def test_saving_sequential_model(self):
with self.cached_session():
model = keras.models.Sequential()
model.add(keras.layers.Dense(2, input_shape=(3,)))
model.add(keras.layers.RepeatVector(3))
model.add(keras.layers.TimeDistributed(keras.layers.Dense(3)))
model.compile(
loss=keras.losses.MSE,
optimizer=rmsprop.RMSprop(lr=0.0001),
metrics=[keras.metrics.categorical_accuracy],
sample_weight_mode='temporal',
run_eagerly=testing_utils.should_run_eagerly(),
run_distributed=testing_utils.should_run_distributed())
x = np.random.random((1, 3))
y = np.random.random((1, 3, 3))
model.train_on_batch(x, y)
ref_y = model.predict(x)
saved_model_dir = self._save_model_dir()
keras_saved_model.export_saved_model(model, saved_model_dir)
loaded_model = keras_saved_model.load_from_saved_model(saved_model_dir)
y = loaded_model.predict(x)
self.assertAllClose(ref_y, y, atol=1e-05)
def test_fit_generator_method(self):
model = testing_utils.get_small_mlp(num_hidden=3,
num_classes=4,
input_dim=2)
model.compile(loss='mse',
optimizer=rmsprop.RMSprop(1e-3),
metrics=['mae',
metrics_module.CategoricalAccuracy()])
model.fit_generator(custom_generator(),
steps_per_epoch=5,
epochs=1,
verbose=1,
max_queue_size=10,
workers=4,
use_multiprocessing=True)
model.fit_generator(custom_generator(),
steps_per_epoch=5,
epochs=1,
verbose=1,
max_queue_size=10,
use_multiprocessing=False)
model.fit_generator(custom_generator(),
steps_per_epoch=5,
epochs=1,
verbose=1,
max_queue_size=10,
use_multiprocessing=False,
validation_data=custom_generator(),
validation_steps=10)
model.fit_generator(custom_generator(),
steps_per_epoch=5,
validation_data=custom_generator(),
validation_steps=1,
workers=0)
def testMinimizeSparseResourceVariableCentered(self):
# TODO(tanzheny, omalleyt): Fix test in eager mode.
with ops.Graph().as_default():
for dtype in _DATA_TYPES:
if test_util.is_xla_enabled() and dtype.is_complex:
self.skipTest("b/143578550")
var0 = resource_variable_ops.ResourceVariable([[1.0, 2.0]], dtype=dtype)
x = constant_op.constant([[4.0], [5.0]], dtype=dtype)
def loss():
pred = math_ops.matmul(embedding_ops.embedding_lookup([var0], [0]), x) # pylint: disable=cell-var-from-loop
return pred * pred
# loss = lambda: pred * pred # pylint: disable=cell-var-from-loop
sgd_op = rmsprop.RMSprop(
learning_rate=1.0, rho=0.0, momentum=0.0, epsilon=1.0,
centered=True).minimize(
loss, var_list=[var0])
self.evaluate(variables.global_variables_initializer())
# Fetch params to validate initial values
self.assertAllCloseAccordingToType([[1.0, 2.0]], self.evaluate(var0))
# Run 1 step of sgd
self.evaluate(sgd_op)
# Validate updated params
self.assertAllCloseAccordingToType([[-111, -138]],
self.evaluate(var0),
atol=0.01)
def test_model_methods_with_eager_tensors_single_io(self):
if not context.executing_eagerly():
