From cef97086e881400270141cdf7b22ef68948b3597 Mon Sep 17 00:00:00 2001
From: Jonathan Herman <hermanjl@cs.unc.edu>
Date: Thu, 7 Mar 2013 15:06:25 -0500
Subject: Seperated BaseGenerator into EdfGenerator and its superclass
 Generator.

---
 gen/edf_generators.py | 90 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 gen/edf_generators.py

diff --git a/gen/edf_generators.py b/gen/edf_generators.py
new file mode 100644
index 0000000..6cca933
--- /dev/null
+++ b/gen/edf_generators.py
@@ -0,0 +1,90 @@
+import generator as gen
+import random
+import run.litmus_util as lu
+import schedcat.generator.tasks as tasks
+
+class EdfGenerator(gen.Generator):
+    '''Creates sporadic task sets with the most common Litmus options.'''
+    def __init__(self, name, templates, options, params):
+        super(EdfGenerator, self).__init__(name, templates,
+                                           self.__make_options(params) + options,
+                                           params)
+
+    def __make_options(self, params):
+        '''Return generic EDF options.'''
+        if 'cpus' in params:
+            cpus = min(map(int, params['cpus']))
+        else:
+            cpus = lu.num_cpus()
+
+        return [gen.GenOption('num_tasks', int, range(cpus, 5*cpus, cpus),
+                              'Number of tasks per experiment.'),
+                gen.Generator._dist_option('utils', ['uni-medium'],
+                                           gen.NAMED_UTILIZATIONS,
+                                           'Task utilization distributions.'),
+                gen.Generator._dist_option('periods', ['harmonic'],
+                                           gen.NAMED_PERIODS,
+                                           'Task period distributions.')]
+
+    def _create_exp(self, exp_params):
+        '''Create a single experiment with @exp_params in @out_dir.'''
+        pdist = self._create_dist('period',
+                                  exp_params['periods'],
+                                  gen.NAMED_PERIODS)
+        udist = self._create_dist('utilization',
+                                  exp_params['utils'],
+                                  gen.NAMED_UTILIZATIONS)
+        tg = tasks.TaskGenerator(period=pdist, util=udist)
+
+        ts = []
+        tries = 0
+        while len(ts) != exp_params['num_tasks'] and tries < 5:
+            ts = tg.make_task_set(max_tasks = exp_params['num_tasks'])
+            tries += 1
+        if len(ts) != exp_params['num_tasks']:
+            print("Failed to create task set with parameters: %s" % exp_params)
+
+        self._customize(ts, exp_params)
+
+        exp_params['task_set'] = ts
+        self._write_schedule(exp_params)
+
+        del exp_params['task_set']
+        del exp_params['num_tasks']
+        self._write_params(exp_params)
+
+    def _customize(self, taskset, exp_params):
+        '''Configure a generated taskset with extra parameters.'''
+        pass
+
+
+class PartitionedGenerator(EdfGenerator):
+    def __init__(self, name, templates, options, params):
+        super(PartitionedGenerator, self).__init__(name,
+            templates + [gen.TP_PART_TASK], options, params)
+
+    def _customize(self, taskset, exp_params):
+        start = 1 if exp_params['release_master'] else 0
+        # Random partition for now: could do a smart partitioning
+        for t in taskset:
+            t.cpu = random.randint(start, exp_params['cpus'] - 1)
+
+class PedfGenerator(PartitionedGenerator):
+    def __init__(self, params={}):
+        super(PedfGenerator, self).__init__("PSN-EDF", [], [], params)
+
+class CedfGenerator(PartitionedGenerator):
+    TP_CLUSTER = "plugins/C-EDF/cluster{$level}"
+    CLUSTER_OPTION = gen.GenOption('level', ['L2', 'L3', 'All'], ['L2'],
+                                   'Cache clustering level.',)
+
+    def __init__(self, params={}):
+        super(CedfGenerator, self).__init__("C-EDF",
+                                            [CedfGenerator.TP_CLUSTER],
+                                            [CedfGenerator.CLUSTER_OPTION],
+                                            params)
+
+class GedfGenerator(EdfGenerator):
+    def __init__(self, params={}):
+        super(GedfGenerator, self).__init__("GSN-EDF", [gen.TP_GLOB_TASK],
+                                            [], params)
-- 
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