80 lines
3.1 KiB
C
80 lines
3.1 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2017-2020 Arm Limited.
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: MIT
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
* of this software and associated documentation files (the "Software"), to
|
||
|
|
* deal in the Software without restriction, including without limitation the
|
||
|
|
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
||
|
|
* sell copies of the Software, and to permit persons to whom the Software is
|
||
|
|
* furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in all
|
||
|
|
* copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||
|
|
* SOFTWARE.
|
||
|
|
*/
|
||
|
|
#ifndef ARM_COMPUTE_GCSOFTMAXLAYER_H
|
||
|
|
#define ARM_COMPUTE_GCSOFTMAXLAYER_H
|
||
|
|
|
||
|
|
#include "arm_compute/core/GLES_COMPUTE/kernels/GCSoftmaxLayerKernel.h"
|
||
|
|
#include "arm_compute/runtime/GLES_COMPUTE/GCTensor.h"
|
||
|
|
#include "arm_compute/runtime/IFunction.h"
|
||
|
|
#include "arm_compute/runtime/MemoryGroup.h"
|
||
|
|
|
||
|
|
namespace arm_compute
|
||
|
|
{
|
||
|
|
class IGCTensor;
|
||
|
|
|
||
|
|
/** Basic function to compute a SoftmaxLayer.
|
||
|
|
*
|
||
|
|
* Softmax is calculated by :
|
||
|
|
* @f[ out = exp(x - max(x)) / sum(exp(x - max(x))) @f]
|
||
|
|
*
|
||
|
|
* This function runs the following kernels:
|
||
|
|
* -# @ref GCLogits1DMaxKernel
|
||
|
|
* -# @ref GCLogits1DShiftExpSumKernel
|
||
|
|
* -# @ref GCLogits1DNormKernel
|
||
|
|
*
|
||
|
|
* @deprecated This function is deprecated and is intended to be removed in 21.05 release
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
class GCSoftmaxLayer : public IFunction
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
/** Constructor */
|
||
|
|
GCSoftmaxLayer(std::shared_ptr<IMemoryManager> memory_manager = nullptr);
|
||
|
|
/** Set the input and output tensors.
|
||
|
|
*
|
||
|
|
* @param[in] input Source tensor. Data types supported: F16/F32
|
||
|
|
* @param[out] output Destination tensor. Data types supported: same as @p input
|
||
|
|
* @param[in] beta (Optional) A scaling factor for the exponent. Only beta = 1 is supported
|
||
|
|
* @param[in] axis (Optional) The dimension in which to apply the function. E.g. for input of shape 4x5x6 and
|
||
|
|
* axis=1, softmax will be applied to 4x6=24 vectors of size 5. Defaults to 0
|
||
|
|
*
|
||
|
|
* @note The value of @p axis must be always 0 for GLES
|
||
|
|
*/
|
||
|
|
void configure(const IGCTensor *input, IGCTensor *output, float beta = 1.0f, int32_t axis = 0);
|
||
|
|
|
||
|
|
// Inherited methods overridden:
|
||
|
|
void run() override;
|
||
|
|
|
||
|
|
private:
|
||
|
|
MemoryGroup _memory_group;
|
||
|
|
GCLogits1DMaxKernel _max_kernel;
|
||
|
|
GCLogits1DShiftExpSumKernel _shift_exp_sum_kernel;
|
||
|
|
GCLogits1DNormKernel _norm_kernel;
|
||
|
|
GCTensor _max;
|
||
|
|
GCTensor _sum;
|
||
|
|
GCTensor _tmp;
|
||
|
|
};
|
||
|
|
} // namespace arm_compute
|
||
|
|
#endif /* ARM_COMPUTE_GCSOFTMAXLAYER_H */
|