# Only test V2 Function and V2 Eager modes, as V1 Graph mode with
# symbolic tensors has different requirements.
return
model = testing_utils.get_small_mlp(10, 4, 3)
optimizer = rmsprop.RMSprop(learning_rate=0.001)
loss = 'mse'
metrics = ['mae', metrics_module.CategoricalAccuracy()]
model.compile(
optimizer,
loss,
metrics=metrics,
run_eagerly=testing_utils.should_run_eagerly(),
experimental_run_tf_function=testing_utils.should_run_tf_function())
inputs = array_ops.zeros(shape=(10, 3))
targets = array_ops.zeros(shape=(10, 4))
model.fit(inputs, targets, epochs=1, batch_size=2, verbose=0)
model.fit(inputs, targets, epochs=1, batch_size=3, verbose=0, shuffle=False)
model.fit(inputs, targets, epochs=1, batch_size=4, verbose=0,
validation_data=(inputs, targets))
model.evaluate(inputs, targets, batch_size=2, verbose=0)
model.predict(inputs, batch_size=2)
model.train_on_batch(inputs, targets)
model.test_on_batch(inputs, targets)
def test_model_fit_and_validation_with_missing_arg_errors(self):
model = testing_utils.get_small_mlp(10, 4, 3)
model.compile(optimizer=rmsprop.RMSprop(learning_rate=0.001),
loss='mse',
run_eagerly=True)
x = array_ops.zeros(shape=(10, 3))
y = array_ops.zeros(shape=(10, 4))
dataset = dataset_ops.Dataset.from_tensor_slices(
(x, y)).repeat(10).batch(5)
validation_dataset = dataset_ops.Dataset.from_tensor_slices(
(x, y)).repeat().batch(5) # Infinite dataset.
model.fit(dataset, epochs=1, verbose=0)
# Step argument is required for infinite datasets.
with self.assertRaises(ValueError):
model.fit(dataset,
steps_per_epoch=2,
epochs=1,
verbose=0,
validation_data=validation_dataset)
with self.assertRaises(ValueError):
model.fit(dataset,
steps_per_epoch=2,
epochs=1,
verbose=0,
validation_data=validation_dataset)
def test_batchnorm_non_trainable_with_tf_function(self):
inputs = keras.Input((3,))
bn = normalization_v2.BatchNormalization()
outputs = bn(inputs)
model = keras.Model(inputs, outputs)
loss_fn = keras.losses.MeanSquaredError()
optimizer = rmsprop_v2.RMSprop()
@def_function.function()
def train_step(x, y):
with backprop.GradientTape() as tape:
y_pred = model(x, training=True)
loss = loss_fn(y, y_pred)
grads = tape.gradient(loss, model.trainable_weights)
optimizer.apply_gradients(zip(grads, model.trainable_weights))
return loss
@def_function.function()
def test_step(x, y):
y_pred = model(x, training=False)
loss = loss_fn(y, y_pred)
return loss
train_step(np.random.random((100, 3)), np.random.random((100, 3)))
test_data = np.random.random((10, 3))
test_targets = np.random.random((10, 3))
test_loss = test_step(test_data, test_targets)
bn.trainable = False
train_loss = train_step(test_data, test_targets)
if context.executing_eagerly():
self.assertAlmostEqual(test_loss.numpy(), train_loss.numpy())
def test_saving_functional_model(self):
with self.cached_session():
inputs = keras.layers.Input(shape=(3,))
x = keras.layers.Dense(2)(inputs)
output = keras.layers.Dense(3)(x)
model = keras.models.Model(inputs, output)
model.compile(
loss=keras.losses.MSE,
optimizer=rmsprop.RMSprop(lr=0.0001),
metrics=[keras.metrics.categorical_accuracy],
run_eagerly=testing_utils.should_run_eagerly(),
run_distributed=testing_utils.should_run_distributed())
x = np.random.random((1, 3))
y = np.random.random((1, 3))
model.train_on_batch(x, y)
ref_y = model.predict(x)
saved_model_dir = self._save_model_dir()
keras_saved_model.export_saved_model(model, saved_model_dir)
loaded_model = keras_saved_model.load_from_saved_model(saved_model_dir)
y = loaded_model.predict(x)
self.assertAllClose(ref_y, y, atol=1e-05)
def test_sequence_input_to_fit_eval_predict(self):
val_data = np.ones([10, 10], np.float32), np.ones([10, 1], np.float32)
class CustomSequence(keras.utils.Sequence):
def __getitem__(self, idx):
return np.ones([10, 10], np.float32), np.ones([10, 1],
np.float32)
def __len__(self):
return 2
model = testing_utils.get_small_mlp(num_hidden=10,
num_classes=1,
input_dim=10)
model.compile(rmsprop.RMSprop(0.001), 'binary_crossentropy')
