Maps a function on the list of tensors unpacked from arguments on dimension 0.
tf.raw_ops.MapDefun( arguments, captured_inputs, output_types, output_shapes, f, max_intra_op_parallelism=1, name=None )
The function given by f
is assumed to be stateless, and is executed concurrently on all the slices; up to batch_size (i.e. the size of the 0th dimension of each argument) functions will be scheduled at once.
The max_intra_op_parallelism
attr, which defaults to 1, can be used to limit the intra op parallelism. To limit inter-op parallelism, a user can set a private threadpool on the dataset using tf.data.Options
's ThreadingOptions
.
Note that this op is not exposed to users directly, but is invoked in tf.data rewrites.
Args | |
---|---|
arguments | A list of Tensor objects. A list of tensors whose types are Targuments , corresponding to the inputs the function should be mapped over. |
captured_inputs | A list of Tensor objects. A list of tensors whose types are Tcaptured , corresponding to the captured inputs of the defun. |
output_types | A list of tf.DTypes that has length >= 1 . A list of types. |
output_shapes | A list of shapes (each a tf.TensorShape or list of ints ) that has length >= 1 . A list of shapes. |
f | A function decorated with @Defun. |
max_intra_op_parallelism | An optional int . Defaults to 1 . |
name | A name for the operation (optional). |
Returns | |
---|---|
A list of Tensor objects of type output_types . |
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Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r2.4/api_docs/python/tf/raw_ops/MapDefun