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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</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-3.14.5 v3.14.5 docs/manualpages/DM/DMCompositeGather.html "><small>Report Typos and Errors</small></a></div>
<A NAME="DMCompositeGather"><H1>DMCompositeGather</H1></A>
Gathers into a global packed vector from its individual local vectors
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscdmcomposite.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../DM/DMCompositeGather.html#DMCompositeGather">DMCompositeGather</A>(<A HREF="../DM/DM.html#DM">DM</A> dm,<A HREF="../Sys/InsertMode.html#InsertMode">InsertMode</A> imode,<A HREF="../Vec/Vec.html#Vec">Vec</A> gvec,...)
</PRE>
Collective on dm
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dm </B></TD><TD>- the packer object
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>gvec </B></TD><TD>- the global vector
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>imode </B></TD><TD>- <A HREF="../Sys/INSERT_VALUES.html#INSERT_VALUES">INSERT_VALUES</A> or <A HREF="../Sys/ADD_VALUES.html#ADD_VALUES">ADD_VALUES</A>
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B><A HREF="../Vec/Vec.html#Vec">Vec</A> ... </B></TD><TD>- the individual sequential vectors, NULL for any that are not needed
</TD></TR></TABLE>
<P>
<P>
Not available from Fortran, Fortran users can use <A HREF="../DM/DMCompositeGatherArray.html#DMCompositeGatherArray">DMCompositeGatherArray</A>()
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../DM/DMDestroy.html#DMDestroy">DMDestroy</A>(), <A HREF="../DM/DMCompositeAddDM.html#DMCompositeAddDM">DMCompositeAddDM</A>(), <A HREF="../DM/DMCreateGlobalVector.html#DMCreateGlobalVector">DMCreateGlobalVector</A>(),
<BR><A HREF="../DM/DMCompositeScatter.html#DMCompositeScatter">DMCompositeScatter</A>(), <A HREF="../DM/DMCompositeCreate.html#DMCompositeCreate">DMCompositeCreate</A>(), <A HREF="../DM/DMCompositeGetISLocalToGlobalMappings.html#DMCompositeGetISLocalToGlobalMappings">DMCompositeGetISLocalToGlobalMappings</A>(), <A HREF="../DM/DMCompositeGetAccess.html#DMCompositeGetAccess">DMCompositeGetAccess</A>(),
<A HREF="../DM/DMCompositeGetLocalVectors.html#DMCompositeGetLocalVectors">DMCompositeGetLocalVectors</A>(), <A HREF="../DM/DMCompositeRestoreLocalVectors.html#DMCompositeRestoreLocalVectors">DMCompositeRestoreLocalVectors</A>(), <A HREF="../DM/DMCompositeGetEntries.html#DMCompositeGetEntries">DMCompositeGetEntries</A>()
<P>
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>advanced<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/dm/impls/composite/pack.c.html#DMCompositeGather">src/dm/impls/composite/pack.c</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/snes/tutorials/ex21.c.html">src/snes/tutorials/ex21.c.html</A><BR>
<BR><A HREF="./index.html">Index of all DM routines</A>
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