/benchmarks/tensors/dibaryon/reference/qblocks_2pt.c

https://github.com/Tiramisu-Compiler/tiramisu · C · 1533 lines · 1447 code · 42 blank · 44 comment · 264 complexity · 89bec7f30e4698cf7bc6e3ff1caf59a3 MD5 · raw file

Large files are truncated click here to view the full file

    

  1. #include <stdio.h> 
    2. 

  2. #include <stdlib.h>
    3. 

  3. #include <complex.h>
    4. 

  4. #include <math.h>
    5. 

  5. #include <time.h>
    6. 

  6. #include <sys/time.h>
    7. 

  7. 

  8. #include "qblocks_2pt.h"                                       /* DEPS */
    9. 

  9. #include "tiramisu_wrapper.h"
    10. 

  10. 

  11. /* index functions */
    12. 

  12. int index_2d(int a, int b, int length2) {
    13. 

  13.    return b +length2*( a );
    14. 

  14. }
    15. 

  15. int index_3d(int a, int b, int c, int length2, int length3) {
    16. 

  16.    return c +length3*( b +length2*( a ));
    17. 

  17. }
    18. 

  18. int index_4d(int a, int b, int c, int d, int length2, int length3, int length4) {
    19. 

  19.    return d +length4*( c +length3*( b +length2*( a )));
    20. 

  20. }
    21. 

  21. int prop_index(int q, int t, int c1, int s1, int c2, int s2, int y, int x, int Nc, int Ns, int Vsrc, int Vsnk, int Nt) {
    22. 

  22.    //return x +Vsnk*( y +Vsrc*( s2 +Ns*( c2 +Nc*( s1 +Ns*( c1 +Nc*( t +Nt* q ))))));
    23. 

  23.    return y +Vsrc*( x +Vsnk*( s1 +Ns*( c1 +Nc*( s2 +Ns*( c2 +Nc*( t +Nt* q ))))));
    24. 

  24. }
    25. 

  25. int Q_index(int t, int c1, int s1, int c2, int s2, int x1, int c3, int s3, int y, int Nc, int Ns, int Vsrc, int Vsnk) {
    26. 

  26.    return y +Vsrc*( s3 +Ns*( c3 +Nc*( x1 +Vsnk*( s2 +Ns*( c2 +Nc*( s1 +Ns*( c1 +Nc*( t ))))))));
    27. 

  27. }
    28. 

  28. int Blocal_index(int t, int c1, int s1, int c2, int s2, int x, int c3, int s3, int m, int Nc, int Ns, int Vsnk, int Nsrc) {
    29. 

  29.    return m +Nsrc*( s3 +Ns*( c3 +Nc*( x +Vsnk*( s2 +Ns*( c2 +Nc*( s1 +Ns*( c1 +Nc*( t ))))))));
    30. 

  30. }
    31. 

  31. int Bdouble_index(int t, int c1, int s1, int c2, int s2, int x1, int c3, int s3, int x2, int m, int Nc, int Ns, int Vsnk, int Nsrc) {
    32. 

  32.    return m +Nsrc*( x2 +Vsnk*(  s3 +Ns*( c3 +Nc*( x1 +Vsnk*( s2 +Ns*( c2 +Nc*( s1 +Ns*( c1 +Nc*( t )))))))));
    33. 

  33. }
    34. 

  34. 

  35. void error_msg(char *msg)
    36. 

  36. {
    37. 

  37.     printf("\n\033[1;31mError! %s.\033[0m\n", msg);
    38. 

  38.     exit(1);
    39. 

  39. }
    40. 

  40. 

  41. double rtclock()
    42. 

  42. {
    43. 

  43.     struct timeval Tp;
    44. 

  44.     gettimeofday(&Tp, NULL);
    45. 

  45. 

  46.     return (Tp.tv_sec + Tp.tv_usec * 1.0e-6);
    47. 

  47. }
    48. 

  48. 

  49. void make_local_block(double* Blocal_re, 
    50. 

  50.     double* Blocal_im, 
    51. 

  51.     const double* prop_re,
    52. 

  52.     const double* prop_im, 
    53. 

  53.     const int* color_weights, 
    54. 

  54.     const int* spin_weights, 
    55. 

  55.     const double* weights, 
    56. 

  56.     const double* psi_re, 
    57. 

  57.     const double* psi_im,
    58. 

