test_HMC_Quenched.cpp

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#include "Tests/test.h"

#include "Action/action.h"

#include "HMC/hmc_General.h"
#include "HMC/builder_Integrator.h"

#include "IO/gaugeConfig.h"

#include "Tools/file_utils.h"
#include "Tools/randomNumberManager.h"
#include "Tools/randomNumbers_Mseries.h"

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

namespace Test_HMC_Quenched {
  const std::string test_name = "HMC.Quenched.Nf0";

  //- test-private parameters
  namespace {
    const std::string filename_input = "test_HMC_Quenched.yaml";
  }

  //- prototype declaration
  int update_Nf0(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_Nf0
      );
#endif
  }
#endif

  //====================================================================
  int update_Nf0(void)
  {
    // ####  parameter setup  ####
    int Nc   = CommonParameters::Nc();
    int Nvol = CommonParameters::Nvol();
    int Ndim = CommonParameters::Ndim();

    Parameters params_all = ParameterManager::read(filename_input);

    Parameters params_test       = params_all.lookup("Test_HMC_Quenched");
    Parameters params_action_G   = params_all.lookup("Action_G");
    Parameters params_integrator = params_all.lookup("Builder_Integrator");
    Parameters params_hmc        = params_all.lookup("HMC_General");

    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 string        str_rand_type    = params_test.get_string("random_number_type");
    const unsigned long seed             = params_test.get_unsigned_long("seed_for_random_number");
    int                 i_conf           = params_test.get_int("trajectory_number");
    int                 Ntraj            = params_test.get_int("trajectory_number_step");
    const int           i_save_conf      = params_test.get_int("save_config_interval");
    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");
    const int              Nlevels           = params_integrator.get_int("number_of_levels");
    const std::vector<int> level_action      = params_integrator.get_int_vector("level_of_actions");

    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, "  rand_type      = %s\n", str_rand_type.c_str());
    vout.general(vl, "  seed           = %lu\n", seed);
    vout.general(vl, "  i_conf       = %d\n", i_conf);
    vout.general(vl, "  Ntraj        = %d\n", Ntraj);
    vout.general(vl, "  i_save_conf  = %d\n", i_save_conf);
    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);
    err += ParameterCheck::non_negative(i_conf);
    err += ParameterCheck::non_negative(Ntraj);
    err += ParameterCheck::non_negative(i_save_conf);

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


    RandomNumberManager::initialize(str_rand_type, seed);


    // #####  object setup  #####
    unique_ptr<Field_G> U(new Field_G(Nvol, Ndim));

    if (str_gconf_status == "Continue") {
      GaugeConfig(str_gconf_read).read(U, readfile);
    } else if (str_gconf_status == "Cold_start") {
      GaugeConfig("Unit").read(U);
    } else if (str_gconf_status == "Hot_start") {
      GaugeConfig("Random").read(U);
    } else {
      vout.crucial(vl, "Error at %s: unsupported gconf status \"%s\"\n", test_name.c_str(), str_gconf_status.c_str());
      exit(EXIT_FAILURE);
    }

    unique_ptr<GaugeConfig> gconf_write(new GaugeConfig(str_gconf_write));


    unique_ptr<Action> action_G(Action::New(str_action_G_type));
    action_G->set_parameters(params_action_G);

    ActionList actions(Nlevels);
    actions.append(level_action[0], action_G);

    unique_ptr<Builder_Integrator> builder(new Builder_Integrator(actions));
    builder->set_parameters(params_integrator);
    Integrator *integrator = builder->build();

    unique_ptr<RandomNumbers> rand(new RandomNumbers_Mseries(i_conf));

    HMC_General hmc(actions, integrator, rand);
    hmc.set_parameters(params_hmc);

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


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

    vout.general(vl, "HMC: Ntraj = %d\n", Ntraj);

    double result = 0.0;
    for (int traj = 0; traj < Ntraj; ++traj) {
      vout.general(vl, "\n");
      vout.general(vl, "traj = %d\n", traj);

      result = hmc.update(*U);

      if ((i_conf + traj + 1) % i_save_conf == 0) {
        std::string filename = FileUtils::generate_filename("%s-%06d", writefile.c_str(), (i_conf + traj + 1));
        gconf_write->write_file(U, filename);
      }
    }

    gconf_write->write_file(U, writefile);

    timer->report();

    RandomNumberManager::finalize();


    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_HMC_Quenched