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/***************************************************************************************************
* Copyright (c) 2017 - 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: BSD-3-Clause
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
**************************************************************************************************/
#pragma once
#include <vector>
#include <iostream>
// Cutlass command line parser
#include "cutlass/util/command_line.h"
class Options {
public:
bool help;
bool good;
std::vector<int> extent; ///< extent of tile to fill
std::vector<int> stride; ///< stride vector for layout function
std::vector<int> output_shape; ///< output shape
int vectorize; ///< sequences of consecutive output elements are concatenated into a vector
/// if, and only if, they were consecutive in source memory
public:
/// Options
Options():
help(false),
good(true),
extent({32, 8}),
stride({32}),
output_shape({16, 8}),
vectorize(1) {
}
/// Constructs from command line parser
Options(cutlass::CommandLine const & cmd_line): help(false), good(true) {
if (cmd_line.check_cmd_line_flag("help") ||
cmd_line.check_cmd_line_flag("h")) {
help = true;
}
if (cmd_line.check_cmd_line_flag("extent")) {
cmd_line.get_cmd_line_arguments("extent", extent);
}
else {
extent = {32, 8};
}
if (cmd_line.check_cmd_line_flag("stride")) {
cmd_line.get_cmd_line_arguments("stride", stride);
}
int default_output_shape[] = {16, 8};
if (cmd_line.check_cmd_line_flag("output-shape")) {
cmd_line.get_cmd_line_arguments("output-shape", output_shape);
}
for (int i = int(output_shape.size()); i < 2; ++i) {
output_shape.push_back(default_output_shape[i]);
}
if (cmd_line.check_cmd_line_flag("vectorize")) {
cmd_line.get_cmd_line_argument("vectorize", vectorize);
}
else {
vectorize = 1;
}
if (output_shape.front() % vectorize) {
std::cerr << "Error: --vectorize=" << vectorize
<< " must divide contiguous elements in --output-shape="
<< output_shape.at(0) << "," << output_shape.at(1) << std::endl;
good = false;
}
}
/// Prints usage statement
static void print_usage(std::ostream &out) {
out
<< " Options:\n"
<< " --help Displays this help message.\n"
<< " --extent=<extent> Specifies the layout-specific extent (as comma-delimited array).\n"
<< " --stride=<stride> Specifies the layout-specific stride vector (comma-delimited array)\n"
<< " --output-shape=<extent> Specifies the dimensions of a row-major output matrix. \n"
<< " --vectorize=<vector length> If possible, vectorizes the output into vectors of consecutive elements\n";
}
};
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