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Diffstat (limited to 'src/core/NEON/kernels/NESoftmaxLayerKernel.h')
| -rw-r--r-- | src/core/NEON/kernels/NESoftmaxLayerKernel.h | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/NESoftmaxLayerKernel.h b/src/core/NEON/kernels/NESoftmaxLayerKernel.h new file mode 100644 index 0000000000..adc2e57258 --- /dev/null +++ b/src/core/NEON/kernels/NESoftmaxLayerKernel.h @@ -0,0 +1,149 @@ +/* + * 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_NESOFTMAXLAYERKERNEL_H +#define ARM_COMPUTE_NESOFTMAXLAYERKERNEL_H + +#include "src/core/NEON/INEKernel.h" +#include "src/core/NEON/INESimpleKernel.h" + +namespace arm_compute +{ +class ITensor; + +/** Interface for the identifying the max value of 1D Logits */ +class NELogits1DMaxKernel : public INESimpleKernel +{ +public: + const char *name() const override + { + return "NELogits1DMaxKernel"; + } + /** Default constructor */ + NELogits1DMaxKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NELogits1DMaxKernel(const NELogits1DMaxKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NELogits1DMaxKernel &operator=(const NELogits1DMaxKernel &) = delete; + /** Allow instances of this class to be moved */ + NELogits1DMaxKernel(NELogits1DMaxKernel &&) = default; + /** Allow instances of this class to be moved */ + NELogits1DMaxKernel &operator=(NELogits1DMaxKernel &&) = default; + /** Default destructor */ + ~NELogits1DMaxKernel() = default; + /** Set the input and output tensors. + * + * @param[in] input Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. + * @param[out] output Destination tensor. Data types supported: same as @p input + */ + void configure(const ITensor *input, ITensor *output); + /** Static function to check if given info will lead to a valid configuration of @ref NELogits1DMaxKernel + * + * @param[in] input Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. + * @param[in] output Destination tensor. Data types supported: same as @p input + * + * @return a status + */ + static Status validate(const ITensorInfo *input, const ITensorInfo *output); + + // Inherited methods overridden: + void run(const Window &window, const ThreadInfo &info) override; + BorderSize border_size() const override; + +private: + using Logits1DMaxFunction = void(const ITensor &in, ITensor &out, const Window &window); + +private: + Logits1DMaxFunction *_func; + BorderSize _border_size; +}; + +/** Interface for softmax computation for QASYMM8 with pre-computed max. */ +template <bool IS_LOG = false> +class NELogits1DSoftmaxKernel : public INEKernel +{ +public: + const char *name() const override + { + if(IS_LOG) + { + return "NELogits1DSoftmaxKernel"; + } + else + { + return "NELogits1DLogSoftmaxKernel"; + } + } + /** Default constructor */ + NELogits1DSoftmaxKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NELogits1DSoftmaxKernel(const NELogits1DSoftmaxKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NELogits1DSoftmaxKernel &operator=(const NELogits1DSoftmaxKernel &) = delete; + /** Allow instances of this class to be moved */ + NELogits1DSoftmaxKernel(NELogits1DSoftmaxKernel &&) = default; + /** Allow instances of this class to be moved */ + NELogits1DSoftmaxKernel &operator=(NELogits1DSoftmaxKernel &&) = default; + /** Default destructor */ + ~NELogits1DSoftmaxKernel() = default; + /** Set the input and output tensors. + * + * @param[in] input Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. + * @param[in] max Max values tensor. Same shape as input with dimension 0 set to 1. + * Data types supported: same as @p input. + * @param[out] output Destination tensor. Data types supported: same as @p input. + * @param[in] beta A scaling factor for the exponent. + * + * @param tmp Auxiliary tensor. Must be type F32 and same shape as the input. + */ + void configure(const ITensor *input, const ITensor *max, ITensor *output, const float beta, ITensor *tmp); + /** Static function to check if given info will lead to a valid configuration of @ref NELogits1DSoftmaxKernel + * + * @param[in] input Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/F16/F32. + * @param[in] max Max values tensor info. Same shape as input with dimension 0 set to 1. + * Data types supported: same as @p input. + * @param[in] output Destination tensor info. Data types supported: same as @p input. + * @param[in] beta A scaling factor for the exponent. + * @param[in] tmp Tensor info of auxiliary. Must be type F32 and same shape as the input. + * + * @return a status + */ + static Status validate(const ITensorInfo *input, const ITensorInfo *max, + const ITensorInfo *output, const float beta, const ITensorInfo *tmp); + + // Inherited methods overridden: + void run(const Window &window, const ThreadInfo &info) override; + +private: + using LogitsSoftmaxFunction = void(const ITensor &in, const ITensor &max, void *const tmp, ITensor &out, const float beta, + const Window &window); + + LogitsSoftmaxFunction *_func; + const ITensor *_input; + const ITensor *_max; + ITensor *_output; + float _beta; + ITensor *_tmp; //Temporary. Used internally +}; +} // namespace arm_compute +#endif /*ARM_COMPUTE_NESOFTMAXLAYERKERNEL_H */ |