def tune_fn():
mlflow.set_experiment(experiment_name=experiment_name)
optuna_search = OptunaSearch(metric="auroc", mode="max")
ax_search = AxSearch(metric="auroc", mode="max")
tune.run(objective,
name="mlflow_gbdt",
num_samples=65,
config={
"num_leaves": tune.randint(5, 95),
"learning_rate": tune.loguniform(1e-4, 1.0),
"n_estimators": tune.randint(100, 100000),
"subsample": tune.loguniform(0.01, 1.0),
"subsample_freq": tune.randint(1, 5),
"objective": "binary",
"reg_alpha": tune.loguniform(1e-4, 1.0),
"reg_lambda": tune.loguniform(1e-4, 1.0),
"tree_learner": "feature",
"feature_sel": 0,
"mlflow": {
"experiment_name": experiment_name,
"tracking_uri": mlflow.get_tracking_uri()
}
},
search_alg=optuna_search)
def set_algorithm(experiment_name, config):
'''
Configure search algorithm.
'''
if args.algorithm == 'hyperopt':
algorithm = HyperOptSearch(points_to_evaluate=best_params)
elif args.algorithm == 'ax':
ax_client = AxClient(enforce_sequential_optimization=False)
ax_client.create_experiment(name=experiment_name,
parameters=config,
objective_name="minimum",
minimize=True)
algorithm = AxSearch(ax_client=ax_client,
points_to_evaluate=best_params)
elif args.algorithm == 'nevergrad':
algorithm = NevergradSearch(
points_to_evaluate=best_params,
optimizer=ng.optimizers.registry["PortfolioDiscreteOnePlusOne"])
elif args.algorithm == 'optuna':
algorithm = OptunaSearch(points_to_evaluate=best_params,
seed=args.seed)
elif args.algorithm == 'pbt':
algorithm = PopulationBasedTraining(
time_attr="training_iteration",
perturbation_interval=args.perturbation,
hyperparam_mutations=config,
synch=True)
elif args.algorithm == 'random':
algorithm = BasicVariantGenerator(max_concurrent=args.jobs)
if args.algorithm not in ['random', 'pbt']:
algorithm = ConcurrencyLimiter(algorithm, max_concurrent=args.jobs)
return algorithm
def main():
parser = argparse.ArgumentParser()
parser.add_argument("--gpus")
parser.add_argument("--gpus-per-trial", type=float)
parser.add_argument("--num-epochs", type=int)
parser.add_argument("--num-samples", type=int)
parser.add_argument("--w2v", type=str)
args = parser.parse_args()
w2v_sd = torch.load(args.w2v)
gpus_per_trial = args.gpus_per_trial
trainable = tune.with_parameters(
train_model,
gpus=args.gpus,
w2v=w2v_sd,
num_epochs=args.num_epochs,
)
algo = AxSearch(max_concurrent=4)
scheduler = AsyncHyperBandScheduler()
analysis = tune.run(trainable,
resources_per_trial={
"cpu": 4,
"gpu": gpus_per_trial
},
metric="acc",
mode="max",
search_alg=algo,
scheduler=scheduler,
config=config,
num_samples=args.num_samples,
name="tune_w2v_lr")
print(analysis.best_config)
def main(data_path, experiment_path, model_path, params_path):
ray.init(address='auto')
data_path = os.path.abspath(data_path)
params_path = os.path.abspath(params_path)
model_path = os.path.abspath(model_path)
n_splits = 4
cfg = pickle.load(open(params_path, "rb"))
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
exp_config = {
**locals().copy(),
**cfg,
'objective': 'soft-boundary',
'net_name':'cicflow_mlp_2',
}
if exp_config['seed'] != -1:
random.seed(exp_config['seed'])
np.random.seed(exp_config['seed'])
torch.manual_seed(exp_config['seed'])
torch.cuda.manual_seed(exp_config['seed'])
torch.backends.cudnn.deterministic = True
dates = ['2019-11-08', '2019-11-09', '2019-11-11', '2019-11-12', '2019-11-13',
'2019-11-14', '2019-11-15','2019-11-16','2019-11-17','2019-11-18','2019-11-19']
ax = AxClient(enforce_sequential_optimization=False)
ax.create_experiment(
name="SVDDCICFlowExp",
parameters=[
{
"name": "dates",
"type": "choice",
"values": dates
},
],
objective_name="val_auc_pr",
)
search_alg = AxSearch(ax)
analysis = tune.run(OneDaySVDDCICFlowExp,
name="DriftSVDDCICFlowExp",
checkpoint_at_end=True,
checkpoint_freq=1,
stop={
"training_iteration": 1,
},
resources_per_trial={"gpu": 1},
num_samples=len(dates),
local_dir=experiment_path,
search_alg=search_alg,
config=exp_config)
print("Best config is:", analysis.get_best_config(metric="val_auc_pr"))
def testConvergenceAx(self):
from ray.tune.suggest.ax import AxSearch
np.random.seed(0)
searcher = AxSearch()
analysis = self._testConvergence(searcher, patience=10)
assert math.isclose(analysis.best_config["x"], 0, abs_tol=1e-5)
def set_basic_conf(self):
from ax.service.ax_client import AxClient
space = AxSearch.convert_search_space({
"width": tune.uniform(0, 20),
"height": tune.uniform(-100, 100)
})
from ax.modelbridge.generation_strategy import (
GenerationStep,
GenerationStrategy,
)
from ax.modelbridge.registry import Models
# set generation strategy to sobol to ensure reproductibility
try:
# ax-platform>=0.2.0
gs = GenerationStrategy(steps=[
GenerationStep(
model=Models.SOBOL,
num_trials=-1,
model_kwargs={"seed": 4321},
),
])
except TypeError:
# ax-platform<0.2.0
gs = GenerationStrategy(steps=[
GenerationStep(
model=Models.SOBOL,
num_arms=-1,
model_kwargs={"seed": 4321},
),
])
client = AxClient(random_seed=4321, generation_strategy=gs)
client.create_experiment(parameters=space,
objective_name="loss",
minimize=True)
def cost(space, reporter):
reporter(loss=(space["height"] - 14)**2 - abs(space["width"] - 3))
search_alg = AxSearch(ax_client=client)
return search_alg, cost
def testAx(self):
from ray.tune.suggest.ax import AxSearch
from ax.service.ax_client import AxClient
