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.
170 lines
6.1 KiB
HTML
170 lines
6.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
|
|
|
|
<!--Converted with LaTeX2HTML 2002-2-1 (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>User Interface</TITLE>
|
|
<META NAME="description" CONTENT="User Interface">
|
|
<META NAME="keywords" CONTENT="userhtml">
|
|
<META NAME="resource-type" CONTENT="document">
|
|
<META NAME="distribution" CONTENT="global">
|
|
|
|
<META NAME="Generator" CONTENT="LaTeX2HTML v2002-2-1">
|
|
<META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css">
|
|
|
|
<LINK REL="STYLESHEET" HREF="userhtml.css">
|
|
|
|
<LINK REL="next" HREF="node22.html">
|
|
<LINK REL="previous" HREF="node13.html">
|
|
<LINK REL="up" HREF="userhtml.html">
|
|
<LINK REL="next" HREF="node16.html">
|
|
</HEAD>
|
|
|
|
<BODY >
|
|
<!--Navigation Panel-->
|
|
<A NAME="tex2html239"
|
|
HREF="node16.html">
|
|
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next"
|
|
SRC="file:/usr/share/latex2html/icons/next.png"></A>
|
|
<A NAME="tex2html235"
|
|
HREF="userhtml.html">
|
|
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up"
|
|
SRC="file:/usr/share/latex2html/icons/up.png"></A>
|
|
<A NAME="tex2html229"
|
|
HREF="node14.html">
|
|
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous"
|
|
SRC="file:/usr/share/latex2html/icons/prev.png"></A>
|
|
<A NAME="tex2html237"
|
|
HREF="node2.html">
|
|
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents"
|
|
SRC="file:/usr/share/latex2html/icons/contents.png"></A>
|
|
<BR>
|
|
<B> Next:</B> <A NAME="tex2html240"
|
|
HREF="node16.html">Subroutine mld_precinit</A>
|
|
<B> Up:</B> <A NAME="tex2html236"
|
|
HREF="userhtml.html">userhtml</A>
|
|
<B> Previous:</B> <A NAME="tex2html230"
|
|
HREF="node14.html">Examples</A>
|
|
<B> <A NAME="tex2html238"
|
|
HREF="node2.html">Contents</A></B>
|
|
<BR>
|
|
<BR>
|
|
<!--End of Navigation Panel-->
|
|
|
|
<H1><A NAME="SECTION00080000000000000000"></A><A NAME="sec:userinterface"></A>
|
|
<BR>
|
|
User Interface
|
|
</H1>
|
|
|
|
<P>
|
|
The basic user interface of MLD2P4 consists of six routines. The four routines <code>mld_</code> <code>precinit</code>,
|
|
<code>mld_precset</code>, <code>mld_precbld</code> and <code>mld_precaply</code> encapsulate all the functionalities
|
|
for the setup and the application of any one-level and multi-level
|
|
preconditioner implemented in the package.
|
|
The routine <code>mld_precfree</code> deallocates the preconditioner data structure, while
|
|
<code>mld_precdescr</code> prints a description of the preconditioner setup by the user.
|
|
|
|
<P>
|
|
For each routine, the same user interface is overloaded with
|
|
respect to the real/complex case and the single/double precision;
|
|
arguments with appropriate data types must be passed to the routine,
|
|
i.e.
