Examples of org.jamesii.core.util.StopWatch

org.jamesii.core.util.StopWatch
This class provides a simple stopwatch for time measurement. It is based on the system's clock, and thus it measures some real elapsed time between start and stop, respectively between start and a call of one of the elapsedXXX methods. Surely it can be used to measure the time passed in between these calls, but it is hard to draw any conclusion about algorithm performance from this. If used therefore one should keep in mind, that multi-core CPUs can harm the results as well as threads, processes and their management in general. Written by Petra and Dirk Tyschler, for the old JAMES, adapted therefore by Karsten Gugler, and finally transferred to CoSA by Jan Himmelspach (2003) @author Jan Himmelspach

   */
  private double runExperiment(Long rngSeed, PerfDBRecorder perfRecorder) {
    if (rngSeed != null) {
      SimSystem.getRNGGenerator().setSeed(rngSeed);
    }
    StopWatch watch = new StopWatch();
    perfRecorder.start();
    watch.start();
    experiment.execute();
    watch.stop();
    perfRecorder.stop();
    elapsedTime = watch.elapsedSeconds();
    return elapsedTime;
  }

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      double predictedPerformance) {


    List<Double> performances = new ArrayList<>();
    for (Map<String, Object> parameterSetup : setup.getSecondValue()) {
      System.err.println("Executing: " + Strings.dispMap(parameterSetup));
      StopWatch sw = new StopWatch();
      sw.start();
      BaseExperiment exp = new BaseExperiment();
      exp.getFixedModelParameters().putAll(parameterSetup);
      exp.setModelLocation(exploration.getExperiment().getModelLocation());
      exp.setDefaultSimStopTime(defaultSimStopTime);
      exp.execute();
      sw.stop();
      performances.add(sw.elapsedSeconds());
    }


    return new RealWorldSelectorPerformanceEntry(setup.getFirstValue(),
        performances, selGenFactoryName, predictedPerformance);
  }

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                    new ParameterBlock(UCB2Factory.class.getName()));
            pb.addSubBl(ParallelComputationTaskRunnerFactory.NUM_CORES, 1);
            be.setTaskRunnerFactory(new ParameterizedFactory<TaskRunnerFactory>(
                new AdaptiveTaskRunnerFactory(), pb));


            StopWatch sw = new StopWatch();
            sw.start();
            be.execute();
            sw.stop();
            System.err.println("Execution Time:" + sw.elapsedMilliseconds());
            execTimes.add(sw.elapsedMilliseconds() / 1000.0);
            System.err.println("Execution Times:"
                + Strings.dispIterable(execTimes));
          }
        }
      }

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  /**
   * Makes this experiment executable again after it has been serialized.
   */
  private void recreate() {
    setExperimentExecutionController(new DefaultExecutionController());
    setOverallRuntimeStopWatch(new StopWatch());
  }

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     * q.enqueue(new Object(), 8.3); q.enqueue(new Object(), 22.3);
     */


    int distrib = 3;


    StopWatch sw = new StopWatch();


    sw.start();


    for (int i = 0; i < 100000; i++) {


      double rand = Math.random();


      switch (distrib) {


      case 0:
        // Exponential
        q.enqueue(getObj(), -Math.log(rand));
        break;


      case 1:
        // Uniform 0.0 - 2.0
        q.enqueue(getObj(), 2 * rand);
        break;


      case 2:
        // Biased 0.9 - 1.1
        q.enqueue(getObj(), 0.9 + 0.2 * rand);
        break;


      case 3: {
        // Biomodal


        if (rand < 0.1) {
          q.enqueue(getObj(), 0.95238 + 9.5238 * rand);
        } else {
          q.enqueue(getObj(), 0.95238 + rand);
        }
        break;
      }


      case 4:
        // Triangular
        q.enqueue(getObj(), 1.5 * Math.pow(rand, 0.5));
      }
    }


    sw.stop();
    System.out.println("Enqueing took " + sw.elapsedSeconds() + " seconds ");


    /*
     * System.out.println("The event queue (intially filled)");
     * q.print(System.out);
     */

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  /**
   * Test to check the AbortionCriterion (@link WallClockTimeAbort).
   */
  public void testWallClock() {
    StopWatch watch = new StopWatch();
    gaps.setFitness(new SimpleFitness());
    gaps.setNumIndividuals(NUM_OF_IND);
    watch.start();
    gaps.setAbortCriterion(new WallClockTimeAbort(MILLISECONDS));
    gaps.portfolio(problemDescription);
    watch.stop();
    assertEquals(
        "Test should run " + MILLISECONDS + " but runs "
            + watch.elapsedMilliseconds() + ".", MILLISECONDS,
        watch.elapsedMilliseconds(), 1000);
    SimSystem.report(Level.INFO, "WallClockTest: " + gaps.getGenerationCount()
        + " generations simulated.");
  }

