public static void HeavyChurn(Simulator sim, int time)
{
sim.Complete();
Dictionary<Node, Node> volatile_nodes = new Dictionary<Node, Node>();
int fifteen_mins = (int) ((new TimeSpan(0, 15, 0)).Ticks / TimeSpan.TicksPerMillisecond);
int max = sim.StartingNetworkSize * 2;
Random rand = new Random();
DateTime end = DateTime.UtcNow.AddSeconds(time);
while(end > DateTime.UtcNow) {
SimpleTimer.RunSteps(fifteen_mins);
List<Node> to_remove = new List<Node>();
foreach(Node node in volatile_nodes.Keys) {
double prob = rand.NextDouble();
if(prob <= .7) {
continue;
}
// This is due to some bug that I can no longer remember
// sim.RemoveNode(node, prob > .9);
sim.RemoveNode(node, true);
to_remove.Add(node);
}
foreach(Node node in to_remove) {
volatile_nodes.Remove(node);
}
Console.WriteLine("Removed: {0} Nodes" , to_remove.Count);
while(volatile_nodes.Count < max) {
Node node = sim.AddNode();
volatile_nodes.Add(node, node);
}
}
}
public static int Main(string []args)
{
Parameters p = new Parameters("Simulator", "Simulator - Brunet Time Based Simulator");
if(p.Parse(args) != 0) {
Console.WriteLine(p.ErrorMessage);
p.ShowHelp();
return -1;
} else if(p.Help) {
p.ShowHelp();
return -1;
}
Simulator sim = new Simulator(p);
if(p.Complete) {
sim.Complete();
} else if(p.Evaluation) {
DateTime now = DateTime.UtcNow;
sim.Complete();
SimpleTimer.RunSteps(p.EvaluationTime, false);
sim.Complete();
Console.WriteLine("Time spent setting up: " + (DateTime.UtcNow - now).ToString());
sim.AllToAll();
sim.Crawl();
} else if(p.HeavyChurn) {
HeavyChurn(sim, p.EvaluationTime);
} else {
Commands(sim);
}
return 0;
}
public void CompleteTheRing() {
Parameters p = new Parameters("Test", "Test");
string[] args = "-b=.2 -c -s=25".Split(' ');
Assert.AreNotEqual(-1, p.Parse(args), "Unable to parse" + p.ErrorMessage);;
Simulator sim = new Simulator(p);
Assert.IsTrue(sim.Complete(true), "Simulation failed to complete the ring");
}
public static int Main(string []args)
{
#if SUBRING
SubringParameters p = new SubringParameters();
#else
Parameters p = new Parameters("Simulator", "Simulator - Brunet Time Based Simulator");
#endif
if(p.Parse(args) != 0) {
Console.WriteLine(p.ErrorMessage);
p.ShowHelp();
return -1;
} else if(p.Help) {
p.ShowHelp();
return -1;
}
#if SUBRING
SubringSimulator sim = new SubringSimulator(p);
#else
Simulator sim = new Simulator(p);
#endif
if(p.Complete) {
sim.Complete();
} else if(p.Broadcast > -2) {
Broadcast(sim, p.Broadcast);
} else if(p.HeavyChurn > 0) {
HeavyChurn(sim, p.HeavyChurn);
} else if(p.Evaluation) {
Evaluate(sim, p);
} else {
Commands(sim);
}
return 0;
}
public void CompleteTheRing() {
Parameters p = new Parameters("Test", "Test");
string[] args = "-b=.2 -c -s=250".Split(' ');
p.Parse(args);
Simulator sim = new Simulator(p);
Assert.IsTrue(sim.Complete(true), "Simulation failed to complete the ring");
}
public static void Main(string []args)
{
Simulator sim = new Simulator();
bool complete = false;
ParseCommandLine(args, out complete, sim);
if(complete) {
sim.Complete();
} else {
Commands(sim);
}
}
protected static void Broadcast(Simulator sim, int forwarders)
{
DateTime now = DateTime.UtcNow;
SimpleTimer.RunSteps(360000, false);
sim.Complete(true);
SimpleTimer.RunSteps(3600000, false);
sim.Complete(true);
Console.WriteLine("Time spent setting up: " + (DateTime.UtcNow - now).ToString());
