test_GradientFlow.cpp

Go to the documentation of this file.

#include "test.h"

#include "gradientFlow.h"

#include "gaugeConfig.h"
#include "randomNumbers_Mseries.h"

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

namespace Test_GradientFlow {
  const std::string test_name = "GradientFlow";

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

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

        Register_string("gauge_config_type_output", "NULL");
        Register_string("config_filename_output", "NULL");

        Register_int("number_of_steps", 0);
        Register_double("max_flow_time", 0.0);

        Register_string("verbose_level", "NULL");

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

  //- prototype declaration
  int update(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,
      update
      );
#endif
  }
#endif

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

    unique_ptr<Parameters> params_test(new Parameters_Test_GradientFlow);
    unique_ptr<Parameters> params_action_G(ParametersFactory::New("Action"));
    unique_ptr<Parameters> params_g_flow(ParametersFactory::New("GradientFlow"));
    unique_ptr<Parameters> params_all(new Parameters);

    params_all->Register_Parameters("Test_GradientFlow", params_test);
    params_all->Register_Parameters("Action_G", params_action_G);
    params_all->Register_Parameters("GradientFlow", params_g_flow);

    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 string str_gconf_write  = params_test->get_string("gauge_config_type_output");
    const string writefile        = params_test->get_string("config_filename_output");
    const int    Nstep            = params_test->get_int("number_of_steps");
    const double t_flow_max       = params_test->get_double("max_flow_time");
    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_action_G_type = params_action_G->get_string("action_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, "  gconf_write  = %s\n", str_gconf_write.c_str());
    vout.general(vl, "  writefile    = %s\n", writefile.c_str());
    vout.general(vl, "  Nstep        = %d\n", Nstep);
    vout.general(vl, "  t_flow_max   = %10.6f\n", t_flow_max);
    vout.general(vl, "  vlevel       = %s\n", str_vlevel.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);
    }


    // #### object setup #####
    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);
    }

    unique_ptr<Action> action_G(Action::New(str_action_G_type));
    //- beta is overwritten to be Nc in GradientFlow
    params_action_G->set_double("beta", static_cast<double>(Nc));
    action_G->set_parameters(*params_action_G);

    unique_ptr<GradientFlow> g_flow(new GradientFlow(action_G));
    g_flow->set_parameters(*params_g_flow);

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


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

    double t_flow = 0.0;
    double result = 0.0;

    for (int i = 0; i < Nstep; ++i) {
      result = g_flow->evolve(t_flow, *U);

      if (t_flow > t_flow_max) break;
    }

    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_GradientFlow