test_Mult_Wilson.cpp

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#include "Tests/test.h"

#include "Fopr/fopr_Wilson.h"

#include "IO/gaugeConfig.h"

#include "Tools/gammaMatrixSet.h"
#include "Tools/randomNumberManager.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";
  }

  //- 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();

    Parameters params_all = ParameterManager::read(filename_input);

    Parameters params_test = params_all.lookup("Test_Mult");
    Parameters params_fopr = params_all.lookup("Fopr");

    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_rand_type    = params_test.get_string("random_number_type");
    const unsigned long seed             = params_test.get_unsigned_long("seed_for_random_number");
    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 double tolerance       = params_test.get_double("tolerance");

    const string str_gmset_type = params_fopr.get_string("gamma_matrix_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, "  rand_type    = %s\n", str_rand_type.c_str());
    vout.general(vl, "  seed         = %lu\n", seed);
    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, "Error at %s: input parameters have not been set\n", test_name.c_str());
      exit(EXIT_FAILURE);
    }


    RandomNumberManager::initialize(str_rand_type, seed);


    // ####  Set up a gauge configuration  ####
    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);
    }


    // ####  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();
    }

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


    //- additional verify for Nthread > 1
    int thread_test = 0;

    if (Nthread > 1) {
      double result_single = 0.0;

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

      if (Test::verify(result, result_single, tolerance)) {
        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);

        thread_test = 1;  // test failed.
      }
    }


    //- 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");


    RandomNumberManager::finalize();


    if (do_check) {
      int verify_test = Test::verify(result, expected_result, tolerance);

      if ((thread_test == 0) && (verify_test == 0)) {
        return EXIT_SUCCESS;
      } else {
        return EXIT_FAILURE;
      }
    } else {
      vout.detailed(vl, "check skipped: expected_result not set.\n\n");
      return EXIT_SKIP;
    }
  }
} // namespace Test_Mult_Wilson