Added support for utilization based simulation.

run.py

@@ -14,9 +14,9 @@ def get_exp_cnt(path):
 
 def main():
     parser = argparse.ArgumentParser('Run all the scripts so everything works fine.')
-    parser.add_argument('experiments', type=int, nargs=1, default=1,
+    parser.add_argument('experiments', type=int, nargs='?', default=1,
                         help='The number of experiments to be run.')
-    parser.add_argument('utilization', type=float, nargs='?', default=1,
+    parser.add_argument('utilization', type=float, nargs='?',
                         help='The utilization for the experiments to be run.',
                         default=None)
 
@@ -32,7 +32,7 @@ def main():
     cnt = 0
     remain = args.experiments
     while remain > 0:
-        if parser.utilization is not None:
+        if args.utilization is not None:
             subprocess.call(['./tasksetgen.py', '--microseconds', '--uniform', '5',
                              '--utilization {}:{}'.format(args.utilization - 0.25, args.utilization + 0.25),
                             str(remain), 'experiments/ese2016_{}'.format(cnt),

tasksetgen.py

@@ -128,6 +128,9 @@ def main():
                         default='.')
     parser.add_argument('experiment_target', type=str, help='Output directory for experiments.', nargs='?',
                         default='.')
+
+    parser.add_argument('--utility', type=str, help='The utility for which tasksets should be generated. Is a range such as 2.5:3.5', nargs=1)
+
     parser.add_argument('--baseclock', type=str, default='system_clock',
                         nargs='?',
                         help='The clock which is to be used for the execution.')
@@ -174,16 +177,35 @@ def main():
     else:
         distribution = Distribution.uniform
 
+    utility = None
+    try:
+        utility_val = args.utility.split(':')
+        if len(utility_val > 3):
+            print('Invalid utility specified.', file=sys.sterr)
+            sys.exit(1)
+
+        utility = [float(util) for util in utility_val]
+    except AttributeError:
+        pass
+
     print('Generating tasks…', file=sys.stderr)
     tasksets = []
     while len(tasksets) < args.tasksetcount:
         taskset = []
+        if utility is None:
             while len(taskset) < args.cores + 1 or \
                   calc_utilization(taskset) <= args.cores and \
                   hyperperiod(taskset) < 300000: # Limit hyperperiod to 5 minutes
                 taskset.append(create_task(distribution))
                 if len(taskset) >= args.cores + 1:
                     tasksets.append(taskset)
+        else:
+            taskset_util = calc_utilization(taskset)
+            while taskset_util < utility[0] and taskset_util < utility[1]:
+                taskset.append(create_task(distribution))
+            if taskset_util < utility[1]:
+                if len(taskset) >= args.cores + 1:
+                    tasksets.append(taskset)
 
     now = datetime.datetime.now()