distributed over several processes, using the MPI process group
for communication. In each process, the vertices and outgoing edges
will be stored in STL vectors. There are no properties attached to the
vertices or edges of the graph.</p>
<pre class="literal-block">
using namespace boost;
typedef adjacency_list&lt;vecS,
                       distributedS&lt;parallel::mpi::bsp_process_group, vecS&gt;,
                       directedS&gt;
  Graph;
</pre>
</div>
<div class="section" id="distributed-vertex-and