protected override string ReceivedSolvePartialProblems(SolvePartialProblems solvePartialProblems)
{
/* Partial problems message is sent by the TM after dividing the problem into smaller partial problems.
* The data in it consists of two parts – common for all partial problems and specific for the given task.
* The same Partial Problems schema is used for the messages sent to be computed by the CN and to relay
* information for synchronizing info with Backup CS.
*/
this.serverQueues.ProblemsToSolve.Enqueue(solvePartialProblems);
//if (this.BackupMode == true)
// return null;
if (this.serverQueues.SolveRequests.Count > 0)
{
SolveRequest solveRequest = this.serverQueues.SolveRequests.Dequeue();
DivideProblem divideProblem = new DivideProblem();
divideProblem.Data = solveRequest.Data;
divideProblem.Id = solveRequest.Id;
Console.WriteLine("Sending DivideProblem as an ans to SolvePartiaProblems");
return(divideProblem.SerializeToXML());
}
//TM is not going to join the solutions
//if (this.serverQueues.Solutions.Count > 0) {
// Solutions solutions = this.serverQueues.Solutions.Dequeue();
// return solutions.SerializeToXML();
//}
Console.WriteLine("Sending NoOp as an ans to SolvePartialProblems");
return(this.GenerateNoOperation().SerializeToXML());
}
public void SerializeDivideProblem()
{
DivideProblem d = new DivideProblem();
string xml = d.SerializeToXML();
Assert.IsNotNull(xml);
}
public void DeserializeDivideProblem()
{
DivideProblem d = new DivideProblem();
string xml = d.SerializeToXML();
d = (DivideProblem)xml.DeserializeXML();
Assert.IsNotNull(d);
}
protected override string ReceivedStatus(Status status)
{
Debug.Assert(this.serverQueues != null, "null server queue");
Node node = this.RegisteredComponents.NodeWithID(status.Id);
NoOperation noOperationResponse = this.GenerateNoOperation();
if (!this.ensureNode(node))
{
return(noOperationResponse.SerializeToXML());
}
switch (node.NodeType)
{
case NodeType.TaskManager:
if (this.serverQueues.SolveRequests.Count > 0)
{
SolveRequest solveRequest = this.serverQueues.SolveRequests.Dequeue();
DivideProblem divideProblem = new DivideProblem();
divideProblem.Data = solveRequest.Data;
divideProblem.Id = solveRequest.Id;
Console.WriteLine("Sending DivideProblem to TM");
return(divideProblem.SerializeToXML());
}
//TM is not going to join the solutions
//if (this.serverQueues.Solutions.Count > 0) {
// Solutions solutions = this.serverQueues.Solutions.Dequeue();
// return solutions.SerializeToXML();
//}
break;
case NodeType.ComputationalNode: //TODO: check!!
bool busy = false;
if (status.Threads != null)
{
Console.WriteLine("Threads field not null");
foreach (StatusThreadsThread stt in status.Threads)
{
if (stt.ProblemInstanceIdSpecified || stt.TaskIdSpecified)
{
busy = true;
Console.WriteLine("Busy = true");
}
}
}
if (this.serverQueues.ProblemsToSolve.Count > 0 && !busy)
{
Console.WriteLine("Busy = true");
SolvePartialProblems partialProblems = this.serverQueues.ProblemsToSolve.Dequeue();
Console.WriteLine("Sending PartialProblems to CN");
return(partialProblems.SerializeToXML());
}
break;
case NodeType.Server: {
foreach (BackupServerQueue bsq in this.backupServerQueues)
{
if (bsq.backupServerId == status.Id)
{
Console.WriteLine("Sending queued message to BackupCS");
if (bsq.messages.Count > 0)
{
return(bsq.messages.Dequeue());
}
}
}
}
break;
default:
break;
}
Debug.Assert(node != null, "Received unregistered node status");
if (node == null)
{
Console.WriteLine("Received unregistered node status");
return(noOperationResponse.SerializeToXML());
}
if (!this.BackupMode)
{
Console.WriteLine("Sending NoOp");
}
return(noOperationResponse.SerializeToXML());
}
