Exemple #1
0
  /**
   * Prints the results.
   *
   * @param datacenter the datacenter
   * @param lastClock the last clock
   * @param experimentName the experiment name
   * @param outputInCsv the output in csv
   * @param outputFolder the output folder
   */
  public static void printResults(
      PowerDatacenter datacenter,
      List<Vm> vms,
      double lastClock,
      String experimentName,
      boolean outputInCsv,
      String outputFolder) {
    Log.enable();
    List<Host> hosts = datacenter.getHostList();

    int numberOfHosts = hosts.size();
    int numberOfVms = vms.size();

    double totalSimulationTime = lastClock;
    double energy = datacenter.getPower() / (3600 * 1000);
    int numberOfMigrations = datacenter.getMigrationCount();

    Map<String, Double> slaMetrics = getSlaMetrics(vms);

    double slaOverall = slaMetrics.get("overall");
    double slaAverage = slaMetrics.get("average");
    double slaDegradationDueToMigration = slaMetrics.get("underallocated_migration");
    // double slaTimePerVmWithMigration = slaMetrics.get("sla_time_per_vm_with_migration");
    // double slaTimePerVmWithoutMigration =
    // slaMetrics.get("sla_time_per_vm_without_migration");
    // double slaTimePerHost = getSlaTimePerHost(hosts);
    double slaTimePerActiveHost = getSlaTimePerActiveHost(hosts);

    double sla = slaTimePerActiveHost * slaDegradationDueToMigration;

    List<Double> timeBeforeHostShutdown = getTimesBeforeHostShutdown(hosts);

    int numberOfHostShutdowns = timeBeforeHostShutdown.size();

    double meanTimeBeforeHostShutdown = Double.NaN;
    double stDevTimeBeforeHostShutdown = Double.NaN;
    if (!timeBeforeHostShutdown.isEmpty()) {
      meanTimeBeforeHostShutdown = MathUtil.mean(timeBeforeHostShutdown);
      stDevTimeBeforeHostShutdown = MathUtil.stDev(timeBeforeHostShutdown);
    }

    List<Double> timeBeforeVmMigration = getTimesBeforeVmMigration(vms);
    double meanTimeBeforeVmMigration = Double.NaN;
    double stDevTimeBeforeVmMigration = Double.NaN;
    if (!timeBeforeVmMigration.isEmpty()) {
      meanTimeBeforeVmMigration = MathUtil.mean(timeBeforeVmMigration);
      stDevTimeBeforeVmMigration = MathUtil.stDev(timeBeforeVmMigration);
    }

    if (outputInCsv) {
      File folder = new File(outputFolder);
      if (!folder.exists()) {
        folder.mkdir();
      }
      File folder1 = new File(outputFolder + "/stats");
      if (!folder1.exists()) {
        folder1.mkdir();
      }
      File folder2 = new File(outputFolder + "/time_before_host_shutdown");
      if (!folder2.exists()) {
        folder2.mkdir();
      }
      File folder3 = new File(outputFolder + "/time_before_vm_migration");
      if (!folder3.exists()) {
        folder3.mkdir();
      }
      File folder4 = new File(outputFolder + "/metrics");
      if (!folder4.exists()) {
        folder4.mkdir();
      }

      StringBuilder data = new StringBuilder();
      String delimeter = ",";

      data.append(experimentName + delimeter);
      data.append(parseExperimentName(experimentName));
      data.append(String.format("%d", numberOfHosts) + delimeter);
      data.append(String.format("%d", numberOfVms) + delimeter);
      data.append(String.format("%.2f", totalSimulationTime) + delimeter);
      data.append(String.format("%.5f", energy) + delimeter);
      data.append(String.format("%d", numberOfMigrations) + delimeter);
      data.append(String.format("%.10f", sla) + delimeter);
      data.append(String.format("%.10f", slaTimePerActiveHost) + delimeter);
      data.append(String.format("%.10f", slaDegradationDueToMigration) + delimeter);
      data.append(String.format("%.10f", slaOverall) + delimeter);
      data.append(String.format("%.10f", slaAverage) + delimeter);
      // data.append(String.format("%.5f", slaTimePerVmWithMigration) + delimeter);
      // data.append(String.format("%.5f", slaTimePerVmWithoutMigration) + delimeter);
      // data.append(String.format("%.5f", slaTimePerHost) + delimeter);
      data.append(String.format("%d", numberOfHostShutdowns) + delimeter);
      data.append(String.format("%.2f", meanTimeBeforeHostShutdown) + delimeter);
      data.append(String.format("%.2f", stDevTimeBeforeHostShutdown) + delimeter);
      data.append(String.format("%.2f", meanTimeBeforeVmMigration) + delimeter);
      data.append(String.format("%.2f", stDevTimeBeforeVmMigration) + delimeter);

