/// <summary>
///
/// </summary>
/// <param name="problemType">
/// The problem type name as given by TaskSolver and Client
/// </param>
/// <param name="id">
/// The ID of the problem instance assigned by the server
/// </param>
/// <param name="commonData">
/// common data which was previously sent to all Computational Nodes (possibly
/// could be stored on server as TaskManagers could have changed)
/// </param>
/// <param name="solutions">
/// Solutions
/// </param>
public SolutionsMessage(string problemType, ulong id, byte[] commonData, Solution[] solutions)
{
ProblemType = problemType;
Id = id;
CommonData = commonData;
Solutions = solutions;
}
public void Parse_XMLString_SolutionMessage()
{
/*********** Actual message ***********/
string path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"xml_samples\Solutions.xml");
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(path);
string xmlStr = xmlDoc.OuterXml;
string name = Message.GetMessageName(xmlStr);
SolutionsMessage actualMessage = null;
if (name == SolutionsMessage.ELEMENT_NAME)
actualMessage = SolutionsMessage.Construct(xmlStr);
/*********** Expected message ***********/
// construct fields for SolutionsMessage
string problemType = "TSP";
ulong id = 12;
byte[] commonData = { 1, 23, 25, 2, 5, 5, 5, 5, 2, 26, 87 };
// fields for Solution1
ulong taskId1 = 123;
bool timeoutOccured1 = false;
SolutionsSolutionType typeField1 = SolutionsSolutionType.Final;
ulong computationsTime1 = 12334;
byte[] data1 = { 24, 252, 6, 43, 57, 88 };
Solution solution1 = new Solution(taskId1, timeoutOccured1, typeField1, computationsTime1, data1);
// fields for Solution2
ulong taskId2 = 321;
bool timeoutOccured2 = true;
SolutionsSolutionType typeField2 = SolutionsSolutionType.Ongoing;
ulong computationsTime2 = 43321;
byte[] data2 = { 24, 25, 6, 3, 7, 8 };
Solution solution2 = new Solution(taskId2, timeoutOccured2, typeField2, computationsTime2, data2);
Solution[] solutions = { solution1, solution2 };
SolutionsMessage expectedMessage = new SolutionsMessage(problemType, id, commonData, solutions);
Assert.AreEqual(expectedMessage, actualMessage);
}
/// <summary>
/// in this function solution message with solved partial solution is sent (it checks if all subtasks of task are solved.
/// It returns true in case of completition of sending the message.
/// </summary>
/// <param name="numberOfTask"></param>
/// <param name="node"></param>
/// <param name="messagePackage"></param>
/// <returns></returns>
private bool isMergeSolutionSent(int numberOfTask, NetworkNode node, MessagePackage messagePackage)
{
if (taskTracker.Tasks[numberOfTask].Status != Cluster.TaskStatus.Merging && taskTracker.Tasks[numberOfTask].Status != Cluster.TaskStatus.Merged && taskTracker.Tasks[numberOfTask].subTasks.Count != 0)
{
for (int j = 0; j < taskTracker.Tasks[numberOfTask].subTasks.Count; j++)
{
if (taskTracker.Tasks[numberOfTask].subTasks[j].Status != Cluster.TaskStatus.Solved)
{
return false;
}
}
}
else
{
return false;
}
if (taskTracker.Tasks[numberOfTask].Type == node.SolvableProblems[0])
{
taskTracker.Tasks[numberOfTask].Status = Cluster.TaskStatus.Merging;
Solution[] solutions = new Solution[taskTracker.Tasks[numberOfTask].subTasks.Count];
for (int k = 0; k < solutions.Count(); k++)
{
solutions[k] = new Solution(SolutionsSolutionType.Final);
}
for (int j = 0; j < taskTracker.Tasks[numberOfTask].subTasks.Count; j++)
{
solutions[j].Data = taskTracker.Tasks[numberOfTask].subTasks[j].Solutions[0].Data;
}
SolutionsMessage solutionMessage = new SolutionsMessage(taskTracker.Tasks[numberOfTask].Type, (ulong)taskTracker.Tasks[numberOfTask].ID, taskTracker.Tasks[numberOfTask].CommonData, solutions);
server.Send(messagePackage.Socket, solutionMessage);
SmartConsole.PrintLine("Solution Message has been sent to Task Manager", SmartConsole.DebugLevel.Advanced);
return true;
}
