def testFeedIndexedSlicesWithoutDenseShape(self):
with session.Session() as s:
values = np.array([1.0, 2.0]).astype(np.float32)
indices = np.array([[3, 2, 0], [4, 5, 1]]).astype(np.int64)
dense_shape = None
ind = ops.IndexedSlices(
array_ops.placeholder(dtype=np.float32,
shape=(2,)),
array_ops.placeholder(dtype=np.int64,
shape=(2, 3)),
None)
ind_values = array_ops.identity(ind.values)
ind_indices = array_ops.identity(ind.indices)
ind2 = ops.IndexedSlices(ind_values, ind_indices)
# Feed with tuple
values_out, indices_out = s.run(
[ind_values, ind_indices], {ind: (values, indices)})
self.assertAllEqual(values_out, values)
self.assertAllEqual(indices_out, indices)
# Feed with IndexedSlicesValue
values_out, indices_out = s.run(
[ind_values, ind_indices],
{ind: ops.IndexedSlicesValue(values, indices, dense_shape)})
self.assertAllEqual(values_out, values)
self.assertAllEqual(indices_out, indices)
# Feed with IndexedSlicesValue, fetch IndexedSlicesValue
ind2_out = s.run(ind2, {ind: ops.IndexedSlicesValue(values, indices,
dense_shape)})
self.assertAllEqual(ind2_out.values, values)
self.assertAllEqual(ind2_out.indices, indices)
self.assertAllEqual(ind2_out.dense_shape, dense_shape)
def test_raw_tf_compatibility(self):
# test calling layers/models on TF tensors
a = keras.layers.Input(shape=(32,), name='input_a')
b = keras.layers.Input(shape=(32,), name='input_b')
dense = keras.layers.Dense(16, name='dense_1')
a_2 = dense(a)
b_2 = dense(b)
merged = keras.layers.concatenate([a_2, b_2], name='merge')
c = keras.layers.Dense(64, name='dense_2')(merged)
d = keras.layers.Dense(5, name='dense_3')(c)
model = keras.models.Model(inputs=[a, b], outputs=[c, d], name='model')
j = keras.layers.Input(shape=(32,), name='input_j')
k = keras.layers.Input(shape=(32,), name='input_k')
m, n = model([j, k])
tf_model = keras.models.Model([j, k], [m, n])
j_tf = array_ops.placeholder(dtype=dtypes.float32, shape=(None, 32))
k_tf = array_ops.placeholder(dtype=dtypes.float32, shape=(None, 32))
m_tf, n_tf = tf_model([j_tf, k_tf])
self.assertListEqual(m_tf.get_shape().as_list(), [None, 64])
self.assertListEqual(n_tf.get_shape().as_list(), [None, 5])
# test merge
keras.layers.concatenate([j_tf, k_tf], axis=1)
keras.layers.add([j_tf, k_tf])
# test tensor input
x = array_ops.placeholder(shape=(None, 2), dtype=dtypes.float32)
keras.layers.InputLayer(input_tensor=x)
x = keras.layers.Input(tensor=x)
keras.layers.Dense(2)(x)
def _testReduction(self,
tf_reduce_fn,
np_reduce_fn,
dtype,
test_inputs,
rtol=1e-4,
atol=1e-4):
"""Tests that the output of 'tf_reduce_fn' matches numpy's output."""
for test_input in test_inputs:
with self.test_session() as sess:
with self.test_scope():
a = array_ops.placeholder(dtype)
index = array_ops.placeholder(dtypes.int32)
out = tf_reduce_fn(a, index)
result = sess.run(out, {a: test_input, index: [0]})
self.assertAllClose(
result, np_reduce_fn(test_input, axis=0), rtol=rtol, atol=atol)
result = sess.run(out, {a: test_input, index: [1]})
self.assertAllClose(
result, np_reduce_fn(test_input, axis=1), rtol=rtol, atol=atol)
result = sess.run(out, {a: test_input, index: [-1]})
self.assertAllClose(
result, np_reduce_fn(test_input, axis=1), rtol=rtol, atol=atol)
with self.assertRaisesWithPredicateMatch(
errors_impl.InvalidArgumentError, 'Invalid reduction dim'):
sess.run(out, {a: test_input, index: [-33]})
with self.assertRaisesWithPredicateMatch(
errors_impl.InvalidArgumentError, 'Invalid reduction dim'):
sess.run(out, {a: test_input, index: [2]})
def testPaddedBatchDatasetShapeSpecifications(self):
int_placeholder = array_ops.placeholder(dtypes.int32)
float_placeholder = array_ops.placeholder(dtypes.float32)
string_placeholder = array_ops.placeholder(dtypes.string)
input_dataset = dataset_ops.Dataset.from_tensors(
(int_placeholder, float_placeholder, string_placeholder))
# Test different ways of specifying the `padded_shapes` argument.
dynamic_padding_from_tensor_shapes = input_dataset.padded_batch(
32,
padded_shapes=(tensor_shape.TensorShape([None]),
tensor_shape.TensorShape([None, None]),
tensor_shape.TensorShape([37])))
dynamic_padding_from_lists = input_dataset.padded_batch(
32, padded_shapes=([None], [None, None], [37]))
dynamic_padding_from_lists_with_minus_one = input_dataset.padded_batch(
32, padded_shapes=([-1], [-1, -1], [37]))
dynamic_padding_from_tensors = input_dataset.padded_batch(
32,
padded_shapes=(constant_op.constant([-1], dtype=dtypes.int64),
constant_op.constant([-1, -1], dtype=dtypes.int64),
constant_op.constant([37], dtype=dtypes.int64)))
for dataset in [dynamic_padding_from_tensor_shapes,
dynamic_padding_from_lists,
dynamic_padding_from_lists_with_minus_one,
dynamic_padding_from_tensors]:
self.assertEqual([None, None], dataset.output_shapes[0].as_list())
self.assertEqual([None, None, None], dataset.output_shapes[1].as_list())
self.assertEqual([None, 37], dataset.output_shapes[2].as_list())
def testAutoPack(self):
with self.test_session():
h = array_ops.placeholder(dtypes_lib.int32, shape=[])
w = array_ops.placeholder(dtypes_lib.int32, shape=[])
z = array_ops.ones([h, w])
out = z.eval(feed_dict={h: 4, w: 16})
self.assertAllEqual(out, np.array([[1] * 16] * 4))
def testCustomGradient(self):
dtype = dtypes.float32
@function.Defun(dtype, dtype, dtype)
def XentLossGrad(logits, labels, dloss):
dlogits = array_ops.reshape(dloss, [-1, 1]) * (
nn_ops.softmax(logits) - labels)
dlabels = array_ops.zeros_like(labels)
# Takes exp(dlogits) to differentiate it from the "correct" gradient.
return math_ops.exp(dlogits), dlabels
@function.Defun(dtype, dtype, grad_func=XentLossGrad)
def XentLoss(logits, labels):
return math_ops.reduce_sum(labels * math_ops.log(nn_ops.softmax(logits)),
1)
g = ops.Graph()
with g.as_default():
logits = array_ops.placeholder(dtype)
labels = array_ops.placeholder(dtype)
loss = XentLoss(logits, labels)
dlogits = gradients_impl.gradients([loss], [logits])
x = np.random.uniform(-10., 10., size=(4, 9)).astype(np.float32)
prob = np.exp(x) / np.sum(np.exp(x), 1, keepdims=1)
y = np.random.uniform(-10., 10., size=(4, 9)).astype(np.float32)
for cfg in _OptimizerOptions():
tf_logging.info("cfg = %s", cfg)
with session.Session(graph=g, config=cfg) as sess:
out, = sess.run(dlogits, {logits: x, labels: y})
self.assertAllClose(out, np.exp(prob - y))
def _testReduceSum(self,
expected_result,
dtype,
test_inputs,
rtol=1e-3,
atol=1e-4):
"""Tests reduce sum on a list of input arrays.
