def testScatterAdd(self):
with self.test_session():
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[1, 1])
resource_variable_ops.assign_variable_op(handle, constant_op.constant([[1]], dtype=dtypes.int32)).run()
resource_variable_ops.resource_scatter_add(
handle, [0], constant_op.constant([[2]], dtype=dtypes.int32)
).run()
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertEqual(read.eval(), [[3]])
def testScatterAdd(self):
with self.test_session():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1, 1])
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[1]], dtype=dtypes.int32)).run()
resource_variable_ops.resource_scatter_add(
handle, [0], constant_op.constant([[2]], dtype=dtypes.int32)).run()
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertEqual(read.eval(), [[3]])
def _resource_apply_sparse(self, grad, var, indices, apply_state=None):
var_device, var_dtype = var.device, var.dtype.base_dtype
coefficients = ((apply_state or {}).get((var_device, var_dtype))
or self._fallback_apply_state(var_device, var_dtype))
acc = self.get_slot(var, 'accumulator')
with ops.control_dependencies([
resource_variable_ops.resource_scatter_add(
acc.handle, indices, math_ops.square(grad))
]):
acc_t_slice = acc.sparse_read(indices)
var_update = resource_variable_ops.resource_scatter_add(
var.handle, indices, coefficients['neg_lr_t'] * grad /
(math_ops.sqrt(acc_t_slice) + coefficients['epsilon']))
return var_update
def _resource_scatter_add(self, x, i, v):
#
# Daqi - handles incompatibility between the old Variable and new ResourceVariable. For now they refer to different C++ implementations.
# Future releases should see a merge of scatter_add and resource_scatter_add.
#
with tf.control_dependencies(
[resource_variable_ops.resource_scatter_add(x.handle, i, v)]):
return x.value()
def _resource_apply_sparse_duplicate_indices(self, grad, var, indices):
if self._momentum:
return super(SGD, self)._resource_apply_sparse_duplicate_indices(
grad, var, indices)
else:
return resource_variable_ops.resource_scatter_add(
var.handle, indices, -grad * math_ops.cast(
self._get_hyper("learning_rate"), grad.dtype.base_dtype))
def _resource_apply_sparse_duplicate_indices(self, grad, var, indices):
if self._momentum:
return super(SGD, self)._resource_apply_sparse_duplicate_indices(
grad, var, indices)
else:
return resource_variable_ops.resource_scatter_add(
var.handle, indices, -grad * math_ops.cast(
self._get_hyper("learning_rate"), grad.dtype.base_dtype))
def _resource_scatter_add(self, x, i, v):
#
# We use x.handle for ResourceVariables.
# resource_scatter_add and scatter_add refer to different ops in C++.
#
with tf.control_dependencies(
[resource_variable_ops.resource_scatter_add(x.handle, i, v)]):
return x.value()
def _resource_apply_sparse_duplicate_indices(self, grad, var, indices, state):
if self._use_momentum:
return super(SGD, self)._resource_apply_sparse_duplicate_indices(
grad, var, indices, state)
else:
lr = state.get_hyper("learning_rate", grad.dtype.base_dtype)
return resource_variable_ops.resource_scatter_add(var.handle, indices,
-grad * lr)
def _resource_apply_sparse_duplicate_indices(self, grad, var, indices,
state):
if self._use_momentum:
return super(SGD, self)._resource_apply_sparse_duplicate_indices(
grad, var, indices, state)
else:
lr = state.get_hyper("learning_rate", grad.dtype.base_dtype)
return resource_variable_ops.resource_scatter_add(
var.handle, indices, -grad * lr)
def _resource_apply_sparse_duplicate_indices(self, grad, var, indices):
if self._momentum:
return super(SGD, self)._resource_apply_sparse_duplicate_indices(
grad, var, indices)
else:
var_dtype = var.dtype.base_dtype
lr_t = self._decayed_lr(var_dtype)
return resource_variable_ops.resource_scatter_add(var.handle, indices,
-grad * lr_t)
def testScatterAdd(self):
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1, 1])
self.evaluate(resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[1]], dtype=dtypes.int32)))
self.evaluate(resource_variable_ops.resource_scatter_add(
handle, [0], constant_op.constant([[2]], dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertEqual(self.evaluate(read), [[3]])
def _resource_apply_sparse_duplicate_indices(self, grad, var, indices):
if self._momentum:
return super(SGD, self)._resource_apply_sparse_duplicate_indices(
grad, var, indices)
else:
var_dtype = var.dtype.base_dtype
lr_t = self._decayed_lr(var_dtype)
return resource_variable_ops.resource_scatter_add(var.handle, indices,
-grad * lr_t)
def testScatterAdd(self):
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1, 1])
self.evaluate(resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[1]], dtype=dtypes.int32)))
self.evaluate(resource_variable_ops.resource_scatter_add(
handle, [0], constant_op.constant([[2]], dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertEqual(self.evaluate(read), [[3]])
def _resource_apply_sparse_duplicate_indices(self, grad, var, indices, **kwargs):
if self._momentum:
return super(CustomSGD, self)._resource_apply_sparse_duplicate_indices(grad, var, indices, **kwargs)
else:
var_device, var_dtype = var.device, var.dtype.base_dtype
coefficients = kwargs.get("apply_state", {}).get((var_device, var_dtype)) or self._fallback_apply_state(
var_device, var_dtype
)
return resource_variable_ops.resource_scatter_add(var.handle, indices, -grad * coefficients["lr_t"])
def _assign_sub(self, ref, updates, indices=None):
if indices is not None:
if isinstance(ref, tf.Variable):
return tf.scatter_sub(ref, indices, updates, use_locking=self._use_locking)
