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<TITLE>KSPSetDMActive</TITLE>
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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.10.3 v3.10.3 docs/manualpages/KSP/KSPSetDMActive.html "><small>Report Typos and Errors</small></a></div>
<A NAME="KSPSetDMActive"><H1>KSPSetDMActive</H1></A>
Indicates the <A HREF="../DM/DM.html#DM">DM</A> should be used to generate the linear system matrix and right hand side
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscksp.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../KSP/KSPSetDMActive.html#KSPSetDMActive">KSPSetDMActive</A>(<A HREF="../KSP/KSP.html#KSP">KSP</A> ksp,<A HREF="../Sys/PetscBool.html#PetscBool">PetscBool</A> flg)
</PRE>
Logically Collective on <A HREF="../KSP/KSP.html#KSP">KSP</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ksp </B></TD><TD>- the preconditioner context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>flg </B></TD><TD>- use the <A HREF="../DM/DM.html#DM">DM</A>
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
By default <A HREF="../KSP/KSPSetDM.html#KSPSetDM">KSPSetDM</A>() sets the <A HREF="../DM/DM.html#DM">DM</A> as active, call <A HREF="../KSP/KSPSetDMActive.html#KSPSetDMActive">KSPSetDMActive</A>(ksp,<A HREF="../Sys/PETSC_FALSE.html#PETSC_FALSE">PETSC_FALSE</A>); after <A HREF="../KSP/KSPSetDM.html#KSPSetDM">KSPSetDM</A>(ksp,dm) to not have the <A HREF="../KSP/KSP.html#KSP">KSP</A> object use the <A HREF="../DM/DM.html#DM">DM</A> to generate the matrices.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../KSP/KSPGetDM.html#KSPGetDM">KSPGetDM</A>(), <A HREF="../KSP/KSPSetDM.html#KSPSetDM">KSPSetDM</A>(), <A HREF="../SNES/SNESSetDM.html#SNESSetDM">SNESSetDM</A>(), <A HREF="../KSP/KSPSetComputeOperators.html#KSPSetComputeOperators">KSPSetComputeOperators</A>(), <A HREF="../KSP/KSPSetComputeRHS.html#KSPSetComputeRHS">KSPSetComputeRHS</A>(), <A HREF="../KSP/KSPSetComputeInitialGuess.html#KSPSetComputeInitialGuess">KSPSetComputeInitialGuess</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/ksp/ksp/interface/iterativ.c.html#KSPSetDMActive">src/ksp/ksp/interface/iterativ.c</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex43.c.html">src/ksp/ksp/examples/tutorials/ex43.c.html</A><BR>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex70.c.html">src/ksp/ksp/examples/tutorials/ex70.c.html</A><BR>
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