def test_cifar_convnet_error(device_id):
if cntk_device(device_id).type() != DeviceKind_GPU:
pytest.skip('test only runs on GPU')
try_set_default_device(cntk_device(device_id))
base_path = prepare_CIFAR10_data()
# change dir to locate data.zip correctly
os.chdir(base_path)
from _cntk_py import set_fixed_random_seed, force_deterministic_algorithms
set_fixed_random_seed(1)
force_deterministic_algorithms()
reader_train1 = create_reader(os.path.join(base_path, 'train_map.txt'),
os.path.join(base_path, 'CIFAR-10_mean.xml'),
False)
reader_test1 = create_reader(os.path.join(base_path, 'test_map.txt'),
os.path.join(base_path, 'CIFAR-10_mean.xml'),
False)
model1 = create_convnet_cifar10_model(num_classes=10)
train_loss1 = train_model(reader_train1,
reader_test1,
model1,
epoch_size=128,
max_epochs=1)
def test_cifar_convnet_error(device_id):
if cntk_device(device_id).type() != DeviceKind_GPU:
pytest.skip('test only runs on GPU')
set_default_device(cntk_device(device_id))
base_path = prepare_CIFAR10_data()
# change dir to locate data.zip correctly
os.chdir(base_path)
from _cntk_py import set_fixed_random_seed, force_deterministic_algorithms
set_fixed_random_seed(
1
) # BUGBUG: has no effect at present # TODO: remove debugging facilities once this all works
#force_deterministic_algorithms()
# TODO: do the above; they lead to slightly different results, so not doing it for now
reader_train = create_reader(os.path.join(base_path, 'train_map.txt'),
os.path.join(base_path, 'CIFAR-10_mean.xml'),
True)
reader_test = create_reader(os.path.join(base_path, 'test_map.txt'),
os.path.join(base_path, 'CIFAR-10_mean.xml'),
False)
model = create_convnet_cifar10_model(num_classes=10)
test_error = train_and_evaluate(reader_train,
reader_test,
model,
epoch_size=256,
max_epochs=1)
def test_cifar_convnet_error(device_id):
if cntk_device(device_id).type() != DeviceKind_GPU:
pytest.skip('test only runs on GPU')
try_set_default_device(cntk_device(device_id))
base_path = prepare_CIFAR10_data()
# change dir to locate data.zip correctly
os.chdir(base_path)
from _cntk_py import set_fixed_random_seed, force_deterministic_algorithms
set_fixed_random_seed(1)
force_deterministic_algorithms()
reader_train = create_reader(os.path.join(base_path, 'train_map.txt'),
os.path.join(base_path, 'CIFAR-10_mean.xml'),
False)
reader_test = create_reader(os.path.join(base_path, 'test_map.txt'),
os.path.join(base_path, 'CIFAR-10_mean.xml'),
False)
model = create_convnet_cifar10_model(num_classes=10)
train_loss, metric = train_model(reader_train,
reader_test,
model,
epoch_size=128,
max_epochs=5)
expected_loss_metric = (2.2963, 0.9062)
assert np.allclose((train_loss, metric),
expected_loss_metric,
atol=TOLERANCE_ABSOLUTE)
def test_cifar_convnet_error(device_id):
if cntk_device(device_id).type() != DeviceKind_GPU:
pytest.skip('test only runs on GPU')
set_default_device(cntk_device(device_id))
base_path = prepare_CIFAR10_data()
# change dir to locate data.zip correctly
os.chdir(base_path)
from _cntk_py import set_fixed_random_seed, force_deterministic_algorithms
set_fixed_random_seed(1) # BUGBUG: has no effect at present # TODO: remove debugging facilities once this all works
#force_deterministic_algorithms()
# TODO: do the above; they lead to slightly different results, so not doing it for now
reader_train = create_reader(os.path.join(base_path, 'train_map.txt'), os.path.join(base_path, 'CIFAR-10_mean.xml'), True)
reader_test = create_reader(os.path.join(base_path, 'test_map.txt'), os.path.join(base_path, 'CIFAR-10_mean.xml'), False)
model = create_convnet_cifar10_model(num_classes=10)
test_error = train_and_evaluate(reader_train, reader_test, model, epoch_size=256, max_epochs=1)
def create_conv_network():
# Input variables denoting the features and label data
feature_var = C.input_variable((num_channels, image_height, image_width))
label_var = C.input_variable((num_classes))
# apply model to input
scaled_input = C.element_times(C.constant(0.00390625), feature_var)
z = create_convnet_cifar10_model(num_classes)(scaled_input)
# loss and metric
ce = C.cross_entropy_with_softmax(z, label_var)
pe = C.classification_error(z, label_var)
C.logging.log_number_of_parameters(z) ; print()
return {
'feature': feature_var,
'label': label_var,
'ce' : ce,
'pe' : pe,
'output': z
}
def create_conv_network():
# Input variables denoting the features and label data
feature_var = C.input_variable((num_channels, image_height, image_width))
label_var = C.input_variable((num_classes))
# apply model to input
scaled_input = C.element_times(C.constant(0.00390625), feature_var)
z = create_convnet_cifar10_model(num_classes)(scaled_input)
# loss and metric
ce = C.cross_entropy_with_softmax(z, label_var)
pe = C.classification_error(z, label_var)
C.logging.log_number_of_parameters(z) ; print()
return {
'feature': feature_var,
'label': label_var,
'ce' : ce,
'pe' : pe,
'output': z
}