inline_heavyhadspec_w.cc

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// $Id: inline_heavyhadspec_w.cc,v 1.2 2008/11/04 18:43:57 edwards Exp $
/*! \file
 * \brief Inline construction of heavy hadron spectrum in SU(3)
 *
 */

#include "meas/inline/hadron/inline_heavyhadspec_w.h"
#include "meas/hadron/heavy_hadrons_su3_w.h"
#include "meas/inline/abs_inline_measurement_factory.h"
#include "meas/glue/mesplq.h"
#include "util/ft/sftmom.h"
#include "util/info/proginfo.h"
#include "io/param_io.h"
#include "io/qprop_io.h"
#include "meas/inline/make_xml_file.h"
#include "meas/inline/io/named_objmap.h"
#include "meas/smear/no_quark_displacement.h"

namespace Chroma 
{ 
  namespace InlineHeavyHadSpecEnv 
  { 
    namespace
    {
      AbsInlineMeasurement* createMeasurement(XMLReader& xml_in, 
                                              const std::string& path) 
      {
        return new InlineHeavyHadSpec(InlineHeavyHadSpecParams(xml_in, path));
      }

      //! Local registration flag
      bool registered = false;
    }

    const std::string name = "HEAVY_HADRON_SPECTRUM";

    //! Register all the factories
    bool registerAll() 
    {
      bool success = true; 
      if (! registered)
      {
        success &= TheInlineMeasurementFactory::Instance().registerObject(name, createMeasurement);
        registered = true;
      }
      return success;
    }
  }



  //! Reader for parameters
  void read(XMLReader& xml, const string& path, InlineHeavyHadSpecParams::Param_t& param)
  {
    XMLReader paramtop(xml, path);

    int version;
    read(paramtop, "version", version);

    switch (version) 
    {
    case 1:
      break;

    default:
      QDPIO::cerr << "Input parameter version " << version << " unsupported." << endl;
      QDP_abort(1);
    }

    read(paramtop, "time_rev", param.time_rev);

    read(paramtop, "mom2_max", param.mom2_max);
    read(paramtop, "avg_equiv_mom", param.avg_equiv_mom);
  }


  //! Writer for parameters
  void write(XMLWriter& xml, const string& path, const InlineHeavyHadSpecParams::Param_t& param)
  {
    push(xml, path);

    int version = 1;
    write(xml, "version", version);

    write(xml, "time_rev", param.time_rev);

    write(xml, "mom2_max", param.mom2_max);
    write(xml, "avg_equiv_mom", param.avg_equiv_mom);

    pop(xml);
  }


  //! Propagator input
  void read(XMLReader& xml, const string& path, InlineHeavyHadSpecParams::NamedObject_t::Props_t& input)
  {
    XMLReader inputtop(xml, path);

    read(inputtop, "first_id", input.first_id);
    read(inputtop, "second_id", input.second_id);
  }

  //! Propagator output
  void write(XMLWriter& xml, const string& path, const InlineHeavyHadSpecParams::NamedObject_t::Props_t& input)
  {
    push(xml, path);

    write(xml, "first_id", input.first_id);
    write(xml, "second_id", input.second_id);

    pop(xml);
  }


  //! Propagator input
  void read(XMLReader& xml, const string& path, InlineHeavyHadSpecParams::NamedObject_t& input)
  {
    XMLReader inputtop(xml, path);

    read(inputtop, "gauge_id", input.gauge_id);
    read(inputtop, "sink_pairs", input.sink_pairs);
  }

  //! Propagator output
  void write(XMLWriter& xml, const string& path, const InlineHeavyHadSpecParams::NamedObject_t& input)
  {
    push(xml, path);

    write(xml, "gauge_id", input.gauge_id);
    write(xml, "sink_pairs", input.sink_pairs);

    pop(xml);
  }


  // Param stuff
  InlineHeavyHadSpecParams::InlineHeavyHadSpecParams()
  { 
    frequency = 0; 
  }

