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.
267 lines
7.3 KiB
HTML
267 lines
7.3 KiB
HTML
17 years ago
|
<!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>userhtml</TITLE>
|
||
|
|
<META NAME="description" CONTENT="userhtml">
|
||
|
|
<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="node1.html">
|
||
|
|
</HEAD>
|
||
|
|
|
||
|
|
<BODY >
|
||
|
|
<!--Navigation Panel-->
|
||
|
|
<A NAME="tex2html13"
|
||
|
|
HREF="node1.html">
|
||
|
|
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next"
|
||
|
|
SRC="file:/usr/share/latex2html/icons/next.png"></A>
|
||
|
|
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up"
|
||
|
|
SRC="file:/usr/share/latex2html/icons/up_g.png">
|
||
|
|
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous"
|
||
|
|
SRC="file:/usr/share/latex2html/icons/prev_g.png">
|
||
|
|
<A NAME="tex2html11"
|
||
|
|
HREF="node1.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="tex2html14"
|
||
|
|
HREF="node1.html">Contents</A>
|
||
|
|
<B> <A NAME="tex2html12"
|
||
|
|
HREF="node1.html">Contents</A></B>
|
||
|
|
<BR>
|
||
|
|
<BR>
|
||
|
|
<!--End of Navigation Panel-->
|
||
|
|
|
||
|
|
<P>
|
||
|
|
|
||
|
|
MLD2P4 User's and Reference Guidetitle
|
||
|
|
|
||
|
|
<BR>
|
||
|
|
<TABLE WIDTH="100%">
|
||
|
|
<TR><TD>
|
||
|
|
<DIV ALIGN="RIGHT">
|
||
|
|
<FONT SIZE="+4"><B>MLD2P4
|
||
|
|
<BR>
|
||
|
|
<BR>
|
||
|
|
User's and Reference Guide
|
||
|
|
</B></FONT>
|
||
|
|
<BR>
|
||
|
|
<BR>
|
||
|
|
<BR>
|
||
|
|
<BR><I><FONT SIZE="+2">A guide for the Multi-Level Domain Decomposition <BR>
|
||
|
|
<BR>
|
||
|
|
Parallel Preconditioners Package
|
||
|
|
based on PSBLAS</FONT></I>
|
||
|
|
|
||
|
|
</DIV></TD></TR>
|
||
|
|
</TABLE>
|
||
|
|
|
||
|
|
<P>
|
||
|
|
<BR>
|
||
|
|
<TABLE WIDTH="100%">
|
||
|
|
<TR><TD>
|
||
|
|
<DIV ALIGN="RIGHT">
|
||
|
|
<FONT SIZE="+1"><B>Pasqua D'Ambra</B></FONT>
|
||
|
|
<BR><FONT SIZE="+1">ICAR-CNR, Naples, Italy
|
||
|
|
<BR>
|
||
|
|
<BR>
|
||
|
|
<BR>
|
||
|
|
<BR><FONT SIZE="+1"><B>Daniela di Serafino</B></FONT>
|
||
|
|
<BR><FONT SIZE="+1">Second University of Naples, Italy
|
||
|
|
<BR>
|
||
|
|
<BR>
|
||
|
|
<BR>
|
||
|
|
<BR><FONT SIZE="+1"><B>Salvatore Filippone</B></FONT>
|
||
|
|
<BR><FONT SIZE="+1">University of Rome ``Tor Vergata'', Italy
|
||
|
|
|
||
|
|
</FONT></FONT></FONT></DIV></TD></TR>
|
||
|
|
</TABLE>
|
||
|
|
|
||
|
|
<P>
|
||
|
|
<BR>
|
||
|
|
<TABLE WIDTH="100%">
|
||
|
|
<TR><TD>
|
||
|
|
<DIV ALIGN="RIGHT">
|
||
|
|
<FONT SIZE="+1">Software version: 1.0
|
||
|
|
<BR>
|
||
|
|
July 22, 2008
|
||
|
|
|
||
|
|
</FONT></DIV></TD></TR>
|
||
|
|
</TABLE>
|
||
|
|
|
||
|
|
<P>
|
||
|
|
<BR>
|
||
|
|
|
||
|
|
<BR>
|
||
|
|
|
||
|
|
<P>
|
||
|
|
|
||
|
|
<P>
|
||
|
|
|
||
|
|
<H3>Abstract:</H3>
|
||
|
|
<DIV>
|
||
|
|
MLD2P4 (M<SMALL>ULTI-</SMALL>L<SMALL>EVEL </SMALL>D<SMALL>OMAIN </SMALL>D<SMALL>ECOMPOSITION </SMALL>P<SMALL>ARALLEL </SMALL>P<SMALL>RECONDITIONERS </SMALL>P<SMALL>ACKAGE BASED ON
|
||
|
|
</SMALL>PSBLAS) is a package of parallel algebraic multi-level preconditioners.