  58.     const int Nc,
    59. 

  59.     const int Ns,
    60. 

  60.     const int Vsrc,
    61. 

  61.     const int Vsnk,
    62. 

  62.     const int Nt,
    63. 

  63.     const int Nw,
    64. 

  64.     const int Nq,
    65. 

  65.     const int Nsrc) {
    66. 

  66.    /* loop indices */
    67. 

  67.    int iCprime, iSprime, jCprime, jSprime, kCprime, kSprime, iC, iS, jC, jS, kC, kS, x, t, y, wnum, m;
    68. 

  68.    /* subexpressions */
    69. 

  69.    double prop_prod_02_re;
    70. 

  70.    double prop_prod_02_im;
    71. 

  71.    double prop_prod_re;
    72. 

  72.    double prop_prod_im;
    73. 

  73.    /* initialize */
    74. 

  74.    for (t=0; t<Nt; t++) {
    75. 

  75.       for (iCprime=0; iCprime<Nc; iCprime++) {
    76. 

  76.          for (iSprime=0; iSprime<Ns; iSprime++) {
    77. 

  77.             for (kCprime=0; kCprime<Nc; kCprime++) {
    78. 

  78.                for (kSprime=0; kSprime<Ns; kSprime++) {
    79. 

  79.                   for (x=0; x<Vsnk; x++) {
    80. 

  80.                      for (jCprime=0; jCprime<Nc; jCprime++) {
    81. 

  81.                         for (jSprime=0; jSprime<Ns; jSprime++) {
    82. 

  82.                            for (m=0; m<Nsrc; m++) {
    83. 

  83.                               Blocal_re[Blocal_index(t,iCprime,iSprime,kCprime,kSprime,x,jCprime,jSprime,m ,Nc,Ns,Vsnk,Nsrc)] = 0.0;
    84. 

  84.                               Blocal_im[Blocal_index(t,iCprime,iSprime,kCprime,kSprime,x,jCprime,jSprime,m ,Nc,Ns,Vsnk,Nsrc)] = 0.0;
    85. 

  85.                            }
    86. 

  86.                         }
    87. 

  87.                      }
    88. 

  88.                   }
    89. 

  89.                }
    90. 

  90.             }
    91. 

  91.          }
    92. 

  92.       }
    93. 

  93.    }
    94. 

  94.    /* build local (no quark exchange) block */
    95. 

  95.    for (wnum=0; wnum<Nw; wnum++) {
    96. 

  96.       iC = color_weights[index_2d(wnum,0, Nq)];
    97. 

  97.       iS = spin_weights[index_2d(wnum,0, Nq)];
    98. 

  98.       jC = color_weights[index_2d(wnum,1, Nq)];
    99. 

  99.       jS = spin_weights[index_2d(wnum,1, Nq)];
    100. 

  100.       kC = color_weights[index_2d(wnum,2, Nq)];
    101. 

  101.       kS = spin_weights[index_2d(wnum,2, Nq)];
    102. 

  102.       for (t=0; t<Nt; t++) {
    103. 

  103.          for (iCprime=0; iCprime<Nc; iCprime++) {
    104. 

  104.             for (iSprime=0; iSprime<Ns; iSprime++) {
    105. 

  105.                for (kCprime=0; kCprime<Nc; kCprime++) {
    106. 

  106.                   for (kSprime=0; kSprime<Ns; kSprime++) {
    107. 

  107.                      for (x=0; x<Vsnk; x++) {
    108. 

  108.                         for (y=0; y<Vsrc; y++) {
    109. 

  109.                            prop_prod_02_re = weights[wnum] * ( (prop_re[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - prop_im[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) - (prop_re[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - prop_im[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) );
    110. 

  110.                            prop_prod_02_im = weights[wnum] * ( (prop_re[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + prop_im[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) - (prop_re[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + prop_im[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) );
    111. 

  111.                            for (jCprime=0; jCprime<Nc; jCprime++) {
    112. 

  112.                               for (jSprime=0; jSprime<Ns; jSprime++) {
    113. 

  113.                                  prop_prod_re = prop_prod_02_re * prop_re[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - prop_prod_02_im * prop_im[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)];
    114. 

  114.                                  prop_prod_im = prop_prod_02_re * prop_im[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + prop_prod_02_im * prop_re[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)];
    115. 

