diff --git a/cpp/switchchain_canonical_timeevol.cpp b/cpp/switchchain_canonical_timeevol.cpp new file mode 100644 index 0000000000000000000000000000000000000000..78b5bc39b054e639b348337144e75385b4c54bb4 --- /dev/null +++ b/cpp/switchchain_canonical_timeevol.cpp @@ -0,0 +1,89 @@ +#include "exports.hpp" +#include "graph.hpp" +#include "graph_powerlaw.hpp" +#include "graph_spectrum.hpp" +#include "histogram.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 = 1000; + + float tauValues[] = {2.1f, 2.3f, 2.5f, 2.7f, 2.9f}; + + auto getMeasurements = [](int n, float tau) { + (void)n; + (void)tau; + return 50000; + }; + + // Output file + std::ofstream outfile; + if (argc >= 2) + outfile.open(argv[1]); + else + outfile.open("graphdata_canonical_timeevol.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 << "Canonical degree sequence.\n"; + outfile << "10 runs per starting point.\n"; + outfile << "Measurements: 50000\n"; + outfile << "data:\n"; + outfile << "1: {n,tau}\n"; + outfile << "2: {triangles}\n"; + outfile << "*)" << std::endl; + + // Mathematica does not accept normal scientific notation + outfile << std::fixed; + outfile << '{' << '\n'; + bool outputComma = false; + + SwitchChain chain; + Graph g; + for (int numVertices = numVerticesMin; numVertices <= numVerticesMax; + numVertices += numVerticesStep) { + for (float tau : tauValues) { + DegreeSequence ds; + generateCanonicalPowerlawGraph(numVertices, tau, g, ds); + + std::cout << "Running (n,tau) = (" << numVertices << ',' << tau + << "). " << std::flush; + + for (int j = 0; j < 10; ++j) { + std::vector triangles; + chain.initialize(g, true); + int measurements = getMeasurements(numVertices, tau); + for (int i = 0; i < measurements; ++i) { + chain.doMove(true); + triangles.push_back(chain.g.getTrackedTriangles()); + } + + if (outputComma) + outfile << ',' << '\n'; + outputComma = true; + outfile << '{' << '{' << numVertices << ',' << tau << '}'; + outfile << ',' << triangles; + outfile << '}' << std::flush; + } + std::cout << std::endl; + } + } + outfile << '\n' << '}'; + return 0; +}