model.fit(CustomSequence(), validation_data=val_data, epochs=2)
model.evaluate(CustomSequence())
model.predict(CustomSequence())
with self.assertRaisesRegexp(ValueError,
'`y` argument is not supported'):
model.fit(CustomSequence(), y=np.ones([10, 1]))
with self.assertRaisesRegexp(
ValueError, '`sample_weight` argument is not supported'):
model.fit(CustomSequence(), sample_weight=np.ones([10, 1]))
def test_dynamic_layer_error(self):
with self.assertRaisesRegexp(TypeError,
'attempting to use Python control flow'):
model = testing_utils.get_model_from_layers([DynamicLayer()],
input_shape=(3,))
model.compile(rmsprop.RMSprop(0.001), loss='mse')
model.train_on_batch(np.random.random((2, 3)), np.random.random((2, 3)))
def test_generator_methods_with_sample_weights(self):
model = testing_utils.get_small_mlp(num_hidden=3,
num_classes=4,
input_dim=2)
model.compile(loss='mse',
optimizer=rmsprop.RMSprop(1e-3),
metrics=['mae',
metrics_module.CategoricalAccuracy()],
run_eagerly=testing_utils.should_run_eagerly(),
run_distributed=testing_utils.should_run_distributed())
model.fit_generator(custom_generator(mode=3),
steps_per_epoch=5,
epochs=1,
verbose=1,
max_queue_size=10,
use_multiprocessing=False)
model.fit_generator(custom_generator(mode=3),
steps_per_epoch=5,
epochs=1,
verbose=1,
max_queue_size=10,
use_multiprocessing=False,
validation_data=custom_generator(mode=3),
validation_steps=10)
model.predict_generator(custom_generator(mode=3),
steps=5,
max_queue_size=10,
use_multiprocessing=False)
model.evaluate_generator(custom_generator(mode=3),
steps=5,
max_queue_size=10,
use_multiprocessing=False)
def test_training_with_sequences(self):
class DummySequence(keras.utils.Sequence):
def __getitem__(self, idx):
return np.zeros([10, 2]), np.ones([10, 4])
def __len__(self):
return 10
model = testing_utils.get_small_mlp(num_hidden=3,
num_classes=4,
input_dim=2)
model.compile(loss='mse', optimizer=rmsprop.RMSprop(1e-3))
model.fit_generator(DummySequence(),
steps_per_epoch=10,
validation_data=custom_generator(),
validation_steps=1,
max_queue_size=10,
workers=0,
use_multiprocessing=True)
model.fit_generator(DummySequence(),
steps_per_epoch=10,
validation_data=custom_generator(),
validation_steps=1,
max_queue_size=10,
workers=0,
use_multiprocessing=False)
def test_train_sequential_with_distribution_strategy(
self, distribution, cloning):
keras_model = simple_sequential_model()
keras_model.compile(
loss='categorical_crossentropy',
metrics=[keras.metrics.CategoricalAccuracy()],
optimizer=rmsprop_keras.RMSprop(learning_rate=0.01),
cloning=cloning)
config = run_config_lib.RunConfig(tf_random_seed=_RANDOM_SEED,
model_dir=self._base_dir,
train_distribute=distribution)
with self.cached_session():
est_keras = keras_lib.model_to_estimator(keras_model=keras_model,
config=config)
before_eval_results = est_keras.evaluate(
input_fn=get_ds_test_input_fn, steps=1)
est_keras.train(input_fn=get_ds_train_input_fn,
steps=_TRAIN_SIZE / 16)
after_eval_results = est_keras.evaluate(
input_fn=get_ds_test_input_fn, steps=1)
self.assertLess(after_eval_results['loss'],
before_eval_results['loss'])
tf.compat.v1.summary.FileWriterCache.clear()
tf.compat.v1.gfile.DeleteRecursively(self._config.model_dir)
def test_evaluate_generator_method(self):
model = testing_utils.get_small_mlp(num_hidden=3,
num_classes=4,
input_dim=2)
model.compile(loss='mse',
optimizer=rmsprop.RMSprop(1e-3),
metrics=['mae',
metrics_module.CategoricalAccuracy()],
run_eagerly=testing_utils.should_run_eagerly(),
run_distributed=testing_utils.should_run_distributed())
self._sleep_at_end = True
model.evaluate_generator(custom_generator(),
steps=5,
max_queue_size=10,
workers=2,
verbose=1,
use_multiprocessing=True)
model.evaluate_generator(custom_generator(),
steps=5,
max_queue_size=10,
use_multiprocessing=False)
model.evaluate_generator(custom_generator(),
steps=5,
max_queue_size=10,
use_multiprocessing=False,
workers=0)
def testMinimizeSparseResourceVariable(self):
