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<div id="version" align=right><b>slepc-3.14.2 2021-02-01</b></div>
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<H1>EPSArnoldiSetDelayed</H1>
Activates or deactivates delayed reorthogonalization in the Arnoldi iteration.
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepceps.h"
PetscErrorCode <A HREF="../EPS/EPSArnoldiSetDelayed.html#EPSArnoldiSetDelayed">EPSArnoldiSetDelayed</A>(<A HREF="../EPS/EPS.html#EPS">EPS</A> eps,PetscBool delayed)
</PRE>
Logically Collective on eps
<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>delayed </B></TD><TD> - boolean flag
</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_arnoldi_delayed </B></TD><TD> - Activates delayed reorthogonalization in Arnoldi
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Note</FONT></H3>
Delayed reorthogonalization is an aggressive optimization for the Arnoldi
eigensolver than may provide better scalability, but sometimes makes the
solver converge less than the default algorithm.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../EPS/EPSArnoldiGetDelayed.html#EPSArnoldiGetDelayed">EPSArnoldiGetDelayed</A>()
<BR><P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/eps/impls/krylov/arnoldi/arnoldi.c.html#EPSArnoldiSetDelayed">src/eps/impls/krylov/arnoldi/arnoldi.c</A>
<BR><A HREF="./index.html">Index of all EPS routines</A>
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