def testSparseRepeatedIndices(self):
for dtype in [dtypes.half, dtypes.float32, dtypes.float64]:
with self.cached_session():
repeated_index_update_var = variables.Variable([[1.0], [2.0]],
dtype=dtype)
aggregated_update_var = variables.Variable([[1.0], [2.0]],
dtype=dtype)
grad_repeated_index = ops.IndexedSlices(
constant_op.constant([0.1, 0.1], shape=[2, 1],
dtype=dtype),
constant_op.constant([1, 1]), constant_op.constant([2, 1]))
grad_aggregated = ops.IndexedSlices(
constant_op.constant([0.2], shape=[1, 1], dtype=dtype),
constant_op.constant([1]), constant_op.constant([2, 1]))
repeated_update = reg_adagrad_optimizer.RegAdagradOptimizer(
3.0).apply_gradients([(grad_repeated_index,
repeated_index_update_var)])
aggregated_update = reg_adagrad_optimizer.RegAdagradOptimizer(
3.0).apply_gradients([(grad_aggregated,
aggregated_update_var)])
variables.global_variables_initializer().run()
self.assertAllClose(aggregated_update_var.eval(),
repeated_index_update_var.eval())
for _ in range(3):
repeated_update.run()
aggregated_update.run()
self.assertAllClose(aggregated_update_var.eval(),
repeated_index_update_var.eval())
def doTestBasic(self, use_locking=False, use_resource=False):
for dtype in [dtypes.half, dtypes.float32, dtypes.float64]:
with self.cached_session():
if use_resource:
var0 = resource_variable_ops.ResourceVariable([1.0, 2.0],
dtype=dtype)
var1 = resource_variable_ops.ResourceVariable([3.0, 4.0],
dtype=dtype)
else:
var0 = variables.Variable([1.0, 2.0], dtype=dtype)
var1 = variables.Variable([3.0, 4.0], dtype=dtype)
grads0 = constant_op.constant([0.1, 0.1], dtype=dtype)
grads1 = constant_op.constant([0.01, 0.01], dtype=dtype)
ada_opt = reg_adagrad_optimizer.RegAdagradOptimizer(
3.0,
initial_accumulator_value=0.1,
use_locking=use_locking)
ada_update = ada_opt.apply_gradients(
zip([grads0, grads1], [var0, var1]))
variables.global_variables_initializer().run()
# Fetch params to validate initial values
self.assertAllClose([1.0, 2.0], var0.eval())
self.assertAllClose([3.0, 4.0], var1.eval())
# Run 3 steps of adagrad
for _ in range(3):
ada_update.run()
# Validate updated params
self.assertAllCloseAccordingToType(
np.array([-1.6026098728179932, -0.6026098728179932]),
var0.eval())
self.assertAllCloseAccordingToType(
np.array([2.715679168701172, 3.715679168701172]),
var1.eval())
def testSparseSkipUpdatingSlots(self):
iav = 0.130005 # A value that works with float16
for dtype in [dtypes.half, dtypes.float32, dtypes.float64]:
with self.cached_session():
var0 = variables.Variable([[1.0], [2.0]], dtype=dtype)
var1 = variables.Variable([[3.0], [4.0]], dtype=dtype)
grads0 = ops.IndexedSlices(
constant_op.constant([0.1], shape=[1, 1], dtype=dtype),
constant_op.constant([0]), constant_op.constant([2, 1]))
grads1 = ops.IndexedSlices(
constant_op.constant([0.01], shape=[1, 1], dtype=dtype),
constant_op.constant([1]), constant_op.constant([2, 1]))
ada_opt = reg_adagrad_optimizer.RegAdagradOptimizer(
3.0, initial_accumulator_value=iav)
with ada_opt.avoid_updating_slots():
ada_update = ada_opt.apply_gradients(
zip([grads0, grads1], [var0, var1]))
slot0 = ada_opt.get_slot(var0, "accumulator")
self.assertEquals(slot0.get_shape(), var0.get_shape())
slot1 = ada_opt.get_slot(var1, "accumulator")
self.assertEquals(slot1.get_shape(), var1.get_shape())
variables.global_variables_initializer().run()
# Fetch params to validate initial values
self.assertAllClose([[1.0], [2.0]], var0.eval())
self.assertAllClose([[3.0], [4.0]], var1.eval())
# Run 3 step of sgd
for _ in range(3):
ada_update.run()
