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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="MatPreallocateSetLocal"><H1>MatPreallocateSetLocal</H1></A>
Indicates the locations (rows and columns) in the matrix where nonzeros will be inserted using a local number of the rows and columns
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
PetscErrorCode MatPreallocateSetLocal(ISLocalToGlobalMappping map,PetscInt nrows, PetscInt *rows,PetscInt ncols, PetscInt *cols,PetscInt *dnz, PetscInt *onz)
</PRE>
Not Collective
<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>map </B></TD><TD>- the row mapping from local numbering to global numbering
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nrows </B></TD><TD>- the number of rows indicated
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>rows </B></TD><TD>- the indices of the rows
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>cmap </B></TD><TD>- the column mapping from local to global numbering
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ncols </B></TD><TD>- the number of columns in the matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>cols </B></TD><TD>- the columns indicated
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>dnz </B></TD><TD>- the array that will be passed to the matrix preallocation routines
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ozn </B></TD><TD>- the other array passed to the matrix preallocation routines
</TD></TR></TABLE>
<P>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
See the <A href="../../docs/manual.pdf#nameddest=<A HREF="../../manual.pdf#chapter.11">Chapter 11 Hints for Performance Tuning</A>">Hints for Performance Improvment</A> chapter in the users manual for more details.
<P>
Do not malloc or free dnz and onz, that is handled internally by these routines
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatPreallocateFinalize.html#MatPreallocateFinalize">MatPreallocateFinalize</A>(), <A HREF="../Mat/MatPreallocateSet.html#MatPreallocateSet">MatPreallocateSet</A>(), <A HREF="../Mat/MatPreallocateSymmetricSet.html#MatPreallocateSymmetricSet">MatPreallocateSymmetricSet</A>(), <A HREF="../Mat/MatPreallocateInitialize.html#MatPreallocateInitialize">MatPreallocateInitialize</A>(),
<BR><A HREF="../Mat/MatPreallocateInitialize.html#MatPreallocateInitialize">MatPreallocateInitialize</A>(), <A HREF="../Mat/MatPreallocateSymmetricSetLocal.html#MatPreallocateSymmetricSetLocal">MatPreallocateSymmetricSetLocal</A>()
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/../../include/petscmat.h.html#MatPreallocateSetLocal">src/mat/../../include/petscmat.h</A>
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