  115.                                  for (m=0; m<Nsrc; m++) {
    116. 

  116.                                     Blocal_re[Blocal_index(t,iCprime,iSprime,kCprime,kSprime,x,jCprime,jSprime,m ,Nc,Ns,Vsnk,Nsrc)] += psi_re[index_2d(y,m ,Nsrc)] * prop_prod_re - psi_im[index_2d(y,m ,Nsrc)] * prop_prod_im;
    117. 

  117.                                     Blocal_im[Blocal_index(t,iCprime,iSprime,kCprime,kSprime,x,jCprime,jSprime,m ,Nc,Ns,Vsnk,Nsrc)] += psi_re[index_2d(y,m ,Nsrc)] * prop_prod_im + psi_im[index_2d(y,m ,Nsrc)] * prop_prod_re;
    118. 

  118.                                  }
    119. 

  119.                               }
    120. 

  120.                            }
    121. 

  121.                         }
    122. 

  122.                      }
    123. 

  123.                   }
    124. 

  124.                }
    125. 

  125.             }
    126. 

  126.          }
    127. 

  127.       }
    128. 

  128.    }
    129. 

  129. }
    130. 

  130. 

  131. void make_local_snk_block(double* Blocal_re, 
    132. 

  132.     double* Blocal_im, 
    133. 

  133.     const double* prop_re,
    134. 

  134.     const double* prop_im, 
    135. 

  135.     const int* color_weights, 
    136. 

  136.     const int* spin_weights, 
    137. 

  137.     const double* weights, 
    138. 

  138.     const double* psi_re, 
    139. 

  139.     const double* psi_im,
    140. 

  140.     const int Nc,
    141. 

  141.     const int Ns,
    142. 

  142.     const int Vsrc,
    143. 

  143.     const int Vsnk,
    144. 

  144.     const int Nt,
    145. 

  145.     const int Nw,
    146. 

  146.     const int Nq,
    147. 

  147.     const int Nsnk) {
    148. 

  148.    /* loop indices */
    149. 

  149.    int iCprime, iSprime, jCprime, jSprime, kCprime, kSprime, iC, iS, jC, jS, kC, kS, x, t, y, wnum, n;
    150. 

  150.    /* subexpressions */
    151. 

  151.    double prop_prod_02_re;
    152. 

  152.    double prop_prod_02_im;
    153. 

  153.    double prop_prod_re;
    154. 

  154.    double prop_prod_im;
    155. 

  155.    /* initialize */
    156. 

  156.    for (t=0; t<Nt; t++) {
    157. 

  157.       for (iCprime=0; iCprime<Nc; iCprime++) {
    158. 

  158.          for (iSprime=0; iSprime<Ns; iSprime++) {
    159. 

  159.             for (kCprime=0; kCprime<Nc; kCprime++) {
    160. 

  160.                for (kSprime=0; kSprime<Ns; kSprime++) {
    161. 

  161.                   for (y=0; y<Vsrc; y++) {
    162. 

  162.                      for (jCprime=0; jCprime<Nc; jCprime++) {
    163. 

  163.                         for (jSprime=0; jSprime<Ns; jSprime++) {
    164. 

  164.                            for (n=0; n<Nsnk; n++) {
    165. 

  165.                               Blocal_re[Blocal_index(t,iCprime,iSprime,kCprime,kSprime,y,jCprime,jSprime,n ,Nc,Ns,Vsrc,Nsnk)] = 0.0;
    166. 

  166.                               Blocal_im[Blocal_index(t,iCprime,iSprime,kCprime,kSprime,y,jCprime,jSprime,n ,Nc,Ns,Vsrc,Nsnk)] = 0.0;
    167. 

  167.                            }
    168. 

  168.                         }
    169. 

  169.                      }
    170. 

  170.                   }
    171. 

  171.                }
    172. 

  172.             }
    173. 

  173.          }
    174. 

  174.       }
    175. 

  175.    }
    176. 

  176.    /* build local (no quark exchange) block */
    177. 

  177.    for (wnum=0; wnum<Nw; wnum++) {
    178. 

  178.       iC = color_weights[index_2d(wnum,0, Nq)];
    179. 

  179.       iS = spin_weights[index_2d(wnum,0, Nq)];
    180. 

  180.       jC = color_weights[index_2d(wnum,1, Nq)];
    181. 

