<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!--Converted with LaTeX2HTML 2018 (Released Feb 1, 2018) --> <HTML> <HEAD> <TITLE>Example and test programs</TITLE> <META NAME="description" CONTENT="Example and test programs"> <META NAME="keywords" CONTENT="userhtml"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META NAME="Generator" CONTENT="LaTeX2HTML v2018"> <META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> <LINK REL="STYLESHEET" HREF="userhtml.css"> <LINK REL="previous" HREF="node10.html"> <LINK REL="up" HREF="node6.html"> <LINK REL="next" HREF="node12.html"> </HEAD> <BODY > <DIV CLASS="navigation"><!--Navigation Panel--> <A NAME="tex2html222" HREF="node12.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html218" HREF="node6.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html214" HREF="node10.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html220" HREF="node2.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html223" HREF="node12.html">Multigrid Background</A> <B> Up:</B> <A NAME="tex2html219" HREF="node6.html">Configuring and Building MLD2P4</A> <B> Previous:</B> <A NAME="tex2html215" HREF="node10.html">Bug reporting</A> <B> <A NAME="tex2html221" HREF="node2.html">Contents</A></B> <BR> <BR></DIV> <!--End of Navigation Panel--> <H2><A NAME="SECTION00055000000000000000"></A><A NAME="sec:ex_and_test"></A> <BR> Example and test programs </H2><BIG CLASS="LARGE"><BIG CLASS="LARGE"><BIG CLASS="LARGE"> The package contains the <code>examples</code> and <code>tests</code> directories; both of them are further divided into <code>fileread</code> and <code>pdegen</code> subdirectories. Their purpose is as follows: </BIG></BIG></BIG><DL> <DT><STRONG><TT>examples</TT></STRONG></DT> <DD>contains a set of simple example programs with a predefined choice of preconditioners, selectable via integer values. These are intended to get an acquaintance with the multilevel preconditioners available in MLD2P4. </DD> <DT><STRONG><TT>tests</TT></STRONG></DT> <DD>contains a set of more sophisticated examples that will allow the user, via the input files in the <code>runs</code> subdirectories, to experiment with the full range of preconditioners implemented in the package. </DD> </DL><BIG CLASS="LARGE"><BIG CLASS="LARGE"><BIG CLASS="LARGE"> The <code>fileread</code> directories contain sample programs that read sparse matrices from files, according to the Matrix Market or the Harwell-Boeing storage format; the <code>pdegen</code> programs generate matrices in full parallel mode from the discretization of a sample partial differential equation. </BIG></BIG></BIG> <BR><HR> </BODY> </HTML>