test_SF_fAfP_Boundary_Meson_2ptFunction.cpp

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#include "test.h"

#include "gaugeConfig.h"

#include "fopr_Clover_SF.h"
#include "source_Wall_SF.h"

#include "director_Smear.h"
#include "fopr_Smeared.h"

#include "gammaMatrixSet.h"
#include "projection.h"
#include "smear.h"
#include "solver.h"

#include "fprop_Standard_lex.h"

#include "corr2pt_Wilson_SF.h"

#include "randomNumbers_Mseries.h"

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

namespace Test_SF_fAfP {
  const std::string test_name = "SF_fAfP.Boundary_Meson_2ptFunction";

  //- test-private parameters
  namespace {
    const std::string filename_input  = "test_SF_fAfP_Boundary_Meson_2ptFunction.yaml";
    const std::string filename_output = "stdout";

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

        Register_string("verbose_level", "NULL");

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

  //- prototype declaration
  int boundary_meson_2ptFunction(void);

#ifdef USE_TESTMANAGER_AUTOREGISTER
  namespace {
#if defined(USE_OPENMP) || defined(USE_GROUP_SU2)
    // Nc=2 is not available.
#else
    static const bool is_registered = TestManager::RegisterTest(
      test_name,
      boundary_meson_2ptFunction
      );
#endif
  }
#endif

  //====================================================================
  int boundary_meson_2ptFunction(void)
  {
    // #####  parameter setup  #####
    int Nc   = CommonParameters::Nc();
    int Nd   = CommonParameters::Nd();
    int Ndim = CommonParameters::Ndim();
    int Nvol = CommonParameters::Nvol();

    unique_ptr<Parameters> params_test(new Parameters_Test_SF_fAfP);
    unique_ptr<Parameters> params_clover(ParametersFactory::New("Fopr.Clover_SF"));
    unique_ptr<Parameters> params_proj(ParametersFactory::New("Projection"));
    unique_ptr<Parameters> params_smear(ParametersFactory::New("Smear"));
    unique_ptr<Parameters> params_dr_smear(ParametersFactory::New("Director_Smear"));
    unique_ptr<Parameters> params_solver(ParametersFactory::New("Solver"));
    unique_ptr<Parameters> params_source(ParametersFactory::New("Source_Wall_SF"));
    unique_ptr<Parameters> params_all(new Parameters);

    params_all->Register_Parameters("Test_SF_fAfP", params_test);
    params_all->Register_Parameters("Fopr_Clover_SF", params_clover);
    params_all->Register_Parameters("Projection", params_proj);
    params_all->Register_Parameters("Smear_SF", params_smear);
    params_all->Register_Parameters("Director_Smear", params_dr_smear);
    params_all->Register_Parameters("Solver", params_solver);
    params_all->Register_Parameters("Source_Wall_SF", params_source);

    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_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_clover->get_string("gamma_matrix_type");
    const string str_proj_type   = params_proj->get_string("projection_type");
    const string str_smear_type  = params_smear->get_string("smear_type");
    const string str_solver_type = params_solver->get_string("solver_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, "  vlevel       = %s\n", str_vlevel.c_str());
    vout.general(vl, "  gmset_type   = %s\n", str_gmset_type.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, "  solver_type  = %s\n", str_solver_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);
    }

    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<Director> dr_smear(new Director_Smear(smear));
    dr_smear->set_parameters(*params_dr_smear);
    dr_smear->set_config(U);

    unique_ptr<Director_Smear> dr_smear_config(new Director_Smear(smear));
    dr_smear_config->set_parameters(*params_dr_smear);
    dr_smear_config->set_config(U);

    int     Nsmear  = dr_smear_config->get_Nsmear();
    Field_G *Usmear = (Field_G *)dr_smear_config->getptr_smearedConfig(Nsmear);


    // ####  object setup  #####
    unique_ptr<GammaMatrixSet> gmset(GammaMatrixSet::New(str_gmset_type));

