Developer Guide

Contents

Batch Processing

Layer Input

The backward softmax layer accepts the input described below. Pass the Input ID as a parameter to the methods that provide input for your algorithm. For more details, see Algorithms .
Input ID
Input
inputGradient
Pointer to tensor
G
of size
n
1
x ... x
n
p
that stores the input gradient computed on the preceding layer. This input can be an object of any class derived from
Tensor
.
inputFromForward
Collection of input data needed for the backward softmax layer. The collection may contain objects of any class derived from
Tensor
.
Element ID
Element
auxValue
Pointer to tensor
Y
of size
n
1
x
n
2
x ... x
n
p
that stores the result of the forward softmax layer. This input can be an object of any class derived from
Tensor
.

Layer Parameters

For common parameters of neural network layers, see Common Parameters .
In addition to the common parameters, the backward softmax layer has the following parameters:
Parameter
Default Value
Description
algorithmFPType
float
The floating-point type that the algorithm uses for intermediate computations. Can be
float
or
double
.
method
defaultDense
Performance-oriented computation method, the only method supported by the layer.
dimension
1
Index of the dimension of type
size_t
to calculate softmax backpropagation.

Layer Output

The backward softmax layer calculates the result described below. Pass the Result ID as a parameter to the methods that access the results of your algorithm. For more details, see Algorithms .
Result ID
Result
gradient
Pointer to tensor
Z
of size
n
1
x
n
2
x ... x
n
p
that stores the result of the backward softmax layer. This input can be an object of any class derived from
Tensor
.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804