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<TITLE>PetscSectionCreate</TITLE>
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<A NAME="PetscSectionCreate"><H1>PetscSectionCreate</H1></A>
Allocates <A HREF="../Vec/PetscSection.html#PetscSection">PetscSection</A> space and sets the map contents to the default.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscvec.h"
PetscErrorCode PetscSectionCreate(MPI_Comm comm, PetscSection *s)
</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
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>s </B></TD><TD>- pointer to the section
</TD></TR></TABLE>
<P>
<P>
Notes: Typical calling sequence
<A HREF="../Vec/PetscLayoutCreate.html#PetscLayoutCreate">PetscLayoutCreate</A>(<A HREF="../Sys/MPI_Comm.html#MPI_Comm">MPI_Comm</A>,<A HREF="../Vec/PetscLayout.html#PetscLayout">PetscLayout</A> *);
<A HREF="../Vec/PetscLayoutSetBlockSize.html#PetscLayoutSetBlockSize">PetscLayoutSetBlockSize</A>(<A HREF="../Vec/PetscLayout.html#PetscLayout">PetscLayout</A>,1);
<A HREF="../Vec/PetscLayoutSetSize.html#PetscLayoutSetSize">PetscLayoutSetSize</A>(<A HREF="../Vec/PetscLayout.html#PetscLayout">PetscLayout</A>,n) or <A HREF="../Vec/PetscLayoutSetLocalSize.html#PetscLayoutSetLocalSize">PetscLayoutSetLocalSize</A>(<A HREF="../Vec/PetscLayout.html#PetscLayout">PetscLayout</A>,N);
<A HREF="../Vec/PetscLayoutSetUp.html#PetscLayoutSetUp">PetscLayoutSetUp</A>(<A HREF="../Vec/PetscLayout.html#PetscLayout">PetscLayout</A>);
<A HREF="../Vec/PetscLayoutGetSize.html#PetscLayoutGetSize">PetscLayoutGetSize</A>(<A HREF="../Vec/PetscLayout.html#PetscLayout">PetscLayout</A>,<A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> *); or <A HREF="../Vec/PetscLayoutGetLocalSize.html#PetscLayoutGetLocalSize">PetscLayoutGetLocalSize</A>(<A HREF="../Vec/PetscLayout.html#PetscLayout">PetscLayout</A>,<A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> *;)
<A HREF="../Vec/PetscLayoutDestroy.html#PetscLayoutDestroy">PetscLayoutDestroy</A>(<A HREF="../Vec/PetscLayout.html#PetscLayout">PetscLayout</A>);
<P>
The <A HREF="../Vec/PetscSection.html#PetscSection">PetscSection</A> object and methods are intended to be used in the PETSc <A HREF="../Vec/Vec.html#Vec">Vec</A> and <A HREF="../Mat/Mat.html#Mat">Mat</A> implementions; it is
recommended they not be used in user codes unless you really gain something in their use.
<P>
<H3><FONT COLOR="#CC3333">Fortran Notes</FONT></H3>
Not available from Fortran
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Vec/PetscSection.html#PetscSection">PetscSection</A>, <A HREF="../Vec/PetscSectionDestroy.html#PetscSectionDestroy">PetscSectionDestroy</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>developer
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/vec/vec/impls/seq/vsection.c.html#PetscSectionCreate">src/vec/vec/impls/seq/vsection.c</A>
<BR><A HREF="./index.html">Index of all Vec routines</A>
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