  InlineHeavyHadSpecParams::InlineHeavyHadSpecParams(XMLReader& xml_in, const std::string& path) 
  {
    try 
    {
      XMLReader paramtop(xml_in, path);

      if (paramtop.count("Frequency") == 1)
        read(paramtop, "Frequency", frequency);
      else
        frequency = 1;

      // Parameters for source construction
      read(paramtop, "Param", param);

      // Read in the output propagator/source configuration info
      read(paramtop, "NamedObject", named_obj);

      // Possible alternate XML file pattern
      if (paramtop.count("xml_file") != 0) 
      {
        read(paramtop, "xml_file", xml_file);
      }
    }
    catch(const std::string& e) 
    {
      QDPIO::cerr << __func__ << ": Caught Exception reading XML: " << e << endl;
      QDP_abort(1);
    }
  }


  void
  InlineHeavyHadSpecParams::write(XMLWriter& xml_out, const std::string& path) 
  {
    push(xml_out, path);
    
    Chroma::write(xml_out, "Param", param);
    Chroma::write(xml_out, "NamedObject", named_obj);
    QDP::write(xml_out, "xml_file", xml_file);

    pop(xml_out);
  }



  // Anonymous namespace
  namespace 
  {
    //! Useful structure holding sink props
    struct SinkPropContainer_t
    {
      ForwardProp_t prop_header;
      string quark_propagator_id;
      Real Mass;
    
      multi1d<int> bc; 
    
      string source_type;
      string source_disp_type;
      string sink_type;
      string sink_disp_type;
    };


    //! Useful structure holding sink props
    struct AllSinkProps_t
    {
      SinkPropContainer_t  sink_prop_1;
      SinkPropContainer_t  sink_prop_2;
    };


    //! Read a sink prop
    void readSinkProp(SinkPropContainer_t& s, const std::string& id)
    {
      try
      {
        // Try a cast to see if it succeeds
        const LatticePropagator& foo = 
          TheNamedObjMap::Instance().getData<LatticePropagator>(id);

        // Snarf the data into a copy
        s.quark_propagator_id = id;
        
        // Snarf the prop info. This is will throw if the prop_id is not there
        XMLReader prop_file_xml, prop_record_xml;
        TheNamedObjMap::Instance().get(id).getFileXML(prop_file_xml);
        TheNamedObjMap::Instance().get(id).getRecordXML(prop_record_xml);
   
        // Try to invert this record XML into a ChromaProp struct
        // Also pull out the id of this source
        {
          string xpath;
          read(prop_record_xml, "/SinkSmear", s.prop_header);
          
          read(prop_record_xml, "/SinkSmear/PropSource/Source/SourceType", s.source_type);
          xpath = "/SinkSmear/PropSource/Source/Displacement/DisplacementType";
          if (prop_record_xml.count(xpath) != 0)
            read(prop_record_xml, xpath, s.source_disp_type);
          else
            s.source_disp_type = NoQuarkDisplacementEnv::getName();

          read(prop_record_xml, "/SinkSmear/PropSink/Sink/SinkType", s.sink_type);
          xpath = "/SinkSmear/PropSink/Sink/Displacement/DisplacementType";
          if (prop_record_xml.count(xpath) != 0)
            read(prop_record_xml, xpath, s.sink_disp_type);
          else
            s.sink_disp_type = NoQuarkDisplacementEnv::getName();
        }
      }
      catch( std::bad_cast ) 
      {
        QDPIO::cerr << InlineHeavyHadSpecEnv::name << ": caught dynamic cast error" 
                    << endl;
        QDP_abort(1);
      }
      catch (const string& e) 
      {
        QDPIO::cerr << InlineHeavyHadSpecEnv::name << ": error message: " << e 
                    << endl;
        QDP_abort(1);
      }


      // Derived from input prop
      // Hunt around to find the mass
      // NOTE: this may be problematic in the future if actions are used with no
      // clear def. of a Mass
      QDPIO::cout << "Try action and mass" << endl;
      s.Mass = getMass(s.prop_header.prop_header.fermact);