converted_config = AxSearch.convert_search_space(self.config)
client = AxClient()
client.create_experiment(
parameters=converted_config, objective_name=self.metric_name, minimize=False
)
searcher = AxSearch(ax_client=client)
self._save(searcher)
client = AxClient()
client.create_experiment(
parameters=converted_config, objective_name=self.metric_name, minimize=False
)
searcher = AxSearch(ax_client=client)
self._restore(searcher)
def testAx(self):
from ray.tune.suggest.ax import AxSearch
from ax.service.ax_client import AxClient
converted_config = AxSearch.convert_search_space(self.config)
# At least one nan, inf, -inf and float
client = AxClient(random_seed=4321)
client.create_experiment(parameters=converted_config,
objective_name="_metric")
searcher = AxSearch(ax_client=client, metric="_metric", mode="max")
out = tune.run(_invalid_objective,
search_alg=searcher,
metric="_metric",
mode="max",
num_samples=4,
reuse_actors=False)
best_trial = out.best_trial
self.assertLessEqual(best_trial.config["report"], 2.0)
def raytune_ax_train(model_params: dict, config_params: dict):
depth = [int(d) for d in config_params['ht_depth_range'].split(',')]
features = [
float(d) for d in config_params['ht_features_range'].split(',')
]
estimators = [int(d) for d in config_params['ht_est_range'].split(',')]
experiments = config_params['ht_experiments']
ax = AxClient(enforce_sequential_optimization=False)
ax.create_experiment(name="hpo_experiment",
parameters=[{
"name": "max_depth",
"type": "range",
"bounds": depth,
"parameter_type": ParameterType.INT
}, {
"name": "max_features",
"type": "range",
"bounds": features,
"parameter_type": ParameterType.FLOAT
}, {
"name": "n_estimators",
"type": "range",
"bounds": estimators,
"parameter_type": ParameterType.INT
}],
objective_name="accuracy",
minimize=False)
tune.run(
run_or_experiment=lambda parameters: ax_train_proxy(
model_params=model_params,
config_params=config_params,
ax_params=parameters),
num_samples=experiments,
search_alg=AxSearch(
ax), # Note that the argument here is the `AxClient`.
verbose=
1, # Set this level to 1 to see status updates and to 2 to also see trial results.
# To use GPU, specify: resources_per_trial={"gpu": 1}.
resources_per_trial={"gpu": 1} if
('GPU' in config_params['compute']) else {"cpu": 8})
print(f"FINISHED RAY TUNE RUNE", flush=True)
best_parameters, best_values = ax.get_best_parameters()
means, covariances = best_values
print("Ax Optimization Results:", flush=True)
print(best_parameters, flush=True)
print(best_values, flush=True)
return means['accuracy']
def testCreateSearcher(self):
kwargs = {"metric": "metric_foo", "mode": "min"}
searcher_ax = "ax"
shim_searcher_ax = tune.create_searcher(searcher_ax, **kwargs)
real_searcher_ax = AxSearch(space=[], **kwargs)
assert type(shim_searcher_ax) is type(real_searcher_ax)
searcher_hyperopt = "hyperopt"
shim_searcher_hyperopt = tune.create_searcher(searcher_hyperopt,
**kwargs)
real_searcher_hyperopt = HyperOptSearch({}, **kwargs)
assert type(shim_searcher_hyperopt) is type(real_searcher_hyperopt)
def main(data_path, load_model, ratio_known_normal, ratio_known_outlier, seed,
optimizer_name, validation, lr, n_epochs, lr_milestone, batch_size,
weight_decay, pretrain, ae_optimizer_name, ae_lr, ae_n_epochs,
ae_lr_milestone, ae_batch_size, ae_weight_decay, num_threads,
n_jobs_dataloader, normal_class, known_outlier_class,
n_known_outlier_classes):
ray.init(address='auto')
data_path = os.path.abspath(data_path)
n_splits = 5
kf = KFold(n_splits)
r = np.array(range(_get_len(data_path)))
kf_idx = [i for i in kf.split(r)]
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
exp_config = {
**locals().copy(),
'net_name': 'nsl_kdd_mlp',
}
if exp_config['seed'] != -1:
random.seed(exp_config['seed'])
np.random.seed(exp_config['seed'])
torch.manual_seed(exp_config['seed'])
torch.cuda.manual_seed(exp_config['seed'])
torch.backends.cudnn.deterministic = True
ax = AxClient(enforce_sequential_optimization=False)
ax.create_experiment(
name="SVDDKDDExperiment",
parameters=[
{
"name": "lr",
"type": "range",
"bounds": [1e-6, 0.4],
"log_scale": True
},
{
"name": "nu",
"type": "range",
"bounds": [0.0, 0.2]
},
{
"name": "objective",
"type": "choice",
"values": ['one-class', 'soft-boundary']
},
{
"name": "pretrain",
"type": "choice",
"values": [True, False]
},
],
objective_name="val_auc_pr",
)
search_alg = AxSearch(ax)
re_search_alg = Repeater(search_alg, repeat=n_splits)
sched = ASHAScheduler(time_attr='training_iteration',
grace_period=10,
metric="val_auc_pr")
analysis = tune.run(SVDDKDDExp,
name="SVDDKDDExp",
checkpoint_at_end=True,
checkpoint_freq=5,
stop={
"training_iteration": 100,
},
resources_per_trial={"gpu": 1},
num_samples=20,
search_alg=re_search_alg,
scheduler=sched,
config=exp_config)
print("Best config is:", analysis.get_best_config(metric="val_auc_pr"))
ray.init()
tune_kwargs = {
"num_samples": 10 if args.smoke_test else 50,
"config": {
"iterations": 100,
"x1": tune.uniform(0.0, 1.0),
"x2": tune.uniform(0.0, 1.0),
"x3": tune.uniform(0.0, 1.0),
"x4": tune.uniform(0.0, 1.0),
"x5": tune.uniform(0.0, 1.0),
"x6": tune.uniform(0.0, 1.0),
},
"stop": {
"timesteps_total": 100
}
}
algo = AxSearch(
max_concurrent=4,
metric="hartmann6",
mode="min",
parameter_constraints=["x1 + x2 <= 2.0"], # Optional.
