</span></tt>, with edges placed on the
process owning the source of the edge. Note that this behavior
permits sequential graph construction code to be parallelized
automatically, regardless of the underlying distribution.</p>
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<pre class="literal-block">
void clear()
</pre>
<p>Removes all of the edges and vertices from the local graph. To
eliminate all vertices and edges from the graph, this routine must be
executed in all processes.</p>
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<pre class="literal-blo