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author | Anthony Barbier <anthony.barbier@arm.com> | 2017-09-04 18:44:23 +0100 |
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committer | Anthony Barbier <anthony.barbier@arm.com> | 2018-09-17 13:03:09 +0100 |
commit | 6ff3b19ee6120edf015fad8caab2991faa3070af (patch) | |
tree | a7a6dcd16dfd56d79fa1b56a313caeebcc939b68 /src/core/NEON/kernels/NENormalizationLayerKernel.cpp | |
download | ComputeLibrary-6ff3b19ee6120edf015fad8caab2991faa3070af.tar.gz |
COMPMID-344 Updated doxygen
Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae
Diffstat (limited to 'src/core/NEON/kernels/NENormalizationLayerKernel.cpp')
-rw-r--r-- | src/core/NEON/kernels/NENormalizationLayerKernel.cpp | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/src/core/NEON/kernels/NENormalizationLayerKernel.cpp b/src/core/NEON/kernels/NENormalizationLayerKernel.cpp new file mode 100644 index 0000000000..a971dc8d97 --- /dev/null +++ b/src/core/NEON/kernels/NENormalizationLayerKernel.cpp @@ -0,0 +1,218 @@ +/* + * Copyright (c) 2017 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. + */ +#include "arm_compute/core/NEON/kernels/NENormalizationLayerKernel.h" + +#include "arm_compute/core/Error.h" +#include "arm_compute/core/Helpers.h" +#include "arm_compute/core/NEON/NEFixedPoint.h" +#include "arm_compute/core/NEON/NEMath.h" +#include "arm_compute/core/TensorInfo.h" +#include "arm_compute/core/Utils.h" +#include "arm_compute/core/Validate.h" +#include "arm_compute/core/Window.h" + +using namespace arm_compute; + +NENormalizationLayerKernel::NENormalizationLayerKernel() + : _func(nullptr), _input(nullptr), _input_squared(nullptr), _output(nullptr), _norm_info(NormType::IN_MAP_1D), _border_size() +{ +} + +BorderSize NENormalizationLayerKernel::border_size() const +{ + return _border_size; +} + +void NENormalizationLayerKernel::configure(const ITensor *input, const ITensor *input_squared, ITensor *output, NormalizationLayerInfo norm_info) +{ + ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::F32, DataType::QS8); + ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::F32, DataType::QS8); + ARM_COMPUTE_ERROR_ON_MISMATCHING_SHAPES(input, input_squared); + ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input, input_squared, output); + ARM_COMPUTE_ERROR_ON_MISMATCHING_FIXED_POINT(input, input_squared, output); + ARM_COMPUTE_ERROR_ON_MSG(!(norm_info.norm_size() % 2), "Normalization size should be odd"); + ARM_COMPUTE_ERROR_ON_VALUE_NOT_REPRESENTABLE_IN_FIXED_POINT(norm_info.beta(), input); + ARM_COMPUTE_ERROR_ON_VALUE_NOT_REPRESENTABLE_IN_FIXED_POINT(norm_info.kappa(), input); + ARM_COMPUTE_ERROR_ON_VALUE_NOT_REPRESENTABLE_IN_FIXED_POINT(norm_info.scale_coeff(), input); + + const unsigned int border_width = (norm_info.type() == NormType::CROSS_MAP) ? 0 : std::min(norm_info.norm_size() / 2, 3U); + + _input = input; + _input_squared = input_squared; + _output = output; + _norm_info = norm_info; + _border_size = BorderSize(0, border_width); + + const bool is_dt_f32 = _input->info()->data_type() == DataType::F32; + + switch(norm_info.type()) + { + case NormType::IN_MAP_1D: + _func = (is_dt_f32) ? &NENormalizationLayerKernel::normalize<0, false> : &NENormalizationLayerKernel::normalize_fixed_point<0, false>; + break; + case NormType::IN_MAP_2D: + // Normalize over X and Y + _func = (is_dt_f32) ? &NENormalizationLayerKernel::normalize<0, true> : &NENormalizationLayerKernel::normalize_fixed_point<0, true>; + break; + case NormType::CROSS_MAP: + _func = (is_dt_f32) ? &NENormalizationLayerKernel::normalize<2, false> : &NENormalizationLayerKernel::normalize_fixed_point<2, false>; + break; + default: + ARM_COMPUTE_ERROR("NOT SUPPORTED!"); + } + + const unsigned int num_elems_processed_per_iteration = (is_dt_f32) ? 4 : 16; + const unsigned int num_elems_read_per_iteration = num_elems_processed_per_iteration + 2 * (norm_info.norm_size() / 2); + const unsigned int num_rows = (norm_info.type() == NormType::IN_MAP_2D) ? norm_info.norm_size() : 1; + + // Configure window + Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration)); + + AccessWindowRectangle input_access(input->info(), -_border_size.left, 0, num_elems_read_per_iteration, num_rows); + AccessWindowRectangle input_squared_access(input_squared->info(), -_border_size.left, 0, num_elems_read_per_iteration, num_rows); + AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration); + + update_window_and_padding(win, input_access, input_squared_access, output_access); + + output_access.set_valid_region(win, input->info()->valid_region()); + + INEKernel::configure(win); +} + +template <unsigned int dim, bool do_2D_norm> +void NENormalizationLayerKernel::normalize(const Window &window) +{ + Iterator input(_input, window); + Iterator input_squared(_input_squared, window); + Iterator output(_output, window); + + const int dim_y = 1; + const int radius = _norm_info.norm_size() / 2; + const int total_size = _input->info()->dimension(dim) - 1; + const int input_squared_stride = _input_squared->info()->strides_in_bytes()[dim]; + // We account padding across X only and we iterate over rows + const int min_left = (dim == 2) ? 