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]`.
Public Methods
Output <T> |
asOutput
()
Returns the symbolic handle of a tensor.
|
static <T> CollectivePermute <T> | |
Output <T> |
output
()
The permuted input.
|
Inherited Methods
Public Methods
public Output <T> asOutput ()
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.
public static 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