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node.name,
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remote_host,
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key="{}-{}".format(remote_port, port),
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headport=remote_port,
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tailport=port)
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else:
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G.add_edge(node.name, remote_host,
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key="{}-{}".format(remote_port, port))
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edge = G.get_edge(
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node.name, remote_host, key="{}-{}".format(
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remote_port, port))
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if topology[remote_host]['node_type'] == 'hca':
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edge.attr['color'] = HCA_Edge_Color
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if useClusters:
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if Subgraph_For_Current_Switch is None:
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Subgraph_For_Current_Switch = G.subgraph(
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remote_host, 'cluster{}'.format(
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global_cluster_id))
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Subgraph_For_Current_Switch.graph_attr[
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'fillcolor'] = Cluster_Color
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Subgraph_For_Current_Switch.graph_attr[
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'style'] = 'filled'
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global_cluster_id = global_cluster_id + 1
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else:
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Subgraph_For_Current_Switch.add_node(
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remote_host)
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else:
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# Else the node connects two switches.
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edge.attr['color'] = Switch_Edge_Color
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if exportGexf:
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gephi_edge_id += 1
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edge_node = et.SubElement(
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edges_node, 'edge',
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attrib={'id': str(gephi_edge_id),
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'source': node.name,
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'target': remote_host,
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'label': "{} -- {}".format(
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node.name, remote_host)})
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r, g, b = hex_to_rgb(edge.attr['color'])
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et.SubElement(
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edge_node, 'viz:color', attrib={
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'r': str(r), 'g': str(g), 'b': str(b)})
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node.attr['label'] = label
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# print(G.string())
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LOG.info(("Total number of nodes: %d\n"
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"Total number of Switches: %d\n"
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"Total number of HCAs: %d\n"
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"Total number of Edges: %d"),
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num_of_hcas + num_of_switches,
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num_of_switches,
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num_of_hcas,
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len(G.edges()))
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output_filename = os.path.basename(topology_file)
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dot_filename = "{}.dot".format(output_filename)
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G.write(dot_filename)
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LOG.info(
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"The dot file has been saved in the file '%s'.", dot_filename)
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if options.render_file:
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# twopi, gvcolor, wc, ccomps, tred, sccmap, fdp, circo, neato, acyclic,
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# nop, gvpr, dot, sfdp
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drawing_args = ''
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G.layout(prog='neato', args=drawing_args)
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# 'canon', 'cmap', 'cmapx', 'cmapx_np', 'dia', 'dot',
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# 'fig', 'gd', 'gd2', 'gif', 'hpgl', 'imap', 'imap_np',
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# 'ismap', 'jpe', 'jpeg', 'jpg', 'mif', 'mp', 'pcl', 'pdf',
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# 'pic', 'plain', 'plain-ext', 'png', 'ps', 'ps2', 'svg',
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# 'svgz', 'vml', 'vmlz', 'vrml', 'vtx', 'wbmp', 'xdot', 'xlib'
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render_filename = "{}.pdf".format(output_filename)
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G.draw(render_filename)
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LOG.info("The rendered file has been saved in the file '%s'.",
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render_filename)
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# Use command line to debug long executing drawings:
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# dot -Tpdf -Gnslimit=1000 k-18-n-3.topology.dot -v -O
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if exportGexf:
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gexf_filename = "{}.gexf".format(output_filename)
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xml_ugly = et.tostring(root_node, encoding='UTF-8', method='xml')
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xml = md.parseString(xml_ugly)
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with open(gexf_filename, 'wb') as f:
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f.write(xml.toprettyxml(indent=" ", newl="\n", encoding='UTF-8'))
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LOG.info(
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"The gexf file has been saved in the file '%s'.", gexf_filename)
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LOG.info(("\nIf you want to generate a beautiful graph with Gephi,"
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" follow the following steps:\n"
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" 1. Load the file '%s' in Gephi.\n"
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" 2. Go to the 'Overview' tab and choose a placement layout"
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" (I like the results of 'ForceAtlas 2' algorithm).\n"
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" 3. Tune as needed and run the layout until you are"
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" satisfied with the placement and press stop.\n"
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" 4. Go to the 'Preview' tab and press the 'Refresh'"
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