For each array in test_inputs, check that performing reduce sum on the array
produces a value that is close to the expected result.
Args:
expected_result: the expected result.
dtype: the data type of the reduce sum operation.
test_inputs: a list of input arrays for the reduce sum operation.
rtol: the relative error.
atol: the absolute error.
"""
for test_input in test_inputs:
with self.test_session() as sess:
with self.test_scope():
a = array_ops.placeholder(dtype)
index = array_ops.placeholder(dtypes.int32)
out = math_ops.reduce_sum(a, index)
result = sess.run(out, {
a: np.array(test_input, dtype=dtype),
index: [0]
})
# Compare the results using float32 type.
self.assertAllClose(
np.float32(result),
np.float32(expected_result),
rtol=rtol,
atol=atol)
def _verifySolve(self, x, y, batch_dims=None):
for np_type in [np.float32, np.float64, np.complex64, np.complex128]:
if np_type == np.float32 or np_type == np.complex64:
tol = 1e-5
else:
tol = 1e-12
for adjoint in False, True:
if np_type is [np.float32, np.float64]:
a = x.real().astype(np_type)
b = y.real().astype(np_type)
else:
a = x.astype(np_type)
b = y.astype(np_type)
a_np = np.conj(np.transpose(a)) if adjoint else a
if batch_dims is not None:
a = np.tile(a, batch_dims + [1, 1])
a_np = np.tile(a_np, batch_dims + [1, 1])
b = np.tile(b, batch_dims + [1, 1])
np_ans = np.linalg.solve(a_np, b)
for use_placeholder in False, True:
with self.test_session(use_gpu=True) as sess:
if use_placeholder:
a_ph = array_ops.placeholder(dtypes.as_dtype(np_type))
b_ph = array_ops.placeholder(dtypes.as_dtype(np_type))
tf_ans = linalg_ops.matrix_solve(a_ph, b_ph, adjoint=adjoint)
out = sess.run(tf_ans, {a_ph: a, b_ph: b})
else:
tf_ans = linalg_ops.matrix_solve(a, b, adjoint=adjoint)
out = tf_ans.eval()
self.assertEqual(tf_ans.get_shape(), out.shape)
self.assertEqual(np_ans.shape, out.shape)
self.assertAllClose(np_ans, out, atol=tol, rtol=tol)
def testCondNested(self):
with context.graph_mode(), self.test_session():
v = resource_variable_ops.ResourceVariable(1.0)
variables.global_variables_initializer().run()
p = array_ops.placeholder(dtype=dtypes.bool)
q = array_ops.placeholder(dtype=dtypes.bool)
with function.AutomaticControlDependencies() as c:
def true_fn():
v.assign(v + 1, name='true')
return 1.0
def false_fn():
def inner_true_fn():
v.assign(v * 2, name='false_true')
return 2.0
def inner_false_fn():
v.assign(v * 3, name='false_false')
return 3.0
control_flow_ops.cond(q, inner_true_fn, inner_false_fn)
return 1.0
control_flow_ops.cond(p, true_fn, false_fn)
with ops.name_scope('final'):
val = v.read_value()
val = c.mark_as_return(val)
self.assertAllEqual(val.eval(feed_dict={p: False, q: False}), 3.0)
self.assertAllEqual(val.eval(feed_dict={p: False, q: True}), 6.0)
self.assertAllEqual(val.eval(feed_dict={p: True, q: True}), 7.0)
self.assertAllEqual(val.eval(feed_dict={p: True, q: False}), 8.0)
def testCDFWithDynamicEventShapeKnownNdims(self):
"""Test that dynamically-sized events with unknown shape work."""
batch_size = 2
histograms = array_ops.placeholder(dtype=dtypes.float32,
shape=(batch_size, None))
event = array_ops.placeholder(dtype=dtypes.float32, shape=(batch_size,))
dist = categorical.Categorical(probs=histograms)
cdf_op = dist.cdf(event)
# Feed values into the placeholder with different shapes
# three classes.
event_feed_one = [0, 1]
histograms_feed_one = [[0.5, 0.3, 0.2], [1.0, 0.0, 0.0]]
expected_cdf_one = [0.0, 1.0]
feed_dict_one = {
histograms: histograms_feed_one,
event: event_feed_one
}
# six classes.
event_feed_two = [2, 5]
histograms_feed_two = [[0.9, 0.0, 0.0, 0.0, 0.0, 0.1],
[0.15, 0.2, 0.05, 0.35, 0.13, 0.12]]
expected_cdf_two = [0.9, 0.88]
feed_dict_two = {
histograms: histograms_feed_two,
event: event_feed_two
}
with self.cached_session() as sess:
actual_cdf_one = sess.run(cdf_op, feed_dict=feed_dict_one)
actual_cdf_two = sess.run(cdf_op, feed_dict=feed_dict_two)
self.assertAllClose(actual_cdf_one, expected_cdf_one)
self.assertAllClose(actual_cdf_two, expected_cdf_two)
def testShapeFunctionEdgeCases(self):
# split_dim greater than rank of input.
with self.assertRaises(ValueError):
array_ops.split(value=[[0, 1], [2, 3]], num_or_size_splits=4, axis=2)
# split dim less than -(rank of input)
with self.assertRaises(ValueError):
array_ops.split(value=[[0, 1], [2, 3]], num_or_size_splits=4, axis=-3)
# num_split does not evenly divide the size in split_dim.
with self.assertRaisesRegexp(ValueError, "should evenly divide"):
array_ops.split(value=[0, 1, 2, 3], num_or_size_splits=3, axis=0)
# Unknown split_dim.
splits = array_ops.split(
value=[[0, 1, 2, 3]],
num_or_size_splits=4,
axis=array_ops.placeholder(dtypes.int32))
for s in splits:
self.assertEqual([None, None], s.get_shape().as_list())
# Unknown split_dim and input shape.
splits = array_ops.split(
value=array_ops.placeholder(dtypes.float32),
num_or_size_splits=4,
axis=array_ops.placeholder(dtypes.int32))
for s in splits:
self.assertEqual(None, s.get_shape().ndims)
def _testStreamingQuantileBucketsHelper(
self, inputs, num_quantiles=3, expected_buckets=None):
"""Helper to test quantile buckets on different inputs."""
# set generate_quantiles to True since the test will generate fewer
# boundaries otherwise.
with self.test_session() as sess:
accumulator = quantile_ops.QuantileAccumulator(
init_stamp_token=0, num_quantiles=num_quantiles,
epsilon=0.001, name="q1", generate_quantiles=True)
resources.initialize_resources(resources.shared_resources()).run()
input_column = array_ops.placeholder(dtypes.float32)
weights = array_ops.placeholder(dtypes.float32)
update = accumulator.add_summary(
stamp_token=0,
column=input_column,
example_weights=weights)
with self.test_session() as sess:
sess.run(update,
{input_column: inputs,
weights: [1] * len(inputs)})
with self.test_session() as sess:
sess.run(accumulator.flush(stamp_token=0, next_stamp_token=1))
are_ready_flush, buckets = (accumulator.get_buckets(stamp_token=1))
buckets, are_ready_flush = (sess.run(
[buckets, are_ready_flush]))
self.assertEqual(True, are_ready_flush)
# By default, use 3 quantiles, 4 boundaries for simplicity.
self.assertEqual(num_quantiles + 1, len(buckets))
if expected_buckets:
self.assertAllEqual(buckets, expected_buckets)
def testStreamingQuantileBuckets(self):
"""Sets up the quantile summary op test as follows.
