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<title>Parallel BGL Local Subgraph Adaptor</title>
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<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> Local Subgraph Adaptor</h1>

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<p>The local subgraph adaptor takes an existing <cite>Distributed Graph</cite> and
filters out all of the nonlocal edges and vertices, presenting only
the local portion of the distributed graph to the user. The behavior
is equivalent to (and implemented with) a <a class="reference external" href="http://www.boost.org/libs/graph/doc/filtered_graph.html">filtered graph</a>, and is a
noncopying view into the graph itself. Changes made through the
filtered graph will be reflected in the original graph and vice-versa.</p>
<pre class="literal-block">
template&lt;typename DistributedGraph&gt; class local_subgraph;

template&lt;typename DistributedGraph&gt;
local_subgraph&lt;DistributedGraph&gt; make_local_subgraph(DistributedGraph&amp; g);
</pre>
<div class="section" id="where-defined">
<h1>Where Defined</h1>
<p>&lt;boost/graph/distributed/local_subgraph.hpp&gt;</p>
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<h1>Reference</h1>
<p>The local subgraph adaptor adapts and forwards all operations of
distributed graphs, the signatures of which will be omitted. Only
operations unique to the local subgraph adaptor are presented.</p>
<div class="section" id="member-functions">
<h2>Member Functions</h2>
<pre class="literal-block">
local_subgraph(DistributedGraph&amp; g);
</pre>
<p>Constructs a local subgraph presenting the local portion of the
distributed graph <tt class="docutils literal"><span class="pre">g</span></tt>.</p>
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<pre class="literal-block">
DistributedGraph&amp;         base()               { return g; }
const DistributedGraph&amp;   base() const         { return g; }
</pre>
<p>Returns the underlying distributed graph.</p>
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<div class="section" id="free-functions">
<h2>Free Functions</h2>
<pre class="literal-block">
template&lt;typename DistributedGraph&gt;
local_subgraph&lt;DistributedGraph&gt; make_local_subgraph(DistributedGraph&amp; g);
</pre>
<p>Constructs a local subgraph presenting the local portion of the
distributed graph <tt class="docutils literal"><span class="pre">g</span></tt>.</p>
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