  181.       jS = spin_weights[index_2d(wnum,1, Nq)];
    182. 

  182.       kC = color_weights[index_2d(wnum,2, Nq)];
    183. 

  183.       kS = spin_weights[index_2d(wnum,2, Nq)];
    184. 

  184.       for (t=0; t<Nt; t++) {
    185. 

  185.          for (iCprime=0; iCprime<Nc; iCprime++) {
    186. 

  186.             for (iSprime=0; iSprime<Ns; iSprime++) {
    187. 

  187.                for (kCprime=0; kCprime<Nc; kCprime++) {
    188. 

  188.                   for (kSprime=0; kSprime<Ns; kSprime++) {
    189. 

  189.                      for (y=0; y<Vsrc; y++) {
    190. 

  190.                         for (x=0; x<Vsnk; x++) {
    191. 

  191.                            prop_prod_02_re = weights[wnum] * ( (prop_re[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - prop_im[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) - (prop_re[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - prop_im[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) );
    192. 

  192.                            prop_prod_02_im = weights[wnum] * ( (prop_re[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + prop_im[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) - (prop_re[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + prop_im[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) );
    193. 

  193.                            for (jCprime=0; jCprime<Nc; jCprime++) {
    194. 

  194.                               for (jSprime=0; jSprime<Ns; jSprime++) {
    195. 

  195.                                  prop_prod_re = prop_prod_02_re * prop_re[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - prop_prod_02_im * prop_im[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)];
    196. 

  196.                                  prop_prod_im = prop_prod_02_re * prop_im[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + prop_prod_02_im * prop_re[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)];
    197. 

  197.                                  for (n=0; n<Nsnk; n++) {
    198. 

  198.                                     Blocal_re[Blocal_index(t,iCprime,iSprime,kCprime,kSprime,y,jCprime,jSprime,n ,Nc,Ns,Vsrc,Nsnk)] += psi_re[index_2d(x,n ,Nsnk)] * prop_prod_re - psi_im[index_2d(x,n ,Nsnk)] * prop_prod_im;
    199. 

  199.                                     Blocal_im[Blocal_index(t,iCprime,iSprime,kCprime,kSprime,y,jCprime,jSprime,n ,Nc,Ns,Vsrc,Nsnk)] += psi_re[index_2d(x,n ,Nsnk)] * prop_prod_im + psi_im[index_2d(x,n ,Nsnk)] * prop_prod_re;
    200. 

  200.                                  }
    201. 

  201.                               }
    202. 

  202.                            }
    203. 

  203.                         }
    204. 

  204.                      }
    205. 

  205.                   }
    206. 

  206.                }
    207. 

  207.             }
    208. 

  208.          }
    209. 

  209.       }
    210. 

  210.    }
    211. 

  211. }
    212. 

  212. 

  213. void make_single_block(double* Bsingle_re, 
    214. 

  214.     double* Bsingle_im, 
    215. 

  215.     const double* prop_re,
    216. 

  216.     const double* prop_im, 
    217. 

  217.     const int* color_weights, 
    218. 

  218.     const int* spin_weights, 
    219. 

  219.     const double* weights, 
    220. 

  220.     const double* psi_re,
    221. 

  221.     const double* psi_im,
    222. 

  222.     const int Nc,
    223. 

  223.     const int Ns,
    224. 

  224.     const int Vsrc,
    225. 

  225.     const int Vsnk,
    226. 

  226.     const int Nt,
    227. 

  227.     const int Nw,
    228. 

  228.     const int Nq,
    229. 

  229.     const int Nsrc) {
    230. 

  230.    /* indices */
    231. 

  231.    int iCprime, iSprime, jCprime, jSprime, kCprime, kSprime, iC, iS, jC, jS, kC, kS, x, x1, x2, t, y, wnum, m;
    232. 

  232.    /* subexpressions */
    233. 

  233.    double prop_prod_re;
    234. 

  234.    double prop_prod_im;
    235. 

  235.    double* Q02_re = malloc(Nt * Nc * Ns * Nc * Ns * Vsnk * Nc * Ns * Vsrc * sizeof (double));
    236. 

  236.    double* Q02_im = malloc(Nt * Nc * Ns * Nc * Ns * Vsnk * Nc * Ns * Vsrc * sizeof (double));
    237. 

  237.    /* initialize */
    238. 

  238.    for (t=0; t<Nt; t++) {
    239. 