100 batches of data is added to the accumulator. The batches are in form:
[0 1 .. 99]
[100 101 .. 200]
...
[9900 9901 .. 9999]
All the batches have 1 for all the example weights.
"""
with self.test_session() as sess:
accumulator = quantile_ops.QuantileAccumulator(
init_stamp_token=0, num_quantiles=3, epsilon=0.01, name="q1")
resources.initialize_resources(resources.shared_resources()).run()
weight_placeholder = array_ops.placeholder(dtypes.float32)
dense_placeholder = array_ops.placeholder(dtypes.float32)
update = accumulator.add_summary(
stamp_token=0,
column=dense_placeholder,
example_weights=weight_placeholder)
with self.test_session() as sess:
for i in range(100):
dense_float = np.linspace(
i * 100, (i + 1) * 100 - 1, num=100).reshape(-1, 1)
sess.run(update, {
dense_placeholder: dense_float,
weight_placeholder: np.ones(shape=(100, 1), dtype=np.float32)
})
with self.test_session() as sess:
sess.run(accumulator.flush(stamp_token=0, next_stamp_token=1))
are_ready_flush, buckets = (accumulator.get_buckets(stamp_token=1))
buckets, are_ready_flush = (sess.run([buckets, are_ready_flush]))
self.assertEqual(True, are_ready_flush)
self.assertAllEqual([0, 3335., 6671., 9999.], buckets)
def testSkipEagerUnbatchDynamicShapeMismatch(self):
ph1 = array_ops.placeholder(dtypes.int32, shape=[None])
ph2 = array_ops.placeholder(dtypes.int32, shape=None)
data = dataset_ops.Dataset.from_tensors((ph1, ph2))
data = data.apply(batching.unbatch())
iterator = dataset_ops.make_initializable_iterator(data)
next_element = iterator.get_next()
with self.cached_session() as sess:
# Mismatch in the 0th dimension.
sess.run(
iterator.initializer,
feed_dict={
ph1: np.arange(7).astype(np.int32),
ph2: np.arange(8).astype(np.int32)
})
with self.assertRaises(errors.InvalidArgumentError):
self.evaluate(next_element)
# No 0th dimension (i.e. scalar value) for one component.
sess.run(
iterator.initializer,
feed_dict={
ph1: np.arange(7).astype(np.int32),
ph2: 7
})
with self.assertRaises(errors.InvalidArgumentError):
self.evaluate(next_element)
def testSlideDatasetInvalid(self, count, window_size, window_shift,
window_stride):
count_t = array_ops.placeholder(dtypes.int64, shape=[])
window_size_t = array_ops.placeholder(dtypes.int64, shape=[])
window_shift_t = array_ops.placeholder(dtypes.int64, shape=[])
window_stride_t = array_ops.placeholder(dtypes.int64, shape=[])
iterator = (
dataset_ops.Dataset.range(10).map(lambda x: x).repeat(count_t).apply(
sliding.sliding_window_batch(
window_size=window_size_t,
window_shift=window_shift_t,
window_stride=window_stride_t)).make_initializable_iterator())
init_op = iterator.initializer
with self.cached_session() as sess:
with self.assertRaises(errors.InvalidArgumentError):
sess.run(
init_op,
feed_dict={
count_t: count,
window_size_t: window_size,
window_shift_t: window_shift,
window_stride_t: window_stride
})
def _VerifyValues(self,
input_sizes=None,
filter_sizes=None,
strides=None,
dilations=None,
padding=None,
data_format_src="NHWC",
data_format_dst="NHWC",
expected=None):
"""Tests that tf.nn.conv2d produces the expected value.
Args:
input_sizes: Input tensor dimensions in
[batch, input_rows, input_cols, input_depth].
filter_sizes: Filter tensor dimensions in
[kernel_rows, kernel_cols, input_depth, output_depth].
strides: Strides.
dilations: RHS dilations.
padding: Padding type.
data_format_src: Data format input is in.
data_format_dst: Data format verification will run and input is converted
to.
expected: Expected output.
"""
total_size_1 = np.prod(input_sizes)
total_size_2 = np.prod(filter_sizes)
x1 = np.arange(1, total_size_1 + 1, dtype=np.float32).reshape(input_sizes)
x2 = np.arange(1, total_size_2 + 1, dtype=np.float32).reshape(filter_sizes)
strides = [1] + strides + [1]
if dilations is None:
dilations = [1, 1]
dilations = [1] + dilations + [1]
# Convert between data formats.
expected = test_utils.ConvertBetweenDataFormats(expected, data_format_src,
data_format_dst)
x1 = test_utils.ConvertBetweenDataFormats(x1, data_format_src,
data_format_dst)
input_sizes = test_utils.PermuteDimsBetweenDataFormats(
input_sizes, data_format_src, data_format_dst)
strides = test_utils.PermuteDimsBetweenDataFormats(strides, data_format_src,
data_format_dst)
dilations = test_utils.PermuteDimsBetweenDataFormats(
dilations, data_format_src, data_format_dst)
with self.test_session() as sess:
t1 = array_ops.placeholder(dtypes.float32, shape=input_sizes)
t2 = array_ops.placeholder(dtypes.float32, shape=filter_sizes)
with self.test_scope():
out = nn_ops.conv2d(
t1,
t2,
strides=strides,
padding=padding,
data_format=data_format_dst,
dilations=dilations)
value = sess.run(out, {t1: x1, t2: x2})
self.assertAllClose(expected, value, 1e-3)
def testCond(self):
"""Tests that compilation handles switch operators."""
with self.session(config=NoRewriteSessionConfig()) as session:
x = array_ops.placeholder(dtypes.float32)
y = array_ops.placeholder(dtypes.float32)
c = array_ops.placeholder(dtypes.bool)
with jit_scope():
z = x + 1.0
w = control_flow_ops.cond(c, lambda: z, lambda: y)
t = math_ops.add(z, w)
# If JIT compilation chooses to cluster z and t, then execution will
# deadlock.
run_metadata = config_pb2.RunMetadata()
result = test_utils.RunWithWarmup(
session,
t, {
x: np.float32(2),
y: np.float32(4),
c: True
},
run_metadata=run_metadata,
options=config_pb2.RunOptions(
trace_level=config_pb2.RunOptions.FULL_TRACE))
self.assert_(MetadataHasXlaRunOp(run_metadata))
self.assertAllClose(result, np.float32(6), rtol=1e-1)
def testReshape(self):
"""Tests an operator with compile-time constant and non-constant inputs."""
with self.session(config=NoRewriteSessionConfig()) as sess:
x = array_ops.placeholder(dtypes.float32)
y = array_ops.placeholder(dtypes.int32)
with jit_scope():
# Reshape's first argument is non-constant in the JIT, but its second
# (shape) argument will be treated as a compile-time constant for
# each JIT compilation.
# We do not use a tf.const() argument since we want to ensure the
# shape is still a run-time argument to the JIT, and not
# statically known as part of the JIT compilation's input graph.
z = array_ops.reshape(x, y)
run_metadata = config_pb2.RunMetadata()
out = test_utils.RunWithWarmup(
sess,
z, {
x: np.array([1, 2, 3, 4, 5, 6], np.float32),
y: [-1, 3]
},
run_metadata=run_metadata,
options=config_pb2.RunOptions(
trace_level=config_pb2.RunOptions.FULL_TRACE))
self.assert_(MetadataHasXlaRunOp(run_metadata))
self.assertAllClose(np.array([[1, 2, 3], [4, 5, 6]], np.float32), out)
def testIgnoredArguments(self):
"""Tests that JIT computations can ignore formal parameters."""
