Base class for cross-device reduction and broadcasting algorithms.
tf.distribute.CrossDeviceOps()
Methods
batch_reduce
View source
batch_reduce(
reduce_op, value_destination_pairs
)
Reduce PerReplica objects in a batch.
Reduce each first element in value_destination_pairs to each second
element which indicates the destinations.
| Args |
|---|
reduce_op
|
Indicates how per_replica_value will be reduced. Accepted
values are tf.distribute.ReduceOp.SUM, tf.distribute.ReduceOp.MEAN.
|
value_destination_pairs
|
a list or a tuple of tuples of PerReplica objects
(or tensors with device set if there is one device) and destinations.
|
| Returns |
|---|
|
a list of Mirrored objects.
|
| Raises |
|---|
ValueError
|
if value_destination_pairs is not a list or a tuple of
tuples of PerReplica objects and destinations
|
batch_reduce_implementation
View source
batch_reduce_implementation(
reduce_op, value_destination_pairs
)
Implementation of reduce PerReplica objects in a batch.
Reduce each first element in value_destination_pairs to each second
element which indicates the destinations.
| Args |
|---|
reduce_op
|
Indicates how per_replica_value will be reduced. Accepted
values are tf.distribute.ReduceOp.SUM, tf.distribute.ReduceOp.MEAN.
|
value_destination_pairs
|
a list or a tuple of tuples of PerReplica objects
(or tensors with device set if there is one device) and destinations.
|
| Returns |
|---|
|
a list of Mirrored objects.
|
| Raises |
|---|
ValueError
|
if value_destination_pairs is not a list or a tuple of
tuples of PerReplica objects and destinations
|
broadcast
View source
broadcast(
tensor, destinations
)
Broadcast the tensor to destinations.
| Args |
|---|
tensor
|
the tensor to broadcast.
|
destinations
|
the broadcast destinations.
|
| Returns |
|---|
|
a Mirrored object.
|
broadcast_implementation
View source
broadcast_implementation(
tensor, destinations
)
Implementation of broadcast the tensor to destinations.
| Args |
|---|
tensor
|
the tensor to broadcast.
|
destinations
|
the broadcast destinations.
|
| Returns |
|---|
|
a Mirrored object.
|
reduce
View source
reduce(
reduce_op, per_replica_value, destinations
)
Reduce per_replica_value to destinations.
It runs the reduction operation defined by reduce_op and put the
result on destinations.
| Returns |
|---|
|
a Mirrored object.
|
| Raises |
|---|
ValueError
|
if per_replica_value can't be converted to a PerReplica
object.
|
reduce_implementation
View source
reduce_implementation(
reduce_op, per_replica_value, destinations
)
The implementation of reduce of per_replica_value to destinations.
It runs the reduction operation defined by reduce_op and put the
result on destinations.
| Returns |
|---|
|
a Mirrored object.
|
| Raises |
|---|
ValueError
|
if per_replica_value can't be converted to a PerReplica
object.
|
TensorFlow 1 version
View source on GitHub