for(int i = 0; i < sim.Nodes.Count; i++) {
sim.Broadcast(i, forwarders);
}
}
protected static void Evaluate(Simulator sim, Parameters p)
{
// DateTime now = DateTime.UtcNow;
SimpleTimer.RunSteps(360000, false);
sim.Complete(true);
SimpleTimer.RunSteps(3600000, false);
sim.Complete(true);
sim.AddNode();
sim.Complete(false);
// Console.WriteLine("Time spent setting up: " + (DateTime.UtcNow - now).ToString());
// sim.AllToAll();
// sim.Crawl();
}
public static void Main(string []args)
{
Simulator sim = new Simulator();
bool complete;
Runner.ParseCommandLine(args, out complete, sim);
DateTime start = DateTime.UtcNow;
sim.Complete();
Dictionary<Node, Node> volatile_nodes = new Dictionary<Node, Node>();
int fifteen_mins = (int) ((new TimeSpan(0, 15, 0)).Ticks / TimeSpan.TicksPerMillisecond);
int max = sim.StartingNetworkSize * 10;
Random rand = new Random();
while(start.AddHours(24) > DateTime.UtcNow) {
SimpleTimer.RunSteps(fifteen_mins);
List<Node> to_remove = new List<Node>();
foreach(Node node in volatile_nodes.Keys) {
double prob = rand.NextDouble();
if(prob <= .7) {
continue;
}
// sim.RemoveNode(node, prob > .9);
sim.RemoveNode(node, true);
to_remove.Add(node);
}
foreach(Node node in to_remove) {
volatile_nodes.Remove(node);
}
Console.WriteLine("Removed: {0} Nodes" , to_remove.Count);
while(volatile_nodes.Count < max) {
Node node = sim.AddNode();
volatile_nodes.Add(node, node);
}
}
}
public static void Commands(Simulator sim)
{
string command = String.Empty;
Console.WriteLine("Type HELP for a list of commands.\n");
while (command != "Q") {
bool secure = false;
Console.Write("#: ");
// Commands can have parameters separated by spaces
string[] parts = Console.ReadLine().Split(' ');
command = parts[0];
try {
if(command.Equals("S")) {
secure = true;
command = parts[1];
}
switch(command) {
case "C":
sim.CheckRing(true);
break;
case "P":
sim.PrintConnections();
break;
case "M":
Console.WriteLine("Memory Usage: " + GC.GetTotalMemory(true));
break;
case "CR":
sim.Crawl(true, secure);
break;
case "A2A":
sim.AllToAll(secure);
break;
case "A":
sim.AddNode();
break;
case "D":
sim.RemoveNode(true, true);
break;
case "R":
sim.RemoveNode(true, false);
break;
case "RUN":
int steps = (parts.Length >= 2) ? Int32.Parse(parts[1]) : 0;
if(steps > 0) {
SimpleTimer.RunSteps(steps);
} else {
SimpleTimer.RunStep();
}
break;
case "Q":
break;
case "CONSTATE":
sim.PrintConnectionState();
break;
case "H":
Console.WriteLine("Commands: \n");
Console.WriteLine("A - add a node");
Console.WriteLine("D - remove a node");
Console.WriteLine("R - abort a node");
Console.WriteLine("C - check the ring using ConnectionTables");
Console.WriteLine("P - Print connections for each node to the screen");
Console.WriteLine("M - Current memory usage according to the garbage collector");
Console.WriteLine("[S] CR - Perform a (secure) crawl of the network using RPC");
Console.WriteLine("[S] A2A - Perform all-to-all measurement of the network using RPC");
Console.WriteLine("Q - Quit");
break;
default:
Console.WriteLine("Invalid command");
break;
}
} catch(Exception e) {
Console.WriteLine("Error: " + e);
}
Console.WriteLine();
}
}
public static void Run(Simulator sim, Address addr1, Address addr2)
{
Console.WriteLine("Beginning");
sim.Complete();
SimpleTimer.RunSteps(1000000, false);
