def init_model(version=0.9, download_dir="./301model"):
# Note: Uses 0.9 as the default models, switch to 1.0 to use 1.0 models
models_0_9_dir = os.path.join(download_dir, 'nb_models_0.9')
model_paths_0_9 = {
model_name: os.path.join(models_0_9_dir, '{}_v0.9'.format(model_name))
for model_name in ['xgb', 'gnn_gin', 'lgb_runtime']
}
models_1_0_dir = os.path.join(download_dir, 'nb_models_1.0')
model_paths_1_0 = {
model_name: os.path.join(models_1_0_dir, '{}_v1.0'.format(model_name))
for model_name in ['xgb', 'gnn_gin', 'lgb_runtime']
}
model_paths = model_paths_0_9 if version == '0.9' else model_paths_1_0
# If the models are not available at the paths, automatically download
# the models
# Note: If you would like to provide your own model locations, comment this out
if not all(os.path.exists(model) for model in model_paths.values()):
nb.download_models(version=version,
delete_zip=True,
download_dir=download_dir)
# Load the performance surrogate model
# NOTE: Loading the ensemble will set the seed to the same as used during training (logged in the model_configs.json)
# NOTE: Defaults to using the default model download path
ensemble_dir_performance = model_paths['xgb']
performance_model = nb.load_ensemble(ensemble_dir_performance)
# Load the runtime surrogate model
# NOTE: Defaults to using the default model download path
ensemble_dir_runtime = model_paths['lgb_runtime']
runtime_model = nb.load_ensemble(ensemble_dir_runtime)
return performance_model, runtime_model
def __init__(self,
data_folder=default_data_folder
):
self.dataset = 'cifar10'
self.search_space = 'nasbench_301'
ensemble_dir_performance = os.path.expanduser(data_folder + 'nb_models/xgb_v0.9')
performance_model = nb.load_ensemble(ensemble_dir_performance)
ensemble_dir_runtime = os.path.expanduser(data_folder + 'nb_models/lgb_runtime_v0.9')
runtime_model = nb.load_ensemble(ensemble_dir_runtime)
self.nasbench = [performance_model, runtime_model]
self.index_hash = None
def get_darts_api(dataset=None):
"""
Load the nb301 training data (which contains full learning curves) and the nb301 models
"""
import nasbench301
data_folder = os.path.join(get_project_root(), 'data/')
with open(os.path.join(data_folder, 'nb301_full_training.pickle'), 'rb') as f:
nb301_data = pickle.load(f)
nb301_arches = list(nb301_data.keys())
performance_model = nasbench301.load_ensemble(os.path.join(data_folder + 'nb301_models/xgb_v1.0'))
runtime_model = nasbench301.load_ensemble(os.path.join(data_folder + 'nb301_models/lgb_runtime_v1.0'))
nb301_model = [performance_model, runtime_model]
return {'nb301_data': nb301_data, 'nb301_arches':nb301_arches, 'nb301_model':nb301_model}
def __init__(
self,
dataset,
weights_manager,
objective,
rollout_type="nb301",
with_noise=True,
path=None,
schedule_cfg=None,
):
super(NB301Evaluator, self).__init__(dataset, weights_manager,
objective, rollout_type)
assert path is not None, "must specify benchmark path"
self.path = path
self.with_noise = with_noise
self.perf_model = nb.load_ensemble(path)
self.genotype_type = namedtuple(
"Genotype", "normal normal_concat reduce reduce_concat")
from collections import namedtuple
from ConfigSpace.read_and_write import json as cs_json
import nasbench301 as nb
# Load the performance surrogate model
#NOTE: Loading the ensemble will set the seed to the same as used during training (logged in the model_configs.json)
print("==> Loading performance surrogate model...")
ensemble_dir_performance = "/path/to/nb_models/gnn_gin_v0.9"
performance_model = nb.load_ensemble(ensemble_dir_performance)
# Load the runtime surrogate model
print("==> Loading runtime surrogate model...")
ensemble_dir_runtime = "/path/to/nb_models/lgb_runtime_v0.9"
runtime_model = nb.load_ensemble(ensemble_dir_runtime)
# Option 1: Create a DARTS genotype
print("==> Creating test configs...")
Genotype = namedtuple('Genotype', 'normal normal_concat reduce reduce_concat')
genotype_config = Genotype(normal=[('sep_conv_3x3', 0), ('sep_conv_3x3', 1),
('sep_conv_3x3', 0), ('sep_conv_3x3', 1),
('sep_conv_3x3', 1), ('skip_connect', 0),
('skip_connect', 0), ('dil_conv_3x3', 2)],
normal_concat=[2, 3, 4, 5],
reduce=[('max_pool_3x3', 0), ('max_pool_3x3', 1),
('skip_connect', 2), ('max_pool_3x3', 1),
('max_pool_3x3', 0), ('skip_connect', 2),
('skip_connect', 2), ('max_pool_3x3', 1)],
reduce_concat=[2, 3, 4, 5])
def main(args):
path1 = os.path.abspath(sys.argv[1])
path2 = os.path.abspath(sys.argv[2])
dirname1 = os.path.dirname(path1)
dirname2 = os.path.dirname(path2)
resultspath = os.path.join(dirname1, 'results.json')
results1 = parse(path1)
results2 = parse(path2)
print('Loading nasbench models')
current_dir = os.path.dirname(os.path.abspath(__file__))
model_dir = os.path.join(current_dir, 'nb_models')
models = {
'xgb_performance': os.path.join(model_dir, 'xgb_v1.0'),
'gnngin_performance': os.path.join(model_dir, 'gnn_gin_v1.0'),
'lgb_runtime': os.path.join(model_dir, 'lgb_runtime_v1.0')
}
xgb_performance = nb.load_ensemble(models['xgb_performance'])
gnngin_performance = nb.load_ensemble(models['gnngin_performance'])
lgb_runtime = nb.load_ensemble(models['lgb_runtime'])
results1['xgb_performance'] = [
xgb_performance.predict(config=genome,
representation='genotype',
with_noise=True)
for genome in results1['genotype']
]
results1['gnngin_performance'] = [
gnngin_performance.predict(config=genome,
representation='genotype',
with_noise=True)
for genome in results1['genotype']
]
results1['lgb_runtime'] = [
lgb_runtime.predict(config=genome,
representation='genotype',
with_noise=True) for genome in results1['genotype']
]
results2['xgb_performance'] = [
xgb_performance.predict(config=genome,
representation='genotype',
with_noise=True)
for genome in results2['genotype']
]
results2['gnngin_performance'] = [
gnngin_performance.predict(config=genome,
representation='genotype',
with_noise=True)
for genome in results2['genotype']
]
results2['lgb_runtime'] = [
lgb_runtime.predict(config=genome,
representation='genotype',
with_noise=True) for genome in results2['genotype']
]
with open(resultspath, 'w') as resultsfile:
results1['genotype'] = list(map(str, results1['genotype']))
results2['genotype'] = list(map(str, results2['genotype']))
results = {'darts': results1, 'fft': results2}
json.dump(results, resultsfile)
# Plot the results
fig, (ax1, ax2) = plt.subplots(1, 2)
for t in ['darts', 'fft']:
ax1.plot(results[t]['epoch'], results[t]['train'], label=f'{t}_train')
ax1.plot(results[t]['epoch'], results[t]['valid'], label=f'{t}_valid')
ax2.plot(results[t]['epoch'],
results[t]['xgb_performance'],
label=f'{t}_xgb')
ax2.plot(results[t]['epoch'],
results[t]['gnngin_performance'],
label=f'{t}_gnngin')
ax1.legend()
ax2.legend()
plt.show()