# TODO(tanzheny, omalleyt): Fix test in eager mode.
with ops.Graph().as_default():
for dtype in _DATA_TYPES:
var0 = variables.Variable([[1.0, 2.0]], dtype=dtype)
x = constant_op.constant([[4.0], [5.0]], dtype=dtype)
def loss():
pred = math_ops.matmul(
embedding_ops.embedding_lookup([var0], [0]), x) # pylint: disable=cell-var-from-loop
return pred * pred
sgd_op = rmsprop.RMSprop(learning_rate=1.0,
rho=0.0,
momentum=0.0,
epsilon=0.0,
centered=False).minimize(
loss, var_list=[var0])
self.evaluate(variables.global_variables_initializer())
# Fetch params to validate initial values
self.assertAllCloseAccordingToType([[1.0, 2.0]],
self.evaluate(var0))
# Run 1 step of sgd
self.evaluate(sgd_op)
# Validate updated params
self.assertAllCloseAccordingToType([[0., 1.]],
self.evaluate(var0),
atol=0.01)
def test_loss_correctness_clipvalue_zero(self):
# Test that training loss is the same in eager and graph
# (by comparing it to a reference value in a deterministic case)
# And confirm that setting clipvalue to zero stops all training
layers = [
keras.layers.Dense(3, activation='relu',
kernel_initializer='ones'),
keras.layers.Dense(2,
activation='softmax',
kernel_initializer='ones')
]
model = testing_utils.get_model_from_layers(layers, input_shape=(4, ))
model.compile(loss='sparse_categorical_crossentropy',
optimizer=rmsprop.RMSprop(learning_rate=0.001,
clipvalue=0.0),
run_eagerly=testing_utils.should_run_eagerly(),
experimental_run_tf_function=testing_utils.
should_run_tf_function())
x = np.ones((100, 4))
np.random.seed(123)
y = np.random.randint(0, 1, size=(100, 1))
history = model.fit(x, y, epochs=3, batch_size=10)
self.assertAlmostEqual(history.history['loss'][-3], 0.6931, 4)
self.assertAlmostEqual(history.history['loss'][-2], 0.6931, 4)
self.assertAlmostEqual(history.history['loss'][-1], 0.6931, 4)
def test_generator_methods(self):
model = testing_utils.get_small_mlp(10, 4, 3)
optimizer = rmsprop.RMSprop(learning_rate=0.001)
model.compile(optimizer,
loss='mse',
metrics=['mae',
metrics_module.CategoricalAccuracy()],
run_eagerly=True)
x = np.random.random((10, 3))
y = np.random.random((10, 4))
def numpy_iterator():
while True:
yield x, y
model.fit_generator(numpy_iterator(), steps_per_epoch=3, epochs=1)
model.evaluate_generator(numpy_iterator(), steps=3)
def inference_numpy_iterator():
while True:
yield x
out = model.predict_generator(inference_numpy_iterator(), steps=3)
self.assertEqual(out.shape, (30, 4))
def test_dynamic_layer(self):
model = testing_utils.get_model_from_layers([DynamicLayer(dynamic=True)],
input_shape=(3,))
self.assertEqual(model.dynamic, True)
model.compile(rmsprop.RMSprop(0.001), loss='mse')
self.assertEqual(model.run_eagerly, True)
model.train_on_batch(np.random.random((2, 3)), np.random.random((2, 3)))
def testMinimizeSparseResourceVariableCentered(self):
for dtype in [dtypes.float32, dtypes.float64]:
with self.cached_session():
var0 = resource_variable_ops.ResourceVariable([[1.0, 2.0]],
dtype=dtype)
x = constant_op.constant([[4.0], [5.0]], dtype=dtype)
def loss():
pred = math_ops.matmul(
embedding_ops.embedding_lookup([var0], [0]), x) # pylint: disable=cell-var-from-loop
return pred * pred
# loss = lambda: pred * pred # pylint: disable=cell-var-from-loop
sgd_op = rmsprop.RMSprop(learning_rate=1.0,
