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<TITLE>VecMPISetGhost</TITLE>
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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</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-3.7.5 v3.7.5 docs/manualpages/Vec/VecMPISetGhost.html "><small>Report Typos and Errors</small></a></div>
<A NAME="VecMPISetGhost"><H1>VecMPISetGhost</H1></A>
Sets the ghost points for an MPI ghost vector
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscvec.h"
PetscErrorCode VecMPISetGhost(Vec vv,PetscInt nghost,const PetscInt ghosts[])
</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>vv </B></TD><TD>- the MPI vector
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nghost </B></TD><TD>- number of local ghost points
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ghosts </B></TD><TD>- global indices of ghost points, these do not need to be in increasing order (sorted)
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
Use <A HREF="../Vec/VecGhostGetLocalForm.html#VecGhostGetLocalForm">VecGhostGetLocalForm</A>() to access the local, ghosted representation
of the vector.
<P>
This also automatically sets the <A HREF="../IS/ISLocalToGlobalMapping.html#ISLocalToGlobalMapping">ISLocalToGlobalMapping</A>() for this vector.
<P>
You must call this AFTER you have set the type of the vector (with <A HREF="../Vec/VecSetType.html#VecSetType">VecSetType</A>()) and the size (with <A HREF="../Vec/VecSetSizes.html#VecSetSizes">VecSetSizes</A>()).
<P>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Vec/VecCreateSeq.html#VecCreateSeq">VecCreateSeq</A>(), <A HREF="../Vec/VecCreate.html#VecCreate">VecCreate</A>(), <A HREF="../Vec/VecDuplicate.html#VecDuplicate">VecDuplicate</A>(), <A HREF="../Vec/VecDuplicateVecs.html#VecDuplicateVecs">VecDuplicateVecs</A>(), <A HREF="../Vec/VecCreateMPI.html#VecCreateMPI">VecCreateMPI</A>(),
<BR><A HREF="../Vec/VecGhostGetLocalForm.html#VecGhostGetLocalForm">VecGhostGetLocalForm</A>(), <A HREF="../Vec/VecGhostRestoreLocalForm.html#VecGhostRestoreLocalForm">VecGhostRestoreLocalForm</A>(), <A HREF="../Vec/VecGhostUpdateBegin.html#VecGhostUpdateBegin">VecGhostUpdateBegin</A>(),
<A HREF="../Vec/VecCreateGhostWithArray.html#VecCreateGhostWithArray">VecCreateGhostWithArray</A>(), <A HREF="../Vec/VecCreateMPIWithArray.html#VecCreateMPIWithArray">VecCreateMPIWithArray</A>(), <A HREF="../Vec/VecGhostUpdateEnd.html#VecGhostUpdateEnd">VecGhostUpdateEnd</A>(),
<A HREF="../Vec/VecCreateGhostBlock.html#VecCreateGhostBlock">VecCreateGhostBlock</A>(), <A HREF="../Vec/VecCreateGhostBlockWithArray.html#VecCreateGhostBlockWithArray">VecCreateGhostBlockWithArray</A>()
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/vec/vec/impls/mpi/pbvec.c.html#VecMPISetGhost">src/vec/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/vec/examples/tutorials/ex9.c.html">src/vec/vec/examples/tutorials/ex9.c.html</A><BR>
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