return false;
}
public Task(int id, string type, byte[] data)
{
ID = id;
BaseData = data;
Type = type;
Status = TaskStatus.New;
Solutions = new Solution[1];
Solutions[0] = new Solution(SolutionsSolutionType.Ongoing);
}
/*******************************************************************/
/************************ PRIVATE METHODS **************************/
/*******************************************************************/
/*******************************************************************/
/************************* PUBLIC METHODS **************************/
/*******************************************************************/
public void Start()
{
switch (currentTask.Status)
{
case TaskStatus.Dividing:
byte[][] dividedProblems = taskSolver.DivideProblem(4);
PartialProblem[] partialProblems = new PartialProblem[dividedProblems.Count()];
for (int i = 0; i < dividedProblems.Count(); i++)
{
partialProblems[i] = new PartialProblem((ulong)currentTask.ID, dividedProblems[i], (ulong)NodeID);
}
SolvePartialProblemsMessage solvePartialProblemsMessage = new SolvePartialProblemsMessage(currentTask.Type, (ulong) currentTask.ID, currentTask.CommonData, (ulong)4, partialProblems);
Console.Write(">>Sending solve partial problems message. ");
messageProcessor.Communicate(solvePartialProblemsMessage);
this.statusThread.State = StatusThreadState.Idle;
this.currentTask = null;
break;
case TaskStatus.Solving:
byte[] solvedPartialProblem = taskSolver.Solve(currentTask.BaseData, new TimeSpan(0, 0, 5));
Solution[] solutions = new Solution[1];
//TODO subTask id, timeout checking , computations time
solutions[0] = new Solution((ulong)currentTask.ID, false, SolutionsSolutionType.Partial, 4000, solvedPartialProblem);
SolutionsMessage solutionMessage = new SolutionsMessage(currentTask.Type, (ulong)currentTask.ID, currentTask.CommonData, solutions);
Console.WriteLine(">>Sending solution message. ");
messageProcessor.Communicate(solutionMessage);
statusThread.State = StatusThreadState.Idle;
this.currentTask = null;
break;
case TaskStatus.Merging:
byte[][] partialSolutions = new byte[currentTask.subTasks.Count()][];
for(int i=0;i<currentTask.subTasks.Count();i++){
partialSolutions[i] = currentTask.subTasks[i].BaseData;
}
byte[] mergedSolution = taskSolver.MergeSolution(partialSolutions);
Solution[] solution = new Solution[1];
//TODO subTask id, timeout checking , computations time
solution[0] = new Solution((ulong)currentTask.ID, false, SolutionsSolutionType.Final, 4000, mergedSolution);
SolutionsMessage finalSolutionMessage = new SolutionsMessage(currentTask.Type, (ulong)currentTask.ID, currentTask.CommonData, solution);
messageProcessor.Communicate(finalSolutionMessage);
this.statusThread.State = StatusThreadState.Idle;
this.currentTask = null;
break;
}
// Implement in private methods:
// Depending on what has to be computed
// run a task solver method.
// TODO collect result.
}
public static SolutionsMessage CreateSolutionsMessage()
{
string problemType = "TSP";
ulong id = 12;
byte[] commonData = { 1, 23, 25, 2, 5, 5, 5, 5, 2, 26, 87 };
// fields for Solution1
ulong taskId1 = 123;
bool timeoutOccured1 = false;
SolutionsSolutionType typeField1 = SolutionsSolutionType.Final;
ulong computationsTime1 = 12334;
byte[] data1 = { 24, 252, 6, 43, 57, 88 };
Solution solution1 = new Solution(taskId1, timeoutOccured1, typeField1, computationsTime1, data1);
// fields for Solution2
ulong taskId2 = 321;
bool timeoutOccured2 = true;
SolutionsSolutionType typeField2 = SolutionsSolutionType.Ongoing;
ulong computationsTime2 = 43321;
byte[] data2 = { 24, 25, 6, 3, 7, 8 };
Solution solution2 = new Solution(taskId2, timeoutOccured2, typeField2, computationsTime2, data2);
Solution[] solutions = { solution1, solution2 };
SolutionsMessage expectedMessage = new SolutionsMessage(problemType, id, commonData, solutions);
return expectedMessage;
}