|
||
|
|
It implements various versions of one-level additive and of multi-level additive
|
||
|
|
and hybrid Schwarz algorithms. In the multi-level case, a purely algebraic approach
|
||
|
|
is applied to generate coarse-level corrections, so that no geometric background is needed
|
||
|
|
concerning the matrix to be preconditioned. The matrix is required to be square, real
|
||
|
|
or complex, with a symmetric sparsity pattern.
|
||
|
|
|
||
|
|
<P>
|
||
|
|
MLD2P4 has been designed to provide scalable and easy-to-use preconditioners in the
|
||
|
|
context of the PSBLAS (Parallel Sparse Basic Linear Algebra Subprograms)
|
||
|
|
computational framework and can be used in conjuction with the Krylov solvers
|
||
|
|
available in this framework. MLD2P4 enables the user to easily specify different aspects
|
||
|
|
of a generic algebraic multilevel Schwarz preconditioner, thus allowing to search
|
||
|
|
for the ``best'' preconditioner for the problem at hand.
|
||
|
|
|
||
|
|
<P>
|
||
|
|
The package has been designed employing object-oriented techniques,
|
||
|
|
using Fortran 95, with interfaces to additional third party libraries
|
||
|
|
such as UMFPACK, SuperLU and SuperLU_Dist, that
|
||
|
|
can be exploited in building multi-level preconditioners. The parallel
|
||
|
|
implementation is based on a Single Program Multiple Data (SPMD)
|
||
|
|
paradigm for distributed-memory architectures; the inter-process data
|
||
|
|
communication is based on MPI and is managed mainly through PSBLAS.
|
||
|
|
|
||
|
|
<P>
|
||
|
|
This guide provides a brief description of the functionalities and
|
||
|
|
the user interface of MLD2P4.
|
||
|
|
</DIV>
|
||
|
|
<P>
|
||
|
|
|
||
|
|
<P>
|
||
|
|
|
||
|
|
<BR><HR>
|
||
|
|
<!--Table of Child-Links-->
|
||
|
|
<A NAME="CHILD_LINKS"></A>
|
||
|
|
|
||
|
|
<UL>
|
||
|
|
<LI><A NAME="tex2html15"
|
||
|
|
HREF="node1.html">Contents</A>
|
||
|
|
<LI><A NAME="tex2html16"
|
||
|
|
HREF="node2.html">General Overview</A>
|
||
|
|
<LI><A NAME="tex2html17"
|
||
|
|
HREF="node3.html">Notational Conventions</A>
|
||
|
|
<LI><A NAME="tex2html18"
|
||
|
|
HREF="node4.html">Code Distribution</A>
|
||
|
|
<LI><A NAME="tex2html19"
|
||
|
|
HREF="node5.html">Configuring and Building MLD2P4</A>
|
||
|
|
<UL>
|
||
|
|
<LI><A NAME="tex2html20"
|
||
|
|
HREF="node6.html">Prerequisites</A>
|
||
|
|
<LI><A NAME="tex2html21"
|
||
|
|
HREF="node7.html">Optional third party libraries</A>
|
||
|
|
<LI><A NAME="tex2html22"
|
||
|
|
HREF="node8.html">Configuration options</A>
|
||
|
|
<LI><A NAME="tex2html23"
|
||
|
|
HREF="node9.html">Example and test programs</A>
|
||
|
|
</UL>
|
||
|
|
<BR>
|
||
|
|
<LI><A NAME="tex2html24"
|
||
|
|
HREF="node10.html">Multi-level Domain Decomposition Background</A>
|
||
|
|
<UL>
|
||
|
|
<LI><A NAME="tex2html25"
|
||
|
|
HREF="node11.html">Multi-level Schwarz Preconditioners</A>