rho=0.0,
momentum=0.0,
epsilon=1.0,
centered=True).minimize(
loss, var_list=[var0])
self.evaluate(variables.global_variables_initializer())
# Fetch params to validate initial values
self.assertAllCloseAccordingToType([[1.0, 2.0]],
self.evaluate(var0))
# Run 1 step of sgd
self.evaluate(sgd_op)
# Validate updated params
self.assertAllCloseAccordingToType([[-111, -138]],
self.evaluate(var0),
atol=0.01)
def test_invalid_forward_pass_in_eager_mode(self):
inputs = keras.Input((3, ))
outputs = InvalidLayer()(inputs)
model = keras.Model(inputs, outputs)
self.assertEqual(model._static_graph_friendly, False)
if testing_utils.should_run_eagerly():
model.compile(rmsprop.RMSprop(0.001), loss='mse', run_eagerly=True)
with self.assertRaisesRegexp(ValueError,
'You did something wrong!'):
model.train_on_batch(np.random.random((2, 3)),
np.random.random((2, 3)))
else:
with self.assertRaisesRegexp(
ValueError, 'only be successfully run in eager execution'):
model.compile(rmsprop.RMSprop(0.001),
loss='mse',
run_eagerly=False)
def test_dynamic_layers_in_sequential_model(self):
# Without input_shape argument
model = keras.Sequential([DynamicLayer1(dynamic=True),
keras.layers.Dense(3),
DynamicLayer2(dynamic=True)])
self.assertEqual(model.dynamic, True)
model.compile(rmsprop.RMSprop(0.001), loss='mse')
self.assertEqual(model.run_eagerly, True)
model.train_on_batch(np.random.random((2, 3)), np.random.random((2, 3)))
# With input_shape argument
model = keras.Sequential([DynamicLayer1(dynamic=True, input_shape=(3,)),
DynamicLayer2(dynamic=True)])
self.assertEqual(model.dynamic, True)
model.compile(rmsprop.RMSprop(0.001), loss='mse')
self.assertEqual(model.run_eagerly, True)
model.train_on_batch(np.random.random((2, 3)), np.random.random((2, 3)))
def test_dynamic_layer_with_deferred_sequential_model(self):
model = keras.Sequential(
[DynamicLayer(dynamic=True),
keras.layers.Dense(3)])
self.assertEqual(model.dynamic, True)
model.compile(rmsprop.RMSprop(0.001), loss='mse')
self.assertEqual(model.run_eagerly, True)
model.train_on_batch(np.random.random((2, 3)), np.random.random((2, 3)))
def test_control_flow_in_deferred_sequential_model(self):
model = keras.Sequential(
[ControlFlowLayer1(),
keras.layers.Dense(3),
ControlFlowLayer2()])
model.compile(rmsprop.RMSprop(0.001), loss='mse')
model.train_on_batch(np.random.random((2, 3)), np.random.random(
(2, 3)))
def test_save_load_h5(self, distribution):
with self.cached_session():
dataset = keras_test_lib.get_dataset(distribution)
with distribution.scope():
model = keras_test_lib.get_model()
model.compile(rms_prop_keras.RMSprop(learning_rate=0.01), 'mse')
model.fit(dataset, epochs=1, steps_per_epoch=1)
weights_file = tempfile.mktemp('.h5')
model.save_weights(weights_file)
model_2 = keras_test_lib.get_model()
model_2.compile(rms_prop_keras.RMSprop(learning_rate=0.01), 'mse')
model_2.load_weights(weights_file)
model_2.predict(
keras_test_lib.get_predict_dataset(distribution), steps=2)
model_2.fit(dataset, epochs=1, steps_per_epoch=1)
def test_dynamic_layer_error_running_in_graph_mode(self):
with context.graph_mode():
model = testing_utils.get_model_from_layers(
[DynamicLayer(dynamic=True)], input_shape=(3, ))
self.assertEqual(model.dynamic, True)