with self.session(config=NoRewriteSessionConfig()) as sess:
x = array_ops.placeholder(dtypes.int32)
y = array_ops.placeholder(dtypes.int32)
with jit_scope():
z = math_ops.add(x, x)
w = math_ops.add(y, y)
# Pulls 'w' into the same compilation via control dependencies.
with ops.control_dependencies([w]):
n = control_flow_ops.no_op()
with ops.control_dependencies([n]):
t = math_ops.add(z, z)
run_metadata = config_pb2.RunMetadata()
out = test_utils.RunWithWarmup(
sess,
t, {
x: np.int32(7),
y: np.int32(404)
},
run_metadata=run_metadata,
options=config_pb2.RunOptions(
trace_level=config_pb2.RunOptions.FULL_TRACE))
self.assert_(MetadataHasXlaRunOp(run_metadata))
self.assertAllClose(28, out)
def _testConfMatrixOnTensors(self, tf_dtype, np_dtype):
with self.test_session() as sess:
m_neg = array_ops.placeholder(dtype=dtypes.float32)
m_pos = array_ops.placeholder(dtype=dtypes.float32)
s = array_ops.placeholder(dtype=dtypes.float32)
neg = random_ops.random_normal([20], mean=m_neg, stddev=s, dtype=dtypes.float32)
pos = random_ops.random_normal([20], mean=m_pos, stddev=s, dtype=dtypes.float32)
data = array_ops.concat([neg, pos], 0)
data = math_ops.cast(math_ops.round(data), tf_dtype)
data = math_ops.minimum(math_ops.maximum(data, 0), 1)
lab = array_ops.concat([array_ops.zeros([20], dtype=tf_dtype), array_ops.ones([20], dtype=tf_dtype)], 0)
cm = confusion_matrix.confusion_matrix(lab, data, dtype=tf_dtype, num_classes=2)
d, l, cm_out = sess.run([data, lab, cm], {m_neg: 0.0, m_pos: 1.0, s: 1.0})
truth = np.zeros([2, 2], dtype=np_dtype)
try:
range_builder = xrange
except NameError: # In Python 3.
range_builder = range
for i in range_builder(len(d)):
truth[l[i], d[i]] += 1
self.assertEqual(cm_out.dtype, np_dtype)
self.assertAllClose(cm_out, truth, atol=1e-10)
def testTensorArrayScatterReadAndGradients(self):
with self.cached_session() as session, self.test_scope():
id0 = array_ops.placeholder(dtypes.int32)
id1 = array_ops.placeholder(dtypes.int32)
def fn():
ta = tensor_array_ops.TensorArray(
dtype=dtypes.float32, tensor_array_name="foo", size=10)
indices = constant_op.constant([1, 8])
value = constant_op.constant([[1.0, -1.0], [10.0, -10.0]])
w = ta.scatter(indices, value)
r0 = w.read(id0)
r1 = w.read(id1)
# Test combined gradients + aggregation of read(0).
grad = gradients_impl.gradients(
ys=[r0, r1], xs=[value], grad_ys=[[2.0, 3.0], [4.0, 5.0]])
return [[r0, r1], grad]
read_vals, grad_vals = session.run(
xla.compile(fn), feed_dict={
id0: 1,
id1: 8
})
self.assertEqual(len(read_vals), 2)
self.assertEqual(len(grad_vals), 1)
self.assertAllEqual([1.0, -1.0], read_vals[0])
self.assertAllEqual([10.0, -10.0], read_vals[1])
self.assertAllEqual([[2.0, 3.0], [4.0, 5.0]], grad_vals[0])
def testFeedSparseTensor(self):
with session.Session() as s:
indices = np.array([[3, 2, 0], [4, 5, 1]]).astype(np.int64)
values = np.array([1.0, 2.0]).astype(np.float32)
shape = np.array([7, 9, 2]).astype(np.int64)
sp = ops.SparseTensor(
array_ops.placeholder(dtype=np.int64, shape=(2, 3)),
array_ops.placeholder(dtype=np.float32, shape=(2,)),
array_ops.placeholder(dtype=np.int64, shape=(3,)),)
sp_indices = array_ops.identity(sp.indices)
sp_values = array_ops.identity(sp.values)
sp_shape = array_ops.identity(sp.shape)
sp2 = ops.SparseTensor(sp_indices, sp_values, sp_shape)
# Feed with tuple
indices_out, values_out, shape_out = s.run(
[sp_indices, sp_values, sp_shape], {sp: (indices, values, shape)})
self.assertAllEqual(indices_out, indices)
self.assertAllEqual(values_out, values)
self.assertAllEqual(shape_out, shape)
# Feed with SparseTensorValue
indices_out, values_out, shape_out = s.run(
[sp_indices, sp_values, sp_shape],
{sp: ops.SparseTensorValue(indices, values, shape)})
self.assertAllEqual(indices_out, indices)
self.assertAllEqual(values_out, values)
self.assertAllEqual(shape_out, shape)
# Feed with SparseTensorValue, fetch SparseTensorValue
sp2_out = s.run(sp2, {sp: ops.SparseTensorValue(indices, values, shape)})
self.assertAllEqual(sp2_out.indices, indices)
self.assertAllEqual(sp2_out.values, values)
self.assertAllEqual(sp2_out.shape, shape)
def _testIdentityOperator(self, use_static_shape_):
for dtype in np.float32, np.float64:
a_np = np.array([[1., 2.], [3., 4.], [5., 6.]], dtype=dtype)
x_np = np.array([[2.], [-3.]], dtype=dtype)
y_np = np.array([[2], [-3.], [5.]], dtype=dtype)
with self.test_session() as sess:
if use_static_shape_:
a = constant_op.constant(a_np, dtype=dtype)
x = constant_op.constant(x_np, dtype=dtype)
y = constant_op.constant(y_np, dtype=dtype)
else:
a = array_ops.placeholder(dtype)
x = array_ops.placeholder(dtype)
y = array_ops.placeholder(dtype)
id_op = util.identity_operator(a)
ax = id_op.apply(x)
aty = id_op.apply_adjoint(y)
op_shape = ops.convert_to_tensor(id_op.shape)
if use_static_shape_:
op_shape_val, ax_val, aty_val = sess.run([op_shape, ax, aty])
else:
op_shape_val, ax_val, aty_val = sess.run(
[op_shape, ax, aty], feed_dict={a: a_np,
x: x_np,
y: y_np})
self.assertAllEqual(op_shape_val, [3, 2])
self.assertAllClose(ax_val, x_np)
self.assertAllClose(aty_val, y_np)
def testGradientsNegativeAxis(self):
x1 = [[1.0, 2.0, 3.0], [4.0, 5.0, 6.0]]
x2 = [[7.0, 8.0, 9.0], [10.0, 11.0, 12.0]]
inp_tensors = [constant_op.constant(x1, shape=(2, 3), dtype=dtypes.float32),
constant_op.constant(x2, shape=(2, 3), dtype=dtypes.float32)]
# Test concat gradient with axis == -2
self._testGradientsForAxis(inp_tensors, -2, output_shape=[4, 3])
