test_TopologicalCharge.cpp

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#include "test.h"

#include "gaugeConfig.h"

#include "topologicalCharge.h"

#include "projection.h"
#include "smear.h"

#include "randomNumbers_Mseries.h"

//====================================================================

namespace Test_TopologicalCharge {
  const std::string test_name = "TopologicalCharge";

  //- test-private parameters
  namespace {
    const std::string filename_input  = "test_TopologicalCharge.yaml";
    const std::string filename_output = "stdout";

    class Parameters_Test_TopologicalCharge : public Parameters {
     public:
      Parameters_Test_TopologicalCharge()
      {
        Register_string("gauge_config_status", "NULL");
        Register_string("gauge_config_type_input", "NULL");
        Register_string("config_filename_input", "NULL");

        Register_int("number_of_max_smearing", 0);
        Register_int("number_of_measurement_step", 0);

        Register_string("verbose_level", "NULL");

        Register_double("expected_result", 0.0);
      }
    };
  }

  //- prototype declaration
  int topological_charge(void);

#ifdef USE_TESTMANAGER_AUTOREGISTER
  namespace {
#if defined(USE_GROUP_SU2)
    // Nc=2 is not available.
#else
    static const bool is_registered = TestManager::RegisterTest(
      test_name,
      topological_charge
      );
#endif
  }
#endif

  //====================================================================
  int topological_charge(void)
  {
    // ####  parameter setup  ####
    int Nvol = CommonParameters::Nvol();
    int Ndim = CommonParameters::Ndim();

    unique_ptr<Parameters> params_test(new Parameters_Test_TopologicalCharge);
    unique_ptr<Parameters> params_topo(ParametersFactory::New("TopologicalCharge"));
    unique_ptr<Parameters> params_proj(ParametersFactory::New("Projection"));
    unique_ptr<Parameters> params_smear(ParametersFactory::New("Smear"));
    unique_ptr<Parameters> params_all(new Parameters);

    params_all->Register_Parameters("Test_TopologicalCharge", params_test);
    params_all->Register_Parameters("TopologicalCharge", params_topo);
    params_all->Register_Parameters("Projection", params_proj);
    params_all->Register_Parameters("Smear", params_smear);

    ParameterManager::read(filename_input, params_all);

    const string str_gconf_status = params_test->get_string("gauge_config_status");
    const string str_gconf_read   = params_test->get_string("gauge_config_type_input");
    const string readfile         = params_test->get_string("config_filename_input");
    const int    Nsmear           = params_test->get_int("number_of_max_smearing");
    const int    Nmeas            = params_test->get_int("number_of_measurement_step");
    const string str_vlevel       = params_test->get_string("verbose_level");

    const bool   do_check        = params_test->is_set("expected_result");
    const double expected_result = do_check ? params_test->get_double("expected_result") : 0.0;

    const string str_proj_type  = params_proj->get_string("projection_type");
    const string str_smear_type = params_smear->get_string("smear_type");

    Bridge::VerboseLevel vl = vout.set_verbose_level(str_vlevel);

    //- print input parameters
    vout.general(vl, "  gconf_status = %s\n", str_gconf_status.c_str());
    vout.general(vl, "  gconf_read   = %s\n", str_gconf_read.c_str());
    vout.general(vl, "  readfile     = %s\n", readfile.c_str());
    vout.general(vl, "  Nsmear       = %d\n", Nsmear);
    vout.general(vl, "  Nmeas        = %d\n", Nmeas);
    vout.general(vl, "  vlevel       = %s\n", str_vlevel.c_str());
    vout.general(vl, "  proj_type    = %s\n", str_proj_type.c_str());
    vout.general(vl, "  smear_type   = %s\n", str_smear_type.c_str());
    vout.general(vl, "\n");

    //- input parameter check
    int err = 0;
    err += ParameterCheck::non_NULL(str_gconf_status);

    if (err) {
      vout.crucial(vl, "%s: Input parameters have not been set.\n", test_name.c_str());
      exit(EXIT_FAILURE);
    }


    // #### Set up a gauge configuration  ####
    unique_ptr<Field_G>     U(new Field_G(Nvol, Ndim));
    unique_ptr<GaugeConfig> gconf_read(new GaugeConfig(str_gconf_read));

    if (str_gconf_status == "Continue") {
      gconf_read->read_file(U, readfile);
    } else if (str_gconf_status == "Cold_start") {
      U->set_unit();
    } else if (str_gconf_status == "Hot_start") {
      int i_seed_noise = 1234567;
      unique_ptr<RandomNumbers> rand(new RandomNumbers_Mseries(i_seed_noise));
      U->set_random(rand);
    } else {
      vout.crucial(vl, "%s: unsupported gconf status \"%s\".\n", test_name.c_str(), str_gconf_status.c_str());
      exit(EXIT_FAILURE);
    }


    // #### object setup #####
    unique_ptr<TopologicalCharge> topological_charge(new TopologicalCharge());
    topological_charge->set_parameters(*params_topo);

    unique_ptr<Projection> proj(Projection::New(str_proj_type));
    unique_ptr<Smear>      smear(Smear::New(str_smear_type, proj));
    smear->set_parameters(*params_smear);

    unique_ptr<Timer> timer(new Timer(test_name));


    // ####  Execution main part  ####
    timer->start();

    Field_G Uorg(Nvol, Ndim), Usmear(Nvol, Ndim);
    Uorg   = *U;
    Usmear = *U;

    double result = 0.0;
    for (int i_smear = 0; i_smear <= Nsmear; ++i_smear) {
      if (i_smear > 0) smear->smear(Usmear, Uorg);

      if ((i_smear % Nmeas) == 0) {
        result = topological_charge->measure(Usmear);

        vout.general(vl, "i_smear,Q = %d %20.16e\n", i_smear, result);
        vout.general(vl, "\n");
      }

      Uorg = Usmear;
    }

    timer->report();


    if (do_check) {
      return Test::verify(result, expected_result);
    } else {
      vout.detailed(vl, "check skipped: expected_result not set.\n\n");
      return EXIT_SKIP;
    }
  }
} // namespace Test_TopologicalCharge