def extract_archs_benchmarks(benchmark_dir: str, search_space: SearchSpace) -> Dict[str, Dict]:
if search_space == SearchSpace.TOPOLOGY:
api = NATStopology(benchmark_dir, True, False)
elif search_space == SearchSpace.SIZE:
api = NATSsize(benchmark_dir, True, False)
else:
raise Exception("invalid search space")
datasets = {
'cifar10': 'CIFAR-10',
'cifar100': 'CIFAR-100',
'ImageNet16-120': 'ImageNet16-120'
}
if search_space == SearchSpace.TOPOLOGY:
nums_epochs = {
12: '12',
200: '200'
}
else:
nums_epochs = {
1: '01',
12: '12',
90: '90'
}
archs = {}
for arch_id in range(len(api)):
print(f'Architecture {arch_id} topology: {api.arch(arch_id)}')
arch_key = api.arch(arch_id)
archs[arch_key] = {}
# hack to free RAM
if arch_id != 0 and arch_id % 1000 == 0:
del api
if search_space == SearchSpace.TOPOLOGY:
api = NATStopology(benchmark_dir, True, False)
elif search_space == SearchSpace.SIZE:
api = NATSsize(benchmark_dir, True, False)
for dataset_id, dataset_name in datasets.items():
archs[arch_key][dataset_id] = {}
for num_epochs, num_epochs_str in nums_epochs.items():
arch_performance = api.get_more_info(arch_id, dataset_id, hp=num_epochs_str)
archs[arch_key][dataset_id][num_epochs] = { #[
# accuracy and time
#arch_performance['train-loss'], arch_performance['train-accuracy'], arch_performance['train-all-time'], arch_performance['train-all-time'], arch_performance['test-accuracy'], arch_performance['test-all-time']
"train_loss": arch_performance['train-loss'],
"train_accuracy": arch_performance['train-accuracy'],
"train_time": arch_performance['train-all-time'],
"test_loss": arch_performance['train-all-time'],
"test_accuracy": arch_performance['test-accuracy'],
"test_time": arch_performance['test-all-time'],
} # ]
return archs
def _test_nats_bench(benchmark_dir, is_tss, fake_random, verbose=False):
"""The main test entry for NATS-Bench."""
if is_tss:
api = NATStopology(benchmark_dir, True, verbose)
else:
api = NATSsize(benchmark_dir, True, verbose)
if fake_random:
test_indexes = [0, 11, 284]
else:
test_indexes = [random.randint(0, len(api) - 1) for _ in range(10)]
key2dataset = {
'cifar10': 'CIFAR-10',
'cifar100': 'CIFAR-100',
'ImageNet16-120': 'ImageNet16-120'
}
for index in test_indexes:
print('\n\nEvaluate the {:5d}-th architecture.'.format(index))
for key, dataset in key2dataset.items():
# Query the loss / accuracy / time for the `index`-th candidate
# architecture on CIFAR-10
# info is a dict, where you can easily figure out the meaning by key
info = api.get_more_info(index, key)
print(' -->> The performance on {:}: {:}'.format(dataset, info))
# Query the flops, params, latency. info is a dict.
info = api.get_cost_info(index, key)
print(' -->> The cost info on {:}: {:}'.format(dataset, info))
# Simulate the training of the `index`-th candidate:
validation_accuracy, latency, time_cost, current_total_time_cost = api.simulate_train_eval(
index, dataset=key, hp='12')
print(' -->> The validation accuracy={:}, latency={:}, '
'the current time cost={:} s, accumulated time cost={:} s'.
format(validation_accuracy, latency, time_cost,
current_total_time_cost))
# Print the configuration of the `index`-th architecture on CIFAR-10
config = api.get_net_config(index, key)
print(' -->> The configuration on {:} is {:}'.format(
dataset, config))
# Show the information of the `index`-th architecture
api.show(index)
with pytest.raises(ValueError):
api.get_more_info(100000, 'cifar10')
def create(file_path_or_dict, search_space, fast_mode=False, verbose=True):
"""Create the instead for NATS API.
Args:
file_path_or_dict: None or a file path or a directory path.
search_space: This is a string indicates the search space in NATS-Bench.
fast_mode: If True, we will not load all the data at initialization,
instead, the data for each candidate architecture will be loaded when
quering it; If False, we will load all the data during initialization.
verbose: This is a flag to indicate whether log additional information.
Raises:
ValueError: If not find the matched serach space description.
Returns:
The created NATS-Bench API.
"""
if search_space in NATS_BENCH_TSS_NAMEs:
return NATStopology(file_path_or_dict, fast_mode, verbose)
elif search_space in NATS_BENCH_SSS_NAMEs:
return NATSsize(file_path_or_dict, fast_mode, verbose)
else:
raise ValueError('invalid search space : {:}'.format(search_space))