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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
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<TITLE>VecGhostUpdateEnd</TITLE>
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<A NAME="VecGhostUpdateEnd"><H1>VecGhostUpdateEnd</H1></A>
End the vector scatter to update the vector from local representation to global or global representation to local.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscvec.h"
int VecGhostUpdateEnd(Vec g,InsertMode insertmode,ScatterMode scattermode)
</PRE>
Collective on <A HREF="../Vec/Vec.html#Vec">Vec</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>g </B></TD><TD>- the vector (obtained with <A HREF="../Vec/VecCreateGhost.html#VecCreateGhost">VecCreateGhost</A>() or <A HREF="../Vec/VecDuplicate.html#VecDuplicate">VecDuplicate</A>())
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>insertmode </B></TD><TD>- one of ADD_VALUES or INSERT_VALUES
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>scattermode </B></TD><TD>- one of SCATTER_FORWARD or SCATTER_REVERSE
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
<P>
Use the following to update the ghost regions with correct values from the owning process
<PRE>
<A HREF="../Vec/VecGhostUpdateBegin.html#VecGhostUpdateBegin">VecGhostUpdateBegin</A>(v,INSERT_VALUES,SCATTER_FORWARD);
<A HREF="../Vec/VecGhostUpdateEnd.html#VecGhostUpdateEnd">VecGhostUpdateEnd</A>(v,INSERT_VALUES,SCATTER_FORWARD);
</PRE>
<P>
Use the following to accumulate the ghost region values onto the owning processors
<PRE>
<A HREF="../Vec/VecGhostUpdateBegin.html#VecGhostUpdateBegin">VecGhostUpdateBegin</A>(v,ADD_VALUES,SCATTER_REVERSE);
<A HREF="../Vec/VecGhostUpdateEnd.html#VecGhostUpdateEnd">VecGhostUpdateEnd</A>(v,ADD_VALUES,SCATTER_REVERSE);
</PRE>
<P>
To accumulate the ghost region values onto the owning processors and then update
the ghost regions correctly, call the later followed by the former, i.e.,
<PRE>
<A HREF="../Vec/VecGhostUpdateBegin.html#VecGhostUpdateBegin">VecGhostUpdateBegin</A>(v,ADD_VALUES,SCATTER_REVERSE);
<A HREF="../Vec/VecGhostUpdateEnd.html#VecGhostUpdateEnd">VecGhostUpdateEnd</A>(v,ADD_VALUES,SCATTER_REVERSE);
<A HREF="../Vec/VecGhostUpdateBegin.html#VecGhostUpdateBegin">VecGhostUpdateBegin</A>(v,INSERT_VALUES,SCATTER_FORWARD);
<A HREF="../Vec/VecGhostUpdateEnd.html#VecGhostUpdateEnd">VecGhostUpdateEnd</A>(v,INSERT_VALUES,SCATTER_FORWARD);
</PRE>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Vec/VecCreateGhost.html#VecCreateGhost">VecCreateGhost</A>(), <A HREF="../Vec/VecGhostUpdateBegin.html#VecGhostUpdateBegin">VecGhostUpdateBegin</A>(), <A HREF="../Vec/VecGhostGetLocalForm.html#VecGhostGetLocalForm">VecGhostGetLocalForm</A>(),
<BR><A HREF="../Vec/VecGhostRestoreLocalForm.html#VecGhostRestoreLocalForm">VecGhostRestoreLocalForm</A>(),<A HREF="../Vec/VecCreateGhostWithArray.html#VecCreateGhostWithArray">VecCreateGhostWithArray</A>()
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/vec/impls/mpi/pbvec.c.html#VecGhostUpdateEnd">src/vec/impls/mpi/pbvec.c</A>
<BR><A HREF="./index.html">Index of all Vec routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/vec/examples/tutorials/ex9.c.html">src/vec/examples/tutorials/ex9.c.html</A><BR>
<A HREF="../../../src/vec/examples/tutorials/ex9f.F.html">src/vec/examples/tutorials/ex9f.F.html</A><BR>
<A HREF="../../../src/vec/examples/tutorials/ex14f.F.html">src/vec/examples/tutorials/ex14f.F.html</A><BR>
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