# Test concat gradient with unknown-shape tensors.
x1_placeholder = array_ops.placeholder(dtypes.float32)
x2_placeholder = array_ops.placeholder(dtypes.float32)
inp_tensors_placeholders = [x1_placeholder, x2_placeholder]
feed_dict = {x1_placeholder: x1, x2_placeholder: x2}
self._testGradientsForAxis(
inp_tensors_placeholders, -1, output_shape=[2, 6], feed_dict=feed_dict)
# Test IndexedSlices concat gradient.
self._testIndexedSlicesGradientsForAxis(
inp_tensors, -2, output_shape=[2, 3], gather_indexes=[2, 0])
# We don't support calculating IndexedSlices concat gradient for
# negative indexes when rank is not known.
with self.assertRaises(ValueError):
self._testIndexedSlicesGradientsForAxis(
inp_tensors_placeholders, -2, output_shape=[2, 3],
gather_indexes=[2, 0], feed_dict=feed_dict)
def testProbScalarBaseDistributionNonScalarTransformDynamic(self):
# Scalar batch_shape.
df = np.asarray(2., dtype=np.float32)
# Non-scalar batch_shape.
loc = np.asarray([[0., 0, 0],
[1, 2, 3],
[1, 0, 1]],
dtype=np.float32)
scale_diag = np.asarray([[1., 2, 3],
[2, 3, 4],
[4, 5, 6]],
dtype=np.float32)
scale_tril = np.concatenate([[np.diag(scale_diag[i])]
for i in range(len(scale_diag))])
x = 2. * self._rng.rand(4, 3, 3).astype(np.float32) - 1.
expected_mst = _FakeVectorStudentT(
df=np.tile(df, reps=len(scale_diag)),
loc=loc,
scale_tril=scale_tril)
with self.cached_session():
df_pl = array_ops.placeholder(dtypes.float32, name="df")
loc_pl = array_ops.placeholder(dtypes.float32, name="loc")
scale_diag_pl = array_ops.placeholder(dtypes.float32, name="scale_diag")
feed_dict = {df_pl: df, loc_pl: loc, scale_diag_pl: scale_diag}
actual_mst = _VectorStudentT(df=df, loc=loc, scale_diag=scale_diag,
validate_args=True)
self.assertAllClose(expected_mst.log_prob(x),
actual_mst.log_prob(x).eval(feed_dict=feed_dict),
rtol=0., atol=1e-5)
self.assertAllClose(expected_mst.prob(x),
actual_mst.prob(x).eval(feed_dict=feed_dict),
rtol=0., atol=1e-5)
def testProbNonScalarBaseDistributionScalarTransformDynamic(self):
# Non-scalar batch_shape.
df = np.asarray([1., 2., 3.], dtype=np.float32)
# Scalar batch_shape.
loc = np.asarray([1, 2, 3], dtype=np.float32)
scale_diag = np.asarray([2, 3, 4], dtype=np.float32)
scale_tril = np.diag(scale_diag)
x = 2. * self._rng.rand(4, 3, 3).astype(np.float32) - 1.
expected_mst = _FakeVectorStudentT(
df=df,
loc=np.tile(loc[array_ops.newaxis, :], reps=[len(df), 1]),
scale_tril=np.tile(scale_tril[array_ops.newaxis, :, :],
reps=[len(df), 1, 1]))
with self.cached_session():
df_pl = array_ops.placeholder(dtypes.float32, name="df")
loc_pl = array_ops.placeholder(dtypes.float32, name="loc")
scale_diag_pl = array_ops.placeholder(dtypes.float32, name="scale_diag")
feed_dict = {df_pl: df, loc_pl: loc, scale_diag_pl: scale_diag}
actual_mst = _VectorStudentT(df=df, loc=loc, scale_diag=scale_diag,
validate_args=True)
self.assertAllClose(expected_mst.log_prob(x),
actual_mst.log_prob(x).eval(feed_dict=feed_dict),
rtol=0., atol=1e-5)
self.assertAllClose(expected_mst.prob(x),
actual_mst.prob(x).eval(feed_dict=feed_dict),
rtol=0., atol=1e-5)
def testSparseCount(self):
def _sparse(i):
return sparse_tensor.SparseTensorValue(
indices=np.array([[0, 0]]),
values=(i * np.array([1])),
dense_shape=np.array([1, 1]))
def make_scan_fn(step):
return lambda state, _: (_sparse(state.values[0] + step), state)
start = array_ops.placeholder(dtypes.int32, shape=[])
step = array_ops.placeholder(dtypes.int32, shape=[])
take = array_ops.placeholder(dtypes.int64, shape=[])
iterator = self._counting_dataset(
_sparse(start),
make_scan_fn(step)).take(take).make_initializable_iterator()
next_element = iterator.get_next()
with self.cached_session() as sess:
for start_val, step_val, take_val in [(0, 1, 10), (0, 1, 0), (10, 1, 10),
(10, 2, 10), (10, -1, 10),
(10, -2, 10)]:
sess.run(iterator.initializer,
feed_dict={start: start_val, step: step_val, take: take_val})
for expected, _ in zip(
itertools.count(start_val, step_val), range(take_val)):
self.assertEqual(expected, sess.run(next_element).values[0])
with self.assertRaises(errors.OutOfRangeError):
sess.run(next_element)
def testUnknownShape(self):
x = array_ops.placeholder(dtypes.float32)
num_dimensions = array_ops.placeholder(dtypes.int32)
ret = random_grad.add_leading_unit_dimensions(x, num_dimensions)
with self.cached_session() as sess:
ret_val = sess.run(ret, {x: np.ones([2, 2]), num_dimensions: 2})
self.assertAllEqual(ret_val.shape, [1, 1, 2, 2])
def testGradientInference(self, data_format):
# TODO(b/64270657): Use gradient_checker here in addition to comparing with
# this reference implementation.
channel = 3
x_shape = [2, 2, 6, channel]
scale_shape = [channel]
grad_val = np.random.random_sample(x_shape).astype(np.float32)
x_val = np.random.random_sample(x_shape).astype(np.float32)
scale_val = np.random.random_sample(scale_shape).astype(np.float32)
mean_val = np.random.random_sample(scale_shape).astype(np.float32)
var_val = np.random.random_sample(scale_shape).astype(np.float32)
data_format_src = "NHWC"
with self.cached_session() as sess, self.test_scope():
grad_val_converted = test_utils.ConvertBetweenDataFormats(
grad_val, data_format_src, data_format)
x_val_converted = test_utils.ConvertBetweenDataFormats(
x_val, data_format_src, data_format)
grad = array_ops.placeholder(
np.float32, shape=x_val_converted.shape, name="grad")
x = array_ops.placeholder(
np.float32, shape=x_val_converted.shape, name="x")
mean = array_ops.placeholder(np.float32, shape=scale_shape, name="mean")
var = array_ops.placeholder(np.float32, shape=scale_shape, name="var")
scale = array_ops.placeholder(np.float32, shape=scale_shape, name="scale")
with self.test_scope():
out = gen_nn_ops.fused_batch_norm_grad(
grad,
x,
scale,
mean,
var,
data_format=data_format,
is_training=False)
grad_x, grad_scale, grad_offset, _, _ = out
ref_x, ref_scale, ref_offset, _, _ = gen_nn_ops.fused_batch_norm_grad(
grad, x, scale, mean, var, data_format=data_format, is_training=False)
grad_x_val, grad_scale_val, grad_offset_val, = sess.run(
[grad_x, grad_scale, grad_offset], {
grad: grad_val_converted,
x: x_val_converted,
mean: mean_val,
var: var_val,
scale: scale_val
})
grad_x_ref, grad_scale_ref, grad_offset_ref, = sess.run(
[ref_x, ref_scale, ref_offset], {
grad: grad_val_converted,
x: x_val_converted,
mean: mean_val,
var: var_val,
scale: scale_val
})
self.assertAllClose(grad_x_val, grad_x_ref, atol=1e-2)
self.assertAllClose(grad_scale_val, grad_scale_ref, atol=1e-2)
self.assertAllClose(grad_offset_val, grad_offset_ref, atol=1e-3)
def simpleTest(self, arg0, arg1, global_jit_level):
config = config_pb2.ConfigProto()
config.graph_options.optimizer_options.global_jit_level = global_jit_level
with session_lib.Session(config=config) as sess:
a1 = array_ops.placeholder(dtypes.float32, [2, 2], name="a1")
a2 = array_ops.placeholder(dtypes.float32, [2, 2], name="a2")
