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
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML3.2 EN">
<HTML>
<HEAD> <link rel="canonical" href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/PC/PCASMCreateSubdomains.html" />
<META NAME="GENERATOR" CONTENT="DOCTEXT">
<TITLE>PCASMCreateSubdomains</TITLE>
</HEAD>
<BODY BGCOLOR="FFFFFF">
<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.14.5 v3.14.5 docs/manualpages/PC/PCASMCreateSubdomains.html "><small>Report Typos and Errors</small></a></div>
<A NAME="PCASMCreateSubdomains"><H1>PCASMCreateSubdomains</H1></A>
Creates the index sets for the overlapping Schwarz preconditioner for a any problem on a general grid.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscpc.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../PC/PCASMCreateSubdomains.html#PCASMCreateSubdomains">PCASMCreateSubdomains</A>(<A HREF="../Mat/Mat.html#Mat">Mat</A> A, <A HREF="../Sys/PetscInt.html#PetscInt">PetscInt</A> n, <A HREF="../IS/IS.html#IS">IS</A>* outis[])
</PRE>
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>A </B></TD><TD>- The global matrix operator
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>n </B></TD><TD>- the number of local blocks
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>outis </B></TD><TD>- the array of index sets defining the subdomains
</TD></TR></TABLE>
<P>
<P>
Note: this generates nonoverlapping subdomains; the <A HREF="../PC/PCASM.html#PCASM">PCASM</A> will generate the overlap
from these if you use <A HREF="../PC/PCASMSetLocalSubdomains.html#PCASMSetLocalSubdomains">PCASMSetLocalSubdomains</A>()
<P>
In the Fortran version you must provide the array outis[] already allocated of length n.
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../PC/PCASMSetLocalSubdomains.html#PCASMSetLocalSubdomains">PCASMSetLocalSubdomains</A>(), <A HREF="../PC/PCASMDestroySubdomains.html#PCASMDestroySubdomains">PCASMDestroySubdomains</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>advanced<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/ksp/pc/impls/asm/asm.c.html#PCASMCreateSubdomains">src/ksp/pc/impls/asm/asm.c</A>
<BR><A HREF="./index.html">Index of all PC 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>
|
