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Diffstat (limited to 'host/utils/converter_benchmark.cpp')
| -rw-r--r-- | host/utils/converter_benchmark.cpp | 433 |
1 files changed, 433 insertions, 0 deletions
diff --git a/host/utils/converter_benchmark.cpp b/host/utils/converter_benchmark.cpp new file mode 100644 index 000000000..0f38e8518 --- /dev/null +++ b/host/utils/converter_benchmark.cpp @@ -0,0 +1,433 @@ +// +// Copyright 2015 Ettus Research LLC +// +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see <http://www.gnu.org/licenses/>. +// + +#include <uhd/utils/safe_main.hpp> +#include <uhd/types/dict.hpp> +#include <uhd/convert.hpp> +#include <uhd/exception.hpp> +#include <boost/program_options.hpp> +#include <boost/format.hpp> +#include <boost/timer.hpp> +#include <boost/algorithm/string.hpp> +#include <iostream> +#include <iomanip> +#include <map> +#include <complex> + +namespace po = boost::program_options; +using namespace uhd::convert; + +enum buf_init_t { + RANDOM, INC +}; + +// Convert `sc16_item32_le' -> `sc16' +// Finds the first _ in format and returns the string +// until then. Returns the entire string if no _ is found. +std::string format_to_type(const std::string &format) +{ + std::string ret_val = ""; + for (size_t i = 0; i < format.length(); i++) { + if (format[i] == '_') { + return ret_val; + } + ret_val.append(1, format[i]); + } + + return ret_val; +} + +void configure_conv( + converter::sptr conv, + const std::string &in_type, + const std::string &out_type +) { + if (in_type == "sc16") { + if (out_type == "fc32") { + std::cout << "Setting scalar to 32767." << std::endl; + conv->set_scalar(32767.); + return; + } + } + + if (in_type == "fc32") { + if (out_type == "sc16") { + std::cout << "Setting scalar to 32767." << std::endl; + conv->set_scalar(32767.); + return; + } + } + + std::cout << "No configuration required." << std::endl; +} + +template <typename T> +void init_random_vector_complex_float(std::vector<char> &buf_ptr, const size_t n_items) +{ + std::complex<T> * const buf = reinterpret_cast<std::complex<T> * const>(&buf_ptr[0]); + for (size_t i = 0; i < n_items; i++) { + buf[i] = std::complex<T>( + T((std::rand()/double(RAND_MAX/2)) - 1), + T((std::rand()/double(RAND_MAX/2)) - 1) + ); + } +} + +template <typename T> +void init_random_vector_complex_int(std::vector<char> &buf_ptr, const size_t n_items) +{ + std::complex<T> * const buf = reinterpret_cast<std::complex<T> * const>(&buf_ptr[0]); + for (size_t i = 0; i < n_items; i++) { + buf[i] = std::complex<T>(T(std::rand()), T(std::rand())); + } +} + +template <typename T> +void init_random_vector_real_int(std::vector<char> &buf_ptr, size_t n_items) +{ + T * const buf = reinterpret_cast<T * const>(&buf_ptr[0]); + for (size_t i = 0; i < n_items; i++) { + buf[i] = T(std::rand()); + } +} + +// Fill a buffer with increasing numbers +template <typename T> +void init_inc_vector(std::vector<char> &buf_ptr, size_t n_items) +{ + T * const buf = reinterpret_cast<T * const>(&buf_ptr[0]); + for (size_t i = 0; i < n_items; i++) { + buf[i] = T(i); + } +} + +void init_buffers( + std::vector< std::vector<char> > &buf, + const std::string &type, + size_t bytes_per_item, + buf_init_t buf_seed_mode +) { + if (buf.empty()) { + return; + } + size_t n_items = buf[0].size() / bytes_per_item; + + /// Fill with incrementing integers + if (buf_seed_mode == INC) { + for (size_t i = 0; i < buf.size(); i++) { + if (type == "sc8") { + init_inc_vector< std::complex<boost::int8_t> >(buf[i], n_items); + } else if (type == "sc16") { + init_inc_vector< std::complex<boost::int16_t> >(buf[i], n_items); + } else