elif isinstance(ref, resource_variable_ops.ResourceVariable):
with tf.control_dependencies([resource_variable_ops.resource_scatter_add(ref.handle, indices, -updates)]):
return ref.value()
else:
raise TypeError("did not expect type %r" % type(ref))
else:
return tf.assign_sub(ref, updates, use_locking=self._use_locking)
def _assign_sub(self, ref, updates, indices=None):
if indices is not None:
if isinstance(ref, tf.Variable):
return tf.scatter_sub(ref, indices, updates, use_locking=self._use_locking)
elif isinstance(ref, resource_variable_ops.ResourceVariable):
with tf.control_dependencies([resource_variable_ops.resource_scatter_add(ref.handle, indices, -updates)]):
return ref.value()
else:
raise TypeError("did not expect type %r" % type(ref))
else:
return tf.assign_sub(ref, updates, use_locking=self._use_locking)
def testScatterAddScalar(self):
with self.test_session() as sess, self.test_scope():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1, 1])
sess.run(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[1]], dtype=dtypes.int32)))
sess.run(
resource_variable_ops.resource_scatter_add(
handle, [0], constant_op.constant(2, dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertEqual(self.evaluate(read), [[3]])
def testScatterAddScalar(self):
with self.session() as sess, self.test_scope():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1, 1])
sess.run(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[1]], dtype=dtypes.int32)))
sess.run(
resource_variable_ops.resource_scatter_add(
handle, [0], constant_op.constant(2, dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertEqual(self.evaluate(read), [[3]])
def _resource_apply_sparse_duplicate_indices(self, grad, handle, indices):
if isinstance(handle, embedding_variable_ops.EmbeddingVariable):
global_step = training_util.get_or_create_global_step()
return gen_ev_ops.ev_sparse_apply_gradient_descent(
handle.handle,
math_ops.cast(self._learning_rate_tensor,
grad.dtype.base_dtype),
grad,
indices,
global_step,
use_locking=self._use_locking)
else:
return resource_variable_ops.resource_scatter_add(
handle.handle, indices, -grad * self._learning_rate)
def _resource_apply_sparse(self, grad, var, indices):
momentum_buffer = self.get_slot(var, "momentum")
learning_rate = math_ops.cast(self._learning_rate_tensor, var.dtype.base_dtype)
momentum = math_ops.cast(self._momentum_tensor, var.dtype.base_dtype)
nu = math_ops.cast(self._nu_tensor, var.dtype.base_dtype)
momentum_op = training_ops.resource_sparse_apply_momentum(
var.handle,
momentum_buffer.handle,
nu * (1.0 - momentum) * learning_rate,
grad,
indices,
momentum,
use_locking=self._use_locking,
use_nesterov=False,
)
with ops.control_dependencies([momentum_op]):
delta = (nu - 1.0) * learning_rate * grad
gd_op = resource_variable_ops.resource_scatter_add(var.handle, indices, delta)
return control_flow_ops.group(momentum_op, gd_op)
def _resource_scatter_add(self, x, i, v):
with ops.control_dependencies(
[resource_variable_ops.resource_scatter_add(x.handle, i, v)]):
return x.value()
def _resource_scatter_add(self, x, i, v, _=None):
# last argument allows for one overflow argument, to have the same function
# signature as state_ops.scatter_add
with ops.control_dependencies(
[resource_variable_ops.resource_scatter_add(x.handle, i, v)]):
return x.value()
def _resource_apply_sparse_duplicate_indices(self, grad, handle, indices,
state):
lr = state.get_hyper("learning_rate", grad.dtype.base_dtype)
return resource_variable_ops.resource_scatter_add(
handle.handle, indices, -grad * lr)
def _resource_apply_sparse_duplicate_indices(self, grad, handle, indices):
return resource_variable_ops.resource_scatter_add(
handle.handle, indices, -grad * self._get_hyper("learning_rate"))
def _wrapWOAccu(accuGrads, grad, var, indices, apply_state):
return resource_variable_ops.resource_scatter_add(
var.handle, indices, grad * 0.0)
def _resource_scatter_add(self, x, i, v, _=None):
# last argument allows for one overflow argument, to have the same function
# signature as state_ops.scatter_add
with ops.control_dependencies(
[resource_variable_ops.resource_scatter_add(x.handle, i, v)]):
return x.value()
def _resource_apply_sparse_duplicate_indices(self, grad, handle, indices):
return resource_variable_ops.resource_scatter_add(
handle.handle, indices, -grad *
math_ops.cast(self._learning_rate_tensor, grad.dtype.base_dtype))
def _resource_scatter_add(x, i, v):
dependencies = [
resource_variable_ops.resource_scatter_add(x.handle, i, v)
]
with ops.control_dependencies(dependencies):
return x.value()
def _resource_apply_sparse_duplicate_indices(self, grad, handle, indices):
return resource_variable_ops.resource_scatter_add(
handle.handle, indices, -grad * self._learning_rate)
def _resource_scatter_add(self, x, i, v, _=None):
with ops.control_dependencies(
[resource_variable_ops.resource_scatter_add(x.handle, i, v)]):
return tf.convert_to_tensor(x)
def _resource_apply_sparse_duplicate_indices(self, grad, var, indices):
return resource_variable_ops.resource_scatter_add(
var.handle, indices, -grad * math_ops.cast(
self._get_hyper("learning_rate"), var.dtype.base_dtype))
def _resource_apply_sparse_duplicate_indices(
self, grad, handle, indices, state):
lr = state.get_hyper("learning_rate", grad.dtype.base_dtype)
return resource_variable_ops.resource_scatter_add(
handle.handle, indices, -grad * lr)
def _resource_apply_sparse(self, grad, handle, indices):
return resource_variable_ops.resource_scatter_add(
handle, indices, -grad * self._learning_rate)
