1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD> <link rel="canonical" href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/DM/DMADDAMatSetValues.html" />
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<TITLE>DMADDAMatSetValues</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="DMADDAMatSetValues"><H1>DMADDAMatSetValues</H1></A>
Inserts or adds a block of values into a matrix. The values are indexed geometrically with the help of the ADDA data structure. 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 ADDAMatSetValues() have been completed.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscdmadda.h"
PetscErrorCode DMADDAMatSetValues(Mat mat, DM dmm, PetscInt m, const ADDAIdx idxm[],DM dmn, PetscInt n, const ADDAIdx idxn[],const PetscScalar v[], 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>mat </B></TD><TD>- the matrix
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>addam </B></TD><TD>- the ADDA geometry information for the rows
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>m </B></TD><TD>- the number of rows
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>idxm </B></TD><TD>- the row indices, each of the a proper ADDAIdx
+ addan - the ADDA geometry information for the columns
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>n </B></TD><TD>- the number of columns
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>idxn </B></TD><TD>- the column indices, each of the a proper ADDAIdx
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>v </B></TD><TD>- a logically two-dimensional array of values of size m*n
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>addv </B></TD><TD>- either <A HREF="../Sys/ADD_VALUES.html#ADD_VALUES">ADD_VALUES</A> or <A HREF="../Sys/INSERT_VALUES.html#INSERT_VALUES">INSERT_VALUES</A>, where
<A HREF="../Sys/ADD_VALUES.html#ADD_VALUES">ADD_VALUES</A> adds values to any existing entries, and
<A HREF="../Sys/INSERT_VALUES.html#INSERT_VALUES">INSERT_VALUES</A> replaces existing entries with new values
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
By default the values, v, are row-oriented and unsorted.
See <A HREF="../Mat/MatSetOption.html#MatSetOption">MatSetOption</A>() for other options.
<P>
Calls to ADDAMatSetValues() (and <A HREF="../Mat/MatSetValues.html#MatSetValues">MatSetValues</A>()) with the <A HREF="../Sys/INSERT_VALUES.html#INSERT_VALUES">INSERT_VALUES</A> and <A HREF="../Sys/ADD_VALUES.html#ADD_VALUES">ADD_VALUES</A>
options cannot be mixed without intervening calls to the assembly
routines.
<P>
<H3><FONT COLOR="#CC3333">Efficiency Alert</FONT></H3>
The routine ADDAMatSetValuesBlocked() may offer much better efficiency
for users of block sparse formats (<A HREF="../Mat/MATSEQBAIJ.html#MATSEQBAIJ">MATSEQBAIJ</A> and <A HREF="../Mat/MATMPIBAIJ.html#MATMPIBAIJ">MATMPIBAIJ</A>).
<P>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatSetOption.html#MatSetOption">MatSetOption</A>(), <A HREF="../Mat/MatAssemblyBegin.html#MatAssemblyBegin">MatAssemblyBegin</A>(), <A HREF="../Mat/MatAssemblyEnd.html#MatAssemblyEnd">MatAssemblyEnd</A>(), <A HREF="../Mat/MatSetValues.html#MatSetValues">MatSetValues</A>(), ADDAMatSetValuesBlocked(),
<BR><A HREF="../Sys/InsertMode.html#InsertMode">InsertMode</A>, <A HREF="../Sys/INSERT_VALUES.html#INSERT_VALUES">INSERT_VALUES</A>, <A HREF="../Sys/ADD_VALUES.html#ADD_VALUES">ADD_VALUES</A>
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/dm/impls/adda/adda.c.html#DMADDAMatSetValues">src/dm/impls/adda/adda.c</A>
<BR><A HREF="./index.html">Index of all DM routines</A>
<BR><A HREF="../../index.html">Table of Contents for all manual pages</A>
<BR><A HREF="../singleindex.html">Index of all manual pages</A>
<P><H3><FONT COLOR="#CC3333">Examples</FONT></H3>
<A HREF="../../../src/ksp/ksp/examples/tutorials/ex40.c.html">src/ksp/ksp/examples/tutorials/ex40.c.html</A><BR>
</BODY></HTML>
|