      // Only baryons care about boundaries
      // Try to find them. If not present, assume dirichlet.
      // This turns off any attempt to time reverse which is the
      // only thing that the BC are affecting.
      s.bc.resize(Nd);
      s.bc = 0;
    
      try
      {
        s.bc = getFermActBoundary(s.prop_header.prop_header.fermact);
      }
      catch (const string& e) 
      {
        QDPIO::cerr << InlineHeavyHadSpecEnv::name 
                    << ": caught exception. No BC found in these headers. Will assume dirichlet: " << e 
                    << endl;
      }

      QDPIO::cout << "FermAct = " << s.prop_header.prop_header.fermact.id << endl;
      QDPIO::cout << "Mass = " << s.Mass << endl;
    }


    //! Read all sinks
    void readAllSinks(AllSinkProps_t& s, 
                      InlineHeavyHadSpecParams::NamedObject_t::Props_t sink_pair)
    {
      QDPIO::cout << "Attempt to parse forward propagator = " << sink_pair.first_id << endl;
      readSinkProp(s.sink_prop_1, sink_pair.first_id);
      QDPIO::cout << "Forward propagator successfully parsed" << endl;

      QDPIO::cout << "Attempt to parse forward propagator = " << sink_pair.second_id << endl;
      readSinkProp(s.sink_prop_2, sink_pair.second_id);
      QDPIO::cout << "Forward propagator successfully parsed" << endl;
    }

  } // namespace anonymous



  // Function call
  void 
  InlineHeavyHadSpec::operator()(unsigned long update_no,
                            XMLWriter& xml_out) 
  {
    // If xml file not empty, then use alternate
    if (params.xml_file != "")
    {
      string xml_file = makeXMLFileName(params.xml_file, update_no);

      push(xml_out, "heavyhadspec");
      write(xml_out, "update_no", update_no);
      write(xml_out, "xml_file", xml_file);
      pop(xml_out);

      XMLFileWriter xml(xml_file);
      func(update_no, xml);
    }
    else
    {
      func(update_no, xml_out);
    }
  }


  // Real work done here
  void 
  InlineHeavyHadSpec::func(unsigned long update_no,
                      XMLWriter& xml_out) 
  {
    START_CODE();

    StopWatch snoop;
    snoop.reset();
    snoop.start();

    // Test and grab a reference to the gauge field
    XMLBufferWriter gauge_xml;
    try
    {
      TheNamedObjMap::Instance().getData< multi1d<LatticeColorMatrix> >(params.named_obj.gauge_id);
      TheNamedObjMap::Instance().get(params.named_obj.gauge_id).getRecordXML(gauge_xml);
    }
    catch( std::bad_cast ) 
    {
      QDPIO::cerr << InlineHeavyHadSpecEnv::name << ": caught dynamic cast error" 
                  << endl;
      QDP_abort(1);
    }
    catch (const string& e) 
    {
      QDPIO::cerr << InlineHeavyHadSpecEnv::name << ": map call failed: " << e 
                  << endl;
      QDP_abort(1);
    }
    const multi1d<LatticeColorMatrix>& u = 
      TheNamedObjMap::Instance().getData< multi1d<LatticeColorMatrix> >(params.named_obj.gauge_id);

    push(xml_out, "heavyhadspec");
    write(xml_out, "update_no", update_no);

    QDPIO::cout << " HEAVYHADSPEC: SU(3) heavy hadron spectroscopy for Wilson-like fermions" << endl;
    QDPIO::cout << endl << "     Gauge group: SU(" << Nc << ")" << endl;
    QDPIO::cout << "     volume: " << Layout::lattSize()[0];
    for (int i=1; i<Nd; ++i) {
      QDPIO::cout << " x " << Layout::lattSize()[i];
    }
    QDPIO::cout << endl;

    proginfo(xml_out);    // Print out basic program info

    // Write out the input
    params.write(xml_out, "Input");

