u1casc-ordinary/obs_diagcorr.hpp

   1 #ifndef OBS_DIAGCORR_HPP
   2 #define OBS_DIAGCORR_HPP
   3
   4 #include "latlib/o815/o815.h"
   5
   6 #include "latlib/writeout.h"
   7
   8 #include "latlib/obstat.hpp"
   9
  10 #include <iostream>
  11 #include <complex>
  12
  13 #include <cmath>
  14
  15 #include <gsl/gsl_complex.h>
  16 #include <gsl/gsl_complex_math.h>
  17 #include <gsl/gsl_math.h>
  18 #include <gsl/gsl_eigen.h>
  19
  20 using namespace std;
  21
  22 class obs_diagcorr : public o815::obs {
  23
  24 public:
  25   obs_diagcorr(o815 *_O815);
  26
  27 private:
  28   void _start();
  29   void _meas(bool loadedobs, const int& nthmeas);
  30   void _finish();
  31
  32   void corrCompute();
  33   static complex<double> effMass(vector < complex<double> > *preCalculated, vector< complex<double> > *excludedMeas, int nmeas, void *para);
  34   static void preEffMass(vector< vector < complex<double> > > *allVals, vector < complex<double> > *preCalculated, void *para);
  35
  36   sim *Sim;
  37
  38   int spatialV;
  39
  40   complex<double> *OM[16+1];
  41
  42   gsl_matrix_complex ***measurements;
  43
  44   gsl_vector_complex **measurements_disco;
  45
  46   static void cdiag (gsl_vector *v, gsl_matrix_complex *m);
  47 };
  48
  49 obs_diagcorr::obs_diagcorr(o815 *_O815) : o815::obs("diagcorr",
  50                                                     _O815->paraQ->getParaNames() +
  51                                                     "tsep"
  52                                                     "...",
  53                                                     _O815, sizeof(complex<double>) * ( 16*_O815->comargs.lsize[1]/2 + 1*4 ) ) {
  54   for (int ivar = 0; ivar<16+1; ivar++)
  55     OM[ivar]  = (complex<double>*)( obsMem + ivar*sizeof(complex<double>)*( _O815->comargs.lsize[1]/2 ) );
  56
  57   Sim = (sim*)O815->Sim;
  58   spatialV = O815->comargs.lsize[0] * O815->comargs.lsize[0] * O815->comargs.lsize[0];
  59
  60   measurements = new gsl_matrix_complex**[O815->comargs.nmeas];
  61   for (int imeas = 0; imeas<O815->comargs.nmeas; imeas++) {
  62     measurements[imeas] = new gsl_matrix_complex*[_O815->comargs.lsize[1]/2];
  63     for (int itsep=0; itsep<_O815->comargs.lsize[1]/2; itsep++)
  64       measurements[imeas][itsep] = gsl_matrix_complex_alloc(4,4);
  65   }
  66
  67   measurements_disco = new gsl_vector_complex*[O815->comargs.nmeas];
  68   for (int imeas = 0; imeas<O815->comargs.nmeas; imeas++)
  69     measurements_disco[imeas] = gsl_vector_complex_alloc(4);
  70 }
  71
  72 void obs_diagcorr::_start() {
  73   //  *out << O815->comargs.nmeas << endl;
  74
  75   //*out << "OBS_test: start" << endl;
  76 };
  77
  78 void obs_diagcorr::_meas(bool loadedobs, const int& nthmeas) {
  79   if (!loadedobs)
  80     corrCompute();
  81
  82   for (int icorr=0; icorr<4; icorr++)
  83     for (int jcorr=0; jcorr<4; jcorr++)
  84       for (int itsep=0; itsep<O815->comargs.lsize[1]/2; itsep++) {
  85         gsl_matrix_complex_set(measurements[nthmeas][itsep], icorr, jcorr,
  86                                gsl_complex_rect( OM[icorr*4+jcorr][itsep].real(), OM[icorr*4+jcorr][itsep].imag() ));
  87       }
