test_Mult_Wilson.cpp

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#include "test.h"

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

#include "fopr_Wilson.h"
#include "gammaMatrixSet.h"

//- profiler of fx10
//#include "fj_tool/fapp.h"

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

namespace Test_Mult_Wilson {
  const std::string test_name = "Mult.Wilson";

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

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

        Register_int("number_of_mult", 0);

        Register_string("verbose_level", "NULL");

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

  //- prototype declaration
  int mult(void);

#ifdef USE_TESTMANAGER_AUTOREGISTER
  namespace {
    static const bool is_registered = TestManager::RegisterTest(
      test_name,
      mult
      );
  }
#endif

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

    int Lvol    = CommonParameters::Lvol();
    int NPE     = CommonParameters::NPE();
    int Nthread = ThreadManager_OpenMP::get_num_threads_available();

    unique_ptr<Parameters> params_test(new Parameters_Test_Mult_Wilson);
    unique_ptr<Parameters> params_fopr(ParametersFactory::New("Fopr.Wilson"));
    unique_ptr<Parameters> params_all(new Parameters);

    params_all->Register_Parameters("Test_Mult", params_test);
    params_all->Register_Parameters("Fopr", params_fopr);

    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    Nmult            = params_test->get_int("number_of_mult");
    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_gmset_type = params_fopr->get_string("gamma_matrix_type");
    const int    Ns             = params_fopr->get_int("extent_of_5th_dimension");

    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, "  Nmult        = %d\n", Nmult);
    vout.general(vl, "  vlevel       = %s\n", str_vlevel.c_str());
    vout.general(vl, "  gmset_type   = %s\n", str_gmset_type.c_str());

    //- 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<GammaMatrixSet> gmset(GammaMatrixSet::New(str_gmset_type));

    unique_ptr<Fopr> fopr(Fopr::New("Wilson", str_gmset_type));
    fopr->set_parameters(*params_fopr);
    fopr->set_config(U);
    fopr->set_mode("D");

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

    vout.general(vl, "\n");


    // ####  Execution main part  ####
    Field_F b, y;
    b.set(1.0);

    double result = 0.0;

    timer->start();
    //- profiler of fx10 starts
    // fapp_start("Mult.Domainwall",1,1);

#pragma omp parallel
    {
      for (int i = 0; i < Nmult; ++i) {
        fopr->mult(y, b);
      }
      result = y.norm();
    }


#ifdef DEBUG
    //- additional verify for Nthread > 1
    if (Nthread > 1) {
      double epsilon = CommonParameters::epsilon_criterion();

      fopr->mult(y, b);
      double result_single = y.norm();

      if (Test::verify(abs(result - result_single), 0.0, epsilon)) {
        vout.crucial("%s: result(multithread) not equal to result(single thread)\n", test_name.c_str());
        vout.crucial("%s:   result(multithread)   = %22.14e\n", test_name.c_str(), result);
        vout.crucial("%s:   result(single thread) = %22.14e\n", test_name.c_str(), result_single);
        return EXIT_FAILURE;
      }
    }
#endif

    //- profiler of fx10 ends
    // fapp_stop("Mult.Wilson",1,1);
    timer->stop();
    double elapse_sec = timer->elapsed_sec();


    //- Flops counting
    double gflo_mult   = fopr->flop_count() / 1.0e+9;
    double gflops_mult = gflo_mult * Nmult / (elapse_sec * NPE * Nthread);

    vout.general(vl, "%s: %12.4e GFlops / core\n", test_name.c_str(), gflops_mult);
    vout.general(vl, "\n");


    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_Mult_Wilson