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<TITLE>MatSetValuesBlockedLocal</TITLE>
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<A NAME="MatSetValuesBlockedLocal"><H1>MatSetValuesBlockedLocal</H1></A>
Inserts or adds values into certain locations of a matrix, using a local ordering of the nodes a block at a time.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
int MatSetValuesBlockedLocal(Mat mat,int nrow,const int irow[],int ncol,const int icol[],const PetscScalar y[],InsertMode addv)
</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>x </B></TD><TD>- the matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nrow, irow </B></TD><TD>- number of rows and their local indices
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ncol, icol </B></TD><TD>- number of columns and their local indices
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>y </B></TD><TD>- a logically two-dimensional array of values
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>addv </B></TD><TD>- either INSERT_VALUES or ADD_VALUES, where
ADD_VALUES adds values to any existing entries, and
INSERT_VALUES replaces existing entries with new values
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
Before calling <A HREF="../Mat/MatSetValuesBlockedLocal.html#MatSetValuesBlockedLocal">MatSetValuesBlockedLocal</A>(), the user must first set the
local-to-global mapping by calling <A HREF="../Mat/MatSetLocalToGlobalMappingBlock.html#MatSetLocalToGlobalMappingBlock">MatSetLocalToGlobalMappingBlock</A>(),
where the mapping MUST be set for matrix blocks, not for matrix elements.
<P>
Calls to <A HREF="../Mat/MatSetValuesBlockedLocal.html#MatSetValuesBlockedLocal">MatSetValuesBlockedLocal</A>() with the INSERT_VALUES and ADD_VALUES
options cannot be mixed without intervening calls to the assembly
routines.
<P>
These values may be cached, so <A HREF="../Mat/MatAssemblyBegin.html#MatAssemblyBegin">MatAssemblyBegin</A>() and <A HREF="../Mat/MatAssemblyEnd.html#MatAssemblyEnd">MatAssemblyEnd</A>()
MUST be called after all calls to <A HREF="../Mat/MatSetValuesBlockedLocal.html#MatSetValuesBlockedLocal">MatSetValuesBlockedLocal</A>() have been completed.
<P>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatAssemblyBegin.html#MatAssemblyBegin">MatAssemblyBegin</A>(), <A HREF="../Mat/MatAssemblyEnd.html#MatAssemblyEnd">MatAssemblyEnd</A>(), <A HREF="../Mat/MatSetValuesLocal.html#MatSetValuesLocal">MatSetValuesLocal</A>(), <A HREF="../Mat/MatSetLocalToGlobalMappingBlock.html#MatSetLocalToGlobalMappingBlock">MatSetLocalToGlobalMappingBlock</A>(), <A HREF="../Mat/MatSetValuesBlocked.html#MatSetValuesBlocked">MatSetValuesBlocked</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/mat/interface/matrix.c.html#MatSetValuesBlockedLocal">src/mat/interface/matrix.c</A>
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