    // Write out the config info
    write(xml_out, "Config_info", gauge_xml);

    push(xml_out, "Output_version");
    write(xml_out, "out_version", 15);
    pop(xml_out);


    // First calculate some gauge invariant observables just for info.
    MesPlq(xml_out, "Observables", u);

    // Keep an array of all the xml output buffers
    push(xml_out, "Wilson_hadron_measurements");

    // Now loop over the various fermion pairs
    for(int lpair=0; lpair < params.named_obj.sink_pairs.size(); ++lpair)
    {
      const InlineHeavyHadSpecParams::NamedObject_t::Props_t named_obj = params.named_obj.sink_pairs[lpair];

      push(xml_out, "elem");

      AllSinkProps_t all_sinks;
      readAllSinks(all_sinks, named_obj);

      // Derived from input prop
      multi1d<int> t_srce
                  = all_sinks.sink_prop_1.prop_header.source_header.getTSrce();
      int j_decay = all_sinks.sink_prop_1.prop_header.source_header.j_decay;
      int t0      = all_sinks.sink_prop_1.prop_header.source_header.t_source;

      // Sanity checks
      {
        if (all_sinks.sink_prop_2.prop_header.source_header.j_decay != j_decay)
        {
          QDPIO::cerr << "Error!! j_decay must be the same for all propagators " << endl;
          QDP_abort(1);
        }
        if (all_sinks.sink_prop_2.prop_header.source_header.t_source != 
            all_sinks.sink_prop_1.prop_header.source_header.t_source)
        {
          QDPIO::cerr << "Error!! t_source must be the same for all propagators " << endl;
          QDP_abort(1);
        }
        if (all_sinks.sink_prop_1.source_type != all_sinks.sink_prop_2.source_type)
        {
          QDPIO::cerr << "Error!! source_type must be the same in a pair " << endl;
          QDP_abort(1);
        }
        if (all_sinks.sink_prop_1.sink_type != all_sinks.sink_prop_2.sink_type)
        {
          QDPIO::cerr << "Error!! source_type must be the same in a pair " << endl;
          QDP_abort(1);
        }
      }

      // Only baryons care about bc
      int bc_spec = 0;
      bc_spec = all_sinks.sink_prop_1.bc[j_decay] ;
      if (all_sinks.sink_prop_2.bc[j_decay] != bc_spec)
        {
          QDPIO::cerr << "Error!! bc must be the same for all propagators " << endl;
          QDP_abort(1);
        }
      


      // Initialize the slow Fourier transform phases
      SftMom phases(params.param.mom2_max, t_srce, params.param.avg_equiv_mom,
                    j_decay);

      // Keep a copy of the phases with NO momenta
      SftMom phases_nomom(0, true, j_decay);

      // Masses
      write(xml_out, "Mass_1", all_sinks.sink_prop_1.Mass);
      write(xml_out, "Mass_2", all_sinks.sink_prop_2.Mass);
      write(xml_out, "t0", t0);

      // Save prop input
      push(xml_out, "Forward_prop_headers");
      write(xml_out, "First_forward_prop", all_sinks.sink_prop_1.prop_header);
      write(xml_out, "Second_forward_prop", all_sinks.sink_prop_2.prop_header);
      pop(xml_out);

      // Sanity check - write out the norm2 of the forward prop in the j_decay direction
      // Use this for any possible verification
      push(xml_out, "Forward_prop_correlator");
      {
        const LatticePropagator& sink_prop_1 = 
          TheNamedObjMap::Instance().getData<LatticePropagator>(all_sinks.sink_prop_1.quark_propagator_id);
        const LatticePropagator& sink_prop_2 = 
          TheNamedObjMap::Instance().getData<LatticePropagator>(all_sinks.sink_prop_2.quark_propagator_id);

        write(xml_out, "forward_prop_corr_1", sumMulti(localNorm2(sink_prop_1), phases.getSet()));
        write(xml_out, "forward_prop_corr_2", sumMulti(localNorm2(sink_prop_2), phases.getSet()));
      }
      pop(xml_out);