outcome_constraints=["l2norm <= 1.25"], # Optional.
)
scheduler = AsyncHyperBandScheduler(metric="hartmann6", mode="min")
tune.run(easy_objective,
name="ax",
search_alg=algo,
scheduler=scheduler,
**tune_kwargs)
def _test_xgboost(method='BlendSearch'):
try:
import ray
except ImportError:
return
if method == 'BlendSearch':
from flaml import tune
else:
from ray import tune
search_space = {
# You can mix constants with search space objects.
"max_depth": tune.randint(1, 8) if method in [
"BlendSearch", "BOHB", "Optuna"] else tune.randint(1, 9),
"min_child_weight": tune.choice([1, 2, 3]),
"subsample": tune.uniform(0.5, 1.0),
"eta": tune.loguniform(1e-4, 1e-1)
}
max_iter = 10
for num_samples in [256]:
time_budget_s = 60 #None
for n_cpu in [8]:
start_time = time.time()
ray.init(num_cpus=n_cpu, num_gpus=0)
if method == 'BlendSearch':
analysis = tune.run(
train_breast_cancer,
init_config={
"max_depth": 1,
"min_child_weight": 3,
},
cat_hp_cost={
"min_child_weight": [6, 3, 2],
},
metric="eval-logloss",
mode="min",
max_resource=max_iter,
min_resource=1,
report_intermediate_result=True,
# You can add "gpu": 0.1 to allocate GPUs
resources_per_trial={"cpu": 1},
config=search_space,
local_dir='logs/',
num_samples=num_samples*n_cpu,
time_budget_s=time_budget_s,
use_ray=True)
else:
if 'ASHA' == method:
algo = None
elif 'BOHB' == method:
from ray.tune.schedulers import HyperBandForBOHB
from ray.tune.suggest.bohb import TuneBOHB
algo = TuneBOHB(max_concurrent=n_cpu)
scheduler = HyperBandForBOHB(max_t=max_iter)
elif 'Optuna' == method:
from ray.tune.suggest.optuna import OptunaSearch
algo = OptunaSearch()
elif 'CFO' == method:
from flaml import CFO
algo = CFO(points_to_evaluate=[{
"max_depth": 1,
"min_child_weight": 3,
}], cat_hp_cost={
"min_child_weight": [6, 3, 2],
})
elif 'Dragonfly' == method:
from ray.tune.suggest.dragonfly import DragonflySearch
algo = DragonflySearch()
elif 'SkOpt' == method:
from ray.tune.suggest.skopt import SkOptSearch
algo = SkOptSearch()
elif 'Nevergrad' == method:
from ray.tune.suggest.nevergrad import NevergradSearch
import nevergrad as ng
algo = NevergradSearch(optimizer=ng.optimizers.OnePlusOne)
elif 'ZOOpt' == method:
from ray.tune.suggest.zoopt import ZOOptSearch
algo = ZOOptSearch(budget=num_samples*n_cpu)
elif 'Ax' == method:
from ray.tune.suggest.ax import AxSearch
algo = AxSearch()
elif 'HyperOpt' == method:
from ray.tune.suggest.hyperopt import HyperOptSearch
algo = HyperOptSearch()
scheduler = None
if method != 'BOHB':
from ray.tune.schedulers import ASHAScheduler
scheduler = ASHAScheduler(
max_t=max_iter,
grace_period=1)
analysis = tune.run(
train_breast_cancer,
metric="eval-logloss",
mode="min",
# You can add "gpu": 0.1 to allocate GPUs
resources_per_trial={"cpu": 1},
config=search_space, local_dir='logs/',
num_samples=num_samples*n_cpu, time_budget_s=time_budget_s,
scheduler=scheduler, search_alg=algo)
ray.shutdown()
# # Load the best model checkpoint
# best_bst = xgb.Booster()
# best_bst.load_model(os.path.join(analysis.best_checkpoint,
# "model.xgb"))
best_trial = analysis.get_best_trial("eval-logloss","min","all")
accuracy = 1. - best_trial.metric_analysis["eval-error"]["min"]
logloss = best_trial.metric_analysis["eval-logloss"]["min"]
logger.info(f"method={method}")
logger.info(f"n_samples={num_samples*n_cpu}")
logger.info(f"time={time.time()-start_time}")
logger.info(f"Best model eval loss: {logloss:.4f}")
logger.info(f"Best model total accuracy: {accuracy:.4f}")
logger.info(f"Best model parameters: {best_trial.config}")
def main(dataset_name, net_name, xp_path, data_path, load_config, load_model,
ratio_known_normal, ratio_known_outlier, device, seed, optimizer_name,
validation, lr, n_epochs, lr_milestone, batch_size, weight_decay,
pretrain, ae_optimizer_name, ae_lr, ae_n_epochs, ae_lr_milestone,
ae_batch_size, ae_weight_decay, num_threads, n_jobs_dataloader,
normal_class, known_outlier_class, n_known_outlier_classes):
"""
Deep SAD, a method for deep semi-supervised anomaly detection.
