From ebcebf1dee7f8314976b1e0cabd62b4cf893d765 Mon Sep 17 00:00:00 2001 From: Michalis Spyrou Date: Wed, 21 Oct 2020 00:04:14 +0100 Subject: COMPMID-3638: Move NEON kernels Signed-off-by: Michalis Spyrou Change-Id: Ieed3e4bc8be7fef80c90c5094599b477a56fc473 Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4285 Comments-Addressed: Arm Jenkins Reviewed-by: Georgios Pinitas Tested-by: Arm Jenkins --- .../NEON/kernels/NEMeanStdDevNormalizationKernel.h | 98 ++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 src/core/NEON/kernels/NEMeanStdDevNormalizationKernel.h (limited to 'src/core/NEON/kernels/NEMeanStdDevNormalizationKernel.h') diff --git a/src/core/NEON/kernels/NEMeanStdDevNormalizationKernel.h b/src/core/NEON/kernels/NEMeanStdDevNormalizationKernel.h new file mode 100644 index 0000000000..59d073ada5 --- /dev/null +++ b/src/core/NEON/kernels/NEMeanStdDevNormalizationKernel.h @@ -0,0 +1,98 @@ +/* + * Copyright (c) 2019-2020 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_NEMEANSTDDEVNORMALIZATIONKERNEL_H +#define ARM_COMPUTE_NEMEANSTDDEVNORMALIZATIONKERNEL_H + +#include "src/core/NEON/INEKernel.h" + +#ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC +#include +#endif /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */ + +namespace arm_compute +{ +class ITensor; + +/** Interface for the kernel to normalize the input 2D tensor across the first dimension with respect to mean and standard deviation of the same dimension. */ +class NEMeanStdDevNormalizationKernel : public INEKernel +{ +public: + const char *name() const override + { + return "NEMeanStdDevNormalizationKernel"; + } + /** Default constructor */ + NEMeanStdDevNormalizationKernel(); + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEMeanStdDevNormalizationKernel(const NEMeanStdDevNormalizationKernel &) = delete; + /** Prevent instances of this class from being copied (As this class contains pointers) */ + NEMeanStdDevNormalizationKernel &operator=(const NEMeanStdDevNormalizationKernel &) = delete; + /** Allow instances of this class to be moved */ + NEMeanStdDevNormalizationKernel(NEMeanStdDevNormalizationKernel &&) = default; + /** Allow instances of this class to be moved */ + NEMeanStdDevNormalizationKernel &operator=(NEMeanStdDevNormalizationKernel &&) = default; + /** Default destructor */ + ~NEMeanStdDevNormalizationKernel() = default; + /** Initialise the kernel's input and outputs. + * + * @note If the output tensor is a nullptr, the normalization will be performed in-place. + * + * @param[in, out] input Source tensor with 2 dimensions. In case of @p output tensor = nullptr, + * this tensor will store the result of the normalization. Data types supported: F16/F32. + * @param[out] output (Optional) Destination tensor. It can be nullptr in case of in-place computation. Data type supported: same as @p input + * @param[in] epsilon (Optional) Small float to avoid division by zero in case of zero standard deviation. Defaults to 1e-8. + */ + void configure(ITensor *input, ITensor *output = nullptr, float epsilon = 1e-8f); + /** Static function to check if given info will lead to a valid configuration of @ref NEMeanStdDevNormalizationKernel + * + * @param[in] input Source tensor info with 2 dimensions. In case of @p output tensor info = nullptr, + * this tensor will store the result of the normalization. Data types supported: F16/F32. + * @param[in] output (Optional) Destination tensor info. It can be nullptr in case of in-place computation. Data type supported: same as @p input + * @param[in] epsilon (Optional) Small float to avoid division by zero in case of zero standard deviation. Defaults to 1e-8. + * + * @return a status + */ + static Status validate(const ITensorInfo *input, const ITensorInfo *output = nullptr, float epsilon = 1e-8f); + + // Inherited methods overridden: + void run(const Window &window, const ThreadInfo &info) override; + +private: + /** Normalizes the input with respect to mean and standard deviation. + * + * @param[in] window Region on which to execute the kernel. + */ + template + void mean_stddev_normalization(const Window &window); + + ITensor *_input; + ITensor *_output; + float _epsilon; + + using MeanStdDevNormFunction = void (NEMeanStdDevNormalizationKernel::*)(const Window &window); + + MeanStdDevNormFunction _func; +}; +} // namespace arm_compute +#endif /* ARM_COMPUTE_NEMEANSTDDEVNORMALIZATIONKERNEL_H */ -- cgit v1.2.1