t_mesplq.cc

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#include "chroma.h"
#include <iostream>
#include <cstdio>
 
 
using namespace Chroma;
 
int main(int argc, char *argv[])
{
  // Put the machine into a known state
  Chroma::initialize(&argc, &argv);
 
  // Setup the layout
  const int foo[] = {4,4,4,8};
  multi1d<int> nrow(Nd);
  nrow = foo;  // Use only Nd elements
  Layout::setLattSize(nrow);
  Layout::create();
 
  XMLFileWriter xml("t_mesplq.xml");
  push(xml, "t_mesplq");
 
  push(xml,"lattis");
  write(xml,"Nd", Nd);
  write(xml,"Nc", Nc);
  write(xml,"nrow", nrow);
  pop(xml);
 
  //! Example of calling a plaquette routine
  /*! NOTE: the STL is *not* used to hold gauge fields */
  multi1d<LatticeColorMatrix> u(Nd);
  Double w_plaq, s_plaq, t_plaq, link;
 
#if 1
  QDPIO::cout << "Start gaussian\n";
  for(int m=0; m < u.size(); ++m)
    gaussian(u[m]);
 
  // Reunitarize the gauge field
  for(int m=0; m < u.size(); ++m)
    reunit(u[m]);
#else
  {
    XMLReader gauge_xml;
    readSzin(gauge_xml, u, std::string("CFGIN"));
    xml << gauge_xml;
  }
 
  unitarityCheck(u);
#endif
 
  // Try out the plaquette routine
  MesPlq(u, w_plaq, s_plaq, t_plaq, link);
  QDPIO::cout << "w_plaq = " << w_plaq << std::endl;
  QDPIO::cout << "link = " << link << std::endl;
 
  // Test polyakov routine
  multi1d<DComplex> pollp(Nd);
  for(int mu = 0; mu < Nd; ++mu)
    polylp(u, pollp[mu], mu);
 
  // Write out the results
  push(xml,"Observables");
  write(xml,"w_plaq", w_plaq);
  write(xml,"link", link);
  write(xml,"pollp", pollp);
  pop(xml);
 
 
  // Test gauge invariance
  rgauge(u);
 
  MesPlq(u, w_plaq, s_plaq, t_plaq, link);
  for(int mu = 0; mu < Nd; ++mu)
    polylp(u, pollp[mu], mu);
 
  QDPIO::cout << "w_plaq = " << w_plaq << std::endl;
  QDPIO::cout << "link = " << link << std::endl;
 
  push(xml,"Observables_after_gt");
  write(xml,"w_plaq", w_plaq);
  write(xml,"link", link);
  write(xml,"pollp", pollp);
  pop(xml);
 
  pop(xml);
  xml.close();
 
  // Time to bolt
  Chroma::finalize();
 
  exit(0);
}