if (type == "sc32") { + init_inc_vector< std::complex<boost::int32_t> >(buf[i], n_items); + } else if (type == "fc32") { + init_inc_vector< std::complex<float> >(buf[i], n_items); + } else if (type == "fc64") { + init_inc_vector< std::complex<double> >(buf[i], n_items); + } else if (type == "s8") { + init_inc_vector< boost::int8_t >(buf[i], n_items); + } else if (type == "s16") { + init_inc_vector< boost::int16_t >(buf[i], n_items); + } else if (type == "item32") { + init_inc_vector< boost::uint32_t >(buf[i], n_items); + init_random_vector_real_int<boost::uint32_t>(buf[i], n_items); + } else { + throw uhd::runtime_error(str( + boost::format("Cannot handle data type: %s") % type + )); + } + } + + return; + } + + assert(buf_seed_mode == RANDOM); + + /// Fill with random data + for (size_t i = 0; i < buf.size(); i++) { + if (type == "sc8") { + init_random_vector_complex_int<boost::int8_t>(buf[i], n_items); + } else if (type == "sc16") { + init_random_vector_complex_int<boost::int16_t>(buf[i], n_items); + } else if (type == "sc32") { + init_random_vector_complex_int<boost::int32_t>(buf[i], n_items); + } else if (type == "fc32") { + init_random_vector_complex_float<float>(buf[i], n_items); + } else if (type == "fc64") { + init_random_vector_complex_float<double>(buf[i], n_items); + } else if (type == "s8") { + init_random_vector_real_int<boost::int8_t>(buf[i], n_items); + } else if (type == "s16") { + init_random_vector_real_int<boost::int16_t>(buf[i], n_items); + } else if (type == "item32") { + init_random_vector_real_int<boost::uint32_t>(buf[i], n_items); + } else { + throw uhd::runtime_error(str( + boost::format("Cannot handle data type: %s") % type + )); + } + } +} + +// Returns time elapsed +double run_benchmark( + converter::sptr conv, + const std::vector<const void *> &input_buf_refs, + const std::vector<void *> &output_buf_refs, + size_t n_items, + size_t iterations +) { + boost::timer benchmark_timer; + for (size_t i = 0; i < iterations; i++) { + conv->conv(input_buf_refs, output_buf_refs, n_items); + } + return benchmark_timer.elapsed(); +} + +template <typename T> +std::string void_ptr_to_hexstring(const void *v_ptr, size_t index) +{ + const T *ptr = reinterpret_cast<const T *>(v_ptr); + return str(boost::format("%X") % ptr[index]); +} + +std::string item_to_hexstring( + const void *v_ptr, + size_t index, + const std::string &type +) { + if (type == "fc32") { + return void_ptr_to_hexstring<uint64_t>(v_ptr, index); + } + else if (type == "sc16" || type == "item32") { + return void_ptr_to_hexstring<uint32_t>(v_ptr, index); + } + else if (type == "sc8" || type == "s16") { + return void_ptr_to_hexstring<uint16_t>(v_ptr, index); + } + else if (type == "u8") { + return void_ptr_to_hexstring<uint8_t>(v_ptr, index); + } + else { + return str(boost::format("<unhandled data type: %s>") % type); + } +} + +std::string item_to_string( + const void *v_ptr, + size_t index, + const std::string &type, + const bool print_hex +) { + if (print_hex) { + return item_to_hexstring(v_ptr, index, type); + } + + if (type == "sc16") { + const std::complex<boost::int16_t> *ptr = reinterpret_cast<const std::complex<boost::int16_t> *>(v_ptr); + return boost::lexical_cast<std::string>(ptr[index]); + } + else if (type == "sc8") { + const std::complex<boost::int8_t> *ptr = reinterpret_cast<const std::complex<boost::int8_t> *>(v_ptr); + return boost::lexical_cast<std::string>(ptr[index]); + } + else if (type == "fc32") { + const std::complex<float> *ptr = reinterpret_cast<const std::complex<float> *>(v_ptr); + return boost::lexical_cast<std::string>(ptr[index]); + } + else