      if (datacenter.getVmAllocationPolicy() instanceof PowerVmAllocationPolicyMigrationAbstract) {
        PowerVmAllocationPolicyMigrationAbstract vmAllocationPolicy =
            (PowerVmAllocationPolicyMigrationAbstract) datacenter.getVmAllocationPolicy();

        double executionTimeVmSelectionMean =
            MathUtil.mean(vmAllocationPolicy.getExecutionTimeHistoryVmSelection());
        double executionTimeVmSelectionStDev =
            MathUtil.stDev(vmAllocationPolicy.getExecutionTimeHistoryVmSelection());
        double executionTimeHostSelectionMean =
            MathUtil.mean(vmAllocationPolicy.getExecutionTimeHistoryHostSelection());
        double executionTimeHostSelectionStDev =
            MathUtil.stDev(vmAllocationPolicy.getExecutionTimeHistoryHostSelection());
        double executionTimeVmReallocationMean =
            MathUtil.mean(vmAllocationPolicy.getExecutionTimeHistoryVmReallocation());
        double executionTimeVmReallocationStDev =
            MathUtil.stDev(vmAllocationPolicy.getExecutionTimeHistoryVmReallocation());
        double executionTimeTotalMean =
            MathUtil.mean(vmAllocationPolicy.getExecutionTimeHistoryTotal());
        double executionTimeTotalStDev =
            MathUtil.stDev(vmAllocationPolicy.getExecutionTimeHistoryTotal());

        data.append(String.format("%.5f", executionTimeVmSelectionMean) + delimeter);
        data.append(String.format("%.5f", executionTimeVmSelectionStDev) + delimeter);
        data.append(String.format("%.5f", executionTimeHostSelectionMean) + delimeter);
        data.append(String.format("%.5f", executionTimeHostSelectionStDev) + delimeter);
        data.append(String.format("%.5f", executionTimeVmReallocationMean) + delimeter);
        data.append(String.format("%.5f", executionTimeVmReallocationStDev) + delimeter);
        data.append(String.format("%.5f", executionTimeTotalMean) + delimeter);
        data.append(String.format("%.5f", executionTimeTotalStDev) + delimeter);

        writeMetricHistory(
            hosts, vmAllocationPolicy, outputFolder + "/metrics/" + experimentName + "_metric");
      }

      data.append("\n");

      writeDataRow(data.toString(), outputFolder + "/stats/" + experimentName + "_stats.csv");
      writeDataColumn(
          timeBeforeHostShutdown,
          outputFolder
              + "/time_before_host_shutdown/"
              + experimentName
              + "_time_before_host_shutdown.csv");
      writeDataColumn(
          timeBeforeVmMigration,
          outputFolder
              + "/time_before_vm_migration/"
              + experimentName
              + "_time_before_vm_migration.csv");