:arg DATASET_NAME: Name of the dataset to load.
:arg NET_NAME: Name of the neural network to use.
:arg XP_PATH: Export path for logging the experiment.
:arg DATA_PATH: Root path of data.
"""
######################################################
# GLOBAL CONFIG #
######################################################
sys.path.append('../')
xp_path = os.path.abspath(xp_path)
data_path = os.path.abspath(data_path)
# Get configuration
cfg = Config(locals().copy())
# Set up logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(tune.__name__)
logger.setLevel(logging.INFO)
formatter = logging.Formatter(
'%(asctime)s - %(name)s - %(levelname)s - %(message)s')
log_file = xp_path + '/log.txt'
file_handler = logging.FileHandler(log_file)
file_handler.setLevel(logging.INFO)
file_handler.setFormatter(formatter)
logger.addHandler(file_handler)
# Print paths
logger.info('Log file is %s' % log_file)
logger.info('Data path is %s' % data_path)
logger.info('Export path is %s' % xp_path)
# Print experimental setup
logger.info('Dataset: %s' % dataset_name)
logger.info('Normal class: %d' % normal_class)
logger.info('Ratio of labeled normal train samples: %.2f' %
ratio_known_normal)
logger.info('Ratio of labeled anomalous samples: %.2f' %
ratio_known_outlier)
if n_known_outlier_classes == 1:
logger.info('Known anomaly class: %d' % known_outlier_class)
else:
logger.info('Number of known anomaly classes: %d' %
n_known_outlier_classes)
logger.info('Network: %s' % net_name)
if cfg.settings['seed'] != -1:
random.seed(cfg.settings['seed'])
np.random.seed(cfg.settings['seed'])
torch.manual_seed(cfg.settings['seed'])
torch.cuda.manual_seed(cfg.settings['seed'])
torch.backends.cudnn.deterministic = True
logger.info('Set seed to %d.' % cfg.settings['seed'])
######################################################
# EXP CONFIG #
######################################################
# Init ray
ray.init(address='auto')
ax = AxClient(enforce_sequential_optimization=False)
# Default device to 'cpu' if cuda is not available
ax.create_experiment(
name="cicflow_mlp_experiment",
parameters=[
{
"name": "lr",
"type": "range",
"bounds": [1e-6, 0.4],
"log_scale": True
},
{
"name": "pretrain",
"type": "choice",
"values": [False, True],
},
],
objective_name="mean_auc",
)
def mlp_trainable(parameterization, reporter):
return train_evaluate(parameterization,
reporter,
validation=validation,
data_path=data_path,
n_known_outlier_classes=n_known_outlier_classes,
ratio_known_normal=ratio_known_normal,
ratio_known_outlier=ratio_known_outlier,
cfg=cfg,
n_jobs_dataloader=n_jobs_dataloader,
net_name=net_name,
pretrain=pretrain)
tune.run(
mlp_trainable,
name="MLP Supervised",
num_samples=10,
resources_per_trial={'gpu': 1},
search_alg=AxSearch(
ax), # Note that the argument here is the `AxClient`.
verbose=
2, # Set this level to 1 to see status updates and to 2 to also see trial results.
# To use GPU, specify: resources_per_trial={"gpu": 1}.
)
best_parameters, values = ax.get_best_parameters()
best_parameters
def ray_tune(model_wrapper, job_config: ht.config, resume: bool = False):
"""Performs automatic hyper-parameters tuning with Ray"""
# initialize
tuner = job_config.tune.clone().tuner
log_dir = pathlib.Path(job_config.run.save_sub_dir) / "tmp_log"
log_dir.mkdir(parents=True, exist_ok=True)
# set up config
config = get_hypers_tune(job_config)
# set up scheduler
sched_class = getattr(schedulers, tuner.scheduler_class)
logger.info(f"Setting up scheduler: {tuner.scheduler_class}")
sched_config = tuner.scheduler.get_config_dict()
sched = sched_class(**sched_config)
# set up algorithm
algo_class = tuner.algo_class
logger.info(f"Setting up search algorithm: {tuner.algo_class}")
algo_config = tuner.algo.get_config_dict()
algo = None
if algo_class is None:
algo = None
elif algo_class == "AxSearch":
from ray.tune.suggest.ax import AxSearch
algo = AxSearch(**algo_config)
elif algo_class == "HyperOptSearch":
from ray.tune.suggest.hyperopt import HyperOptSearch
algo = HyperOptSearch(**algo_config)
elif algo_class == "HEBOSearch":
from ray.tune.suggest.hebo import HEBOSearch
algo = HEBOSearch(**algo_config)
else:
logger.error(f"Unsupported search algorithm: {algo_class}")
logger.info(f"Using default value None for search algorithm")
# set stopper
if tuner.stopper_class is None:
stop = None
else:
logger.info(f"Setting up stopper: {tuner.stopper_class}")
stop_class = getattr(ray.tune.stopper, tuner.stopper_class)
stop_config = tuner.stopper.get_config_dict()
stop = stop_class(**stop_config)
# set up extra run configs
run_config = (tuner.run.get_config_dict()
) # important: convert Hepy_Config class to dict
if not "raise_on_failed_trial" in run_config:
run_config["raise_on_failed_trial"] = False
tune_func = getattr(hep_model, model_wrapper._tune_fun_name)
# start tuning jobs
if os.name == "posix":
logger.info(f"Ignoring tune.tmp.tmp_dir setting on Unix OS")
ray.init(**(tuner.init.get_config_dict()))
else:
ray.init(
_temp_dir=str(job_config.tune.tmp_dir),
**(tuner.init.get_config_dict()),
)
analysis = tune.run(
tune_func,
name="ray_tunes",
stop=stop,
search_alg=algo,
scheduler=sched,
config=config,
local_dir=job_config.run.save_sub_dir,
resume=resume,
**run_config,
)
print("#### Best hyperparameters found were:")
print(analysis.best_config)
print(yaml.dump(analysis.best_config))
return analysis
help="Finish quickly for testing")
parser.add_argument("--server-address",
type=str,
default=None,
required=False,
help="The address of server to connect to if using "
"Ray Client.")
args, _ = parser.parse_known_args()
if args.server_address:
import ray
ray.init(f"ray://{args.server_address}")
algo = AxSearch(
max_concurrent=4,
parameter_constraints=["x1 + x2 <= 2.0"], # Optional.
outcome_constraints=["l2norm <= 1.25"], # Optional.
