1<?xml version="1.0" encoding="utf-8" ?> 2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 3<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> 4<head> 5<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 6<meta name="generator" content="Docutils 0.6: http://docutils.sourceforge.net/" /> 7<title>Parallel BGL Concept Distributed Vertex List Graph</title> 8<link rel="stylesheet" href="../../../../rst.css" type="text/css" /> 9</head> 10<body> 11<div class="document" id="logo-concept-distributed-vertex-list-graph"> 12<h1 class="title"><a class="reference external" href="http://www.osl.iu.edu/research/pbgl"><img align="middle" alt="Parallel BGL" class="align-middle" src="pbgl-logo.png" /></a> Concept Distributed Vertex List Graph</h1> 13 14<!-- Copyright (C) 2004-2008 The Trustees of Indiana University. 15Use, modification and distribution is subject to the Boost Software 16License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at 17http://www.boost.org/LICENSE_1_0.txt) --> 18<div class="contents topic" id="contents"> 19<p class="topic-title first">Contents</p> 20<ul class="simple"> 21<li><a class="reference internal" href="#description" id="id1">Description</a></li> 22<li><a class="reference internal" href="#notation" id="id2">Notation</a></li> 23<li><a class="reference internal" href="#refinement-of" id="id3">Refinement of</a></li> 24<li><a class="reference internal" href="#associated-types" id="id4">Associated types</a></li> 25<li><a class="reference internal" href="#valid-expressions" id="id5">Valid Expressions</a></li> 26<li><a class="reference internal" href="#models" id="id6">Models</a></li> 27</ul> 28</div> 29<div class="section" id="description"> 30<h1><a class="toc-backref" href="#id1">Description</a></h1> 31<p>A Distributed Vertex List Graph is a graph whose vertices are 32distributed across multiple processes or address spaces. The 33<tt class="docutils literal"><span class="pre">vertices</span></tt> and <tt class="docutils literal"><span class="pre">num_vertices</span></tt> functions retain the same 34signatures as in the <a class="reference external" href="http://www.boost.org/libs/graph/doc/VertexListGraph.html">Vertex List Graph</a> concept, but return only 35the local set (and size of the local set) of vertices.</p> 36</div> 37<div class="section" id="notation"> 38<h1><a class="toc-backref" href="#id2">Notation</a></h1> 39<dl class="docutils"> 40<dt>G</dt> 41<dd>A type that models the Distributed Vertex List Graph concept.</dd> 42<dt>g</dt> 43<dd>An object of type <tt class="docutils literal"><span class="pre">G</span></tt>.</dd> 44</dl> 45</div> 46<div class="section" id="refinement-of"> 47<h1><a class="toc-backref" href="#id3">Refinement of</a></h1> 48<blockquote> 49<ul class="simple"> 50<li><a class="reference external" href="http://www.boost.org/libs/graph/doc/Graph.html">Graph</a></li> 51</ul> 52</blockquote> 53</div> 54<div class="section" id="associated-types"> 55<h1><a class="toc-backref" href="#id4">Associated types</a></h1> 56<table border="1" class="docutils"> 57<colgroup> 58<col width="18%" /> 59<col width="44%" /> 60<col width="38%" /> 61</colgroup> 62<tbody valign="top"> 63<tr><td>Vertex 64descriptor type</td> 65<td><tt class="docutils literal"><span class="pre">graph_traits<G>::vertex_descriptor</span></tt></td> 66<td>Must model the 67<a class="reference external" href="GlobalDescriptor.html">Global Descriptor</a> concept.</td> 68</tr> 69<tr><td>Vertex iterator 70type</td> 71<td><tt class="docutils literal"><span class="pre">graph_traits<G>::vertex_iterator</span></tt></td> 72<td>Iterates over vertices stored 73locally. The value type must be 74<tt class="docutils literal"><span class="pre">vertex_descriptor</span></tt>.</td> 75</tr> 76<tr><td>Vertices size 77type</td> 78<td><tt class="docutils literal"><span class="pre">graph_traits<G>::vertices_size_type</span></tt></td> 79<td>The unsigned integral type used 80to store the number of vertices 81in the local subgraph.</td> 82</tr> 83</tbody> 84</table> 85</div> 86<div class="section" id="valid-expressions"> 87<h1><a class="toc-backref" href="#id5">Valid Expressions</a></h1> 88<table border="1" class="docutils"> 89<colgroup> 90<col width="17%" /> 91<col width="22%" /> 92<col width="23%" /> 93<col width="39%" /> 94</colgroup> 95<thead valign="bottom"> 96<tr><th class="head">Name</th> 97<th class="head">Expression</th> 98<th class="head">Type</th> 99<th class="head">Semantics</th> 100</tr> 101</thead> 102<tbody valign="top"> 103<tr><td>Local vertex set</td> 104<td><tt class="docutils literal"><span class="pre">vertices(g)</span></tt></td> 105<td><tt class="docutils literal"><span class="pre">std::pair<</span></tt> 106<tt class="docutils literal"><span class="pre">vertex_iterator,</span></tt> 107<tt class="docutils literal"><span class="pre">vertex_iterator></span></tt></td> 108<td>Returns an iterator range 109providing access to the local 110vertices in the graph.</td> 111</tr> 112<tr><td>Number of local 113vertices.</td> 114<td><tt class="docutils literal"><span class="pre">num_vertices(g)</span></tt></td> 115<td><tt class="docutils literal"><span class="pre">vertices_size_type</span></tt></td> 116<td>Returns the number of vertices 117stored locally in the graph.</td> 118</tr> 119</tbody> 120</table> 121</div> 122<div class="section" id="models"> 123<h1><a class="toc-backref" href="#id6">Models</a></h1> 124<blockquote> 125<ul class="simple"> 126<li><a class="reference external" href="distributed_adjacency_list.html">Distributed adjacency list</a></li> 127</ul> 128</blockquote> 129<hr class="docutils" /> 130<p>Copyright (C) 2005 The Trustees of Indiana University.</p> 131<p>Authors: Douglas Gregor and Andrew Lumsdaine</p> 132</div> 133</div> 134<div class="footer"> 135<hr class="footer" /> 136Generated on: 2009-05-31 00:21 UTC. 137Generated by <a class="reference external" href="http://docutils.sourceforge.net/">Docutils</a> from <a class="reference external" href="http://docutils.sourceforge.net/rst.html">reStructuredText</a> source. 138 139</div> 140</body> 141</html> 142
