inline_make_source_ferm_w.cc

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/*! \file
 * \brief Inline construction of make_source for lattice fermions
 *
 * Construct source for propagator calculations
 */
 
#include "handle.h"
#include "meas/inline/hadron/inline_make_source_ferm_w.h"
#include "meas/inline/abs_inline_measurement_factory.h"
#include "meas/glue/mesplq.h"
#include "meas/sources/source_const_factory.h"
#include "meas/sources/source_const_aggregate.h"
 
#include "util/ft/sftmom.h"
#include "util/info/proginfo.h"
#include "util/info/unique_id.h"
#include "meas/inline/make_xml_file.h"
 
#include "meas/inline/io/named_objmap.h"
 
namespace Chroma 
{ 
  namespace InlineMakeSourceFermEnv 
  { 
    namespace
    {
      AbsInlineMeasurement* createMeasurement(XMLReader& xml_in, 
                                              const std::string& path) 
      {
        return new InlineMakeSourceFerm(InlineMakeSourceFermParams(xml_in, path));
      }
 
      //! Local registration flag
      bool registered = false;
    }
 
    const std::string name = "MAKE_SOURCE_FERM";
 
    //! Register all the factories
    bool registerAll() 
    {
      bool success = true; 
      if (! registered)
      {
        success &= QuarkSourceConstructionEnv::registerAll();
        success &= TheInlineMeasurementFactory::Instance().registerObject(name, createMeasurement);
        registered = true;
      }
      return success;
    }
  }
 
 
  //! MakeSourceFerm input
  void read(XMLReader& xml, const std::string& path, InlineMakeSourceFermParams::NamedObject_t& input)
  {
    XMLReader inputtop(xml, path);
 
    read(inputtop, "gauge_id", input.gauge_id);
    read(inputtop, "source_id", input.source_id);
  }
 
  //! MakeSourceFerm output
  void write(XMLWriter& xml, const std::string& path, const InlineMakeSourceFermParams::NamedObject_t& input)
  {
    push(xml, path);
 
    write(xml, "gauge_id", input.gauge_id);
    write(xml, "source_id", input.source_id);
 
    pop(xml);
  }
 
 
  // Param stuff
  InlineMakeSourceFermParams::InlineMakeSourceFermParams() { frequency = 0; }
 
  InlineMakeSourceFermParams::InlineMakeSourceFermParams(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);
 
      // Named object output location
      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 << std::endl;
      QDP_abort(1);
    }
  }
 
 
  //! Make source input
  void read(XMLReader& xml, const std::string& path, InlineMakeSourceFermParams& input)
  {
    InlineMakeSourceFermParams tmp(xml, path);
    input = tmp;
  }
 
  //! Make source output
  void write(XMLWriter& xml, const std::string& path, const InlineMakeSourceFermParams& input)
  {
    push(xml, path);
    
    // Parameters for source construction
    Chroma::write(xml, "Param", input.param);
 
    // Write out the buffer ids
    Chroma::write(xml, "NamedObject", input.named_obj);
 
    pop(xml);
  }
 
 
  // Function call
  void 
  InlineMakeSourceFerm::operator()(unsigned long update_no,
                                   XMLWriter& xml_out) 
  {
    // If xml file not empty, then use alternate
    if (params.xml_file != "")
    {
      std::string xml_file = makeXMLFileName(params.xml_file, update_no);
 
      push(xml_out, "make_source");
      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 
  InlineMakeSourceFerm::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 << InlineMakeSourceFermEnv::name << ": caught dynamic cast error" 
                  << std::endl;
      QDP_abort(1);
    }
    catch (const std::string& e) 
    {
      QDPIO::cerr << InlineMakeSourceFermEnv::name << ": std::map call failed: " << e 
                  << std::endl;
      QDP_abort(1);
    }
    const multi1d<LatticeColorMatrix>& u = 
      TheNamedObjMap::Instance().getData< multi1d<LatticeColorMatrix> >(params.named_obj.gauge_id);
 