StructuredNode node1 = (sim.Nodes[addr1] as NodeMapping).Node as StructuredNode;
StructuredNode node2 = (sim.Nodes[addr2] as NodeMapping).Node as StructuredNode;
sim.Complete();
node1.ManagedCO.AddAddress(addr2);
Connection con1 = node1.ConnectionTable.GetConnection(ConnectionType.Structured, addr2);
while(con1 == null) {
SimpleTimer.RunStep();
con1 = node1.ConnectionTable.GetConnection(ConnectionType.Structured, addr2);
}
Hashtable ht = new Hashtable();
foreach(Connection con in node1.ConnectionTable.GetConnections(Tunnel.OverlapConnectionOverlord.STRUC_OVERLAP)) {
ht[con.Address] = (con.Edge as SimulationEdge).Delay;
con.Edge.Close();
}
ConnectionList cl2 = node2.ConnectionTable.GetConnections(ConnectionType.Structured);
foreach(DictionaryEntry de in ht) {
Address addr = de.Key as Address;
int delay = (int) de.Value;
int index = cl2.IndexOf(addr);
if(index < 0) {
Console.WriteLine("No matching pair for overlap...");
continue;
}
Connection con = cl2[index];
delay += (con.Edge as SimulationEdge).Delay;
Console.WriteLine("Delay: " + delay);
}
ht.Clear();
foreach(Connection con in node2.ConnectionTable.GetConnections(Tunnel.OverlapConnectionOverlord.STRUC_OVERLAP)) {
ht[con.Address] = (con.Edge as SimulationEdge).Delay;
con.Edge.Close();
}
ConnectionList cl1 = node1.ConnectionTable.GetConnections(ConnectionType.Structured);
foreach(DictionaryEntry de in ht) {
Address addr = de.Key as Address;
int delay = (int) de.Value;
int index = cl1.IndexOf(addr);
if(index < 0) {
Console.WriteLine("No matching pair for overlap...");
continue;
}
Connection con = cl1[index];
delay += (con.Edge as SimulationEdge).Delay;
Console.WriteLine("Delay: " + delay);
}
node1.Disconnect();
node2.Disconnect();
SimpleTimer.RunSteps(100000);
Console.WriteLine("End");
}
public static void ParseCommandLine(string []args, out bool complete, Simulator sim)
{
complete = false;
string dataset_filename = String.Empty;
int carg = 0;
sim.StartingNetworkSize = 10;
while(carg < args.Length) {
String[] parts = args[carg++].Split('=');
try {
switch(parts[0]) {
case "--n":
sim.StartingNetworkSize = Int32.Parse(parts[1]);
break;
case "--broken":
sim.Broken = Double.Parse(parts[1]);
break;
case "--complete":
complete = true;
break;
case "--seed":
sim.Seed = Int32.Parse(parts[1]);
break;
case "--se":
sim.SecureEdges = true;
sim.SecureStartup();
break;
case "--ss":
sim.SecureSenders = true;
sim.SecureStartup();
break;
case "--dataset":
dataset_filename = parts[1];
break;
case "--help":
default:
PrintHelp();
break;
}
}
catch {
PrintHelp();
}
}
Console.WriteLine("Initializing...");
if(dataset_filename != String.Empty) {
List<List<int>> latency = new List<List<int>>();
using(StreamReader fs = new StreamReader(new FileStream(dataset_filename, FileMode.Open))) {
string line = null;
while((line = fs.ReadLine()) != null) {
string[] points = line.Split(' ');
List<int> current = new List<int>(points.Length);
foreach(string point in points) {
int val;
if(!Int32.TryParse(point, out val)) {
continue;
}
current.Add(Int32.Parse(point));
}
latency.Add(current);
}
}
if(sim.StartingNetworkSize == 10) {
sim.StartingNetworkSize = latency.Count;
}
SimulationEdgeListener.LatencyMap = latency;
}
for(int i = 0; i < sim.StartingNetworkSize; i++) {
Console.WriteLine("Setting up node: " + i);
sim.AddNode();
}
Console.WriteLine("Initialization complete...\n");
}