)
scheduler = AsyncHyperBandScheduler()
analysis = tune.run(
easy_objective,
name="ax",
metric="hartmann6", # provided in the 'easy_objective' function
mode="min",
search_alg=algo,
scheduler=scheduler,
num_samples=10 if args.smoke_test else 50,
config={
"iterations": 100,
"x1": tune.uniform(0.0, 1.0),
"x2": tune.uniform(0.0, 1.0),
def main(args):
utils.init_random()
exp_configs, tune_configs = utils.get_tune_configs(args.logdir)
hparams = {}
parameters = []
for param_subset, params in tune_configs.items():
hparams[param_subset] = []
for param, options in params.items():
parameters.append({'name': param, **options})
hparams[param_subset].append(param)
exp_configs['hparams'] = hparams
exp_configs['data_params']['subset'] = args.subset
exp_configs['data_params']['workers'] = args.ds_workers
max_epochs = 2 if args.smoke else args.max_epochs
num_samples = 2 if args.smoke else args.num_samples
exp_configs.update({'num_gpus': 1})
# ray.init()
ray.init(memory=2000 * 1024 * 1024,
object_store_memory=200 * 1024 * 1024,
driver_object_store_memory=100 * 1024 * 1024)
scheduler = AsyncHyperBandScheduler(time_attr="training_iteration",
metric="val_accuracy",
mode="max",
grace_period=5,
max_t=max(max_epochs, 5))
client = AxClient(enforce_sequential_optimization=True)
client.create_experiment(parameters=parameters,
objective_name='val_accuracy')
search_alg = AxSearch(client, max_concurrent=1, mode='max')
# search_alg = ConcurrencyLimiter(search_alg, max_concurrent=2)
reporter = CLIReporter()
reporter.add_metric_column("val_accuracy")
reporter.add_metric_column("train_loss")
trainable = TorchTrainer.as_trainable(
model_creator=utils.model_creator,
data_creator=utils.data_creator,
optimizer_creator=utils.optimizer_creator,
loss_creator=utils.loss_creator,
scheduler_creator=utils.scheduler_creator,
scheduler_step_freq="epoch",
use_gpu=True,
config={BATCH_SIZE: exp_configs['batch_size']},
num_workers=args.workers)
analysis = tune.run(trainable,
num_samples=num_samples,
config=exp_configs,
trial_name_creator=utils.trial_str_creator,
progress_reporter=reporter,
scheduler=scheduler,
search_alg=search_alg,
stop={"training_iteration": max_epochs},
local_dir=args.logdir,
checkpoint_freq=10,
checkpoint_at_end=True,
keep_checkpoints_num=3,
resume=args.resume,
checkpoint_score_attr='val_accuracy',
max_failures=2,
verbose=1)
def _test_distillbert(method='BlendSearch'):
max_num_epoch = 64
num_samples = -1
time_budget_s = 10800
search_space = {
# You can mix constants with search space objects.
"num_train_epochs": flaml.tune.loguniform(1, max_num_epoch),
"learning_rate": flaml.tune.loguniform(1e-6, 1e-4),
"adam_beta1": flaml.tune.uniform(0.8, 0.99),
"adam_beta2": flaml.tune.loguniform(98e-2, 9999e-4),
"adam_epsilon": flaml.tune.loguniform(1e-9, 1e-7),
}
start_time = time.time()
ray.init(num_cpus=4, num_gpus=4)
if 'ASHA' == method:
algo = None
elif 'BOHB' == method:
from ray.tune.schedulers import HyperBandForBOHB
from ray.tune.suggest.bohb import tuneBOHB
algo = tuneBOHB(max_concurrent=4)
scheduler = HyperBandForBOHB(max_t=max_num_epoch)
elif 'Optuna' == method:
from ray.tune.suggest.optuna import OptunaSearch
algo = OptunaSearch()
elif 'CFO' == method:
from flaml import CFO
algo = CFO(points_to_evaluate=[{
"num_train_epochs": 1,
}])
elif 'BlendSearch' == method:
from flaml import BlendSearch
algo = BlendSearch(points_to_evaluate=[{
"num_train_epochs": 1,
}])
elif 'Dragonfly' == method:
from ray.tune.suggest.dragonfly import DragonflySearch
algo = DragonflySearch()
elif 'SkOpt' == method:
from ray.tune.suggest.skopt import SkOptSearch
algo = SkOptSearch()
elif 'Nevergrad' == method:
from ray.tune.suggest.nevergrad import NevergradSearch
import nevergrad as ng
algo = NevergradSearch(optimizer=ng.optimizers.OnePlusOne)
elif 'ZOOpt' == method:
from ray.tune.suggest.zoopt import ZOOptSearch
algo = ZOOptSearch(budget=num_samples)
elif 'Ax' == method:
from ray.tune.suggest.ax import AxSearch
algo = AxSearch()
elif 'HyperOpt' == method:
from ray.tune.suggest.hyperopt import HyperOptSearch
algo = HyperOptSearch()
scheduler = None
if method != 'BOHB':
from ray.tune.schedulers import ASHAScheduler
scheduler = ASHAScheduler(max_t=max_num_epoch, grace_period=1)
scheduler = None
analysis = ray.tune.run(
train_distilbert,
metric=HP_METRIC,
mode=MODE,
# You can add "gpu": 1 to allocate GPUs
resources_per_trial={"gpu": 1},
config=search_space,
local_dir='test/logs/',
num_samples=num_samples,
time_budget_s=time_budget_s,
keep_checkpoints_num=1,
checkpoint_score_attr=HP_METRIC,
scheduler=scheduler,
search_alg=algo)
ray.shutdown()
best_trial = analysis.get_best_trial(HP_METRIC, MODE, "all")
metric = best_trial.metric_analysis[HP_METRIC][MODE]
logger.info(f"method={method}")
logger.info(f"n_trials={len(analysis.trials)}")
logger.info(f"time={time.time()-start_time}")
logger.info(f"Best model eval {HP_METRIC}: {metric:.4f}")
logger.info(f"Best model parameters: {best_trial.config}")
"name": "x3",
"type": "range",
"bounds": [0.0, 1.0],
},
{
"name": "x4",
"type": "range",
"bounds": [0.0, 1.0],
},
{
"name": "x5",
"type": "range",
"bounds": [0.0, 1.0],
},
{
"name": "x6",
"type": "range",
"bounds": [0.0, 1.0],
},
]
algo = AxSearch(
parameters=parameters,
objective_name="hartmann6",
max_concurrent=4,
minimize=True, # Optional, defaults to False.
