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<TITLE>STPrecondSetKSPHasMat</TITLE>
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<H1>STPrecondSetKSPHasMat</H1>
Sets a flag indicating that during <A HREF="../ST/STSetUp.html#STSetUp">STSetUp</A> the coefficient matrix of the KSP linear system (A) must be set to be the same matrix as the preconditioner (P).
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcst.h"
PetscErrorCode STPrecondSetKSPHasMat(ST st,PetscBool setmat)
</PRE>
Collective on <A HREF="../ST/ST.html#ST">ST</A>
<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>st </B></TD><TD> - the spectral transformation context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>setmat </B></TD><TD> - the flag
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
In most cases, the preconditioner matrix is used only in the PC object, but
in external solvers this matrix must be provided also as the A-matrix in
the KSP object.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../ST/STPrecondGetKSPHasMat.html#STPrecondGetKSPHasMat">STPrecondGetKSPHasMat</A>(), <A HREF="../ST/STSetShift.html#STSetShift">STSetShift</A>()
<BR><P><B><FONT COLOR="#883300">Location: </FONT></B><A HREF="../../../src/st/impls/precond/precond.c.html#STPrecondSetKSPHasMat">src/st/impls/precond/precond.c</A>
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