# Two element-wise ops. We need at least two ops since single
# element clusters are not passed to XLA in fusion_only mode.
a3 = a1 * a2
a4 = a3 + a1
# A matmul to break XLA clustering.
a5 = math_ops.matmul(a4, a1)
# Two more element-wise ops.
a6 = a5 - a4
a7 = a6 + a2
run_metadata = config_pb2.RunMetadata()
output = test_utils.RunWithWarmup(
sess,
a7, {
a1: arg0,
a2: arg1
},
run_metadata=run_metadata,
options=config_pb2.RunOptions(
trace_level=config_pb2.RunOptions.FULL_TRACE))
labels = RunMetadataLabels(run_metadata)
xla_compile_count = sum("XlaCompile(" in x for x in labels)
xla_run_count = sum("XlaRun(" in x for x in labels)
self.assertEqual(xla_compile_count, xla_run_count)
return output, xla_run_count
def testGraphMode(self):
graph = ops.Graph()
with graph.as_default(), context.graph_mode():
array_ops.placeholder(dtypes.int32)
self.assertEqual(1, len(graph.get_operations()))
def testWrongShapeForReductionIndices(self):
reduction_axes = [[1], [2]]
c_unknown = array_ops.placeholder(dtypes.float32)
with self.assertRaisesWithPredicateMatch(ValueError,
".*must be at most rank 1.*"):
math_ops.reduce_sum(c_unknown, reduction_axes)
def get_placeholder(self):
if self.is_sparse:
return array_ops.sparse_placeholder(dtype=self.dtype)
return array_ops.placeholder(dtype=self.dtype,
shape=[None] + list(self.shape[1:]))
def _VerifyOneTest(self,
pool_func,
pool_grad_func,
input_sizes,
ksize,
strides,
padding,
data_format,
pool_grad_grad_func=None):
"""Verifies the output values of the pooling gradient function.
Args:
pool_func: Forward pooling function
pool_grad_func: Pooling gradient function for pool_grad_func
input_sizes: Input tensor dimensions.
ksize: The kernel size dimensions
strides: The stride dimensions
padding: Padding type.
data_format: The data format we use to run the pooling operation.
pool_grad_grad_func: Second-order gradient function, if available.
"""
total_size = np.prod(input_sizes)
# TODO(b/73062247): MaxPoolGradGrad can confuse gradients when x is equally
# maximal at 16 bits. Switch to np.random.randn when resolved.
x = np.arange(1, total_size + 1, dtype=np.float32)
x *= (np.random.randint(2, size=total_size) * 2 - 1) # Flip signs randomly
# Verify some specifically interesting values...
x[np.random.choice(total_size)] = np.inf
x[np.random.choice(total_size)] = -np.inf
# TODO(b/74222344): Fix nan handling for max pool grad.
# x[np.random.choice(total_size)] = np.nan
x = x.reshape(input_sizes)
with self.test_session() as sess:
# Use the forward pool function to compute some corresponding outputs
# (needed for the CPU device, and we need the shape in both cases).
with ops.device(self.CPU_DEVICE):
inputs = array_ops.placeholder(dtypes.float32, shape=input_sizes)
outputs = pool_func(
inputs,
ksize=ksize,
strides=strides,
padding=padding,
data_format="NHWC")
output_vals = np.array(sess.run(outputs, {inputs: x}))
output_gradient_vals = np.arange(
1, output_vals.size + 1, dtype=np.float32)
output_gradient_vals = output_gradient_vals.reshape(output_vals.shape)
output_grad_grad_vals = np.arange(1, x.size + 1, dtype=np.float32)
output_grad_grad_vals = output_grad_grad_vals.reshape(x.shape)
# Use the Tensorflow CPU pooling gradient to compute the expected input
# gradients.
with ops.device(self.CPU_DEVICE):
output_gradients = array_ops.placeholder(
dtypes.float32, shape=output_vals.shape)
expected_input_gradients = pool_grad_func(
inputs,
outputs,
output_gradients,
ksize=ksize,
strides=strides,
padding=padding,
data_format="NHWC")
expected_input_gradient_vals = sess.run(
expected_input_gradients,
{inputs: x,
output_gradients: output_gradient_vals})
output_grad_gradients = array_ops.placeholder(
dtypes.float32, shape=expected_input_gradient_vals.shape)
if pool_grad_grad_func is not None:
expected_grad_gradients = pool_grad_grad_func(
inputs,
outputs,
output_grad_gradients,
ksize=ksize,
strides=strides,
padding=padding,
data_format="NHWC")
expected_grad_gradients_vals = sess.run(expected_grad_gradients, {
inputs: x,
output_grad_gradients: output_grad_grad_vals
})
# Run the gradient op on the XLA device
with self.test_scope():
outputs = array_ops.placeholder(dtypes.float32, shape=output_vals.shape)
xla_inputs = inputs
xla_outputs = outputs
xla_output_gradients = output_gradients
xla_output_grad_gradients = output_grad_gradients
xla_ksize = ksize
xla_strides = strides
if data_format == "NCHW":
xla_inputs = NHWCToNCHW(inputs)
xla_outputs = NHWCToNCHW(outputs)
xla_output_gradients = NHWCToNCHW(output_gradients)
xla_output_grad_gradients = NHWCToNCHW(output_grad_gradients)
xla_ksize = NHWCToNCHW(ksize)
xla_strides = NHWCToNCHW(strides)
actual_input_gradients = pool_grad_func(
xla_inputs,
xla_outputs,
xla_output_gradients,
ksize=xla_ksize,
strides=xla_strides,
padding=padding,
data_format=data_format)
if data_format == "NCHW":
actual_input_gradients = NCHWToNHWC(actual_input_gradients)
if pool_grad_grad_func is not None:
actual_grad_gradients = pool_grad_grad_func(
xla_inputs,
xla_outputs,
xla_output_grad_gradients,
ksize=xla_ksize,
strides=xla_strides,
padding=padding,
data_format=data_format)
if data_format == "NCHW":
actual_grad_gradients = NCHWToNHWC(actual_grad_gradients)
actual_input_gradients_vals = sess.run(actual_input_gradients, {
inputs: x,
outputs: output_vals,
output_gradients: output_gradient_vals
})
# Compare the Tensorflow and XLA results.
self.assertAllClose(
expected_input_gradient_vals,
actual_input_gradients_vals,
rtol=1e-4,
atol=1e-6)
self.assertShapeEqual(actual_input_gradients_vals, inputs)
if pool_grad_grad_func is not None:
actual_grad_gradients_vals = sess.run(
actual_grad_gradients, {
inputs: x,
outputs: output_vals,
output_grad_gradients: output_grad_grad_vals
})
# Compare the Tensorflow and XLA results.
self.assertAllClose(
expected_grad_gradients_vals,
actual_grad_gradients_vals,
rtol=1e-4,
atol=1e-6)
self.assertShapeEqual(actual_grad_gradients_vals, outputs)
def _export_estimator(estimator,
export_dir,
signature_fn,
input_fn,
default_batch_size,
exports_to_keep,
input_feature_key=None,
use_deprecated_input_fn=True,
prediction_key=None):
if use_deprecated_input_fn:
input_fn = input_fn or _default_input_fn
elif input_fn is None:
raise ValueError('input_fn must be defined.')
