur/krylovschur.c.html#EPSKrylovSchurSetRestart">src/eps/impls/krylov/krylovschur/krylovschur.c</A>
<BR><BR><A HREF="./index.html">Index of all EPS routines</A>
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