def _test_metrics(self, result_func, metric, mode):
scheduler = AsyncHyperBandScheduler(grace_period=1,
time_attr="training_iteration",
metric=metric,
mode=mode,
brackets=1)
t1 = Trial("PPO") # mean is 450, max 900, t_max=10
t2 = Trial("PPO") # mean is 450, max 450, t_max=5
scheduler.on_trial_add(None, t1)
scheduler.on_trial_add(None, t2)
for i in range(10):
self.assertEqual(
scheduler.on_trial_result(None, t1, result_func(i, i * 100)),
TrialScheduler.CONTINUE)
for i in range(5):
self.assertEqual(
scheduler.on_trial_result(None, t2, result_func(i, 450)),
TrialScheduler.CONTINUE)
scheduler.on_trial_complete(None, t1, result_func(10, 1000))
self.assertEqual(
scheduler.on_trial_result(None, t2, result_func(5, 450)),
TrialScheduler.CONTINUE)
self.assertEqual(
scheduler.on_trial_result(None, t2, result_func(6, 0)),
TrialScheduler.CONTINUE)
def testAlternateMetrics(self):
def result2(t, rew):
return dict(training_iteration=t, neg_mean_loss=rew)
scheduler = AsyncHyperBandScheduler(
grace_period=1,
time_attr='training_iteration',
reward_attr='neg_mean_loss',
brackets=1)
t1 = Trial("PPO") # mean is 450, max 900, t_max=10
t2 = Trial("PPO") # mean is 450, max 450, t_max=5
scheduler.on_trial_add(None, t1)
scheduler.on_trial_add(None, t2)
for i in range(10):
self.assertEqual(
scheduler.on_trial_result(None, t1, result2(i, i * 100)),
TrialScheduler.CONTINUE)
for i in range(5):
self.assertEqual(
scheduler.on_trial_result(None, t2, result2(i, 450)),
TrialScheduler.CONTINUE)
scheduler.on_trial_complete(None, t1, result2(10, 1000))
self.assertEqual(
scheduler.on_trial_result(None, t2, result2(5, 450)),
TrialScheduler.CONTINUE)
self.assertEqual(
scheduler.on_trial_result(None, t2, result2(6, 0)),
TrialScheduler.CONTINUE)
def testAlternateMetrics(self):
def result2(t, rew):
return dict(training_iteration=t, neg_mean_loss=rew)
scheduler = AsyncHyperBandScheduler(
grace_period=1,
time_attr='training_iteration',
reward_attr='neg_mean_loss',
brackets=1)
t1 = Trial("PPO") # mean is 450, max 900, t_max=10
t2 = Trial("PPO") # mean is 450, max 450, t_max=5
scheduler.on_trial_add(None, t1)
scheduler.on_trial_add(None, t2)
for i in range(10):
self.assertEqual(
scheduler.on_trial_result(None, t1, result2(i, i * 100)),
TrialScheduler.CONTINUE)
for i in range(5):
self.assertEqual(
scheduler.on_trial_result(None, t2, result2(i, 450)),
TrialScheduler.CONTINUE)
scheduler.on_trial_complete(None, t1, result2(10, 1000))
self.assertEqual(
scheduler.on_trial_result(None, t2, result2(5, 450)),
TrialScheduler.CONTINUE)
self.assertEqual(
scheduler.on_trial_result(None, t2, result2(6, 0)),
TrialScheduler.CONTINUE)
def testAsyncHBOnComplete(self):
scheduler = AsyncHyperBandScheduler(max_t=10, brackets=1)
t1, t2 = self.basicSetup(scheduler)
t3 = Trial("PPO")
scheduler.on_trial_add(None, t3)
scheduler.on_trial_complete(None, t3, result(10, 1000))
self.assertEqual(scheduler.on_trial_result(None, t2, result(101, 0)),
TrialScheduler.STOP)
def testAsyncHBOnComplete(self):
scheduler = AsyncHyperBandScheduler(max_t=10, brackets=1)
t1, t2 = self.basicSetup(scheduler)
t3 = Trial("PPO")
scheduler.on_trial_add(None, t3)
scheduler.on_trial_complete(None, t3, result(10, 1000))
self.assertEqual(
scheduler.on_trial_result(None, t2, result(101, 0)),
TrialScheduler.STOP)
def testAsyncHBUsesPercentile(self):
scheduler = AsyncHyperBandScheduler(
grace_period=1, max_t=10, reduction_factor=2, brackets=1)
t1, t2 = self.basicSetup(scheduler)
scheduler.on_trial_complete(None, t1, result(10, 1000))
scheduler.on_trial_complete(None, t2, result(10, 1000))
t3 = Trial("PPO")
scheduler.on_trial_add(None, t3)
self.assertEqual(
scheduler.on_trial_result(None, t3, result(1, 260)),
TrialScheduler.STOP)
self.assertEqual(
scheduler.on_trial_result(None, t3, result(2, 260)),
TrialScheduler.STOP)
def testAsyncHBUsesPercentile(self):
scheduler = AsyncHyperBandScheduler(grace_period=1,
max_t=10,
reduction_factor=2,
brackets=1)
t1, t2 = self.basicSetup(scheduler)
scheduler.on_trial_complete(None, t1, result(10, 1000))
scheduler.on_trial_complete(None, t2, result(10, 1000))
t3 = Trial("PPO")
scheduler.on_trial_add(None, t3)
self.assertEqual(scheduler.on_trial_result(None, t3, result(1, 260)),
TrialScheduler.STOP)
self.assertEqual(scheduler.on_trial_result(None, t3, result(2, 260)),
TrialScheduler.STOP)
def testAsyncHBGracePeriod(self):
scheduler = AsyncHyperBandScheduler(grace_period=2.5,
reduction_factor=3,
brackets=1)
t1, t2 = self.basicSetup(scheduler)
scheduler.on_trial_complete(None, t1, result(10, 1000))
scheduler.on_trial_complete(None, t2, result(10, 1000))
t3 = Trial("PPO")
scheduler.on_trial_add(None, t3)
self.assertEqual(scheduler.on_trial_result(None, t3, result(1, 10)),
TrialScheduler.CONTINUE)
self.assertEqual(scheduler.on_trial_result(None, t3, result(2, 10)),
TrialScheduler.CONTINUE)
self.assertEqual(scheduler.on_trial_result(None, t3, result(3, 10)),
TrialScheduler.STOP)
def testAsyncHBGracePeriod(self):
scheduler = AsyncHyperBandScheduler(
grace_period=2.5, reduction_factor=3, brackets=1)
t1, t2 = self.basicSetup(scheduler)
scheduler.on_trial_complete(None, t1, result(10, 1000))
scheduler.on_trial_complete(None, t2, result(10, 1000))
t3 = Trial("PPO")
scheduler.on_trial_add(None, t3)
self.assertEqual(
scheduler.on_trial_result(None, t3, result(1, 10)),
TrialScheduler.CONTINUE)
self.assertEqual(
scheduler.on_trial_result(None, t3, result(2, 10)),
TrialScheduler.CONTINUE)
self.assertEqual(
scheduler.on_trial_result(None, t3, result(3, 10)),
TrialScheduler.STOP)