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<!--Converted with LaTeX2HTML 2008 (1.71)
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original version by: Nikos Drakos, CBLU, University of Leeds
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* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
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* with significant contributions from:
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Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
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<HTML>
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<HEAD>
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<TITLE>Preconditioner routines</TITLE>
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<META NAME="description" CONTENT="Preconditioner routines">
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<B> Next:</B> <A NAME="tex2html1614"
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HREF="node113.html">psb_precinit Initialize</A>
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HREF="node111.html">mm_mat_write Write</A>
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<B> <A NAME="tex2html1612"
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HREF="node1.html">Contents</A></B>
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<H1><A NAME="SECTION000110000000000000000"></A>
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<A NAME="sec:precs"></A>
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<BR>
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Preconditioner routines
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</H1>
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<P>
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<A NAME="sec:psprecs"></A>The base PSBLAS library contains the implementation of two simple
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preconditioning techniques:
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<UL>
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<LI>Diagonal Scaling
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</LI>
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<LI>Block Jacobi with ILU(0) factorization
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</LI>
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</UL>
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The supporting data type and subroutine interfaces are defined in the
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module <code>psb_prec_mod</code>.
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<P>
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<BR><HR>
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<!--Table of Child-Links-->
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<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
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<UL>
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<LI><A NAME="tex2html1615"
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HREF="node113.html">psb_precinit -- Initialize a preconditioner</A>
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<LI><A NAME="tex2html1616"
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HREF="node114.html">psb_precbld -- Builds a preconditioner</A>
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<LI><A NAME="tex2html1617"
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HREF="node115.html">psb_precaply -- Preconditioner application routine</A>
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<LI><A NAME="tex2html1618"
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HREF="node116.html">psb_precdescr -- Prints a description of current
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preconditioner</A>
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</UL>
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