  239.       for (iCprime=0; iCprime<Nc; iCprime++) {
    240. 

  240.          for (iSprime=0; iSprime<Ns; iSprime++) {
    241. 

  241.             for (kCprime=0; kCprime<Nc; kCprime++) {
    242. 

  242.                for (kSprime=0; kSprime<Ns; kSprime++) {
    243. 

  243.                   for (x1=0; x1<Vsnk; x1++) {
    244. 

  244.                      for (m=0; m<Nsrc; m++) {
    245. 

  245.                         for (jCprime=0; jCprime<Nc; jCprime++) {
    246. 

  246.                            for (jSprime=0; jSprime<Ns; jSprime++) {
    247. 

  247.                               for (x2=0; x2<Vsnk; x2++) {
    248. 

  248.                                  Bsingle_re[Bdouble_index(t,iCprime,iSprime,kCprime,kSprime,x1,jCprime,jSprime,x2,m ,Nc,Ns,Vsnk,Nsrc)] = 0.0;
    249. 

  249.                                  Bsingle_im[Bdouble_index(t,iCprime,iSprime,kCprime,kSprime,x1,jCprime,jSprime,x2,m ,Nc,Ns,Vsnk,Nsrc)] = 0.0;
    250. 

  250.                               }
    251. 

  251.                            }
    252. 

  252.                         }
    253. 

  253.                      }
    254. 

  254.                      for (jC=0; jC<Nc; jC++) {
    255. 

  255.                         for (jS=0; jS<Ns; jS++) {
    256. 

  256.                            for (y=0; y<Vsrc; y++) {
    257. 

  257.                               Q02_re[Q_index(t,iCprime,iSprime,kCprime,kSprime,x1,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] = 0.0;
    258. 

  258.                               Q02_im[Q_index(t,iCprime,iSprime,kCprime,kSprime,x1,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] = 0.0;
    259. 

  259.                            }
    260. 

  260.                         }
    261. 

  261.                      }
    262. 

  262.                   }
    263. 

  263.                }
    264. 

  264.             }
    265. 

  265.          }
    266. 

  266.       }
    267. 

  267.    }
    268. 

  268.    /* build diquarks */
    269. 

  269.    for (wnum=0; wnum<Nw; wnum++) {
    270. 

  270.       iC = color_weights[index_2d(wnum,0, Nq)];
    271. 

  271.       iS = spin_weights[index_2d(wnum,0, Nq)];
    272. 

  272.       jC = color_weights[index_2d(wnum,1, Nq)];
    273. 

  273.       jS = spin_weights[index_2d(wnum,1, Nq)];
    274. 

  274.       kC = color_weights[index_2d(wnum,2, Nq)];
    275. 

  275.       kS = spin_weights[index_2d(wnum,2, Nq)];
    276. 

  276.       for (t=0; t<Nt; t++) {
    277. 

  277.          for (iCprime=0; iCprime<Nc; iCprime++) {
    278. 

  278.             for (iSprime=0; iSprime<Ns; iSprime++) {
    279. 

  279.                for (kCprime=0; kCprime<Nc; kCprime++) {
    280. 

  280.                   for (kSprime=0; kSprime<Ns; kSprime++) {
    281. 

  281.                      for (y=0; y<Vsrc; y++) {
    282. 

  282.                         for (x=0; x<Vsnk; x++) {
    283. 

  283.                            Q02_re[Q_index(t,iCprime,iSprime,kCprime,kSprime,x,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] += weights[wnum] * ( (prop_re[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - prop_im[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) - (prop_re[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - prop_im[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) );
    284. 

  284.                            Q02_im[Q_index(t,iCprime,iSprime,kCprime,kSprime,x,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] += weights[wnum] * ( (prop_re[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + prop_im[prop_index(0,t,iC,iS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) - (prop_re[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + prop_im[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,iCprime,iSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) );
    285. 

  285.                         }
    286. 

  286.                      }
    287. 

  287.                   }
    288. 

  288.                }
    289. 

  289.             }
    290. 

  290.          }
    291. 

  291.       }
    292. 

  292.    }
    293. 

  293.    /* build q2-exchange block */
    294. 

  294.    for (t=0; t<Nt; t++) {
    295. 

  295.       for (iCprime=0; iCprime<Nc; iCprime++) {
    296. 

