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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.
*/
#include "depthwise_dilated.hpp"
#include "utils.hpp"
#define MEMBERFN(TOUT) \
template <unsigned int OutputTileRows, unsigned int OutputTileColumns, \
unsigned int KernelRows, unsigned int KernelColumns, \
unsigned int StrideRows, unsigned int StrideColumns, typename TIn, \
typename TBias, typename TOut> \
TOUT DilatedDepthwiseConvolution<OutputTileRows, OutputTileColumns, \
KernelRows, KernelColumns, StrideRows, \
StrideColumns, TIn, TBias, TOut>
namespace depthwise {
MEMBERFN()
::DilatedDepthwiseConvolution(const int n_batches, const int n_input_rows,
const int n_input_cols, const int n_channels,
const int dilation_factor,
nck::ActivationFunction activation,
const unsigned int padding_top,
const unsigned int padding_left,
const unsigned int padding_bottom,
const unsigned int padding_right)
: DilatedDepthwiseConvolution(
n_batches, n_input_rows, n_input_cols, n_channels, dilation_factor,
DilatedDepthwiseConvolution::get_output_size(
n_input_rows, padding_top, padding_bottom, dilation_factor),
DilatedDepthwiseConvolution::get_output_size(
n_input_cols, padding_left, padding_right, dilation_factor),
activation, padding_top, padding_left, padding_bottom,
padding_right) {}
MEMBERFN()
::DilatedDepthwiseConvolution(const int n_batches, const int n_input_rows,
const int n_input_cols, const int n_channels,
const int dilation_factor,
const int n_output_rows, const int n_output_cols,
nck::ActivationFunction activation,
const unsigned int padding_top,
const unsigned int padding_left,
const unsigned int, // padding_bottom
const unsigned int // padding_right
)
: DilatedDepthwiseConvolution(
n_batches, n_input_rows, n_input_cols, n_channels, dilation_factor,
n_output_rows, n_output_cols, activation, padding_top, padding_left,
0, 0,
// Function which creates a new (standard) depthwise convolution
[](const int n_batches, const int n_input_rows,
const int n_input_cols, const int n_channels,
const int n_output_rows, const int n_output_cols,
const nck::ActivationFunction activation,
const unsigned int padding_top, const unsigned int padding_left,
const unsigned int padding_bottom,
const unsigned int padding_right) -> IDepthwiseConvolution * {
return new DepthwiseConvolution<
OutputTileRows, OutputTileColumns, KernelRows, KernelColumns,
StrideRows, StrideColumns, TIn, TBias, TOut>(
n_batches, n_input_rows, n_input_cols, n_channels,
n_output_rows, n_output_cols, activation, padding_top,
padding_left, padding_bottom, padding_right);
}) {}
MEMBERFN()
::DilatedDepthwiseConvolution(
const int n_batches, const int n_input_rows, const int n_input_cols,
const int n_channels, const int dilation_factor, const int n_output_rows,
const int n_output_cols, nck::ActivationFunction activation,
const unsigned int padding_top, const unsigned int padding_left,
const unsigned int, // padding_bottom
const unsigned int, // padding_right
std::function<IDepthwiseConvolution *(
int, int, int, int, int, int, nck::ActivationFunction, unsigned int,
unsigned int, unsigned int, unsigned int)>
subconvfn // Function to create a new convolution
)
: _dilation_factor(dilation_factor), _n_input_rows(n_input_rows),
_n_input_cols(n_input_cols), _n_channels(n_channels),
_padding_top(static_cast<int>(padding_top)),
_padding_left(static_cast<int>(padding_left)),
_n_output_rows(n_output_rows), _n_output_cols(n_output_cols),
_convs(_dilation_factor) {
// Instantiate the base convolutions
for (uint32_t i = 0; i < static_cast<uint32_t>(_dilation_factor); i++) {
// Compute properties of this row of base convolutions
const int row_top =
i * StrideRows - _padding_top; // -ve values are in the padding
const int row_pad_top =
row_top < 0 ? iceildiv(-row_top, dilation_factor) : 0;
const int _n_input_rows = iceildiv(n_input_rows - i, dilation_factor);
const int _n_output_rows = iceildiv(n_output_rows - i, dilation_factor);
for (uint32_t j = 0; j < static_cast<uint32_t>(_dilation_factor); j++) {
// Compute properties of the base convolution
const int col_left =
j * StrideColumns - padding_left; // -ve values are in the padding
const int col_pad_left =
col_left < 0 ? iceildiv(-col_left, dilation_factor) : 0;
const int _n_input_cols = iceildiv(n_input_cols - j, dilation_factor);
const int _n_output_cols = iceildiv(n_output_cols - j, dilation_factor);
// Create new depthwise convolution engine and include it in the vector
// of engines. The new depthwise convolution engine is created by calling
// the delegate function we received as an argument.
