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138 lines
4.9 KiB
HTML
138 lines
4.9 KiB
HTML
17 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<!--Converted with LaTeX2HTML 2002-2-1 (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>Prerequisites</TITLE>
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<A NAME="tex2html141"
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<A NAME="tex2html139"
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<BR>
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<B> Next:</B> <A NAME="tex2html142"
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HREF="node7.html">Optional third party libraries</A>
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<B> Up:</B> <A NAME="tex2html138"
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HREF="node5.html">Configuring and Building MLD2P4</A>
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<B> Previous:</B> <A NAME="tex2html132"
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HREF="node5.html">Configuring and Building MLD2P4</A>
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<B> <A NAME="tex2html140"
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HREF="node1.html">Contents</A></B>
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<BR>
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<BR>
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<!--End of Navigation Panel-->
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<H2><A NAME="SECTION00051000000000000000">
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Prerequisites</A>
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</H2>
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The following base libraries are needed:
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<DL>
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<DT><STRONG>BLAS</STRONG></DT>
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<DD>The Basic Linear Algebra subprograms. Many vendors provide
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optimized versions; if no vendor version is available for a given
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platform, the ATLAS software <code>http://www.netlib.org/atlas</code>
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may be employed. The reference BLAS from Netlib
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<code>http://www.netlib.org/blas</code> are meant to define the standard
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behaviour of the BLAS interface, so they not optimized for any
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particular plaftorm, and should only be used as a last
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resort. Note that BLAS computation form a relatively small part of
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the MLD2P4/PSBLAS computations; they are however critical when using
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preconditioners based on the UMFPACK or SuperLU third party
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libraries.
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</DD>
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<DT><STRONG>MPI</STRONG></DT>
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<DD>A version of MPI is available on most high performance
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computing system; we only require version 1.1.
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</DD>
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<DT><STRONG>BLACS</STRONG></DT>
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<DD>The Basic Linear Algebra Communication Subroutines are
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available in source form from <code>http://www.netlib.org/blacs</code>;
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some vendors include them in their parallel computing
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support libraries.
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</DD>
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</DL>
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<P>
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The MLD2P4 software requires PSBLAS version 2.3 (at least), available
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from <code>http://www.ce.uniroma2.it/psblas</code>; indeed, all the
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prerequisites listed so far are also prerequisites of PSBLAS. Please
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note that to build the MLD2P4 library it is necessary to get access to
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the source PSBLAS directory used to build the version under use; after
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the build process completes, only the compiled form of the library is
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necessary to build user applications.
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<P>
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Please note that all the libraries listed so fare (BLAS, MPI, BLACS,
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PSBLAS) must have Fortran interfaces compatible with the MLD2P4;
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usually this means that they should all be built with the same
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compiler.
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<P>
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<HR>
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<A NAME="tex2html141"
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HREF="node7.html">
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<A NAME="tex2html137"
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HREF="node5.html">
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<A NAME="tex2html131"
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HREF="node5.html">
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<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous"
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<A NAME="tex2html139"
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HREF="node1.html">
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<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents"
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SRC="file:/usr/share/latex2html/icons/contents.png"></A>
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<BR>
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<B> Next:</B> <A NAME="tex2html142"
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HREF="node7.html">Optional third party libraries</A>
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<B> Up:</B> <A NAME="tex2html138"
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HREF="node5.html">Configuring and Building MLD2P4</A>
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<B> Previous:</B> <A NAME="tex2html132"
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HREF="node5.html">Configuring and Building MLD2P4</A>
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<B> <A NAME="tex2html140"
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HREF="node1.html">Contents</A></B>
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<!--End of Navigation Panel-->
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<ADDRESS>
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Salvatore Filippone
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2008-07-22
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</ADDRESS>
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</BODY>
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</HTML>
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