|
|
|
|
<UL>
|
|
<LI>the sparse matrix data structure, containing the matrix to be
|
|
preconditioned, must be of type <code>mld_</code><I>x</I><code>spmat_type</code>
|
|
with <I>x</I> = <code>s</code> for real single precision, <I>x</I> = <code>d</code>
|
|
for real double precision, <I>x</I> = <code>c</code> for complex single precision,
|
|
<I>x</I> = <code>z</code> for complex double precision;
|
|
</LI>
|
|
<LI>the preconditioner data structure must be of type
|
|
<code>mld_</code><I>x</I><code>prec_type</code>, with <I>x</I> =
|
|
<code>s</code>, <code>d</code>, <code>c</code>, <code>z</code>, according to the sparse
|
|
matrix data structure;
|
|
</LI>
|
|
<LI>the arrays containing the vectors <IMG
|
|
WIDTH="13" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
|
|
SRC="img21.png"
|
|
ALT="$v$"> and <IMG
|
|
WIDTH="17" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
|
|
SRC="img87.png"
|
|
ALT="$w$"> involved in
|
|
the preconditioner application <IMG
|
|
WIDTH="87" HEIGHT="21" ALIGN="BOTTOM" BORDER="0"
|
|
SRC="img60.png"
|
|
ALT="$w=M^{-1}v$"> must be of type
|
|
<I>type</I><code>(</code><I>kind_parameter</I><code>)</code>, with <I>type</I> =
|
|
<code>real</code>, <code>complex</code> and <I>kind_parameter</I> = <code>kind(1.e0)</code>,
|
|
<code>kind(1.d0)</code>, according to the sparse matrix and preconditioner
|
|
data structure; note that the PSBLAS module <code>psb_base_mod</code>
|
|
provides the constants <code>psb_spk_</code>
|
|
= <code>kind(1.e0)</code> and <code>psb_dpk_</code> = <code>kind(1.d0)</code>;
|
|
</LI>
|
|
<LI>real parameters defining the preconditioner must be declared
|
|
according to the precision of the sparse matrix and preconditioner
|
|
data structures (see Section <A HREF="node17.html#sec:precset">6.2</A>).
|
|
</LI>
|
|
</UL>
|
|
A description of each routine is given in the remainder of this section.
|
|
|
|
<P>
|
|
|
|
<P>
|
|
<BR><HR>
|
|
<!--Table of Child-Links-->
|
|
<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
|
|
|
|
<UL>
|
|
<LI><A NAME="tex2html241"
|
|
HREF="node16.html">Subroutine mld_precinit</A>
|
|
<LI><A NAME="tex2html242"
|
|
HREF="node17.html">Subroutine mld_precset</A>
|
|
<LI><A NAME="tex2html243"
|
|
HREF="node18.html">Subroutine mld_precbld</A>
|
|
<LI><A NAME="tex2html244"
|
|
HREF="node19.html">Subroutine mld_precaply</A>
|
|
<LI><A NAME="tex2html245"
|
|
HREF="node20.html">Subroutine mld_precfree</A>
|
|
<LI><A NAME="tex2html246"
|
|
HREF="node21.html">Subroutine mld_precdescr</A>
|
|
</UL>
|
|
<!--End of Table of Child-Links-->
|
|
<HR>
|
|
<!--Navigation Panel-->
|
|
<A NAME="tex2html239"
|
|
HREF="node16.html">
|
|
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next"
|
|
SRC="file:/usr/share/latex2html/icons/next.png"></A>
|
|
<A NAME="tex2html235"
|
|
HREF="userhtml.html">
|
|
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up"
|
|
SRC="file:/usr/share/latex2html/icons/up.png"></A>
|
|
<A NAME="tex2html229"
|
|
HREF="node14.html">
|
|
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous"
|
|
SRC="file:/usr/share/latex2html/icons/prev.png"></A>
|
|
<A NAME="tex2html237"
|
|
HREF="node2.html">
|
|
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents"
|
|
SRC="file:/usr/share/latex2html/icons/contents.png"></A>
|
|
<BR>
|
|
<B> Next:</B> <A NAME="tex2html240"
|
|
HREF="node16.html">Subroutine mld_precinit</A>
|
|
<B> Up:</B> <A NAME="tex2html236"
|
|
HREF="userhtml.html">userhtml</A>
|
|
<B> Previous:</B> <A NAME="tex2html230"
|
|
HREF="node14.html">Examples</A>
|
|
<B> <A NAME="tex2html238"
|
|
HREF="node2.html">Contents</A></B>
|
|
<!--End of Navigation Panel-->
|
|
<ADDRESS>
|
|
Salvatore Filippone
|
|
2008-07-24
|
|
</ADDRESS>
|
|
</BODY>
|
|
</HTML>
|