    // Save the initial state of the RNG
    QDP::Seed ran_seed;
    QDP::RNG::savern(ran_seed);
 
    push(xml_out, "make_source");
    write(xml_out, "update_no", update_no);
 
    QDPIO::cout << InlineMakeSourceFermEnv::name << ": propagator source constructor" << std::endl;
 
    proginfo(xml_out);    // Print out basic program info
 
    // Current state of the seed
    write(xml_out, "RNG", ran_seed);
 
    // Write out the input
    write(xml_out, "Input", params);
 
    // Write out the config header
    write(xml_out, "Config_info", gauge_xml);
 
    // Calculate some gauge invariant observables just for info.
    MesPlq(xml_out, "Observables", u);
 
    //
    // Initialize source
    //
    LatticeFermion quark_source;
 
    try
    {
      std::istringstream  xml_s(params.param.source.xml);
      XMLReader  sourcetop(xml_s);
      QDPIO::cout << "Source = " << params.param.source.id << std::endl;
 
      Handle< QuarkSourceConstruction<LatticeFermion> >
        sourceConstruction(TheFermSourceConstructionFactory::Instance().createObject(params.param.source.id,
                                                                                     sourcetop,
                                                                                     params.param.source.path));
      quark_source = (*sourceConstruction)(u);
    }
    catch(const std::string& e) 
    {
      QDPIO::cerr << InlineMakeSourceFermEnv::name << ": Caught Exception creating source: " << e << std::endl;
      QDP_abort(1);
    }
 
 
    // Sanity check - write out the norm2 of the source in the Nd-1 direction.
    // Use this for any possible verification.
    {
      // Initialize the slow Fourier transform phases
      SftMom phases(0, true, Nd-1);
 
      multi1d<Double> source_corr = sumMulti(localNorm2(quark_source),
                                             phases.getSet());
 
      push(xml_out, "Source_correlator");
      write(xml_out, "source_corr", source_corr);
      pop(xml_out);
    }
 
 
    // Now write the source
    try
    {
      QDPIO::cout << "Attempt to update source" << std::endl;
 
      XMLBufferWriter file_xml;
      push(file_xml, "make_source");
      write(file_xml, "id", uniqueId());  // NOTE: new ID form
      pop(file_xml);
 
      XMLBufferWriter record_xml;
      push(record_xml, "MakeSource");
      write(record_xml, "PropSource", params.param);
      write(record_xml, "RNG", ran_seed);
      write(record_xml, "Config_info", gauge_xml);
      pop(record_xml);
    
      // Store the source
      TheNamedObjMap::Instance().create<LatticeFermion>(params.named_obj.source_id);
      TheNamedObjMap::Instance().getData<LatticeFermion>(params.named_obj.source_id) = quark_source;
      TheNamedObjMap::Instance().get(params.named_obj.source_id).setFileXML(file_xml);
      TheNamedObjMap::Instance().get(params.named_obj.source_id).setRecordXML(record_xml);
 
      QDPIO::cout << "Source successfully update" << std::endl;
    }
    catch (std::bad_cast)
    {
      QDPIO::cerr << InlineMakeSourceFermEnv::name << ": dynamic cast error" 
                  << std::endl;
      QDP_abort(1);
    }
    catch (const std::string& e) 
    {
      QDPIO::cerr << InlineMakeSourceFermEnv::name << ": error message: " << e << std::endl;
      QDP_abort(1);
    }
    
    pop(xml_out);  // make_source
 
//    // Reset the seed
//    QDP::RNG::setrn(ran_seed);
 
    snoop.stop();
    QDPIO::cout << InlineMakeSourceFermEnv::name << ": total time = "
                << snoop.getTimeInSeconds() 
                << " secs" << std::endl;
 
    QDPIO::cout << InlineMakeSourceFermEnv::name << ": ran successfully" << std::endl;
 
    END_CODE();
  } 
 
}