|
||
|
|
<LI><A NAME="tex2html26"
|
||
|
|
HREF="node12.html">Smoothed Aggregation</A>
|
||
|
|
</UL>
|
||
|
|
<BR>
|
||
|
|
<LI><A NAME="tex2html27"
|
||
|
|
HREF="node13.html">Getting Started</A>
|
||
|
|
<UL>
|
||
|
|
<LI><A NAME="tex2html28"
|
||
|
|
HREF="node14.html">Examples</A>
|
||
|
|
</UL>
|
||
|
|
<BR>
|
||
|
|
<LI><A NAME="tex2html29"
|
||
|
|
HREF="node15.html">User Interface</A>
|
||
|
|
<UL>
|
||
|
|
<LI><A NAME="tex2html30"
|
||
|
|
HREF="node16.html">Subroutine mld_precinit</A>
|
||
|
|
<UL>
|
||
|
|
<LI><A NAME="tex2html31"
|
||
|
|
HREF="node17.html">Arguments</A>
|
||
|
|
</UL>
|
||
|
|
<LI><A NAME="tex2html32"
|
||
|
|
HREF="node18.html">Subroutine mld_precset</A>
|
||
|
|
<UL>
|
||
|
|
<LI><A NAME="tex2html33"
|
||
|
|
HREF="node19.html">Arguments</A>
|
||
|
|
</UL>
|
||
|
|
<LI><A NAME="tex2html34"
|
||
|
|
HREF="node20.html">Subroutine mld_precbld</A>
|
||
|
|
<UL>
|
||
|
|
<LI><A NAME="tex2html35"
|
||
|
|
HREF="node21.html">Arguments</A>
|
||
|
|
</UL>
|
||
|
|
<LI><A NAME="tex2html36"
|
||
|
|
HREF="node22.html">Subroutine mld_precaply</A>
|
||
|
|
<UL>
|
||
|
|
<LI><A NAME="tex2html37"
|
||
|
|
HREF="node23.html">Arguments</A>
|
||
|
|
</UL>
|
||
|
|
<LI><A NAME="tex2html38"
|
||
|
|
HREF="node24.html">Subroutine mld_precfree</A>
|
||
|
|
<UL>
|
||
|
|
<LI><A NAME="tex2html39"
|
||
|
|
HREF="node25.html">Arguments</A>
|
||
|
|
</UL>
|
||
|
|
<LI><A NAME="tex2html40"
|
||
|
|
HREF="node26.html">Subroutine mld_precdescr</A>
|
||
|
|
<UL>
|
||
|
|
<LI><A NAME="tex2html41"
|
||
|
|
HREF="node27.html">Arguments</A>
|
||
|
|
</UL>
|
||
|
|
</UL>
|
||
|
|
<BR>
|
||
|
|
<LI><A NAME="tex2html42"
|
||
|
|
HREF="node28.html">Error Handling</A>
|
||
|
|
<LI><A NAME="tex2html43"
|
||
|
|
HREF="node29.html">License</A>
|
||
|
|
<LI><A NAME="tex2html44"
|
||
|
|
HREF="node30.html">Bibliography</A>
|
||
|
|
<LI><A NAME="tex2html45"
|
||
|
|
HREF="node31.html">About this document ...</A>
|
||
|
|
</UL>
|
||
|
|
<!--End of Table of Child-Links-->
|
||
|
|
<HR>
|
||
|
|
<!--Navigation Panel-->
|
||
|
|
<A NAME="tex2html13"
|
||
|
|
HREF="node1.html">
|
||
|
|
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next"
|
||
|
|
SRC="file:/usr/share/latex2html/icons/next.png"></A>
|
||
|
|
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up"
|
||
|
|
SRC="file:/usr/share/latex2html/icons/up_g.png">
|
||
|
|
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous"
|
||
|
|
SRC="file:/usr/share/latex2html/icons/prev_g.png">
|
||
|
|
<A NAME="tex2html11"
|
||
|
|
HREF="node1.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="tex2html14"
|
||
|
|
HREF="node1.html">Contents</A>
|
||
|
|
<B> <A NAME="tex2html12"
|
||
|
|
HREF="node1.html">Contents</A></B>
|
||
|
|
<!--End of Navigation Panel-->
|
||
|
|
<ADDRESS>
|
||
|
|
Salvatore Filippone
|
||
|
|
2008-07-22
|
||
|
|
</ADDRESS>
|
||
|
|
</BODY>
|
||
|
|
</HTML>
|