  88
  89   for (int icorr=0; icorr<4; icorr++) {
  90     gsl_vector_complex_set(measurements_disco[nthmeas], icorr,
  91                            gsl_complex_rect( OM[16][icorr].real(), OM[16][icorr].imag() ) );
  92   }
  93 };
  94
  95 void obs_diagcorr::cdiag (gsl_vector *v, gsl_matrix_complex *m)
  96 {
  97   gsl_eigen_herm_workspace *wspace = gsl_eigen_herm_alloc(100);
  98   gsl_eigen_herm(m, v, wspace);
  99   gsl_eigen_herm_free(wspace);
 100 }
 101
 102 void obs_diagcorr::_finish() {
 103   gsl_matrix_complex *totalval = gsl_matrix_complex_alloc(4,4);
 104   gsl_matrix_complex *tmpmatrix = gsl_matrix_complex_alloc(4,4);
 105   gsl_vector *tmpvec = gsl_vector_alloc(4);
 106   gsl_vector_complex *tmpvecc = gsl_vector_complex_alloc(4);
 107   gsl_vector *tmpvec2 = gsl_vector_alloc(4);
 108   gsl_vector *jackres = gsl_vector_alloc(4);
 109   gsl_vector *jackerrornorm = gsl_vector_alloc(4);
 110   gsl_vector_complex *totaldisco = gsl_vector_complex_alloc(4);
 111
 112   gsl_vector_complex_set_zero(totaldisco);
 113   for (int imeas=0; imeas<O815->comargs.nmeas; imeas++)
 114     gsl_vector_complex_add( totaldisco, measurements_disco[imeas] );
 115
 116   for (int itsep = 0; itsep < O815->comargs.lsize[1]/2; itsep++) {
 117     gsl_matrix_complex_set_zero(totalval);
 118     gsl_vector_set_zero(jackerrornorm);
 119
 120     for (int imeas=0; imeas<O815->comargs.nmeas; imeas++)
 121       gsl_matrix_complex_add( totalval, measurements[imeas][itsep] );
 122
 123     gsl_matrix_complex_memcpy (tmpmatrix, totalval);
 124     gsl_matrix_complex_scale (tmpmatrix, gsl_complex_rect(1.0/O815->comargs.nmeas, 0.0) );
 125     for (int icorr=0; icorr<4; icorr++)
 126       for (int jcorr=0; jcorr<4; jcorr++) {
 127         gsl_complex discopart = gsl_complex_mul( gsl_vector_complex_get(totaldisco, icorr),
 128                                                  gsl_complex_conjugate( gsl_vector_complex_get(totaldisco, jcorr) )
 129                                                  );
 130         discopart = gsl_complex_mul_real(discopart, pow(1.0/O815->comargs.nmeas,2));
 131         gsl_matrix_complex_set( tmpmatrix, icorr, jcorr,
 132                                 gsl_complex_sub( gsl_matrix_complex_get( tmpmatrix, icorr, jcorr ),
 133                                                  discopart
 134                                                  )
 135                                 );
 136       }
 137     cdiag(jackres, tmpmatrix);
 138
 139     for (int imeas=0; imeas<O815->comargs.nmeas; imeas++) {
 140       gsl_matrix_complex_memcpy (tmpmatrix, totalval);
 141       gsl_matrix_complex_sub (tmpmatrix, measurements[imeas][itsep]);
 142       gsl_matrix_complex_scale ( tmpmatrix, gsl_complex_rect(1.0/(O815->comargs.nmeas-1), 0.0) );
 143       gsl_vector_complex_memcpy( tmpvecc, totaldisco );
 144       gsl_vector_complex_sub( tmpvecc, measurements_disco[imeas] );
 145       for (int icorr=0; icorr<4; icorr++)
 146         for (int jcorr=0; jcorr<4; jcorr++) {
 147           gsl_complex discopart = gsl_complex_mul( gsl_vector_complex_get(tmpvecc, icorr),
 148                                                    gsl_complex_conjugate( gsl_vector_complex_get(tmpvecc, jcorr) )