if (type == "item32") { + const boost::uint32_t *ptr = reinterpret_cast<const boost::uint32_t *>(v_ptr); + return boost::lexical_cast<std::string>(ptr[index]); + } + else if (type == "s16") { + const boost::int16_t *ptr = reinterpret_cast<const boost::int16_t *>(v_ptr); + return boost::lexical_cast<std::string>(ptr[index]); + } + else { + return str(boost::format("<unhandled data type: %s>") % type); + } +} + +int UHD_SAFE_MAIN(int argc, char *argv[]) +{ + std::string in_format, out_format; + std::string priorities; + std::string seed_mode; + priority_type prio = -1, max_prio; + size_t iterations, n_samples; + size_t n_inputs, n_outputs; + buf_init_t buf_seed_mode = RANDOM; + + /// Command line arguments + po::options_description desc("Converter benchmark options:"); + desc.add_options() + ("help", "help message") + ("in", po::value<std::string>(&in_format), "Input format (e.g. 'sc16')") + ("out", po::value<std::string>(&out_format), "Output format (e.g. 'sc16')") + ("samples", po::value<size_t>(&n_samples)->default_value(1000000), "Number of samples per iteration") + ("iterations", po::value<size_t>(&iterations)->default_value(10000), "Number of iterations per benchmark") + ("priorities", po::value<std::string>(&priorities)->default_value("default"), "Converter priorities. Can be 'default', 'all', or a comma-separated list of priorities.") + ("max-prio", po::value<priority_type>(&max_prio)->default_value(4), "Largest available priority (advanced feature)") + ("n-inputs", po::value<size_t>(&n_inputs)->default_value(1), "Number of input vectors") + ("n-outputs", po::value<size_t>(&n_outputs)->default_value(1), "Number of output vectors") + ("debug-converter", "Skip benchmark and print conversion results. Implies iterations==1 and will only run on a single converter.") + ("seed-mode", po::value<std::string>(&seed_mode)->default_value("random"), "How to initialize the data: random, incremental") + ("hex", "When using debug mode, dump memory in hex") + ; + po::variables_map vm; + po::store(po::parse_command_line(argc, argv, desc), vm); + po::notify(vm); + + //print the help message + if (vm.count("help")){ + std::cout << boost::format("UHD Converter Benchmark Tool %s") % desc << std::endl << std::endl; + std::cout << " Use this to benchmark or debug converters." << std::endl + << " When using as a benchmark tool, it will output the execution time\n" + " for every conversion run in CSV format to stdout. Every line between\n" + " the output delimiters {{{ }}} is of the format: <PRIO>,<TIME IN MILLISECONDS>\n" + " When using for converter debugging, every line is formatted as\n" + " <INPUT_VALUE>,<OUTPUT_VALUE>\n" << std::endl; + return EXIT_FAILURE; + } + + // Parse more arguments + if (seed_mode == "incremental") { + buf_seed_mode = INC; + } else if (seed_mode == "random") { + buf_seed_mode = RANDOM; + } else { + std::cout << "Invalid argument: --seed-mode must be either 'incremental' or 'random'." << std::endl; + } + + bool debug_mode = bool(vm.count("debug-converter")); + if (debug_mode) { + iterations = 1; + } + + /// Create the converter(s) ////////////////////////////////////////////// + id_type converter_id; + converter_id.input_format = in_format; + converter_id.output_format = out_format; + converter_id.num_inputs = n_inputs; + converter_id.num_outputs = n_outputs; + std::cout << "Requested converter format: " << converter_id.to_string() + << std::endl; + uhd::dict<priority_type, converter::sptr> conv_list; + if (priorities == "default" or priorities.empty()) { + try { + conv_list[prio] = get_converter(converter_id, prio)(); // Can throw a