org.tensorflow.op.core

Class CollectivePermute<T>

java.lang.Object

org.tensorflow.op.PrimitiveOp

org.tensorflow.op.core.CollectivePermute<T>

Type Parameters:

T - data type for output() output

All Implemented Interfaces:

Op, Operand<T>

public final class CollectivePermute<T>
extends PrimitiveOp
implements Operand<T>

An Op to permute tensors across replicated TPU instances.

Each instance supplies its own input.

For example, suppose there are 4 TPU instances: `[A, B, C, D]`. Passing source_target_pairs=`[[0,1],[1,2],[2,3],[3,0]]` gets the outputs: `[D, A, B, C]`.

Field Summary

Fields inherited from class org.tensorflow.op.PrimitiveOp

operation

Method Summary

Modifier and Type	Method and Description
Output<T>	asOutput() Returns the symbolic handle of a tensor.
static <T> CollectivePermute<T>	create(Scope scope, Operand<T> input, Operand<Integer> sourceTargetPairs) Factory method to create a class wrapping a new CollectivePermute operation.
Output<T>	output() The permuted input.

Methods inherited from class org.tensorflow.op.PrimitiveOp

equals, hashCode, op, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

create

public static <T> CollectivePermute<T> create(Scope scope,
                                              Operand<T> input,
                                              Operand<Integer> sourceTargetPairs)

Factory method to create a class wrapping a new CollectivePermute operation.

Parameters:

scope - current scope

input - The local input to be permuted. Currently only supports float and bfloat16.

sourceTargetPairs - A tensor with shape [num_pairs, 2].

Returns:

a new instance of CollectivePermute

output

public Output<T> output()

The permuted input.

asOutput

public Output<T> asOutput()

Description copied from interface: Operand

Returns the symbolic handle of a tensor.

Inputs to TensorFlow operations are outputs of another TensorFlow operation. This method is used to obtain a symbolic handle that represents the computation of the input.

Specified by:

asOutput in interface Operand<T>

See Also:

OperationBuilder.addInput(Output)