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Params.cpp
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Params.cpp
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/******************************************************************************
* Copyright 2017 Matthieu Lefebvre
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
#include "Params.h"
#include <boost/mpi/collectives.hpp>
namespace kernel_validation {
void Params::set_from_cmdline(int argc, char* argv[])
{
po::options_description desc("Options");
desc.add_options()
("help", "Produce this help message")
("reference", po::value<std::string>(), "Set reference file.")
("kernels", po::value<std::string>(), "Set kernel file to be tested.")
("tolerance", po::value<float>()->default_value(tolerance), "Set comparison tolerance.")
("kernel-names", po::value<std::vector<std::string>>()
->multitoken()
->zero_tokens()
->composing(), "List of space separated kernel names");
po::variables_map vm;
po::store(po::parse_command_line(argc, argv, desc), vm);
po::notify(vm);
try {
if (vm.count("help")) {
throw std::runtime_error("Asked for help.");
}
if (vm.count("reference")) {
reference_file = vm["reference"].as<std::string>();
if (!fs::exists(reference_file) || !fs::is_regular_file(reference_file)) {
throw std::runtime_error("Reference file does not exists.");
}
}
else {
throw std::runtime_error("Should specify a reference file.");
}
if (vm.count("kernels")) {
kernels_file = vm["kernels"].as<std::string>();
if (!fs::exists(kernels_file) || !fs::is_regular_file(kernels_file)) {
throw std::runtime_error("Reference file does not exists.");
}
}
else {
throw std::runtime_error("Should specify a kernels file.");
}
if (vm.count("tolerance")) {
tolerance = vm["tolerance"].as<float>();
}
if (vm.count("kernel-names")) {
kernel_names = vm["kernel-names"].as<std::vector<std::string>>();
}
}
catch (std::runtime_error& e) {
std::cerr << desc << "\n";
std::cerr << "Default kernels are: " << std::endl;
for (auto& x: kernel_names) {
std::cerr << " * " << x << std::endl;
}
throw e;
}
}
void Params::print(std::ostream& buffer)
{
buffer << std::endl
<< "********************************************" << std::endl
<< "| PARAMETERS |" << std::endl
<< "--------------------------------------------" << std::endl
<< "Reference file is: " << reference_file << std::endl
<< "Kernels file is: " << kernels_file << std::endl
<< "Using a tolerance of: " << tolerance << std::endl
<< "Kernels to be computed are: " << std::endl;
for (auto& x: kernel_names) {
buffer << " * " << x << std::endl;
}
buffer << "********************************************" << std::endl << std::endl;
}
void broadcast_params(mpi::communicator& comm, Params& params)
{
mpi::broadcast(comm, params.reference_file, 0);
mpi::broadcast(comm, params.kernels_file, 0);
mpi::broadcast(comm, params.tolerance, 0);
int num_kernels = params.kernel_names.size();
mpi::broadcast(comm, num_kernels, 0);
if (comm.rank()) {
params.kernel_names.clear();
params.kernel_names.resize(num_kernels);
}
for (auto& k : params.kernel_names) {
mpi::broadcast(comm, k, 0);
}
}
} // namespace kernel_validation