      push(xml_out, "SourceSinkType");
      {
        QDPIO::cout << "Source_type_1 = " << all_sinks.sink_prop_1.source_type << endl;
        QDPIO::cout << "Sink_type_1 = " << all_sinks.sink_prop_1.sink_type << endl;
        QDPIO::cout << "Source_type_2 = " << all_sinks.sink_prop_2.source_type << endl;
        QDPIO::cout << "Sink_type_2 = " << all_sinks.sink_prop_2.sink_type << endl;

        write(xml_out, "source_type_1", all_sinks.sink_prop_1.source_type);
        write(xml_out, "source_disp_type_1", all_sinks.sink_prop_1.source_disp_type);
        write(xml_out, "sink_type_1", all_sinks.sink_prop_1.sink_type);
        write(xml_out, "sink_disp_type_1", all_sinks.sink_prop_1.sink_disp_type);

        write(xml_out, "source_type_2", all_sinks.sink_prop_2.source_type);
        write(xml_out, "source_disp_type_2", all_sinks.sink_prop_2.source_disp_type);
        write(xml_out, "sink_type_2", all_sinks.sink_prop_2.sink_type);
        write(xml_out, "sink_disp_type_2", all_sinks.sink_prop_2.sink_disp_type);
      }
      pop(xml_out);


      // References for use later
      const LatticePropagator& sink_prop_1 = 
        TheNamedObjMap::Instance().getData<LatticePropagator>(all_sinks.sink_prop_1.quark_propagator_id);
      const LatticePropagator& sink_prop_2 = 
        TheNamedObjMap::Instance().getData<LatticePropagator>(all_sinks.sink_prop_2.quark_propagator_id);


      // Construct group name for output
      string src_type;
      if (all_sinks.sink_prop_1.source_type == "POINT_SOURCE")
        src_type = "Point";
      else if (all_sinks.sink_prop_1.source_type == "SF_POINT_SOURCE")
        src_type = "Point";
      else if (all_sinks.sink_prop_1.source_type == "SHELL_SOURCE")
        src_type = "Shell";
      else if (all_sinks.sink_prop_1.source_type == "SF_SHELL_SOURCE")
        src_type = "Shell";
      else if (all_sinks.sink_prop_1.source_type == "WALL_SOURCE")
        src_type = "Wall";
      else if (all_sinks.sink_prop_1.source_type == "SF_WALL_SOURCE")
        src_type = "Wall";
      else
      {
        QDPIO::cerr << "Unsupported source type = " << all_sinks.sink_prop_1.source_type << endl;
        QDP_abort(1);
      }

      string snk_type;
      if (all_sinks.sink_prop_1.sink_type == "POINT_SINK")
        snk_type = "Point";
      else if (all_sinks.sink_prop_1.sink_type == "SHELL_SINK")
        snk_type = "Shell";
      else if (all_sinks.sink_prop_1.sink_type == "WALL_SINK")
        snk_type = "Wall";
      else
      {
        QDPIO::cerr << "Unsupported sink type = " << all_sinks.sink_prop_1.sink_type << endl;
        QDP_abort(1);
      }

      string source_sink_type = src_type + "_" + snk_type;
      QDPIO::cout << "Source type = " << src_type << endl;
      QDPIO::cout << "Sink type = "   << snk_type << endl;

      
      static_light_su3(u, sink_prop_1, sink_prop_2, t_srce,
                       phases_nomom,xml_out, 
                       source_sink_type + "_Heavy_Hadrons_SU3");
        
      pop(xml_out);  // array element
    }
    pop(xml_out);  // Wilson_spectroscopy
    pop(xml_out);  // heavyhadspec

    snoop.stop();
    QDPIO::cout << InlineHeavyHadSpecEnv::name << ": total time = "
                << snoop.getTimeInSeconds() 
                << " secs" << endl;

    QDPIO::cout << InlineHeavyHadSpecEnv::name << ": ran successfully" << endl;

    END_CODE();
  } 

};

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