checkpoint_path = tf_saver.latest_checkpoint(estimator._model_dir)
with ops.Graph().as_default() as g:
contrib_variables.create_global_step(g)
if use_deprecated_input_fn:
examples = array_ops.placeholder(dtype=dtypes.string,
shape=[default_batch_size],
name='input_example_tensor')
features = input_fn(estimator, examples)
else:
features, _ = input_fn()
examples = None
if input_feature_key is not None:
examples = features.pop(input_feature_key)
if not features and not examples:
raise ValueError('Either features or examples must be defined.')
predictions = estimator._get_predict_ops(features)
if prediction_key is not None:
predictions = predictions[prediction_key]
# Explicit signature_fn takes priority
if signature_fn:
default_signature, named_graph_signatures = signature_fn(
examples, features, predictions)
else:
try:
# Some estimators provide a signature function.
# TODO(zakaria): check if the estimator has this function,
# raise helpful error if not
signature_fn = estimator._create_signature_fn()
default_signature, named_graph_signatures = (signature_fn(
examples, features, predictions))
except AttributeError:
logging.warn(
'Change warning: `signature_fn` will be required after'
'2016-08-01.\n'
'Using generic signatures for now. To maintain this behavior, '
'pass:\n'
' signature_fn=export.generic_signature_fn\n'
'Also consider passing a regression or classification signature; '
'see cl/126430915 for an example.')
default_signature, named_graph_signatures = generic_signature_fn(
examples, features, predictions)
if exports_to_keep is not None:
exports_to_keep = gc.largest_export_versions(exports_to_keep)
return _export_graph(g,
_get_saver(),
checkpoint_path,
export_dir,
default_graph_signature=default_signature,
named_graph_signatures=named_graph_signatures,
exports_to_keep=exports_to_keep)
def testSlice(self):
tf_val = array_ops.placeholder(dtypes.int32, shape=(4, ))[0:2]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([None, None], c_val.as_list())
# begin:end
tf_val = constant_op.constant([10, 20, 30])[1:3]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([20, 30], c_val.as_list())
# begin:end:stride
tf_val = array_ops.strided_slice(constant_op.constant([10, 20, 30]),
[1], [3],
strides=[2])
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([20], c_val.as_list())
# [1, 2, 16, 37, None, 48]
tf_val_orig = array_ops.concat(
[[1, 2, 16, 37],
array_ops.placeholder(dtypes.int32, shape=(1, )), [48]], 0)
# begin: no end
tf_val = tf_val_orig[2:]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([16, 37, None, 48], c_val.as_list())
# begin::negative slice
tf_val = tf_val_orig[2::-1]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([16, 2, 1], c_val.as_list())
# :end:negative slice
tf_val = tf_val_orig[:1:-2]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([48, 37], c_val.as_list())
# begin:end:negative slice
tf_val = tf_val_orig[3:1:-1]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([37, 16], c_val.as_list())
# begin:negative end:slice
tf_val = tf_val_orig[1:-3:1]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([2, 16], c_val.as_list())
# negative begin::slice
tf_val = tf_val_orig[-3::1]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([37, None, 48], c_val.as_list())
# negative begin::negative slice
tf_val = tf_val_orig[-3::-1]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([37, 16, 2, 1], c_val.as_list())
# negative begin:negative end:negative slice
tf_val = tf_val_orig[-3:-5:-1]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([37, 16], c_val.as_list())
# Do not support shape inference for additional arguments
tf_val = constant_op.constant([10, 20, 30])[...]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual([None, None, None], c_val.as_list())
# Do not support shape inference for tensor slices.
tf_val = constant_op.constant(
[10, 20, 30])[array_ops.placeholder(dtypes.int32, shape=()):]
c_val = tensor_util.constant_value_as_shape(tf_val)
self.assertEqual(tensor_shape.unknown_shape(), c_val)
# Do not support shape inference for higher rank
with self.assertRaises(ValueError):
tf_val = constant_op.constant([[10], [20], [30]])[:, 0:]
c_val = tensor_util.constant_value_as_shape(tf_val)
def dynamic_run(fun, x_value):
x_value = np.array(x_value)
x = array_ops.placeholder(dtypes.float32, name="x")
return sess.run(fun(x), feed_dict={x: x_value})
def testPadShapeInference(self):
a = array_ops.placeholder(np.float32, shape=(2, 3))
c = xla.pad(a,
padding_value=7,
padding_low=[2, 1],
padding_high=[1, 2],
padding_interior=[1, 4])
self.assertEqual(c.shape, tensor_shape.TensorShape([6, 14]))
c = xla.pad(a,
padding_value=7,
padding_low=[2, -2],
padding_high=[1, -2],
padding_interior=[1, 2])
self.assertEqual(c.shape, tensor_shape.TensorShape([6, 3]))
c = xla.pad(array_ops.placeholder(np.float32, shape=(None, 2)),
padding_value=7,
padding_low=[0, 1],
padding_high=[0, 2],
padding_interior=[0, 4])
self.assertEqual(c.shape.as_list(), [None, 9])
# 0-sized input dimension and interior padding
c = xla.pad(array_ops.placeholder(np.float32, shape=(2, 0)),
padding_value=7,
padding_low=[2, 1],
padding_high=[1, 1],
padding_interior=[1, 2])
self.assertEqual(c.shape, tensor_shape.TensorShape([6, 2]))
with self.assertRaisesRegex(
ValueError,
'padding_value input must be scalar, found rank 1 '):
xla.pad(a,
padding_value=[0, 1],
padding_low=[0, 0],
padding_high=[0, 0],
padding_interior=[0, 0])
with self.assertRaisesRegex(
ValueError, 'padding_low must be a 1D tensor of size 2 '):
xla.pad(a,
padding_value=7,
padding_low=[0, 0, 0],
padding_high=[0, 0],
padding_interior=[0, 0])
with self.assertRaisesRegex(
ValueError, 'padding_high must be a 1D tensor of size 2 '):
xla.pad(a,
padding_value=7,
padding_low=[0, 0],
padding_high=[0, 0, 0],
padding_interior=[0, 0])
with self.assertRaisesRegex(
ValueError, 'padding_interior must be a 1D tensor of size 2 '):
xla.pad(a,
padding_value=7,
padding_low=[0, 0],
padding_high=[0, 0],
padding_interior=[0])
with self.assertRaisesRegex(
ValueError,
'padding_interior must contain only non-negative values, found -2 '
):
xla.pad(a,
padding_value=7,
padding_low=[0, 0],
padding_high=[0, 0],
padding_interior=[-2, 0])
with self.assertRaisesRegex(
ValueError,
'resulting padded dimension has negative size -1 '):
xla.pad(a,
padding_value=7,
padding_low=[-3, 0],
padding_high=[0, 0],
padding_interior=[0, 0])
def test_condition_tensor_multiple_shapes(self):
for tensor_shape in [(4, 1), (4, 2), (4, 2, 6), (None, 5, 3)]:
for conditioning_shape in [(4, 1), (4, 8), (4, 5, 3)]:
conditioning_utils.condition_tensor(
array_ops.placeholder(dtypes.float32, tensor_shape),
array_ops.placeholder(dtypes.float32, conditioning_shape))
def _VerifyValues(self,
tensor_in_sizes,
filter_in_sizes,
stride,
padding,
data_type,
data_format="NHWC"):
"""Verifies the output values of the convolution function.
