diff --git a/cpp/switchchain_ccm_constructionrate.cpp b/cpp/switchchain_ccm_constructionrate.cpp new file mode 100644 index 0000000000000000000000000000000000000000..1c175afde41f9c7670c1c4b309223f2c7eb3b840 --- /dev/null +++ b/cpp/switchchain_ccm_constructionrate.cpp @@ -0,0 +1,107 @@ +#include "exports.hpp" +#include "graph.hpp" +#include "graph_ccm.hpp" +#include "graph_powerlaw.hpp" +#include "switchchain.hpp" +#include +#include +#include +#include +#include +#include + +int main(int argc, char* argv[]) { + // Simulation parameters + const int numVerticesMin = 1000; + const int numVerticesMax = 1000; + const int numVerticesStep = 500; + + //float tauValues[] = {2.1f, 2.2f, 2.3f, 2.4f, 2.5f, 2.6f, 2.7f, 2.8f, 2.9f}; + float tauValues[] = {2.1f, 2.5f, 2.9f}; + + const int totalDegreeSamples = 5000; + const int ccmConstructionAttemps = 200; + + // Output file + std::ofstream outfile; + if (argc >= 2) + outfile.open(argv[1]); + else + outfile.open("graphdata_ccm_constructionrate.m"); + if (!outfile.is_open()) { + std::cout << "ERROR: Could not open output file.\n"; + return 1; + } + + // Output Mathematica-style comment to indicate file contents + outfile << "(*\n"; + outfile << "n from " << numVerticesMin << " to " << numVerticesMax + << " step " << numVerticesStep << std::endl; + outfile << "tauValues: " << tauValues << std::endl; + outfile << "degreeSamples: " << totalDegreeSamples << std::endl; + outfile << "mixingTime: -\n"; + outfile << "measurements: -\n"; + outfile << "measureSkip: -\n"; + outfile << "ccm construction attemps: " << ccmConstructionAttemps << std::endl; + outfile << "data:\n"; + outfile << "1: {n,tau}\n"; + outfile << "3: CCMdu construction rate \n"; + outfile << "4: CCMd construction rate \n"; + outfile << "*)" << std::endl; + + // Mathematica does not accept normal scientific notation + outfile << std::fixed; + outfile << '{'; + bool outputComma = false; + + std::mt19937 rng(std::random_device{}()); + Graph g; + for (int numVertices = numVerticesMin; numVertices <= numVerticesMax; + numVertices += numVerticesStep) { + for (float tau : tauValues) { + // For a single n,tau take samples over several instances of + // the degree distribution. + for (int degreeSample = 0; degreeSample < totalDegreeSamples; + ++degreeSample) { + DegreeSequence ds; + generatePowerlawGraph(numVertices, tau, g, ds, rng); + + std::cout << "Running (n,tau) = (" << numVertices << ',' << tau + << "). " << std::flush; + + // + // Test the GCM1 and GCM2 success rate + // + int successrate1 = 0; + int successrate2 = 0; + for (int i = 0; i < ccmConstructionAttemps; ++i) { + Graph gtemp; + // Take new highest degree every time + if (constrainedConfigurationModel(ds, gtemp, rng, false)) { + ++successrate1; + } + // Finish all pairings of highest degree first + if (constrainedConfigurationModel(ds, gtemp, rng, true)) { + ++successrate2; + } + } + + std::cout << "Done." << std::flush; + + if (outputComma) + outfile << ',' << '\n'; + outputComma = true; + + outfile << '{'; + outfile << '{' << numVertices << ',' << tau << '}'; + outfile << ',' << float(successrate1)/float(ccmConstructionAttemps); + outfile << ',' << float(successrate2)/float(ccmConstructionAttemps); + outfile << '}' << std::flush; + + std::cout << std::endl; + } + } + } + outfile << '}'; + return 0; +}