minor changes, TestEnvironment modified for logging

src/main/java/mvd/jester/App.java

@@ -11,9 +11,9 @@ import mvd.jester.tests.TestEnvironment;
  */
 public class App {
     public static void main(String[] args) {
-        SystemSetup.Builder generator = new SystemSetup.Builder().setNumberOfProcessors(4);
+        SystemSetup.Builder builder = new SystemSetup.Builder().setNumberOfProcessors(8);
 
-        TestEnvironment te = new TestEnvironment(generator, 10000);
+        TestEnvironment te = new TestEnvironment(builder, 40000);
 
         te.registerTestInterface(SchmidMottok.class);
         te.registerTestInterface(MaiaBertogna.class);

src/main/java/mvd/jester/model/SystemSetup.java

@@ -74,6 +74,7 @@ public class SystemSetup {
         }
 
         private long randomNumberOfJobs() {
+            this.maxNumberOfJobs = 3 * this.numberOfProcessors / 2;
             return ThreadLocalRandom.current().nextLong(minNumberOfJobs, maxNumberOfJobs);
         }
 
@@ -93,10 +94,13 @@ public class SystemSetup {
             } else {
                 numberOfSegments = 1;
             }
+            long parallelNumberOfJobs = serial ? 1 : randomNumberOfJobs();
             for (int i = 0; i < numberOfSegments; ++i) {
-                serial = i % 2 == 0;
+                long numberOfJobs = 1;
+                if (i % 2 == 1) {
+                    numberOfJobs = parallelNumberOfJobs;
+                }
                 long wcet = randomWcet(period, numberOfSegments);
-                long numberOfJobs = serial ? 1 : randomNumberOfJobs();
                 segments.add(new Segment(wcet, numberOfJobs));
             }
             return new Task(period, segments);

src/main/java/mvd/jester/tests/AbstractTest.java

@@ -9,7 +9,7 @@ import mvd.jester.model.Task;
  */
 public abstract class AbstractTest implements TestInterface {
 
-    protected Map<Task, Long> responseTimes;
+    protected final Map<Task, Long> responseTimes;
 
     public AbstractTest() {
         this.responseTimes = new HashMap<Task, Long>();

src/main/java/mvd/jester/tests/MaiaBertogna.java

@@ -46,19 +46,18 @@ public class MaiaBertogna extends AbstractTest {
 
         do {
             previousResponseTime = responseTime;
-            long interference = 0;
+            long taskInterference = 0;
 
             for (Task t : systemSetup.getTasks()) {
                 if (t.getPeriod() < task.getPeriod()) {
                     long maxNumberOfJobsOfT = t.getMaximumParallelism();
                     for (int p = 0; p < maxNumberOfJobsOfT; ++p) {
-                        interference += Math.min(getTaskInterference(t, responseTime, p + 1),
+                        taskInterference += Math.min(getTaskInterference(t, responseTime, p + 1),
                                 responseTime - minimumWcet + 1);
                     }
                 }
             }
 
-            double taskInterference = (double) interference / systemSetup.getNumberOfProcessors();
             long selfInterference = 0;
 
             long maxNumberOfJobs = task.getMaximumParallelism();
@@ -67,7 +66,8 @@ public class MaiaBertogna extends AbstractTest {
                         Math.min(getSelfInterference(task, p + 1), responseTime - minimumWcet + 1);
             }
 
-            long totalInterference = (long) Math.floor(taskInterference + selfInterference);
+            long totalInterference = LongMath.divide(taskInterference + selfInterference,
+                    systemSetup.getNumberOfProcessors(), RoundingMode.FLOOR);
 
             responseTime = minimumWcet + totalInterference;
         } while (previousResponseTime != responseTime);
@@ -89,24 +89,28 @@ public class MaiaBertogna extends AbstractTest {
     }
 
     private long getTaskInterference(Task task, long interval, long parallelism) {
-        long responseTime = responseTimes.get(task);
-        long minWcet = getMinimumWcet(task);
-        long period = task.getPeriod();
-        long numberOfJobs =
-                (LongMath.divide(interval + responseTime - minWcet, period, RoundingMode.FLOOR)
-                        + 1);
-
-        long workload = 0;
-
-        for (Segment s : task.getSegments()) {
-            if (s.getNumberOfJobs() >= parallelism) {
-                workload += s.getJobWcet();
+        if (responseTimes.containsKey(task)) {
+            long responseTime = responseTimes.get(task);
+            long minWcet = getMinimumWcet(task);
+            long period = task.getPeriod();
+            long numberOfJobs =
+                    (LongMath.divide(interval + responseTime - minWcet, period, RoundingMode.FLOOR)
+                            + 1);
+
+            long workload = 0;
+
+            for (Segment s : task.getSegments()) {
+                if (s.getNumberOfJobs() >= parallelism) {
+                    workload += s.getJobWcet();
+                }
             }
-        }
 
-        long interference = numberOfJobs * workload;
+            long interference = numberOfJobs * workload;
 
