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<A NAME="PCCompositeSetUseTrue"><H1>PCCompositeSetUseTrue</H1></A>
Sets a flag to indicate that the true matrix (rather than the matrix used to define the preconditioner) is used to compute the residual when the multiplicative scheme is used.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscpc.h"
#include "petscsles.h"
int PCCompositeSetUseTrue(PC pc)
</PRE>
Collective on <A HREF="../PC/PC.html#PC">PC</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<DT><B>pc </B> -the preconditioner context
<br>
<P>
<H3><FONT COLOR="#CC3333">Options Database Key</FONT></H3>
<DT><B>-pc_composite_true </B> -Activates <A HREF="../PC/PCCompositeSetUseTrue.html#PCCompositeSetUseTrue">PCCompositeSetUseTrue</A>()
<br>
<P>
<H3><FONT COLOR="#CC3333">Note</FONT></H3>
For the common case in which the preconditioning and linear
system matrices are identical, this routine is unnecessary.
<P>
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
<A HREF="../PC/PC.html#PC">PC</A>, composite preconditioner, set, true, flag
<BR>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../PC/PCSetOperators.html#PCSetOperators">PCSetOperators</A>(), <A HREF="../PC/PCBJacobiSetUseTrueLocal.html#PCBJacobiSetUseTrueLocal">PCBJacobiSetUseTrueLocal</A>(), <A HREF="../PC/PCSLESSetUseTrue.html#PCSLESSetUseTrue">PCSLESSetUseTrue</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>Developer
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/sles/pc/impls/composite/composite.c.html#PCCompositeSetUseTrue">src/sles/pc/impls/composite/composite.c</A>
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