# But then you cannot run the model since you're in a graph scope.
with self.assertRaisesRegexp(ValueError,
'You must enable eager execution'):
model.compile(rmsprop.RMSprop(0.001), loss='mse')
def nested_dynamic_layers_in_eager_mode(self):
inputs = keras.Input((3,))
outputs = DynamicLayer1()(inputs)
inner_model = keras.Model(inputs, outputs)
inputs = keras.Input((3,))
x = DynamicLayer2()(inputs)
outputs = inner_model(x)
model = keras.Model(inputs, outputs)
self.assertEqual(model._static_graph_friendly, False)
if testing_utils.should_run_eagerly():
model.compile(rmsprop.RMSprop(0.001), loss='mse', run_eagerly=True)
model.train_on_batch(np.random.random((2, 3)), np.random.random((2, 3)))
else:
with self.assertRaisesRegexp(
ValueError, 'only be successfully run in eager execution'):
model.compile(rmsprop.RMSprop(0.001), loss='mse', run_eagerly=False)
def testSparse(self):
for dtype in [dtypes.half, dtypes.float32, dtypes.float64]:
for centered in [False, True]:
with ops.Graph().as_default(), self.cached_session(
use_gpu=True
):
var0_np = np.array(
[1.0, 1.0, 2.0], dtype=dtype.as_numpy_dtype
)
grads0_np = np.array(
[0.1, 0.0, 0.1], dtype=dtype.as_numpy_dtype
)
var1_np = np.array(
[3.0, 3.0, 4.0], dtype=dtype.as_numpy_dtype
)
grads1_np = np.array(
[0.01, 0.0, 0.01], dtype=dtype.as_numpy_dtype
)
var0 = variables.Variable(var0_np)
var1 = variables.Variable(var1_np)
var0_ref = variables.Variable(var0_np)
var1_ref = variables.Variable(var1_np)
grads0_np_indices = np.array([0, 2], dtype=np.int32)
grads0 = ops.IndexedSlices(
constant_op.constant(grads0_np[grads0_np_indices]),
constant_op.constant(grads0_np_indices),
constant_op.constant([3]),
)
grads1_np_indices = np.array([0, 2], dtype=np.int32)
grads1 = ops.IndexedSlices(
constant_op.constant(grads1_np[grads1_np_indices]),
constant_op.constant(grads1_np_indices),
constant_op.constant([3]),
)
opt = ConstrainedRMSprop(centered=centered)
update = opt.apply_gradients(
zip([grads0, grads1], [var0, var1])
)
opt_ref = rmsprop.RMSprop(centered=centered)
update_ref = opt_ref.apply_gradients(
zip([grads0, grads1], [var0_ref, var1_ref])
)
self.evaluate(variables.global_variables_initializer())
# Run 3 steps
for t in range(3):
update.run()
update_ref.run()
# Validate updated params
self.assertAllCloseAccordingToType(
self.evaluate(var0_ref), self.evaluate(var0)
)
self.assertAllCloseAccordingToType(
self.evaluate(var1_ref), self.evaluate(var1)
)
def test_training_arg_in_defun(self):
layer = self._get_layer_with_training_arg()
model = testing_utils.get_model_from_layers([layer], input_shape=(1, ))
model.compile(rmsprop.RMSprop(0.), loss='mae')
history = model.fit(np.zeros((1, 1)), np.zeros((1, 1)))
self.assertEqual(history.history['loss'][0], 1.)
loss = model.evaluate(np.zeros((1, 1)), np.zeros((1, 1)))
self.assertEqual(loss, 0.)