_convs[i].emplace_back(subconvfn(
n_batches, _n_input_rows, _n_input_cols, n_channels, _n_output_rows,
_n_output_cols, activation,
// Note: since we have computed the output tensor size we don't need
// to explicitly provide bottom and right padding values to the
// depthwise convolution.
row_pad_top, col_pad_left, 0, 0));
}
}
}
MEMBERFN(void)::set_input(const void *const inptr) {
set_input(inptr, _n_channels);
}
MEMBERFN(void)::set_input(const void *const inptr, const int ldcol) {
set_input(inptr, _n_input_cols * ldcol, ldcol);
}
MEMBERFN(void)
::set_input(const void *const inptr, const int ldrow, const int ldcol) {
set_input(inptr, _n_input_rows * ldrow, ldrow, ldcol);
}
MEMBERFN(void)
::set_input(const void *const inptr, const int ldbatch, const int ldrow,
const int ldcol) {
// Compute dilated strides
const int ldrow_dilated = ldrow * _dilation_factor;
const int ldcol_dilated = ldcol * _dilation_factor;
// Pass input parameters on to base convolutions
for (uint32_t i = 0; i < static_cast<uint32_t>(_dilation_factor); i++) {
const int top_pos =
i * StrideRows - _padding_top +
((static_cast<int>(i * StrideRows) < _padding_top)
? iceildiv(_padding_top - i * StrideRows, _dilation_factor) *
_dilation_factor
: 0);
const TIn *const inptr_i =
static_cast<const TIn *>(inptr) + top_pos * ldrow;
for (uint32_t j = 0; j < static_cast<uint32_t>(_dilation_factor); j++) {
int left_pos = j * StrideColumns - _padding_left;
while (left_pos < 0)
left_pos += _dilation_factor;
// Modify the pointer to point to the first element of the dilated input
// tensor, then set the input for this convolution engine.
const void *const inptr_ij = inptr_i + left_pos * ldcol;
_convs[i][j]->set_input(inptr_ij, ldbatch, ldrow_dilated, ldcol_dilated);
}
}
}
MEMBERFN(void)::set_output(void *const outptr) {
set_output(outptr, _n_channels);
}
MEMBERFN(void)::set_output(void *const outptr, const int ldcol) {
set_output(outptr, _n_output_cols * ldcol, ldcol);
}
MEMBERFN(void)
::set_output(void *const outptr, const int ldrow, const int ldcol) {
set_output(outptr, _n_output_rows * ldrow, ldrow, ldcol);
}
MEMBERFN(void)
::set_output(void *const outptr, const int ldbatch, const int ldrow,
const int ldcol) {
// Compute dilated strides
const int ldrow_dilated = ldrow * _dilation_factor;
const int ldcol_dilated = ldcol * _dilation_factor;
// Pass input parameters on to base convolutions
for (uint32_t i = 0; i < static_cast<uint32_t>(_dilation_factor); i++) {
for (uint32_t j = 0; j < static_cast<uint32_t>(_dilation_factor); j++) {
// Modify the pointer to point to the first element of the dilated input
// tensor, then set the input for this convolution engine.
void *const outptr_ij =
static_cast<TOut *>(outptr) + i * ldrow + j * ldcol;
_convs[i][j]->set_output(outptr_ij, ldbatch, ldrow_dilated,
ldcol_dilated);
}
}
}
MEMBERFN(int)
::get_output_size(const int dim_size, const unsigned int padding_before,
const unsigned int padding_after, const int dilation_factor) {
const int input_size =
dim_size + static_cast<int>(padding_before + padding_after);
const int window_size = (KernelRows - 1) * dilation_factor + 1;
return iceildiv(input_size - window_size + 1, StrideRows);
}
MEMBERFN(int)
::output_size(const int dim_size, const unsigned int padding_before,
const unsigned int padding_after) const {
return get_output_size(dim_size, padding_before, padding_after,
_dilation_factor);
}
MEMBERFN(size_t)::get_packed_params_size(void) const {
return _convs[0][0]->get_packed_params_size();
}
MEMBERFN(void)::set_packed_params_buffer(void *buffer) {
// Set the buffer for all convolution engines
for (auto &&row : _convs) {
for (auto &&conv : row) {
conv->set_packed_params_buffer(buffer);
}
}
}
MEMBERFN(void)
::pack_params(const void *const weights, const void *const biases) const {
_convs[0][0]->pack_params(weights, biases);
}
MEMBERFN(void)
::pack_params(void *const buffer, const void *const weights,
const void *const biases) const {
_convs[0][0]->pack_params(buffer, weights, biases);
}
MEMBERFN(void)
::pack_params(void *const buffer, const void *const weights,
const unsigned int ldrow, const unsigned int ldcol,
const void *const biases) const {
_convs[0][0]->pack_params(buffer, weights, ldrow, ldcol, biases);
}
MEMBERFN(size_t)::get_working_space_size(unsigned int nthreads) const {
return _convs[0][0]->get_working_space_size(nthreads);
}
MEMBERFN(void)::set_working_space(void *const ws) {
// Use the same working space set for all contained depthwise engines.
for (auto &&row : _convs) {
for (auto &&conv : row) {
conv->set_working_space(ws);
}
}
}
MEMBERFN(unsigned int)::get_window(void) const {
return _convs[0][0]->get_window();
}
MEMBERFN(void)
::run(const unsigned int start, const unsigned int stop,
const unsigned int threadid) {
// Run each contained convolution in turn
for (auto &&row : _convs) {
for (auto &&conv : row) {
conv->run(start, stop, threadid);
}
}
}
} // namespace depthwise