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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
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<TITLE>DAGlobalToLocalBegin</TITLE>
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<A NAME="DAGlobalToLocalBegin"><H1>DAGlobalToLocalBegin</H1></A>
Maps values from the global vector to the local patch; the ghost points are included. Must be followed by <A HREF="../DA/DAGlobalToLocalEnd.html#DAGlobalToLocalEnd">DAGlobalToLocalEnd</A>() to complete the exchange.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscda.h"
int DAGlobalToLocalBegin(DA da,Vec g,InsertMode mode,Vec l)
</PRE>
Collective on <A HREF="../DA/DA.html#DA">DA</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>da </B></TD><TD>- the distributed array context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>g </B></TD><TD>- the global vector
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>mode </B></TD><TD>- one of INSERT_VALUES or ADD_VALUES
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>l </B> -the local values
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
The global and local vectors used here need not be the same as those
obtained from <A HREF="../DA/DACreateGlobalVector.html#DACreateGlobalVector">DACreateGlobalVector</A>() and <A HREF="../DA/DACreateLocalVector.html#DACreateLocalVector">DACreateLocalVector</A>(), BUT they
must have the same parallel data layout; they could, for example, be
obtained with <A HREF="../Vec/VecDuplicate.html#VecDuplicate">VecDuplicate</A>() from the <A HREF="../DA/DA.html#DA">DA</A> originating vectors.
<P>
<H3><FONT COLOR="#CC3333">Keywords</FONT></H3>
distributed array, global to local, begin
<BR>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../DA/DAGlobalToLocalEnd.html#DAGlobalToLocalEnd">DAGlobalToLocalEnd</A>(), <A HREF="../DA/DALocalToGlobal.html#DALocalToGlobal">DALocalToGlobal</A>(), <A HREF="../DA/DACreate2d.html#DACreate2d">DACreate2d</A>(),
<BR><A HREF="../DA/DALocalToLocalBegin.html#DALocalToLocalBegin">DALocalToLocalBegin</A>(), <A HREF="../DA/DALocalToLocalEnd.html#DALocalToLocalEnd">DALocalToLocalEnd</A>(),
<A HREF="../DA/DALocalToGlobalBegin.html#DALocalToGlobalBegin">DALocalToGlobalBegin</A>(), <A HREF="../DA/DALocalToGlobalEnd.html#DALocalToGlobalEnd">DALocalToGlobalEnd</A>()
<P>
<P>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/dm/da/src/dagtol.c.html#DAGlobalToLocalBegin">src/dm/da/src/dagtol.c</A>
<BR><A HREF="./index.html">Index of all DA 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/sles/examples/tutorials/ex14f.F.html">src/sles/examples/tutorials/ex14f.F.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex3.c.html">src/snes/examples/tutorials/ex3.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex5.c.html">src/snes/examples/tutorials/ex5.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex14.c.html">src/snes/examples/tutorials/ex14.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex18.c.html">src/snes/examples/tutorials/ex18.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex20.c.html">src/snes/examples/tutorials/ex20.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex23.c.html">src/snes/examples/tutorials/ex23.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex25.c.html">src/snes/examples/tutorials/ex25.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex26.c.html">src/snes/examples/tutorials/ex26.c.html</A><BR>
<A HREF="../../../src/snes/examples/tutorials/ex5f90.F.html">src/snes/examples/tutorials/ex5f90.F.html</A><BR>
<A HREF="../../../src/ts/examples/tutorials/ex2.c.html">src/ts/examples/tutorials/ex2.c.html</A><BR>
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