parameter_constraints=["x1 + x2 <= 2.0"], # Optional.
outcome_constraints=["l2norm <= 1.25"], # Optional.
)
scheduler = AsyncHyperBandScheduler(reward_attr="hartmann6")
run(easy_objective, name="ax", search_alg=algo, **config)
def _test_xgboost(method="BlendSearch"):
try:
import ray
except ImportError:
return
if method == "BlendSearch":
from flaml import tune
else:
from ray import tune
search_space = {
"max_depth":
tune.randint(1, 9)
if method in ["BlendSearch", "BOHB", "Optuna"] else tune.randint(1, 9),
"min_child_weight":
tune.choice([1, 2, 3]),
"subsample":
tune.uniform(0.5, 1.0),
"eta":
tune.loguniform(1e-4, 1e-1),
}
max_iter = 10
for num_samples in [128]:
time_budget_s = 60
for n_cpu in [2]:
start_time = time.time()
# ray.init(address='auto')
if method == "BlendSearch":
analysis = tune.run(
train_breast_cancer,
config=search_space,
low_cost_partial_config={
"max_depth": 1,
},
cat_hp_cost={
"min_child_weight": [6, 3, 2],
},
metric="eval-logloss",
mode="min",
max_resource=max_iter,
min_resource=1,
scheduler="asha",
# You can add "gpu": 0.1 to allocate GPUs
resources_per_trial={"cpu": 1},
local_dir="logs/",
num_samples=num_samples * n_cpu,
time_budget_s=time_budget_s,
use_ray=True,
)
else:
if "ASHA" == method:
algo = None
elif "BOHB" == method:
from ray.tune.schedulers import HyperBandForBOHB
from ray.tune.suggest.bohb import TuneBOHB
algo = TuneBOHB(max_concurrent=n_cpu)
scheduler = HyperBandForBOHB(max_t=max_iter)
elif "Optuna" == method:
from ray.tune.suggest.optuna import OptunaSearch
algo = OptunaSearch()
elif "CFO" == method:
from flaml import CFO
algo = CFO(
low_cost_partial_config={
"max_depth": 1,
},
cat_hp_cost={
"min_child_weight": [6, 3, 2],
},
)
elif "CFOCat" == method:
from flaml.searcher.cfo_cat import CFOCat
algo = CFOCat(
low_cost_partial_config={
"max_depth": 1,
},
cat_hp_cost={
"min_child_weight": [6, 3, 2],
},
)
elif "Dragonfly" == method:
from ray.tune.suggest.dragonfly import DragonflySearch
algo = DragonflySearch()
elif "SkOpt" == method:
from ray.tune.suggest.skopt import SkOptSearch
algo = SkOptSearch()
elif "Nevergrad" == method:
from ray.tune.suggest.nevergrad import NevergradSearch
import nevergrad as ng
algo = NevergradSearch(optimizer=ng.optimizers.OnePlusOne)
elif "ZOOpt" == method:
from ray.tune.suggest.zoopt import ZOOptSearch
algo = ZOOptSearch(budget=num_samples * n_cpu)
elif "Ax" == method:
from ray.tune.suggest.ax import AxSearch
algo = AxSearch()
elif "HyperOpt" == method:
from ray.tune.suggest.hyperopt import HyperOptSearch
algo = HyperOptSearch()
scheduler = None
if method != "BOHB":
from ray.tune.schedulers import ASHAScheduler
scheduler = ASHAScheduler(max_t=max_iter, grace_period=1)
analysis = tune.run(
train_breast_cancer,
metric="eval-logloss",
mode="min",
# You can add "gpu": 0.1 to allocate GPUs
resources_per_trial={"cpu": 1},
config=search_space,
local_dir="logs/",
num_samples=num_samples * n_cpu,
time_budget_s=time_budget_s,
scheduler=scheduler,
search_alg=algo,
)
# # Load the best model checkpoint
# import os
# best_bst = xgb.Booster()
# best_bst.load_model(os.path.join(analysis.best_checkpoint,
# "model.xgb"))
best_trial = analysis.get_best_trial("eval-logloss", "min", "all")
accuracy = 1.0 - best_trial.metric_analysis["eval-error"]["min"]
logloss = best_trial.metric_analysis["eval-logloss"]["min"]
logger.info(f"method={method}")
logger.info(f"n_samples={num_samples*n_cpu}")
logger.info(f"time={time.time()-start_time}")
logger.info(f"Best model eval loss: {logloss:.4f}")
logger.info(f"Best model total accuracy: {accuracy:.4f}")
