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<TITLE>DMKSPSetComputeRHS</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/DMKSPSetComputeRHS.html "><small>Report Typos and Errors</small></a></div>
<A NAME="DMKSPSetComputeRHS"><H1>DMKSPSetComputeRHS</H1></A>
set <A HREF="../KSP/KSP.html#KSP">KSP</A> right hand side evaluation function
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscksp.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../KSP/DMKSPSetComputeRHS.html#DMKSPSetComputeRHS">DMKSPSetComputeRHS</A>(<A HREF="../DM/DM.html#DM">DM</A> dm,<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> (*func)(<A HREF="../KSP/KSP.html#KSP">KSP</A>,<A HREF="../Vec/Vec.html#Vec">Vec</A>,void*),void *ctx)
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#CC3333">Input Argument</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dm </B></TD><TD>- <A HREF="../DM/DM.html#DM">DM</A> to be used with <A HREF="../KSP/KSP.html#KSP">KSP</A>
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>func </B></TD><TD>- right hand side evaluation function, see <A HREF="../KSP/KSPSetComputeRHS.html#KSPSetComputeRHS">KSPSetComputeRHS</A>() for calling sequence
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ctx </B></TD><TD>- context for right hand side evaluation
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Note</FONT></H3>
<A HREF="../KSP/KSPSetComputeRHS.html#KSPSetComputeRHS">KSPSetComputeRHS</A>() is normally used, but it calls this function internally because the user context is actually
associated with the <A HREF="../DM/DM.html#DM">DM</A>. This makes the interface consistent regardless of whether the user interacts with a <A HREF="../DM/DM.html#DM">DM</A> or
not. If <A HREF="../DM/DM.html#DM">DM</A> took a more central role at some later date, this could become the primary method of setting the matrix.
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
DMKSPSetContext(), <A HREF="../KSP/DMKSPGetComputeRHS.html#DMKSPGetComputeRHS">DMKSPGetComputeRHS</A>(), KSPSetRHS()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>advanced<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/ksp/ksp/interface/dmksp.c.html#DMKSPSetComputeRHS">src/ksp/ksp/interface/dmksp.c</A>
<BR><A HREF="./index.html">Index of all KSP routines</A>
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