 149                                                    );
 150           discopart = gsl_complex_mul_real(discopart, pow(1.0/(O815->comargs.nmeas-1),2));
 151           gsl_matrix_complex_set( tmpmatrix, icorr, jcorr,
 152                                   gsl_complex_sub( gsl_matrix_complex_get( tmpmatrix, icorr, jcorr ),
 153                                                    discopart
 154                                                    )
 155                                   );
 156         }
 157       cdiag(tmpvec, tmpmatrix);
 158       gsl_vector_sub(tmpvec, jackres);
 159       gsl_vector_memcpy(tmpvec2, tmpvec);
 160       gsl_vector_mul(tmpvec, tmpvec2);
 161       gsl_vector_add(jackerrornorm, tmpvec);
 162     }
 163     gsl_vector_scale( jackerrornorm,
 164                       (double)(O815->comargs.nmeas-1)/O815->comargs.nmeas );
 165
 166     *out << O815->paraQ->getParaVals();
 167     *out << "\t" << itsep;
 168     for (int iev = 0; iev < 4; iev++) {
 169       *out << "\t" << gsl_vector_get(jackres,iev)
 170            << "\t" << sqrt(gsl_vector_get(jackerrornorm,iev));
 171     }
 172     *out << endl;
 173   }
 174
 175   gsl_matrix_complex_free(totalval);
 176   gsl_matrix_complex_free(tmpmatrix);
 177   gsl_vector_free(tmpvec);
 178   gsl_vector_complex_free(tmpvecc);
 179   gsl_vector_free(tmpvec2);
 180   gsl_vector_free(jackres);
 181   gsl_vector_free(jackerrornorm);
 182   gsl_vector_complex_free(totaldisco);
 183 };
 184
 185 void obs_diagcorr::corrCompute()
 186 {
 187   complex<double> phislice[4][O815->comargs.lsize[1]];
 188
 189   for (int icorr=0; icorr<4; icorr++)
 190     OM[16][icorr] = 0;
 191
 192   for (int it = 0; it < O815->comargs.lsize[1]; it++) {
 193     for (int icorr=0; icorr<4; icorr++)
 194       phislice[icorr][it] = 0;
 195
 196     for (int ix = 0; ix < spatialV; ix++) {
 197       phislice[0][it] += conj(Sim->phi[ 0*Sim->lsize4 + it*spatialV + ix ]) * Sim->phi[ 0*Sim->lsize4 + it*spatialV + ix ];
 198       phislice[1][it] += Sim->phi[ 0*Sim->lsize4 + it*spatialV + ix ] * Sim->phi[ 1*Sim->lsize4 + it*spatialV + ix ];
 199       phislice[2][it] += conj(Sim->phi[ 0*Sim->lsize4 + it*spatialV + ix ]) * conj(Sim->phi[ 1*Sim->lsize4 + it*spatialV + ix ]);
 200       phislice[3][it] += conj(Sim->phi[ 1*Sim->lsize4 + it*spatialV + ix ]) * Sim->phi[ 1*Sim->lsize4 + it*spatialV + ix ];
 201     }
 202
 203     for (int icorr=0; icorr<4; icorr++) {
 204       phislice[icorr][it] /= spatialV;
 205       OM[16][icorr] += phislice[icorr][it];
 206     }
 207   }
 208
 209   for (int icorr = 0; icorr < 4; icorr++) {
 210     for (int jcorr = 0; jcorr < 4; jcorr++) {
 211       for (int itsep = 0; itsep < O815->comargs.lsize[1]/2; itsep++) {
 212         OM[icorr*4+jcorr][itsep] = 0;
 213
 214         for (int it = 0; it < O815->comargs.lsize[1]; it++)
 215           OM[icorr*4+jcorr][itsep] += phislice[icorr][ (it+itsep)%O815->comargs.lsize[1] ] * conj( phislice[jcorr][it] );
 216
 217         OM[icorr*4+jcorr][itsep] /= O815->comargs.lsize[1];
 218       }
 219     }
 220
 221     OM[16][icorr] /= O815->comargs.lsize[1];
 222   }
 223 }
 224
 225 #endif