logger.info(f"Best model parameters: {best_trial.config}")
def main(data_path, experiment_path, load_model, ratio_known_normal,
ratio_known_outlier, seed, optimizer_name, validation, lr, n_epochs,
lr_milestone, batch_size, weight_decay, pretrain, ae_optimizer_name,
ae_lr, ae_n_epochs, ae_lr_milestone, ae_batch_size, ae_weight_decay,
num_threads, n_jobs_dataloader, normal_class, known_outlier_class,
n_known_outlier_classes):
ray.init(address='auto')
data_path = os.path.abspath(data_path)
n_splits = 4
period = np.array([
'2019-11-08', '2019-11-09', '2019-11-11', '2019-11-12', '2019-11-13',
'2019-11-14', '2019-11-15'
])
dates = period[:2]
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
exp_config = {**locals().copy(), 'objective': 'soft-boundary'}
if exp_config['seed'] != -1:
random.seed(exp_config['seed'])
np.random.seed(exp_config['seed'])
torch.manual_seed(exp_config['seed'])
torch.cuda.manual_seed(exp_config['seed'])
torch.backends.cudnn.deterministic = True
ax = AxClient(enforce_sequential_optimization=False)
ax.create_experiment(
name="SVDDCICFlowExp",
parameters=[
{
"name": "lr",
"type": "range",
"bounds": [1e-6, 0.1],
"log_scale": True
},
{
"name": "nu",
"type": "range",
"bounds": [0.005, 0.5]
},
{
"name": "net_name",
"type": "choice",
"values": ['cicflow_mlp', 'cicflow_mlp_2', 'cicflow_mlp_3']
},
{
"name": "weight_decay",
"type": "range",
"bounds": [1e-6, 0.01],
"log_scale": True
},
],
objective_name="val_auc_pr",
)
search_alg = AxSearch(ax)
analysis = tune.run(OneDaySVDDCICFlowExp,
name="OneDaySVDDCICFlowExp",
checkpoint_at_end=True,
checkpoint_freq=5,
stop={
"training_iteration": 50,
},
resources_per_trial={"gpu": 1},
num_samples=10,
local_dir=experiment_path,
search_alg=search_alg,
config=exp_config)
print("Best config is:", analysis.get_best_config(metric="val_auc_pr"))
def testConvertAx(self):
from ray.tune.suggest.ax import AxSearch
from ax.service.ax_client import AxClient
config = {
"a": tune.sample.Categorical([2, 3, 4]).uniform(),
"b": {
"x": tune.sample.Integer(0, 5).quantized(2),
"y": 4,
"z": tune.sample.Float(1e-4, 1e-2).loguniform()
}
}
converted_config = AxSearch.convert_search_space(config)
ax_config = [
{
"name": "a",
"type": "choice",
"values": [2, 3, 4]
},
{
"name": "b/x",
"type": "range",
"bounds": [0, 5],
"value_type": "int"
},
{
"name": "b/y",
"type": "fixed",
"value": 4
},
{
"name": "b/z",
"type": "range",
"bounds": [1e-4, 1e-2],
"value_type": "float",
"log_scale": True
},
]
client1 = AxClient(random_seed=1234)
client1.create_experiment(parameters=converted_config)
searcher1 = AxSearch(ax_client=client1)
client2 = AxClient(random_seed=1234)
client2.create_experiment(parameters=ax_config)
searcher2 = AxSearch(ax_client=client2)
config1 = searcher1.suggest("0")
config2 = searcher2.suggest("0")
self.assertEqual(config1, config2)
self.assertIn(config1["a"], [2, 3, 4])
self.assertIn(config1["b"]["x"], list(range(5)))
self.assertEqual(config1["b"]["y"], 4)
self.assertLess(1e-4, config1["b"]["z"])
self.assertLess(config1["b"]["z"], 1e-2)
searcher = AxSearch(metric="a", mode="max")
analysis = tune.run(_mock_objective,
config=config,
search_alg=searcher,
num_samples=1)
trial = analysis.trials[0]
assert trial.config["a"] in [2, 3, 4]
mixed_config = {"a": tune.uniform(5, 6), "b": tune.uniform(8, 9)}
searcher = AxSearch(space=mixed_config, metric="a", mode="max")
config = searcher.suggest("0")
self.assertTrue(5 <= config["a"] <= 6)
self.assertTrue(8 <= config["b"] <= 9)
def _test_roberta(method='BlendSearch'):