-        return interference;
+            return interference;
+        } else {
+            throw new RuntimeException("Task was not found in task set!");
+        }
     }
 
     private long getMinimumWcet(Task task) {

src/main/java/mvd/jester/tests/SchmidMottok.java

@@ -72,14 +72,15 @@ public class SchmidMottok extends AbstractTest {
     private double getSelfInterference(Task task) {
         double interference = 0;
         long numberOfProcessors = systemSetup.getNumberOfProcessors();
+        long numberOfJobs = task.getMaximumParallelism() > numberOfProcessors ? numberOfProcessors
+                : task.getMaximumParallelism();
 
         for (Segment s : task.getSegments()) {
-            long numberOfJobs = s.getNumberOfJobs() > numberOfProcessors ? numberOfProcessors
-                    : s.getNumberOfJobs();
-            interference +=
-                    (double) (s.getNumberOfTasklets() - 1) * s.getTaskletWcet() / numberOfJobs;
+            interference += (double) (s.getNumberOfTasklets() - 1) * s.getTaskletWcet();
         }
 
+        interference /= numberOfJobs;
+
         return interference;
     }
 

src/main/java/mvd/jester/tests/TestEnvironment.java

 package mvd.jester.tests;
 
 import java.lang.reflect.Constructor;
+import java.time.LocalTime;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import mvd.jester.model.SystemSetup;
+import mvd.jester.utils.Logger;
 
 /**
  * TestEnvironment
@@ -36,17 +38,18 @@ public class TestEnvironment {
     }
 
     public void runTests() {
-        Map<AbstractTest, Long> testCases = new HashMap<>();
+        Set<AbstractTest> testCases = new HashSet<>();
+
+        Map<Long, Map<AbstractTest, Long>> results = new HashMap<>();
 
         for (Constructor<? extends AbstractTest> t : abstractTests) {
             try {
-                testCases.put(t.newInstance(this.systemSetup), (long) 0);
+                testCases.add(t.newInstance(this.systemSetup));
             } catch (Exception e) {
                 System.out.println("Ahhh SHIT!");
             }
         }
 
-
         long checkedTasksets = 0;
 
         while (checkedTasksets < numberOfTaskSets) {
@@ -58,9 +61,13 @@ public class TestEnvironment {
                     && checkedTasksets < numberOfTaskSets) {
                 checkedTasksets++;
 
-                for (AbstractTest t : testCases.keySet()) {
+                long roundedUtilization = (long) (utilization * 10);
+
+                for (AbstractTest t : testCases) {
                     if (t.runSchedulabilityCheck()) {
-                        testCases.computeIfPresent(t, (k, v) -> v + 1);
+                        results.computeIfAbsent(roundedUtilization,
+                                k -> new HashMap<AbstractTest, Long>())
+                                .compute(t, (k, v) -> (v == null) ? 1 : v + 1);
                     }
                 }
                 builder.addTask(systemSetup);
@@ -69,12 +76,36 @@ public class TestEnvironment {
             }
         }
 
+        logResults(testCases, results);
+    }
+
+    private void logResults(Set<AbstractTest> testCases,
+            Map<Long, Map<AbstractTest, Long>> results) {
+        LocalTime date = LocalTime.now();
+        Logger log = new Logger("results_" + systemSetup.getNumberOfProcessors() + "_"
+                + date.getHour() + ":" + date.getMinute() + ".txt");
+        String firstLine = new String("Utilization");
 
-        for (AbstractTest t : testCases.keySet()) {
-            System.out.println("Testcase " + t.getName() + " scheduled " + testCases.get(t) + " of "
-                    + numberOfTaskSets + " tasks!");
+        for (AbstractTest t : testCases) {
+            firstLine = firstLine + "\t" + t.getName();
         }
 
+        log.log(firstLine);
+
+        for (Long util : results.keySet()) {
+            String line = String.valueOf((double) util / 10);
+            Map<AbstractTest, Long> tests = results.get(util);
+
+            for (AbstractTest t : testCases) {
+                if (tests.containsKey(t)) {
+                    line += "\t" + tests.get(t);
+                } else {
+                    line += "\t" + "0";
+                }
+            }
+            log.log(line);
+        }
 
+        log.finalize();
     }
 }

src/main/java/mvd/jester/utils/Logger.java

+package mvd.jester.utils;
+
+import java.io.BufferedWriter;
+import java.io.FileWriter;
+import java.io.PrintWriter;
+
+/**
+ * Logger
+ */
+public class Logger {
+
+    private FileWriter fileWriter;
+    private BufferedWriter bufferedWriter;
+    private PrintWriter printWriter;
+
+    public Logger(String pathToFile) {
+        try {
+            fileWriter = new FileWriter(pathToFile, true);
+            bufferedWriter = new BufferedWriter(fileWriter);
+            printWriter = new PrintWriter(bufferedWriter);
+        } catch (Exception e) {
+            System.out.println("Could not create file!");
+        }
+    }
+
+
+    public void log(String line) {
+        printWriter.println(line);
+    }
+
+    public void finalize() {
+        try {
+            if (printWriter != null) {
+                printWriter.close(); // Will close bw and fw too
+            }
+            if (bufferedWriter != null) {
+                bufferedWriter.close(); // Will close fw too
+            }
+            if (fileWriter != null) {
+                fileWriter.close();
+            }
+        } catch (Exception e) {
+        }
+    }
+
+}