<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <!--Converted with LaTeX2HTML 2008 (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>Library contents</TITLE> <META NAME="description" CONTENT="Library contents"> <META NAME="keywords" CONTENT="userhtml"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META NAME="Generator" CONTENT="LaTeX2HTML v2008"> <META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> <LINK REL="STYLESHEET" HREF="userhtml.css"> <LINK REL="next" HREF="node6.html"> <LINK REL="previous" HREF="node4.html"> <LINK REL="up" HREF="node3.html"> <LINK REL="next" HREF="node6.html"> </HEAD> <BODY > <!--Navigation Panel--> <A NAME="tex2html239" HREF="node6.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html235" HREF="node3.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html229" HREF="node4.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html237" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html240" HREF="node6.html">Application structure</A> <B> Up:</B> <A NAME="tex2html236" HREF="node3.html">General overview</A> <B> Previous:</B> <A NAME="tex2html230" HREF="node4.html">Basic Nomenclature</A> <B> <A NAME="tex2html238" HREF="node1.html">Contents</A></B> <BR> <BR> <!--End of Navigation Panel--> <H2><A NAME="SECTION00032000000000000000"> Library contents</A> </H2> <P> The PSBLAS library consists of various classes of subroutines: <DL> <DT><STRONG>Computational routines</STRONG></DT> <DD>comprising: <UL> <LI>Sparse matrix by dense matrix product; </LI> <LI>Sparse triangular systems solution for block diagonal matrices; </LI> <LI>Vector and matrix norms; </LI> <LI>Dense matrix sums; </LI> <LI>Dot products. </LI> </UL> </DD> <DT><STRONG>Communication routines</STRONG></DT> <DD>handling halo and overlap communications; </DD> <DT><STRONG>Data management and auxiliary routines</STRONG></DT> <DD>including: <UL> <LI>Parallel environment management </LI> <LI>Communication descriptors allocation; </LI> <LI>Dense and sparse matrix allocation; </LI> <LI>Dense and sparse matrix build and update; </LI> <LI>Sparse matrix and data distribution preprocessing. </LI> </UL> </DD> <DT><STRONG>Preconditioner routines</STRONG></DT> <DD> </DD> <DT><STRONG>Iterative methods</STRONG></DT> <DD>a subset of Krylov subspace iterative methods </DD> </DL> The following naming scheme has been adopted for all the symbols internally defined in the PSBLAS software package: <UL> <LI>all symbols (i.e. subroutine names, data types...) are prefixed by <code>psb_</code> </LI> <LI>all data type names are suffixed by <code>_type</code> </LI> <LI>all constants are suffixed by <code>_</code> </LI> <LI>all top-level subroutine names follow the rule <code>psb_xxname</code> where <code>xx</code> can be either: <UL> <LI><code>ge</code>: the routine is related to dense data, </LI> <LI><code>sp</code>: the routine is related to sparse data, </LI> <LI><code>cd</code>: the routine is related to communication descriptor (see <A HREF="node9.html#sec:datastruct">3</A>). </LI> </UL> For example the <code>psb_geins</code>, <code>psb_spins</code> and <code>psb_cdins</code> perform the same action (see <A HREF="node58.html#sec:toolsrout">6</A>) on dense matrices, sparse matrices and communication descriptors respectively. Interface overloading allows the usage of the same subroutine names for both real and complex data. </LI> </UL> In the description of the subroutines, arguments or argument entries are classified as: <DL> <DT><STRONG>global</STRONG></DT> <DD>For input arguments, the value must be the same on all processes participating in the subroutine call; for output arguments the value is guaranteed to be the same. </DD> <DT><STRONG>local</STRONG></DT> <DD>Each process has its own value(s) independently. </DD> </DL> To finish our general description, we define a version string with the constant <BR><P></P> <DIV ALIGN="CENTER"> <!-- MATH \begin{displaymath} \verb|psb_version_string_| \end{displaymath} --> <IMG WIDTH="158" HEIGHT="28" BORDER="0" SRC="img14.png" ALT="\begin{displaymath}\verb\vert psb_version_string_\vert\end{displaymath}"> </DIV> <BR CLEAR="ALL"> <P></P> whose current value is <code>3.0.0</code> <P> <HR> <!--Navigation Panel--> <A NAME="tex2html239" HREF="node6.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A> <A NAME="tex2html235" HREF="node3.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A> <A NAME="tex2html229" HREF="node4.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A> <A NAME="tex2html237" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html240" HREF="node6.html">Application structure</A> <B> Up:</B> <A NAME="tex2html236" HREF="node3.html">General overview</A> <B> Previous:</B> <A NAME="tex2html230" HREF="node4.html">Basic Nomenclature</A> <B> <A NAME="tex2html238" HREF="node1.html">Contents</A></B> <!--End of Navigation Panel--> </BODY> </HTML>