0 : -static_cast<int>(border_size().left); + const int max_right = (dim == 2) ? total_size : total_size + border_size().left; + const int min_top = 0; + const int max_bottom = _input->info()->dimension(dim_y) - 1; + + const float32x4_t coeff_vec = vdupq_n_f32(_norm_info.scale_coeff()); + const float32x4_t beta_vec = vdupq_n_f32(_norm_info.beta()); + const float32x4_t kappa_vec = vdupq_n_f32(_norm_info.kappa()); + + execute_window_loop(window, [&](const Coordinates & id) + { + // Get range to normalize + const int current_row = do_2D_norm ? id[dim_y] : 0; + const int current_slice = id[dim]; + const int first_row = do_2D_norm ? std::max(current_row - radius, min_top) : 0; + const int last_row = do_2D_norm ? std::min(current_row + radius, max_bottom) : 0; + const int first_slice = std::max(current_slice - radius, min_left); + const int last_slice = std::min(current_slice + radius, max_right); + + // Accumulate 2D In-Map values + float32x4_t accu = vdupq_n_f32(0.f); + for(int j = first_row; j <= last_row; j++) + { + // Compute row displacement + const int row = (j - current_row) * _input_squared->info()->strides_in_bytes()[dim_y]; + const uint8_t *const input_squared_ptr = input_squared.ptr() + row - (current_slice * input_squared_stride); + for(int i = first_slice; i <= last_slice; ++i) + { + accu = vaddq_f32(accu, vld1q_f32(reinterpret_cast<const float *>(input_squared_ptr + i * input_squared_stride))); + } + } + + // Normalize + const float32x4_t normalized = vpowq_f32(vmlaq_f32(kappa_vec, coeff_vec, accu), beta_vec); + const float32x4_t normalized_pixel = vmulq_f32(vld1q_f32(reinterpret_cast<const float *>(input.ptr())), vinvq_f32(normalized)); + vst1q_f32(reinterpret_cast<float *>(output.ptr()), normalized_pixel); + }, + input, input_squared, output); +} + +template <unsigned int dim, bool do_2D_norm> +void NENormalizationLayerKernel::normalize_fixed_point(const Window &window) +{ + Iterator input(_input, window); + Iterator input_squared(_input_squared, window); + Iterator output(_output, window); + + const int dim_y = 1; + const int radius = _norm_info.norm_size() / 2; + const int total_size = _input->info()->dimension(dim) - 1; + const int input_squared_stride = _input_squared->info()->strides_in_bytes()[dim]; + // We account padding across X only and we iterate over rows + const int min_left = (dim == 2) ? 0 : -static_cast<int>(border_size().left); + const int max_right = (dim == 2) ? total_size : total_size + border_size().left; + const int min_top = 0; + const int max_bottom = _input->info()->dimension(dim_y) - 1; + + const int fixed_point_position = _input->info()->fixed_point_position(); + + const qint8x16_t coeff_vec = vdupq_n_qs8_f32(_norm_info.scale_coeff(), fixed_point_position); + const qint8x16_t beta_vec = vdupq_n_qs8_f32(_norm_info.beta(), fixed_point_position); + const qint8x16_t kappa_vec = vdupq_n_qs8_f32(_norm_info.kappa(), fixed_point_position); + + execute_window_loop(window, [&](const Coordinates & id) + { + // Get range to normalize + const int current_row = do_2D_norm ? id[dim_y] : 0; + const int current_slice = id[dim]; + const int first_row = do_2D_norm ? std::max(current_row - radius, min_top) : 0; + const int last_row = do_2D_norm ? std::min(current_row + radius, max_bottom) : 0; + const int first_slice = std::max(current_slice - radius, min_left); + const int last_slice = std::min(current_slice + radius, max_right); + + // Accumulate 2D In-Map values + qint8x16_t accu = vdupq_n_qs8(0); + for(int j = first_row; j <= last_row; ++j) + { + // Compute row displacement + const int row = (j - current_row) * _input_squared->info()->strides_in_bytes()[dim_y]; + const uint8_t *const input_squared_ptr = input_squared.ptr() + row - (current_slice * input_squared_stride); + for(int i = first_slice; i <= last_slice; ++i) + { + accu = vqaddq_qs8(accu, vld1q_qs8(reinterpret_cast<const qint8_t *>(input_squared_ptr + i * input_squared_stride))); + } + } + + // Normalize + const qint8x16_t accu_scale = vqmlaq_qs8(kappa_vec, coeff_vec, accu, fixed_point_position); + const qint8x16_t normalized = vqpowq_qs8(accu_scale, beta_vec, fixed_point_position); + const qint8x16_t normalized_pixel = vdivq_qs8(vld1q_qs8(reinterpret_cast<const qint8_t *>(input.ptr())), normalized, fixed_point_position); + vst1q_qs8(reinterpret_cast<qint8_t *>(output.ptr()), normalized_pixel); + }, + input, input_squared, output); +} + +void NENormalizationLayerKernel::run(const Window &window) +{ + ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); + ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INEKernel::window(), window); + ARM_COMPUTE_ERROR_ON(_func == nullptr); + + // Run function + (this->*_func)(window); +} |