uhd::key_error + } catch(const uhd::key_error &e) { + std::cout << "No converters found." << std::endl; + return EXIT_FAILURE; + } + } else if (priorities == "all") { + for (priority_type i = 0; i < max_prio; i++) { + try { + // get_converter() returns a factory function, execute that immediately: + converter::sptr conv_for_prio = get_converter(converter_id, i)(); // Can throw a uhd::key_error + conv_list[i] = conv_for_prio; + } catch (...) { + continue; + } + } + } else { // Assume that priorities contains a list of prios (e.g. 0,2,3) + std::vector<std::string> prios_in_list; + boost::split( + prios_in_list, + priorities, + boost::is_any_of(","), // Split at , + boost::token_compress_on // Avoid empty results + ); + BOOST_FOREACH(const std::string &this_prio, prios_in_list) { + size_t prio_index = boost::lexical_cast<size_t>(this_prio); + converter::sptr conv_for_prio = get_converter(converter_id, prio_index)(); // Can throw a uhd::key_error + conv_list[prio_index] = conv_for_prio; + } + } + std::cout << "Found " << conv_list.size() << " converter(s)." << std::endl; + + /// Create input and output buffers /////////////////////////////////////// + // First, convert the types to plain types (e.g. sc16_item32_le -> sc16) + const std::string in_type = format_to_type(in_format); + const std::string out_type = format_to_type(out_format); + const size_t in_size = get_bytes_per_item(in_type); + const size_t out_size = get_bytes_per_item(out_type); + // Create the buffers and fill them with random data & zeros, respectively + std::vector< std::vector<char> > input_buffers(n_inputs, std::vector<char>(in_size * n_samples, 0)); + std::vector< std::vector<char> > output_buffers(n_outputs, std::vector<char>(out_size * n_samples, 0)); + init_buffers(input_buffers, in_type, in_size, buf_seed_mode); + // Create ref vectors for the converter: + std::vector<const void *> input_buf_refs(n_inputs); + std::vector<void *> output_buf_refs(n_outputs); + for (size_t i = 0; i < n_inputs; i++) { + input_buf_refs[i] = reinterpret_cast<const void *>(&input_buffers[i][0]); + } + for (size_t i = 0; i < n_outputs; i++) { + output_buf_refs[i] = reinterpret_cast<void *>(&output_buffers[i][0]); + } + + /// Final configurations to the converter: + std::cout << "Configuring converters:" << std::endl; + BOOST_FOREACH(priority_type prio_i, conv_list.keys()) { + std::cout << "* [" << prio_i << "]: "; + configure_conv(conv_list[prio_i], in_type, out_type); + } + + /// Run the benchmark for every converter //////////////////////////////// + std::cout << "{{{" << std::endl; + if (not debug_mode) { + std::cout << "prio,duration_ms,avg_duration_ms,n_samples,iterations" << std::endl; + BOOST_FOREACH(priority_type prio_i, conv_list.keys()) { + double duration = run_benchmark( + conv_list[prio_i], + input_buf_refs, + output_buf_refs, + n_samples, + iterations + ); + std::cout << boost::format("%i,%d,%d,%d,%d") + % prio_i + % (duration * 1000) + % (duration * 1000.0 / iterations) + % n_samples + % iterations + << std::endl; + } + } + + /// Or run debug mode, which runs one conversion and prints the results //// + if (debug_mode) { + // Only run on the first converter: + run_benchmark( + conv_list[conv_list.keys().at(0)], + input_buf_refs, + output_buf_refs, + n_samples, + iterations + ); + for (size_t i = 0; i < n_samples; i++) { + std::cout << item_to_string(input_buf_refs[0], i, in_type, vm.count("hex")) + << ";" + << item_to_string(reinterpret_cast< const void * >(output_buf_refs[0]), i, out_type, vm.count("hex")) + << std::endl; + } + } + std::cout << "}}}" << std::endl; + + return EXIT_SUCCESS; +} |