experiments: add scalability experiment

experiments/pyexps/scalability.py

+import modes.experiments as exp
+import modes.simulators as sim
+import modes.nodeconfig as node
+
+host_configs = ['bm', 'cycle']
+n_clients = [1, 2, 4, 8]
+target_bandwidth = 100
+
+experiments = []
+
+for host_config in host_configs:
+    for nc in n_clients:
+        e = exp.Experiment('scalability-' + host_config + '-' + str(nc))
+
+        if host_config == 'bm':
+            host_class = sim.QemuHost
+            nic_class = sim.CorundumBMNIC
+            nc_class = node.CorundumLinuxNode
+            net = sim.SwitchNet()
+        elif host_config == 'cycle':
+            host_class = sim.Gem5Host
+            nic_class = sim.CorundumVerilatorNIC
+            nc_class = node.CorundumLinuxNode
+            net = sim.NS3BridgeNet()
+        else:
+            raise NameError(host_config)
+
+        e.add_network(net)
+
+        servers = sim.create_basic_hosts(e, 1, 'server', net, nic_class, host_class,
+                nc_class, node.IperfUDPServer)
+
+        clients = sim.create_basic_hosts(e, nc, 'client', net, nic_class, host_class,
+                nc_class, node.IperfUDPClient)
+
+        for c in clients:
+            c.wait = True
+            c.node_config.app.server_ip = servers[0].node_config.ip
+            c.node_config.app.rate = str(target_bandwidth/nc)+'m'
+
+        experiments.append(e)