    } else {
      Log.setDisabled(false);
      Log.printLine();
      Log.printLine(String.format("Experiment name: " + experimentName));
      Log.printLine(String.format("Number of hosts: " + numberOfHosts));
      Log.printLine(String.format("Number of VMs: " + numberOfVms));
      Log.printLine(String.format("Total simulation time: %.2f sec", totalSimulationTime));
      Log.printLine(String.format("Energy consumption: %.2f kWh", energy));
      Log.printLine(String.format("Number of VM migrations: %d", numberOfMigrations));
      Log.printLine(String.format("SLA: %.5f%%", sla * 100));
      Log.printLine(
          String.format(
              "SLA perf degradation due to migration: %.2f%%", slaDegradationDueToMigration * 100));
      Log.printLine(String.format("SLA time per active host: %.2f%%", slaTimePerActiveHost * 100));
      Log.printLine(String.format("Overall SLA violation: %.2f%%", slaOverall * 100));
      Log.printLine(String.format("Average SLA violation: %.2f%%", slaAverage * 100));
      // Log.printLine(String.format("SLA time per VM with migration: %.2f%%",
      // slaTimePerVmWithMigration * 100));
      // Log.printLine(String.format("SLA time per VM without migration: %.2f%%",
      // slaTimePerVmWithoutMigration * 100));
      // Log.printLine(String.format("SLA time per host: %.2f%%", slaTimePerHost * 100));
      Log.printLine(String.format("Number of host shutdowns: %d", numberOfHostShutdowns));
      Log.printLine(
          String.format("Mean time before a host shutdown: %.2f sec", meanTimeBeforeHostShutdown));
      Log.printLine(
          String.format(
              "StDev time before a host shutdown: %.2f sec", stDevTimeBeforeHostShutdown));
      Log.printLine(
          String.format("Mean time before a VM migration: %.2f sec", meanTimeBeforeVmMigration));
      Log.printLine(
          String.format("StDev time before a VM migration: %.2f sec", stDevTimeBeforeVmMigration));

      if (datacenter.getVmAllocationPolicy() instanceof PowerVmAllocationPolicyMigrationAbstract) {
        PowerVmAllocationPolicyMigrationAbstract vmAllocationPolicy =
            (PowerVmAllocationPolicyMigrationAbstract) datacenter.getVmAllocationPolicy();

        double executionTimeVmSelectionMean =
            MathUtil.mean(vmAllocationPolicy.getExecutionTimeHistoryVmSelection());
        double executionTimeVmSelectionStDev =
            MathUtil.stDev(vmAllocationPolicy.getExecutionTimeHistoryVmSelection());
        double executionTimeHostSelectionMean =
            MathUtil.mean(vmAllocationPolicy.getExecutionTimeHistoryHostSelection());
        double executionTimeHostSelectionStDev =
            MathUtil.stDev(vmAllocationPolicy.getExecutionTimeHistoryHostSelection());
        double executionTimeVmReallocationMean =
            MathUtil.mean(vmAllocationPolicy.getExecutionTimeHistoryVmReallocation());
        double executionTimeVmReallocationStDev =
            MathUtil.stDev(vmAllocationPolicy.getExecutionTimeHistoryVmReallocation());
        double executionTimeTotalMean =
            MathUtil.mean(vmAllocationPolicy.getExecutionTimeHistoryTotal());
        double executionTimeTotalStDev =
            MathUtil.stDev(vmAllocationPolicy.getExecutionTimeHistoryTotal());

        Log.printLine(
            String.format(
                "Execution time - VM selection mean: %.5f sec", executionTimeVmSelectionMean));
        Log.printLine(
            String.format(
                "Execution time - VM selection stDev: %.5f sec", executionTimeVmSelectionStDev));
        Log.printLine(
            String.format(
                "Execution time - host selection mean: %.5f sec", executionTimeHostSelectionMean));
        Log.printLine(
            String.format(
                "Execution time - host selection stDev: %.5f sec",
                executionTimeHostSelectionStDev));
        Log.printLine(
            String.format(
                "Execution time - VM reallocation mean: %.5f sec",
                executionTimeVmReallocationMean));
        Log.printLine(
            String.format(
                "Execution time - VM reallocation stDev: %.5f sec",
                executionTimeVmReallocationStDev));
        Log.printLine(
            String.format("Execution time - total mean: %.5f sec", executionTimeTotalMean));
        Log.printLine(
            String.format("Execution time - total stDev: %.5f sec", executionTimeTotalStDev));
      }
      Log.printLine();
    }