# Test that the argument injection performed in `call` is not active
# when the argument is passed explicitly.
layer = self._get_layer_with_training_arg()
inputs = keras.Input(shape=(1, ))
# Pass `training` by name
outputs = layer(inputs, training=False)
model = keras.Model(inputs, outputs)
model.compile(rmsprop.RMSprop(0.), loss='mae')
history = model.fit(np.zeros((1, 1)), np.zeros((1, 1)))
self.assertEqual(history.history['loss'][0], 0.)
def test_dynamic_layer_error(self):
if testing_utils.get_model_type() == 'sequential':
# TODO(scottzhu): Reenable this once sequential is moved to frozen_keras.
self.skipTest(
'Sequential model will check layer instance type and fail.')
with self.assertRaisesRegexp(TypeError,
'attempting to use Python control flow'):
model = testing_utils.get_model_from_layers([DynamicLayer()],
input_shape=(3, ))
model.compile(rmsprop.RMSprop(0.001), loss='mse')
model.train_on_batch(np.random.random((2, 3)),
np.random.random((2, 3)))
def test_dynamic_layer(self):
if testing_utils.get_model_type() == 'sequential':
# TODO(scottzhu): Reenable this once sequential is moved to frozen_keras.
self.skipTest(
'Sequential model will check layer instance type and fail.')
model = testing_utils.get_model_from_layers(
[DynamicLayer(dynamic=True)], input_shape=(3, ))
self.assertEqual(model.dynamic, True)
model.compile(rmsprop.RMSprop(0.001), loss='mse')
self.assertEqual(model.run_eagerly, True)
model.train_on_batch(np.random.random((2, 3)), np.random.random(
(2, 3)))
def test_sequential_model_saving(self):
if h5py is None:
self.skipTest('h5py required to run this test')
with self.cached_session():
model = keras.models.Sequential()
model.add(keras.layers.Dense(2, input_shape=(3, )))
model.add(keras.layers.RepeatVector(3))
model.add(keras.layers.TimeDistributed(keras.layers.Dense(3)))
model.compile(loss=keras.losses.MSE,
optimizer=rmsprop.RMSprop(lr=0.0001),
metrics=[
keras.metrics.categorical_accuracy,
keras.metrics.CategoricalAccuracy()
],
weighted_metrics=[
keras.metrics.categorical_accuracy,
keras.metrics.CategoricalAccuracy()
],
sample_weight_mode='temporal')
x = np.random.random((1, 3))
y = np.random.random((1, 3, 3))
model.train_on_batch(x, y)
out = model.predict(x)
fd, fname = tempfile.mkstemp('.h5')
keras.models.save_model(model, fname)
new_model = keras.models.load_model(fname)
os.close(fd)
os.remove(fname)
out2 = new_model.predict(x)
self.assertAllClose(out, out2, atol=1e-05)
# test that new updates are the same with both models
x = np.random.random((1, 3))
y = np.random.random((1, 3, 3))
model.train_on_batch(x, y)
new_model.train_on_batch(x, y)
x = np.random.random((1, 3))
y = np.random.random((1, 3, 3))
eval_out = model.evaluate(x, y)
eval_out2 = new_model.evaluate(x, y)
self.assertArrayNear(eval_out, eval_out2, 0.001)
out = model.predict(x)
out2 = new_model.predict(x)
# TODO(b/120930751) This tolerance should be 1e-05,
# very concerning that its not.
self.assertAllClose(out, out2, atol=1e-03)
