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
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD> <link rel="canonical" href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/KSP/MatSchurComplementGetSubmatrices.html" />
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<TITLE>MatSchurComplementGetSubmatrices</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="MatSchurComplementGetSubmatrices"><H1>MatSchurComplementGetSubmatrices</H1></A>
Get the individual submatrices in the Schur complement
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscksp.h"
PetscErrorCode MatSchurComplementGetSubmatrices(Mat N,Mat *A,Mat *Ap,Mat *B,Mat *C,Mat *D)
</PRE>
Collective on <A HREF="../Mat/Mat.html#Mat">Mat</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>N </B></TD><TD>- the matrix obtained with <A HREF="../KSP/MatCreateSchurComplement.html#MatCreateSchurComplement">MatCreateSchurComplement</A>()
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>A,B,C,D </B></TD><TD>- the four parts of the original matrix (D is optional)
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Note</FONT></H3>
D is optional, and thus can be NULL
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatCreateNormal.html#MatCreateNormal">MatCreateNormal</A>(), <A HREF="../Mat/MatMult.html#MatMult">MatMult</A>(), <A HREF="../Mat/MatCreate.html#MatCreate">MatCreate</A>(), <A HREF="../KSP/MatSchurComplementGetKSP.html#MatSchurComplementGetKSP">MatSchurComplementGetKSP</A>(), <A HREF="../KSP/MatCreateSchurComplement.html#MatCreateSchurComplement">MatCreateSchurComplement</A>(), <A HREF="../KSP/MatSchurComplementUpdate.html#MatSchurComplementUpdate">MatSchurComplementUpdate</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>intermediate
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/ksp/ksp/utils/schurm.c.html#MatSchurComplementGetSubmatrices">src/ksp/ksp/utils/schurm.c</A>
<BR><A HREF="./index.html">Index of all KSP 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>
</BODY></HTML>
|