# Validate that ada_opt's slots are not updated.
self.assertAllCloseAccordingToType(np.array([[iav], [iav]]),
slot0.eval())
self.assertAllCloseAccordingToType(np.array([[iav], [iav]]),
slot1.eval())
def testSkipUpdatingSlots(self):
iav = 0.130005 # A value that works with float16
for dtype in [dtypes.half, dtypes.float32, dtypes.float64]:
with self.cached_session():
var0 = variables.Variable([1.0, 2.0], dtype=dtype)
var1 = variables.Variable([3.0, 4.0], dtype=dtype)
grads0 = constant_op.constant([0.1, 0.1], dtype=dtype)
grads1 = constant_op.constant([0.01, 0.01], dtype=dtype)
ada_opt = reg_adagrad_optimizer.RegAdagradOptimizer(
3.0, initial_accumulator_value=iav)
# Apply the optimizer twice. Both applications will use
# the same accums.
with ada_opt.avoid_updating_slots():
ada_update = ada_opt.apply_gradients(
zip([grads0, grads1], [var0, var1]))
self.assertEqual(["accumulator"], ada_opt.get_slot_names())
slot0 = ada_opt.get_slot(var0, "accumulator")
self.assertEquals(slot0.get_shape(), var0.get_shape())
slot1 = ada_opt.get_slot(var1, "accumulator")
self.assertEquals(slot1.get_shape(), var1.get_shape())
variables.global_variables_initializer().run()
# Fetch params to validate initial values.
self.assertAllClose([1.0, 2.0], var0.eval())
self.assertAllClose([3.0, 4.0], var1.eval())
# Mix the first and the second adagrad for 3 steps.
for _ in range(3):
ada_update.run()
# Validate that ada_opt's slots are not updated.
self.assertAllCloseAccordingToType(np.array([iav, iav]),
slot0.eval())
self.assertAllCloseAccordingToType(np.array([iav, iav]),
slot1.eval())
def testSharing(self):
for dtype in [dtypes.half, dtypes.float32, dtypes.float64]:
with self.cached_session():
var0 = variables.Variable([1.0, 2.0], dtype=dtype)
var1 = variables.Variable([3.0, 4.0], dtype=dtype)
grads0 = constant_op.constant([0.1, 0.1], dtype=dtype)
grads1 = constant_op.constant([0.01, 0.01], dtype=dtype)
ada_opt = reg_adagrad_optimizer.RegAdagradOptimizer(3.0)
# Apply the optimizer twice. Both applications will use
# the same accums.
ada_update1 = ada_opt.apply_gradients(
zip([grads0, grads1], [var0, var1]))
ada_update2 = ada_opt.apply_gradients(
zip([grads0, grads1], [var0, var1]))
self.assertEqual(["accumulator"], ada_opt.get_slot_names())
slot0 = ada_opt.get_slot(var0, "accumulator")
self.assertEquals(slot0.get_shape(), var0.get_shape())
slot1 = ada_opt.get_slot(var1, "accumulator")
self.assertEquals(slot1.get_shape(), var1.get_shape())
variables.global_variables_initializer().run()
# Fetch params to validate initial values.
self.assertAllClose([1.0, 2.0], var0.eval())
self.assertAllClose([3.0, 4.0], var1.eval())
# Mix the first and the second adagrad for 3 steps.
ada_update1.run()
ada_update2.run()
ada_update1.run()