    //- NB. Chiral repr has not been implemented for SF, yet.
    // unique_ptr<Fopr> fopr_c(Fopr::New("Clover_SF", str_gmset_type));
    unique_ptr<Fopr> fopr_c(new Fopr_Clover_SF());
    fopr_c->set_parameters(*params_clover);

    unique_ptr<Fopr> fopr_smear(Fopr::New("Smeared", fopr_c, dr_smear));
    //- NB. U will be converted to Usmear in fopr->set_config
    fopr_smear->set_config(U);

    unique_ptr<Solver> solver(Solver::New(str_solver_type, fopr_smear));
    solver->set_parameters(*params_solver);

    unique_ptr<Fprop> fprop_lex(new Fprop_Standard_lex(solver));

    unique_ptr<Source_Wall_SF> source(new Source_Wall_SF());
    source->set_parameters(*params_source);
    source->set_config(Usmear);

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


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

    std::vector<Field_F> H(Nc * Nd);
    std::vector<Field_F> Hpr(Nc * Nd);
    Field_F              xq, b, b2;

    int    Nconv;
    double diff, diff2;

    vout.general(vl, "\n");
    vout.general(vl, "Solving quark propagator:\n");
    vout.general(vl, "  color spin   Nconv      diff           diff2\n");

    for (int icolor = 0; icolor < Nc; ++icolor) {
      for (int ispin = 0; ispin < Nd / 2; ++ispin) {
        source->set_t0(b, icolor, ispin);

        int idx = icolor + Nc * ispin;
        fprop_lex->invert_D(xq, b, Nconv, diff);

        Field_F y(b);
        fopr_smear->set_mode("D");

        fopr_smear->mult(y, xq);  // y  = fopr_w->mult(xq);
        axpy(y, -1.0, b);         // y -= b;
        diff2 = y.norm2();

        vout.general(vl, "   %2d   %2d   %6d   %12.4e   %12.4e\n",
                     icolor, ispin, Nconv, diff, diff2);

        H[idx] = xq;
        xq.set(0.0);
        Hpr[idx] = xq;
      }

      for (int ispin = Nd / 2; ispin < Nd; ++ispin) {
        source->set_tT(b, icolor, ispin);

        int idx = icolor + Nc * ispin;
        fprop_lex->invert_D(xq, b, Nconv, diff);

        Field_F y(b);
        fopr_smear->set_mode("D");

        fopr_smear->mult(y, xq);  // y  = fopr_w->mult(xq);
        axpy(y, -1.0, b);         // y -= b;
        diff2 = y.norm2();

        vout.general(vl, "   %2d   %2d   %6d   %12.4e   %12.4e\n",
                     icolor, ispin, Nconv, diff, diff2);

        Hpr[idx] = xq;
        xq.set(0.0);
        H[idx] = xq;
      }
    }

#if 0
    //For debug
    Index_lex index;
    for (int t = 0; t < 2; ++t) {
      int site = index.site(0, 0, 0, t);
      for (int c1 = 0; c1 < Nc; ++c1) {
        for (int c0 = 0; c0 < Nc; ++c0) {
          for (int s1 = 0; s1 < Nd; ++s1) {
            for (int s0 = 0; s0 < Nd; ++s0) {
              vout.general(vl, "H[%d,%d,%d,%d,%d]=%lf %lf\n",
                           t, c1, c0, s1, s0,
                           H[c0 + Nc * s0].cmp_r(c1, s1, site),
                           H[c0 + Nc * s0].cmp_i(c1, s1, site));
            }
          }
        }
      }
    }
    for (int t = 0; t < 2; ++t) {
      int site = index.site(0, 0, 0, t);
      for (int c1 = 0; c1 < Nc; ++c1) {
        for (int c0 = 0; c0 < Nc; ++c0) {
          for (int s1 = 0; s1 < Nd; ++s1) {
            for (int s0 = 0; s0 < Nd; ++s0) {
              vout.general(vl, "Hpr[%d,%d,%d,%d,%d]=%lf %lf\n",
                           t, c1, c0, s1, s0,
                           Hpr[c0 + Nc * s0].cmp_r(c1, s1, site),
                           Hpr[c0 + Nc * s0].cmp_i(c1, s1, site));
            }
          }
        }
      }
    }
#endif

    //- meson correlators
    vout.general(vl, "\n");
    vout.general(vl, "boundary 2-point correlator with SF BC:\n");

    Corr2pt_Wilson_SF corr(gmset);
    double            result = corr.fAfP(H, Hpr);

    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_SF_fAfP