You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
2.8 KiB
HTML
94 lines
2.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
|
|
|
|
<!--Converted with LaTeX2HTML 2008 (1.71)
|
|
original version by: Nikos Drakos, CBLU, University of Leeds
|
|
* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
|
|
* with significant contributions from:
|
|
Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
|
|
<HTML>
|
|
<HEAD>
|
|
<TITLE>Preconditioner routines</TITLE>
|
|
<META NAME="description" CONTENT="Preconditioner routines">
|
|
<META NAME="keywords" CONTENT="userhtml">
|
|
<META NAME="resource-type" CONTENT="document">
|
|
<META NAME="distribution" CONTENT="global">
|
|
|
|
<META NAME="Generator" CONTENT="LaTeX2HTML v2008">
|
|
<META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css">
|
|
|
|
<LINK REL="STYLESHEET" HREF="userhtml.css">
|
|
|
|
<LINK REL="next" HREF="node106.html">
|
|
<LINK REL="previous" HREF="node95.html">
|
|
<LINK REL="up" HREF="userhtml.html">
|
|
<LINK REL="next" HREF="node102.html">
|
|
</HEAD>
|
|
|
|
<BODY >
|
|
<!--Navigation Panel-->
|
|
<A NAME="tex2html1448"
|
|
HREF="node102.html">
|
|
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
|
|
<A NAME="tex2html1444"
|
|
HREF="userhtml.html">
|
|
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
|
|
<A NAME="tex2html1438"
|
|
HREF="node100.html">
|
|
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
|
|
<A NAME="tex2html1446"
|
|
HREF="node1.html">
|
|
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
|
|
<BR>
|
|
<B> Next:</B> <A NAME="tex2html1449"
|
|
HREF="node102.html">psb_precinit Initialize</A>
|
|
<B> Up:</B> <A NAME="tex2html1445"
|
|
HREF="userhtml.html">userhtml</A>
|
|
<B> Previous:</B> <A NAME="tex2html1439"
|
|
HREF="node100.html">mm_mat_write Write</A>
|
|
<B> <A NAME="tex2html1447"
|
|
HREF="node1.html">Contents</A></B>
|
|
<BR>
|
|
<BR>
|
|
<!--End of Navigation Panel-->
|
|
|
|
<H1><A NAME="SECTION000110000000000000000"></A>
|
|
<A NAME="sec:precs"></A>
|
|
<BR>
|
|
Preconditioner routines
|
|
</H1>
|
|
|
|
<P>
|
|
<A NAME="sec:psprecs"></A>The base PSBLAS library contains the implementation of two simple
|
|
preconditioning techniques:
|
|
|
|
<UL>
|
|
<LI>Diagonal Scaling
|
|
</LI>
|
|
<LI>Block Jacobi with ILU(0) factorization
|
|
</LI>
|
|
</UL>
|
|
The supporting data type and subroutine interfaces are defined in the
|
|
module <code>psb_prec_mod</code>.
|
|
|
|
<P>
|
|
<BR><HR>
|
|
<!--Table of Child-Links-->
|
|
<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
|
|
|
|
<UL>
|
|
<LI><A NAME="tex2html1450"
|
|
HREF="node102.html">psb_precinit -- Initialize a preconditioner</A>
|
|
<LI><A NAME="tex2html1451"
|
|
HREF="node103.html">psb_precbld -- Builds a preconditioner</A>
|
|
<LI><A NAME="tex2html1452"
|
|
HREF="node104.html">psb_precaply -- Preconditioner application routine</A>
|
|
<LI><A NAME="tex2html1453"
|
|
HREF="node105.html">psb_precdescr -- Prints a description of current
|
|
preconditioner</A>
|
|
</UL>
|
|
<!--End of Table of Child-Links-->
|
|
<BR><HR>
|
|
|
|
</BODY>
|
|
</HTML>
|