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/*
* Copyright (c) 2019 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_CPPTOPKVERNEL_H__
#define __ARM_COMPUTE_CPPTOPKVERNEL_H__
#include "arm_compute/core/CPP/ICPPKernel.h"
namespace arm_compute
{
class ITensor;
/** CPP kernel to perform tensor TopKV operation. */
class CPPTopKVKernel : public ICPPKernel
{
public:
const char *name() const override
{
return "CPPTopKVKernel";
}
/** Default constructor */
CPPTopKVKernel();
/** Prevent instances of this class from being copied (As this class contains pointers) */
CPPTopKVKernel(const CPPTopKVKernel &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
CPPTopKVKernel &operator=(const CPPTopKVKernel &) = delete;
/** Allow instances of this class to be moved */
CPPTopKVKernel(CPPTopKVKernel &&) = default;
/** Allow instances of this class to be moved */
CPPTopKVKernel &operator=(CPPTopKVKernel &&) = default;
/** Default destructor */
~CPPTopKVKernel() = default;
/** Set the input and output of the kernel.
*
* @param[in] predictions A batch_size x classes tensor. Data types supported: F16/S32/F32/QASYMM8
* @param[in] targets A batch_size 1D tensor of class ids. Data types supported: S32
* @param[out] output Computed precision at @p k as a bool 1D tensor. Data types supported: U8
* @param[in] k Number of top elements to look at for computing precision.
*/
void configure(const ITensor *predictions, const ITensor *targets, ITensor *output, const unsigned int k);
/** Static function to check if given info will lead to a valid configuration of @ref CPPTopKVKernel
*
* @param[in] predictions A batch_size x classes tensor info. Data types supported: F16/S32/F32/QASYMM8
* @param[in] targets A batch_size 1D tensor info of class ids. Data types supported: S32
* @param[in] output Computed precision at @p k as a bool 1D tensor info. Data types supported: U8
* @param[in] k Number of top elements to look at for computing precision.
*
* @return a status
*/
static Status validate(const ITensorInfo *predictions, const ITensorInfo *targets, ITensorInfo *output, const unsigned int k);
// Inherited methods overridden:
void run(const Window &window, const ThreadInfo &info) override;
bool is_parallelisable() const override;
private:
/** Template function to run the topKV operation. */
template <typename T>
void run_topkv();
const ITensor *_predictions;
const ITensor *_targets;
ITensor *_output;
unsigned int _k;
unsigned int _batch_size;
unsigned int _num_classes;
};
} // namespace arm_compute
#endif /*__ARM_COMPUTE_CPPTOPKVKERNEL_H__ */
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