87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
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#include <CLI11.hpp>
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#include "mandel.hpp"
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// Reference:
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// https://en.wikipedia.org/wiki/Mandelbrot_set#Generalizations
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// https://people.sc.fsu.edu/~jburkardt/cpp_src/mandelbrot_openmp/mandelbrot_openmp.html
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// http://courses.cms.caltech.edu/cs11/material/dgc/lab4/
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// https://github.com/gasparian/mandelbrot_cpp/blob/master/mandelbrot.cpp
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// https://csl.name/post/mandelbrot-rendering/
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// http://linas.org/art-gallery/escape/smooth.html
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int H = 1000;
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int W = 1000;
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unsigned char* RGB = nullptr;
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void mandelbrot(
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const std::string& model,
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const unsigned num_threads,
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const unsigned num_rounds
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) {
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std::cout << std::setw(12) << "size"
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<< std::setw(12) << "runtime"
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<< std::endl;
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for(int N = 100; N<=1000; N+=100) {
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W = N;
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H = N;
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double runtime {0.0};
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RGB = static_cast<unsigned char *>(malloc (W * H * 3 * sizeof(unsigned char)));
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for(unsigned j=0; j<num_rounds; ++j) {
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if(model == "tf") {
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runtime += measure_time_taskflow(num_threads).count();
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}
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else if(model == "tbb") {
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runtime += measure_time_tbb(num_threads).count();
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}
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else if(model == "omp") {
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runtime += measure_time_omp(num_threads).count();
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}
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else assert(false);
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}
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std::cout << std::setw(12) << N
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<< std::setw(12) << runtime / num_rounds / 1e3
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<< std::endl;
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//dump_tga(W, H, RGB, "mandelbrot_set.tga");
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free(RGB);
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}
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}
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int main(int argc, char* argv[]) {
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CLI::App app{"Mandelbrot set"};
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unsigned num_threads {1};
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app.add_option("-t,--num_threads", num_threads, "number of threads (default=1)");
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unsigned num_rounds {1};
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app.add_option("-r,--num_rounds", num_rounds, "number of rounds (default=1)");
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std::string model = "tf";
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app.add_option("-m,--model", model, "model name tbb|omp|tf (default=tf)")
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->check([] (const std::string& m) {
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if(m != "tbb" && m != "omp" && m != "tf") {
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return "model name should be \"tbb\", \"omp\", or \"tf\"";
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}
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return "";
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});
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CLI11_PARSE(app, argc, argv);
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std::cout << "model=" << model << ' '
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<< "num_threads=" << num_threads << ' '
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<< "num_rounds=" << num_rounds << ' '
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<< std::endl;
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mandelbrot(model, num_threads, num_rounds);
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}
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