# Validate updated params (the same as with only 1 RegAdagrad).
self.assertAllCloseAccordingToType(
np.array([-1.6026098728179932, -0.6026098728179932]),
var0.eval())
self.assertAllCloseAccordingToType(
np.array([2.715679168701172, 3.715679168701172]),
var1.eval())
def testSparseStability(self):
for dtype in [dtypes.half, dtypes.float32, dtypes.float64]:
with self.cached_session():
shape = [1, 6]
var0 = variables.Variable([[
0.00872496, -0.106952, 0.110467, 0.226505, -0.0147257,
-0.0105945
]],
dtype=dtype)
grads0 = ops.IndexedSlices(
constant_op.constant([[
-5.91278e-05, 5.31673e-05, -2.5779e-06, 4.29153e-05,
-8.4877e-05, -9.48906e-05
]],
shape=shape,
dtype=dtype),
constant_op.constant([0]), constant_op.constant(shape))
ada_opt = reg_adagrad_optimizer.RegAdagradOptimizer(
1.0, initial_accumulator_value=0.1)
ada_update = ada_opt.apply_gradients(zip([grads0], [var0]))
self.assertEqual(["accumulator"], ada_opt.get_slot_names())
slot0 = ada_opt.get_slot(var0, "accumulator")
init = variables.global_variables_initializer()
for _ in range(100):
init.run()
ada_update.run()
self.assertAllCloseAccordingToType(
np.array([[0.1, 0.1, 0.1, 0.1, 0.1, 0.1]]),
slot0.eval())
self.assertAllCloseAccordingToType(
np.array([[
0.00891194, -0.10712013, 0.11047515, 0.22636929,
-0.0144573, -0.01029443
]]), var0.eval())
def testSparseBasic(self):
for dtype in [dtypes.half, dtypes.float32, dtypes.float64]:
with self.cached_session():
var0 = variables.Variable([[1.0], [2.0]], dtype=dtype)
var1 = variables.Variable([[3.0], [4.0]], dtype=dtype)
grads0 = ops.IndexedSlices(
constant_op.constant([0.1], shape=[1, 1], dtype=dtype),
constant_op.constant([0]), constant_op.constant([2, 1]))
grads1 = ops.IndexedSlices(
constant_op.constant([0.01], shape=[1, 1], dtype=dtype),
constant_op.constant([1]), constant_op.constant([2, 1]))
ada_opt = reg_adagrad_optimizer.RegAdagradOptimizer(
3.0, initial_accumulator_value=0.1)
ada_update = ada_opt.apply_gradients(
zip([grads0, grads1], [var0, var1]))
variables.global_variables_initializer().run()
# Fetch params to validate initial values
self.assertAllClose([[1.0], [2.0]], var0.eval())
self.assertAllClose([[3.0], [4.0]], var1.eval())
# Run 3 step of sgd
for _ in range(3):
ada_update.run()
# Validate updated params
self.assertAllCloseAccordingToType(
np.array([[-1.6026098728179932], [2.0]]), var0.eval())
self.assertAllCloseAccordingToType(
np.array([[3.0], [3.715679168701172]]), var1.eval())
def testDynamicShapeVariable_Ok(self):
with self.cached_session():
v = variable_scope.get_variable(
"v",
initializer=constant_op.constant(1.),
validate_shape=False)
self.assertFalse(v.shape.is_fully_defined())
# Creating optimizer should cause no exception.
reg_adagrad_optimizer.RegAdagradOptimizer(
3.0, initial_accumulator_value=0.1)
def testSparseRepeatedIndicesResourceVariable(self):
for dtype in [dtypes.half, dtypes.float32, dtypes.float64]:
with self.cached_session():
var_repeated = resource_variable_ops.ResourceVariable(
[1.0, 2.0], dtype=dtype)
loss_repeated = math_ops.reduce_sum(
embedding_ops.embedding_lookup(var_repeated, [0, 0]))
var_aggregated = resource_variable_ops.ResourceVariable(
[1.0, 2.0], dtype=dtype)
loss_aggregated = 2 * math_ops.reduce_sum(
embedding_ops.embedding_lookup(var_aggregated, [0]))
update_op_repeated = reg_adagrad_optimizer.RegAdagradOptimizer(
2.0).minimize(loss_repeated)
update_op_aggregated = reg_adagrad_optimizer.RegAdagradOptimizer(
2.0).minimize(loss_aggregated)
variables.global_variables_initializer().run()
self.assertAllCloseAccordingToType(var_repeated.eval(),
var_aggregated.eval())
for _ in range(3):
update_op_repeated.run()
update_op_aggregated.run()
self.assertAllCloseAccordingToType(var_repeated.eval(),
var_aggregated.eval())
def testMinimizeSparseResourceVariable(self):
for dtype in [dtypes.half, dtypes.float32, dtypes.float64]:
with self.cached_session():
var0 = resource_variable_ops.ResourceVariable(
[[1.0, 2.0], [3.0, 4.0]], dtype=dtype)
x = constant_op.constant([[4.0], [5.0]], dtype=dtype)
pred = math_ops.matmul(
embedding_ops.embedding_lookup([var0], [0]), x)
loss = pred * pred
sgd_op = reg_adagrad_optimizer.RegAdagradOptimizer(
1.0).minimize(loss)
variables.global_variables_initializer().run()
# Fetch params to validate initial values
self.assertAllCloseAccordingToType([[1.0, 2.0], [3.0, 4.0]],
var0.eval())
# Run 1 step of sgd
sgd_op.run()
# Validate updated params
self.assertAllCloseAccordingToType([[0, 1], [3, 4]],
var0.eval(),
atol=0.01)