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<TITLE>VecCreateGhostBlockWithArray</TITLE>
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<A NAME="VecCreateGhostBlockWithArray"><H1>VecCreateGhostBlockWithArray</H1></A>
Creates a parallel vector with ghost padding on each processor; the caller allocates the array space. Indices in the ghost region are based on blocks.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscvec.h"
PetscErrorCode VecCreateGhostBlockWithArray(MPI_Comm comm,PetscInt bs,PetscInt n,PetscInt N,PetscInt nghost,const PetscInt ghosts[],const PetscScalar array[],Vec *vv)
</PRE>
Collective on <A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</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>comm </B></TD><TD>- the MPI communicator to use
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>bs </B></TD><TD>- block size
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>n </B></TD><TD>- local vector length
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>N </B></TD><TD>- global vector length (or <A HREF="../Sys/PETSC_DECIDE.html#PETSC_DECIDE">PETSC_DECIDE</A> to have calculated if n is given)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nghost </B></TD><TD>- number of local ghost blocks
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ghosts </B></TD><TD>- global indices of ghost blocks (or <A HREF="../Sys/PETSC_NULL.html#PETSC_NULL">PETSC_NULL</A> if not needed)
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>array </B></TD><TD>- the space to store the vector values (as long as n + nghost*bs)
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>vv </B> -the global vector representation (without ghost points as part of vector)
<br>
<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>
n is the local vector size (total local size not the number of blocks) while nghost
is the number of blocks in the ghost portion, i.e. the number of elements in the ghost
portion is bs*nghost
<P>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Vec/VecCreate.html#VecCreate">VecCreate</A>(), <A HREF="../Vec/VecGhostGetLocalForm.html#VecGhostGetLocalForm">VecGhostGetLocalForm</A>(), <A HREF="../Vec/VecGhostRestoreLocalForm.html#VecGhostRestoreLocalForm">VecGhostRestoreLocalForm</A>(),
<BR><A HREF="../Vec/VecCreateGhost.html#VecCreateGhost">VecCreateGhost</A>(), <A HREF="../Vec/VecCreateSeqWithArray.html#VecCreateSeqWithArray">VecCreateSeqWithArray</A>(), <A HREF="../Vec/VecCreateMPIWithArray.html#VecCreateMPIWithArray">VecCreateMPIWithArray</A>(),
<A HREF="../Vec/VecCreateGhostWithArray.html#VecCreateGhostWithArray">VecCreateGhostWithArray</A>(), VecCreateGhostBlocked()
<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#VecCreateGhostBlockWithArray">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/ex14f.F.html">src/vec/vec/examples/tutorials/ex14f.F.html</A><BR>
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