    Log.setDisabled(true);
  }
  public static void main(String[] args) {
    try {
      Log.disable();
      // First step: Initialize the WorkflowSim package.
      /** Should change this based on real physical path */
      String daxPath = "E:\\PhD\\ComplexCloudSim\\config\\dax\\Montage_1000.xml";
      File daxFile = new File(daxPath);
      if (!daxFile.exists()) {
        Log.printLine(
            "Warning: Please replace daxPath with the physical path in your working environment!");
        return;
      }
      Parameters.PlanningAlgorithm pln_method = Parameters.PlanningAlgorithm.INVALID;
      ReplicaCatalog.FileSystem file_system = ReplicaCatalog.FileSystem.SHARED;
      OverheadParameters op = new OverheadParameters(0, null, null, null, null, 0);
      ClusteringParameters.ClusteringMethod method = ClusteringParameters.ClusteringMethod.NONE;
      ClusteringParameters cp = new ClusteringParameters(0, 0, method, null);

      // For each scheduling algorithm (FCFS,RR,MinMin,MaxMin), run 100 times
      for (int sche = 0; sche < 4; sche++) {
        Parameters.SchedulingAlgorithm sch_method;
        switch (sche) {
          case 0:
            sch_method = Parameters.SchedulingAlgorithm.FCFS;
            break;
          case 1:
            sch_method = Parameters.SchedulingAlgorithm.ROUNDROBIN;
            break;
          case 2:
            sch_method = Parameters.SchedulingAlgorithm.MINMIN;
            break;
          case 3:
            sch_method = Parameters.SchedulingAlgorithm.MAXMIN;
            break;
          default:
            sch_method = Parameters.SchedulingAlgorithm.FCFS;
        }
        for (int runs = 0; runs < numRuns; runs++) {
          Parameters.init(numVMs, daxPath, null, null, op, cp, sch_method, pln_method, null, 0);
          ReplicaCatalog.init(file_system);

          // before creating any entities.
          int num_user = 1; // number of grid users
          Calendar calendar = Calendar.getInstance();
          boolean trace_flag = false; // mean trace events

          // Initialize the CloudSim library
          CloudSim.init(num_user, calendar, trace_flag);

          ComplexDatacenter datacenter0 = createDatacenter("Datacenter_0");

          /** Create a WorkflowPlanner with one schedulers. */
          WorkflowPlanner wfPlanner = new WorkflowPlanner("planner_0", 1);
          /** Create a WorkflowEngine. */
          WorkflowEngine wfEngine = wfPlanner.getWorkflowEngine();
          /**
           * Create a list of VMs.The userId of a vm is basically the id of the scheduler that
           * controls this vm.
           */
          List<ComplexVM> vmlist0 = createVM(wfEngine.getSchedulerId(0));

          /** Submits this list of vms to this WorkflowEngine. */
          wfEngine.submitVmList(vmlist0, 0);

          /** Binds the data centers with the scheduler. */
          wfEngine.bindSchedulerDatacenter(datacenter0.getId(), 0);
          CloudSim.startSimulation();
          List<Job> outputList0 = wfEngine.getJobsReceivedList();
          CloudSim.stopSimulation();
          switch (sche) {
            case 0:
              FCFSResult[runs] = wfEngine.getWorkflowFinishTime();
              break;
            case 1:
              RoundRobinResult[runs] = wfEngine.getWorkflowFinishTime();
              break;
            case 2:
              MinMinResult[runs] = wfEngine.getWorkflowFinishTime();
              break;
            case 3:
              MaxMinResult[runs] = wfEngine.getWorkflowFinishTime();
              break;
            default:
              FCFSResult[runs] = wfEngine.getWorkflowFinishTime();
              break;
          }
        }
        Log.enable();
        Log.printLine(
            "------ "
                + numVMs
                + " VMs "
                + numRuns
                + " Runs with Damage Ratio "
                + damageRatio
                + "------");
        Log.printLine(">> FCFS");
        printResult(FCFSResult);
        Log.printLine(">> RoundRobin");
        printResult(RoundRobinResult);
        Log.printLine(">> MinMin");
        printResult(MinMinResult);
        Log.printLine(">> MaxMin");
        printResult(MaxMinResult);
      }
    } catch (Exception e) {
      Log.printLine("The simulation has been terminated due to an unexpected error");
    }
  }