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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</b></div>
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<A NAME="VecCreateNest"><H1>VecCreateNest</H1></A>
Creates a new vector containing several nested subvectors, each stored separately
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscvec.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../Vec/VecCreateNest.html#VecCreateNest">VecCreateNest</A>(<A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A> comm,<A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> nb,<A HREF="../IS/IS.html#IS">IS</A> is[],<A HREF="../Vec/Vec.html#Vec">Vec</A> x[],<A HREF="../Vec/Vec.html#Vec">Vec</A> *Y)
</PRE>
Collective on <A HREF="../Vec/Vec.html#Vec">Vec</A>
<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>comm </B></TD><TD>- Communicator for the new <A HREF="../Vec/Vec.html#Vec">Vec</A>
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nb </B></TD><TD>- number of nested blocks
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>is </B></TD><TD>- array of nb index sets describing each nested block, or NULL to pack subvectors contiguously
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>x </B></TD><TD>- array of nb sub-vectors
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameter</FONT></H3>
<DT><B>Y </B> -new vector
<br>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Vec/VecCreate.html#VecCreate">VecCreate</A>(), <A HREF="../Mat/MatCreateNest.html#MatCreateNest">MatCreateNest</A>(), <A HREF="../DM/DMSetVecType.html#DMSetVecType">DMSetVecType</A>(), <A HREF="../Vec/VECNEST.html#VECNEST">VECNEST</A>
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>advanced<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/vec/vec/impls/nest/vecnest.c.html#VecCreateNest">src/vec/vec/impls/nest/vecnest.c</A>
<BR><A HREF="./index.html">Index of all Vec routines</A>
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