From b7b31538eb9137e4d3e8de6d381dcbe9fc58df94 Mon Sep 17 00:00:00 2001 From: Michalis Spyrou Date: Thu, 23 Nov 2017 12:10:21 +0000 Subject: COMPMID-464 Implement Depthwise separable convolution on NEON Change-Id: Iccd686be18381e96bcf09b14c7017c6dda0f38d8 Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/109824 Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com Reviewed-by: Pablo Tello --- src/core/NEON/kernels/NEDepthwiseIm2ColKernel.cpp | 138 ++++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 src/core/NEON/kernels/NEDepthwiseIm2ColKernel.cpp (limited to 'src/core/NEON/kernels/NEDepthwiseIm2ColKernel.cpp') diff --git a/src/core/NEON/kernels/NEDepthwiseIm2ColKernel.cpp b/src/core/NEON/kernels/NEDepthwiseIm2ColKernel.cpp new file mode 100644 index 0000000000..2ceb39d217 --- /dev/null +++ b/src/core/NEON/kernels/NEDepthwiseIm2ColKernel.cpp @@ -0,0 +1,138 @@ +/* + * 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/NEDepthwiseIm2ColKernel.h" + +#include "arm_compute/core/AccessWindowTranspose.h" +#include "arm_compute/core/Coordinates.h" +#include "arm_compute/core/Error.h" +#include "arm_compute/core/Helpers.h" +#include "arm_compute/core/ITensor.h" +#include "arm_compute/core/NEON/INEKernel.h" +#include "arm_compute/core/TensorInfo.h" +#include "arm_compute/core/TensorShape.h" +#include "arm_compute/core/Types.h" +#include "arm_compute/core/Validate.h" +#include "arm_compute/core/Window.h" + +using namespace arm_compute; + +NEDepthwiseIm2ColKernel::NEDepthwiseIm2ColKernel() + : _input(nullptr), _output(nullptr), _kernel_dims(), _conv_info(), _has_bias() +{ +} + +void NEDepthwiseIm2ColKernel::configure(const ITensor *input, ITensor *output, const Size2D &kernel_dims, const PadStrideInfo &conv_info, bool has_bias) +{ + ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::F16, DataType::F32); + ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input, output); + ARM_COMPUTE_ERROR_ON_MISMATCHING_FIXED_POINT(input, output); + ARM_COMPUTE_ERROR_ON(input->info()->dimension(2) != output->info()->dimension(2)); + ARM_COMPUTE_ERROR_ON(output->info()->dimension(0) != (kernel_dims.width * kernel_dims.height + ((has_bias) ? 1 : 0))); + + _input = input; + _output = output; + _kernel_dims = kernel_dims; + _conv_info = conv_info; + _has_bias = has_bias; + + // Configure kernel window + Window win = calculate_max_window(*input->info(), Steps()); + + // The NEDepthwiseIm2ColKernel doesn't need padding so update_window_and_padding() can be skipped + output->info()->set_valid_region(ValidRegion(Coordinates(), output->info()->tensor_shape())); + + INEKernel::configure(win); +} + +void NEDepthwiseIm2ColKernel::run(const Window &window, const ThreadInfo &info) +{ + ARM_COMPUTE_UNUSED(info); + ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); + + //const int kernel_depth = _input->info()->dimension(2); + const int input_w = _input->info()->dimension(0); + const int input_h = _input->info()->dimension(1); + const int input_stride_x = _input->info()->strides_in_bytes().x(); + const int input_stride_y = _input->info()->strides_in_bytes().y(); + const int input_stride_z = _input->info()->strides_in_bytes().z(); + const int stride_x = _conv_info.stride().first; + const int stride_y = _conv_info.stride().second; + + const int pad_left = _conv_info.pad_left(); + const int pad_right = _conv_info.pad_right(); + const int pad_top = _conv_info.pad_top(); + + Window window_in(window); + // The first three dimensions of the input are increased by the inner loops + window_in.set(Window::DimX, Window::Dimension(0, 0, 0)); + window_in.set(Window::DimY, Window::Dimension(0, 0, 0)); + window_in.set(Window::DimZ, Window::Dimension(0, 0, 0)); + + // Setup output window + Window window_out(window); + window_out.set(Window::DimX, Window::Dimension(0, _output->info()->dimension(0), _output->info()->dimension(0))); + window_out.set(Window::DimY, Window::Dimension(0, _output->info()->dimension(1), 1)); + window_out.set(Window::DimZ, Window::Dimension(0, _output->info()->dimension(2), 1)); + + Iterator in(_input, window_in); + Iterator out(_output, window_out); + + const int full_length = input_w + pad_left + pad_right; + const int max_initial_x = stride_x * (((full_length - _kernel_dims.width) / stride_x) + 1); + + execute_window_loop(window_out, [&](const Coordinates & id) + { + const int src_pixel_linear = id.y() * stride_x; + + const int src_x = -pad_left + src_pixel_linear % max_initial_x; + const int src_y = -pad_top + src_pixel_linear / max_initial_x * stride_y; + + // Get pointers + const uint8_t *const input_ptr = in.ptr() + id.z() * input_stride_z; + auto output_ptr = reinterpret_cast(out.ptr()); + const int height = src_y + _kernel_dims.height; + const int width = src_x + _kernel_dims.width; + + for(int y = src_y; y < height; ++y) + { + for(int x = src_x; x < width; ++x, ++output_ptr) + { + if(x < 0 || x >= input_w || y < 0 || y >= input_h) + { + *output_ptr = 0; + } + else + { + *output_ptr = *(reinterpret_cast(input_ptr + x * input_stride_x + y * input_stride_y)); + } + } + } + + if(_has_bias) + { + *output_ptr = static_cast(1); + } + }, + in, out); +} -- cgit v1.2.1