max_num_epoch = 100
num_samples = -1
time_budget_s = 3600
search_space = {
# You can mix constants with search space objects.
"num_train_epochs": flaml.tune.loguniform(1, max_num_epoch),
"learning_rate": flaml.tune.loguniform(1e-5, 3e-5),
"weight_decay": flaml.tune.uniform(0, 0.3),
"per_device_train_batch_size": flaml.tune.choice([16, 32, 64, 128]),
"seed": flaml.tune.choice([12, 22, 33, 42]),
}
start_time = time.time()
ray.init(num_cpus=4, num_gpus=4)
if 'ASHA' == method:
algo = None
elif 'BOHB' == method:
from ray.tune.schedulers import HyperBandForBOHB
from ray.tune.suggest.bohb import tuneBOHB
algo = tuneBOHB(max_concurrent=4)
scheduler = HyperBandForBOHB(max_t=max_num_epoch)
elif 'Optuna' == method:
from ray.tune.suggest.optuna import OptunaSearch
algo = OptunaSearch()
elif 'CFO' == method:
from flaml import CFO
algo = CFO(points_to_evaluate=[{
"num_train_epochs": 1,
"per_device_train_batch_size": 128,
}])
elif 'BlendSearch' == method:
from flaml import BlendSearch
algo = BlendSearch(
points_to_evaluate=[{
"num_train_epochs": 1,
"per_device_train_batch_size": 128,
}])
elif 'Dragonfly' == method:
from ray.tune.suggest.dragonfly import DragonflySearch
algo = DragonflySearch()
elif 'SkOpt' == method:
from ray.tune.suggest.skopt import SkOptSearch
algo = SkOptSearch()
elif 'Nevergrad' == method:
from ray.tune.suggest.nevergrad import NevergradSearch
import nevergrad as ng
algo = NevergradSearch(optimizer=ng.optimizers.OnePlusOne)
elif 'ZOOpt' == method:
from ray.tune.suggest.zoopt import ZOOptSearch
algo = ZOOptSearch(budget=num_samples)
elif 'Ax' == method:
from ray.tune.suggest.ax import AxSearch
algo = AxSearch(max_concurrent=3)
elif 'HyperOpt' == method:
from ray.tune.suggest.hyperopt import HyperOptSearch
algo = HyperOptSearch()
scheduler = None
if method != 'BOHB':
from ray.tune.schedulers import ASHAScheduler
scheduler = ASHAScheduler(max_t=max_num_epoch, grace_period=1)
scheduler = None
analysis = ray.tune.run(train_roberta,
metric=HP_METRIC,
mode=MODE,
resources_per_trial={
"gpu": 4,
"cpu": 4
},
config=search_space,
local_dir='logs/',
num_samples=num_samples,
time_budget_s=time_budget_s,
keep_checkpoints_num=1,
checkpoint_score_attr=HP_METRIC,
scheduler=scheduler,
search_alg=algo)
ray.shutdown()
best_trial = analysis.get_best_trial(HP_METRIC, MODE, "all")
metric = best_trial.metric_analysis[HP_METRIC][MODE]
logger.info(f"method={method}")
logger.info(f"n_trials={len(analysis.trials)}")
logger.info(f"time={time.time()-start_time}")
logger.info(f"Best model eval {HP_METRIC}: {metric:.4f}")
logger.info(f"Best model parameters: {best_trial.config}")
def main(data_path, experiment_path, load_model, ratio_known_normal,
ratio_known_outlier, seed, optimizer_name, validation, lr, n_epochs,
lr_milestone, batch_size, weight_decay, pretrain, ae_optimizer_name,
ae_lr, ae_n_epochs, ae_lr_milestone, ae_batch_size, ae_weight_decay,
num_threads, n_jobs_dataloader, normal_class, known_outlier_class,
n_known_outlier_classes):
ray.init(address='auto')
data_path = os.path.abspath(data_path)
n_splits = 4
period = np.array([
'2019-11-08', '2019-11-09', '2019-11-11', '2019-11-12', '2019-11-13',
'2019-11-14', '2019-11-15'
])
test_dates = period[-2:]
train_dates = get_train_val_split(period[:-2], validation, n_splits)
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
exp_config = {
**locals().copy(),
'net_name': 'cicflow_mlp',
}
if exp_config['seed'] != -1:
random.seed(exp_config['seed'])
np.random.seed(exp_config['seed'])
torch.manual_seed(exp_config['seed'])
torch.cuda.manual_seed(exp_config['seed'])
torch.backends.cudnn.deterministic = True
ax = AxClient(enforce_sequential_optimization=False)
ax.create_experiment(
name="SupervisedCICFlowExp",
parameters=[
{
"name": "lr",
"type": "range",
"bounds": [1e-6, 0.4],
"log_scale": True
},
{
"name": "weight_decay",
"type": "range",
"bounds": [1e-6, 1.0],
"log_scale": True
},
],
objective_name="val_f1",
)
search_alg = AxSearch(ax)
re_search_alg = Repeater(search_alg, repeat=n_splits)
sched = ASHAScheduler(time_attr='training_iteration',
grace_period=10,
metric="val_f1")
analysis = tune.run(SupervisedCICFlowExp,
name="SupervisedCICFlowExp",
checkpoint_at_end=True,
checkpoint_freq=5,
stop={
"training_iteration": 100,
},
resources_per_trial={"gpu": 1},
num_samples=30,
local_dir=experiment_path,
search_alg=re_search_alg,
scheduler=sched,
config=exp_config)
print("Best config is:", analysis.get_best_config(metric="val_f1"))
"type": "range",
"bounds": [0.0, 1.0],
},
{
"name": "x4",
"type": "range",
"bounds": [0.0, 1.0],
},
{
"name": "x5",
"type": "range",
"bounds": [0.0, 1.0],
},
{
"name": "x6",
"type": "range",
"bounds": [0.0, 1.0],
},
]
client = AxClient(enforce_sequential_optimization=False)
client.create_experiment(
parameters=parameters,
objective_name="hartmann6",
minimize=True, # Optional, defaults to False.
parameter_constraints=["x1 + x2 <= 2.0"], # Optional.
outcome_constraints=["l2norm <= 1.25"], # Optional.
)
algo = AxSearch(client, max_concurrent=4)
scheduler = AsyncHyperBandScheduler(reward_attr="hartmann6")
run(easy_objective, name="ax", search_alg=algo, **config)
ax_client.create_experiment(name="tune_RL",
parameters=parameters,
objective_name='episode_reward_mean',
minimize=False,
overwrite_existing_experiment=True)
# add scheduling of configurations, i.e. intensify solely
asha_scheduler = ASHAScheduler(time_attr='training_iteration',
metric='episode_reward_mean',
mode='max')
ray.init(num_cpus=args.ray_cpus)
ray.tune.run(evaluate_objective,
num_samples=RAY_TUNE_SAMPLES,
search_alg=AxSearch(ax_client),
scheduler=asha_scheduler,
verbose=2)
# get best parameters, retrain agent and log results for best agent
best_parameters, values = ax_client.get_best_parameters()
ray.shutdown()
env = NFVDeepMonitor(base_env, args.logs)
callback = MetricLoggingCallback()
eval_agent = agent(
**{
'policy': policy,
'env': env,
'verbose': 1,