Args:
tensor_in_sizes: Input tensor dimensions in
[batch, input_rows, input_cols, input_depth].
filter_in_sizes: Filter tensor dimensions in
[filter_rows, filter_cols, input_depth, depth_multiplier].
stride: Stride.
padding: Padding type.
data_type: The data type to use.
data_format: The data_format of the input. "NHWC" or "NCHW".
"""
total_size_1 = 1
total_size_2 = 1
for s in tensor_in_sizes:
total_size_1 *= s
for s in filter_in_sizes:
total_size_2 *= s
# Initializes the input and filter tensor with numbers incrementing from 1.
x1 = np.array([f * 1.0 for f in range(1, total_size_1 + 1)],
dtype=data_type).reshape(tensor_in_sizes)
x2 = np.array([f * 1.0 for f in range(1, total_size_2 + 1)],
dtype=data_type).reshape(filter_in_sizes)
with self.cached_session() as sess:
if data_type == np.float32:
tolerance = 1e-4
else:
self.assertEqual(data_type, np.float64)
tolerance = 1e-8
t1 = array_ops.placeholder(shape=tensor_in_sizes, dtype=data_type)
t2 = array_ops.placeholder(shape=filter_in_sizes, dtype=data_type)
native_t1 = t1
strides = [1, stride, stride, 1]
if data_format == "NCHW":
# Transpose from NWHC input to NCHW
# Ex. [4, 5, 5, 48] to [4, 48, 5, 5]
native_t1 = array_ops.transpose(t1, [0, 3, 1, 2])
strides = [1, 1, stride, stride]
with self.test_scope():
conv_native = nn_ops.depthwise_conv2d_native(
native_t1,
t2,
strides=strides,
data_format=data_format,
padding=padding)
if data_format == "NCHW":
# Transpose back from NCHW to NHWC
conv_native = array_ops.transpose(conv_native, [0, 2, 3, 1])
with ops.device("CPU"):
conv_interface = ReferenceDepthwiseConv2D(
t1, t2, strides=[1, stride, stride, 1], padding=padding)
native_result = sess.run(conv_native, {t1: x1, t2: x2})
interface_result = sess.run(conv_interface, {t1: x1, t2: x2})
print("data_type:", data_type, "max diff = ",
np.amax(np.absolute(native_result - interface_result)))
self.assertAllClose(np.ravel(native_result),
np.ravel(interface_result),
rtol=tolerance)
def tfassert_eq(_):
x = array_ops.placeholder(dtypes.int32, name='x_hold')
y = array_ops.placeholder(dtypes.int32, name='y_hold')
control_flow_ops.Assert(math_ops.equal(x, y), ['Expected x == y.'],
name='assert_eq')
math_ops.add(x, math_ops.negative(y), name='x_y_diff')
def test_condition_tensor_from_onehot(self):
conditioning_utils.condition_tensor_from_onehot(
array_ops.placeholder(dtypes.float32, (5, 4, 1)),
array_ops.placeholder(dtypes.float32, (5, 10)))
def tfmatmulandadd(_):
# This tests multiple outputs.
x = array_ops.placeholder(dtypes.float32, name='x_hold')
y = array_ops.placeholder(dtypes.float32, name='y_hold')
math_ops.matmul(x, y, name='x_y_prod')
math_ops.add(x, y, name='x_y_sum')
def tfcond(_):
p = array_ops.placeholder(dtypes.bool, name='p_hold')
x = array_ops.placeholder(dtypes.int32, name='x_hold')
y = array_ops.placeholder(dtypes.int32, name='y_hold')
z = control_flow_ops.cond(p, lambda: x, lambda: y)
array_ops.identity(z, name='result')
def tfgather(_):
params = array_ops.placeholder(dtypes.float32, name='params')
indices = array_ops.placeholder(dtypes.int32, name='indices')
array_ops.gather(params, indices, name='gather_output')
def tftop_k(_):
x = array_ops.placeholder(dtypes.int32, shape=[5], name='x')
output = nn_ops.top_k(x, 2, name='values')
array_ops.identity(output[1], name='indices')
def testKafkaDataset(self):
topics = array_ops.placeholder(dtypes.string, shape=[None])
num_epochs = array_ops.placeholder(dtypes.int64, shape=[])
batch_size = array_ops.placeholder(dtypes.int64, shape=[])
repeat_dataset = kafka_dataset_ops.KafkaDataset(
servers="stream-mnist-a:9092",
topics=topics,
group="test",
eof=True).repeat(num_epochs)
batch_dataset = repeat_dataset.batch(batch_size)
iterator = iterator_ops.Iterator.from_structure(
batch_dataset.output_types)
init_op = iterator.make_initializer(repeat_dataset)
init_batch_op = iterator.make_initializer(batch_dataset)
get_next = iterator.get_next()
with self.test_session() as sess:
# Basic test: read from topic 0.
sess.run(init_op,
feed_dict={
topics: ["test:0:0:4"],
num_epochs: 1
})
for i in range(5):
self.assertEqual(
str("D" + str(i)).encode('utf-8'), sess.run(get_next))
with self.assertRaises(errors.OutOfRangeError):
sess.run(get_next)
# Basic test: read from topic 1.
sess.run(init_op,
feed_dict={
topics: ["test:0:5:-1"],
num_epochs: 1
})
for i in range(5):
self.assertEqual(
str("D" + str(i + 5)).encode('utf-8'), sess.run(get_next))
with self.assertRaises(errors.OutOfRangeError):
sess.run(get_next)
# Basic test: read from both topics.
sess.run(init_op,
feed_dict={
topics: ["test:0:0:4", "test:0:5:-1"],
num_epochs: 1
})
for j in range(2):
for i in range(5):
self.assertEqual(
str("D" + str(i + j * 5)).encode('utf-8'),
sess.run(get_next))
with self.assertRaises(errors.OutOfRangeError):
sess.run(get_next)
# Test repeated iteration through both files.
sess.run(init_op,
feed_dict={
topics: ["test:0:0:4", "test:0:5:-1"],
num_epochs: 10
})
for _ in range(10):
for j in range(2):
for i in range(5):
self.assertEqual(
str("D" + str(i + j * 5)).encode('utf-8'),
sess.run(get_next))
with self.assertRaises(errors.OutOfRangeError):
sess.run(get_next)
# Test batched and repeated iteration through both files.
sess.run(init_batch_op,
feed_dict={
topics: ["test:0:0:4", "test:0:5:-1"],
num_epochs: 10,
batch_size: 5
})
for _ in range(10):
self.assertAllEqual(
[str("D" + str(i)).encode('utf-8') for i in range(5)],
sess.run(get_next))
self.assertAllEqual(
[str("D" + str(i + 5)).encode('utf-8') for i in range(5)],
sess.run(get_next))
def tfmatmul(_):
x = array_ops.placeholder(dtypes.float32, name='x_hold')
y = array_ops.placeholder(dtypes.float32, name='y_hold')
math_ops.matmul(x, y, name='x_y_prod')