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    gaps.setNumIndividuals(NUM_OF_IND);
    ListOrAbort abortList = new ListOrAbort();
    abortList.addCriterion(new GenerationCountAbort(GEN_COUNT));
    abortList.addCriterion(new MaxFitnessAbort(MAXIMIZE_FITNESS));


    StopWatch watch = new StopWatch();
    watch.start();


    abortList.addCriterion(new WallClockTimeAbort(MILLISECONDS));
    gaps.setAbortCriterion(abortList);
    gaps.portfolio(problemDescription);
    watch.stop();


    assertTrue(
        "ListOrAbortTest: no abortCriteria fulfilled.",
        MILLISECONDS < watch.elapsedMilliseconds()
            || GEN_COUNT == gaps.getGenerationCount()
            || gaps.getBestFitness() >= MAXIMIZE_FITNESS);
    SimSystem.report(
        Level.INFO,
        "ListOrAbortTest: Fitness " + gaps.getBestFitness() + " reached in "
            + gaps.getGenerationCount() + " generations in "
            + watch.elapsedMilliseconds() + " milliseconds.");
  }

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    // the counter used to find out how many loop passes had to be executed
    // before the minTime had been exceeded
    int c = 0;


    // stop watch used to find out the number of milliseconds elapsed
    StopWatch sw = new StopWatch();
    double e = 0.;
    do {
      c++;
      sw.start();
      for (int i = 0; i < OPS; i++) {
        // double e = 2.1 + 4.4;
        e /= 3d;
        e += 4.4e100d;
        e *= e;
        e -= 2d;
      }
      sw.stop();
      // System.out.println(sw.elapsedSeconds());
    } while (sw.elapsedMilliseconds() < MINTIME);


    // just here to make sure that not all computations on the local variables
    // are deleted by a compiler detecting that the result computed will not be
    // used later on
    fakeResult = e;


    return Double.valueOf(4d * c * OPSDONE / sw.elapsedSeconds() * 1.0e-6)
        .longValue();
  }

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    // the counter used to find out how many loop passes had to be executed
    // before the minTime had been exceeded
    int c = 0;


    // stop watch used to find out the number of milliseconds elapsed
    StopWatch sw = new StopWatch();
    long l = 0;


    do {


      c++;
      sw.start();
      for (int i = 0; i < OPS; i++) {
        l /= 3l;
        l += 100987988798789l;
        l *= l;
        l -= 2l;
      }
      sw.stop();
    } while (sw.elapsedMilliseconds() < MINTIME);


    // just here to make sure that not all computations on the local variables
    // are deleted by a compiler detecting that the result computed will not be
    // used later on
    fakeResult = Double.valueOf(l);


    return Double.valueOf(4d * c * OPSDONE / sw.elapsedSeconds() * 1.0e-6)
        .longValue();


  }

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    // the counter used to find out how many loop passes had to be executed
    // before the minTime had been exceeded
    int c = 0;


    // stop watch used to find out the number of milliseconds elapsed
    StopWatch sw = new StopWatch();


    int il = 0;


    do {
      c++;


      sw.start();
      for (int i = 0; i < OPS; i++) {
        il /= 3;
        il += 10098;
        il *= il;
        il -= 2;
      }
      sw.stop();
    } while (sw.elapsedMilliseconds() < MINTIME);


    // just here to make sure that not all computations on the local variables
    // are deleted by a compiler detecting that the result computed will not be
    // used later on
    fakeResult = Double.valueOf(il);


    return Double.valueOf(4d * c * OPSDONE / sw.elapsedSeconds() * 1.0e-6)
        .longValue();


  }

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org.jamesii.asf.integration.PerformanceExplorationTask

org.jamesii.asf.integration.SelectorDeploymentTask

org.jamesii.asf.portfolios.ga.TestGeneticAlgorithmPortfolioSelector

org.jamesii.core.data.runtime.rowset.FileLineIteratorTest

org.jamesii.core.experiments.BaseExperiment

org.jamesii.core.simulation.launch.BenchmarkLauncher

org.jamesii.core.simulation.launch.InteractiveConsole

org.jamesii.core.util.eventset.EventSetTest

org.jamesii.core.util.info.benchmark.simple.SimpleBenchmark

org.jamesii.core.util.misc.TimeSpan

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