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.
150 lines
4.7 KiB
HTML
150 lines
4.7 KiB
HTML
<!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>Data Structures</TITLE>
|
|
<META NAME="description" CONTENT="Data Structures">
|
|
<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="node25.html">
|
|
<LINK REL="previous" HREF="node3.html">
|
|
<LINK REL="up" HREF="userhtml.html">
|
|
<LINK REL="next" HREF="node9.html">
|
|
</HEAD>
|
|
|
|
<BODY >
|
|
<!--Navigation Panel-->
|
|
<A NAME="tex2html253"
|
|
HREF="node9.html">
|
|
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
|
|
<A NAME="tex2html249"
|
|
HREF="userhtml.html">
|
|
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
|
|
<A NAME="tex2html243"
|
|
HREF="node7.html">
|
|
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
|
|
<A NAME="tex2html251"
|
|
HREF="node1.html">
|
|
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
|
|
<BR>
|
|
<B> Next:</B> <A NAME="tex2html254"
|
|
HREF="node9.html">Descriptor data structure</A>
|
|
<B> Up:</B> <A NAME="tex2html250"
|
|
HREF="userhtml.html">userhtml</A>
|
|
<B> Previous:</B> <A NAME="tex2html244"
|
|
HREF="node7.html">Programming model</A>
|
|
<B> <A NAME="tex2html252"
|
|
HREF="node1.html">Contents</A></B>
|
|
<BR>
|
|
<BR>
|
|
<!--End of Navigation Panel-->
|
|
|
|
<H1><A NAME="SECTION00040000000000000000"></A>
|
|
<A NAME="sec:datastruct"></A>
|
|
<BR>
|
|
Data Structures
|
|
</H1>
|
|
|
|
<P>
|
|
In this chapter we illustrate the data structures used for definition of
|
|
routines interfaces. They include data structures for sparse matrices,
|
|
communication descriptors and preconditioners.
|
|
<P>
|
|
All the data types and the basic subroutine interfaces are defined in
|
|
the module <code>psb_base_mod</code>; this will have to be included by every
|
|
user subroutine that makes use of the library.
|
|
|
|
<P>
|
|
Real and complex data types are parametrized with a kind type defined
|
|
in the library as follows:
|
|
<DL>
|
|
<DT><STRONG>psb_spk_</STRONG></DT>
|
|
<DD>Kind parameter for short precision real and complex
|
|
data; corresponds to a <code>REAL</code> declaration and is
|
|
normally 4 bytes.
|
|
</DD>
|
|
<DT><STRONG>psb_dpk_</STRONG></DT>
|
|
<DD>Kind parameter for long precision real and complex
|
|
data; corresponds to a <code>DOUBLE PRECISION</code> declaration and is
|
|
normally 8 bytes.
|
|
</DD>
|
|
</DL>
|
|
Moreover, the library defines a long integer kind
|
|
<code>psb_long_int_k_</code> which normally corresponds to 64-bit integers;
|
|
it is only used for the <code>psb_sizeof</code> utility.
|
|
|
|
<P>
|
|
<BR><HR>
|
|
<!--Table of Child-Links-->
|
|
<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
|
|
|
|
<UL>
|
|
<LI><A NAME="tex2html255"
|
|
HREF="node9.html">Descriptor data structure</A>
|
|
<UL>
|
|
<LI><A NAME="tex2html256"
|
|
HREF="node10.html">Named Constants</A>
|
|
</UL>
|
|
<BR>
|
|
<LI><A NAME="tex2html257"
|
|
HREF="node11.html">Sparse Matrix data structure</A>
|
|
<UL>
|
|
<LI><A NAME="tex2html258"
|
|
HREF="node12.html">Named Constants</A>
|
|
</UL>
|
|
<BR>
|
|
<LI><A NAME="tex2html259"
|
|
HREF="node13.html">Preconditioner data structure</A>
|
|
<LI><A NAME="tex2html260"
|
|
HREF="node14.html">Data structure query routines</A>
|
|
<UL>
|
|
<LI><A NAME="tex2html261"
|
|
HREF="node15.html">psb_cd_get_local_rows -- Get number of local rows</A>
|
|
<LI><A NAME="tex2html262"
|
|
HREF="node16.html">psb_cd_get_local_cols -- Get number of local cols</A>
|
|
<LI><A NAME="tex2html263"
|
|
HREF="node17.html">psb_cd_get_global_rows -- Get number of global rows</A>
|
|
<LI><A NAME="tex2html264"
|
|
HREF="node18.html">psb_cd_get_global_cols -- Get number of global cols</A>
|
|
</UL>
|
|
<BR>
|
|
<LI><A NAME="tex2html265"
|
|
HREF="node19.html">
|
|
<DIV ALIGN="LEFT">
|
|
psb_cd_get_context--Get communication context
|
|
</DIV></A>
|
|
<UL>
|
|
<LI><A NAME="tex2html266"
|
|
HREF="node20.html">psb_cd_get_large_threshold -- Get threshold for
|
|
index mapping switch</A>
|
|
<LI><A NAME="tex2html267"
|
|
HREF="node21.html">psb_cd_set_large_threshold -- Set threshold for
|
|
index mapping switch</A>
|
|
<LI><A NAME="tex2html268"
|
|
HREF="node22.html">psb_sp_get_nrows -- Get number of rows in a sparse
|
|
matrix</A>
|
|
<LI><A NAME="tex2html269"
|
|
HREF="node23.html">psb_sp_get_ncols -- Get number of columns in a
|
|
sparse matrix</A>
|
|
<LI><A NAME="tex2html270"
|
|
HREF="node24.html">psb_sp_get_nnzeros -- Get number of nonzero elements
|
|
in a sparse matrix</A>
|
|
</UL></UL>
|
|
<!--End of Table of Child-Links-->
|
|
<BR><HR>
|
|
|
|
</BODY>
|
|
</HTML>
|