  296.          for (iSprime=0; iSprime<Ns; iSprime++) {
    297. 

  297.             for (kCprime=0; kCprime<Nc; kCprime++) {
    298. 

  298.                for (kSprime=0; kSprime<Ns; kSprime++) {
    299. 

  299.                   for (x1=0; x1<Vsnk; x1++) {
    300. 

  300.                      for (jC=0; jC<Nc; jC++) {
    301. 

  301.                         for (jS=0; jS<Ns; jS++) {
    302. 

  302.                            for (jCprime=0; jCprime<Nc; jCprime++) {
    303. 

  303.                               for (jSprime=0; jSprime<Ns; jSprime++) {
    304. 

  304.                                  for (y=0; y<Vsrc; y++) {
    305. 

  305.                                     for (x2=0; x2<Vsnk; x2++) {
    306. 

  306.                                        prop_prod_re = Q02_re[Q_index(t,iCprime,iSprime,kCprime,kSprime,x1,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_re[prop_index(1,t,jC,jS,jCprime,jSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)] - Q02_im[Q_index(t,iCprime,iSprime,kCprime,kSprime,x1,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_im[prop_index(1,t,jC,jS,jCprime,jSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)];
    307. 

  307.                                        prop_prod_im = Q02_re[Q_index(t,iCprime,iSprime,kCprime,kSprime,x1,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_im[prop_index(1,t,jC,jS,jCprime,jSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)] + Q02_im[Q_index(t,iCprime,iSprime,kCprime,kSprime,x1,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_re[prop_index(1,t,jC,jS,jCprime,jSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)];
    308. 

  308.                                        for (m=0; m<Nsrc; m++) {
    309. 

  309.                                           Bsingle_re[Bdouble_index(t,iCprime,iSprime,kCprime,kSprime,x1,jCprime,jSprime,x2,m ,Nc,Ns,Vsnk,Nsrc)] += psi_re[index_2d(y,m ,Nsrc)] * prop_prod_re - psi_im[index_2d(y,m ,Nsrc)] * prop_prod_im;
    310. 

  310.                                           Bsingle_im[Bdouble_index(t,iCprime,iSprime,kCprime,kSprime,x1,jCprime,jSprime,x2,m ,Nc,Ns,Vsnk,Nsrc)] += psi_re[index_2d(y,m ,Nsrc)] * prop_prod_im + psi_im[index_2d(y,m ,Nsrc)] * prop_prod_re;
    311. 

  311.                                        }
    312. 

  312.                                     }
    313. 

  313.                                  }
    314. 

  314.                               }
    315. 

  315.                            }
    316. 

  316.                         }
    317. 

  317.                      }
    318. 

  318.                   }
    319. 

  319.                }
    320. 

  320.             }
    321. 

  321.          }
    322. 

  322.       }
    323. 

  323.    }
    324. 

  324.    free(Q02_re);
    325. 

  325.    free(Q02_im);
    326. 

  326. }
    327. 

  327. 

  328. void make_double_block(double* Bdouble_re, 
    329. 

  329.     double* Bdouble_im, 
    330. 

  330.     const double* prop_re,
    331. 

  331.     const double* prop_im, 
    332. 

  332.     const int* color_weights, 
    333. 

  333.     const int* spin_weights, 
    334. 

  334.     const double* weights, 
    335. 

  335.     const double* psi_re,
    336. 

  336.     const double* psi_im,
    337. 

  337.     const int Nc,
    338. 

  338.     const int Ns,
    339. 

  339.     const int Vsrc,
    340. 

  340.     const int Vsnk,
    341. 

  341.     const int Nt,
    342. 

  342.     const int Nw,
    343. 

  343.     const int Nq,
    344. 

  344.     const int Nsrc) {
    345. 

  345.    /* indices */
    346. 

  346.    int iCprime, iSprime, jCprime, jSprime, kCprime, kSprime, iC, iS, jC, jS, kC, kS, x, x1, x2, t, y, wnum, n;
    347. 

  347.    /* subexpressions */
    348. 

  348.    double prop_prod_re;
    349. 

  349.    double prop_prod_im;
    350. 

  350.    double* Q12_re = malloc(Nt * Nc * Ns * Nc * Ns * Vsnk * Nc * Ns * Vsrc * sizeof (double));
    351. 

  351.    double* Q12_im = malloc(Nt * Nc * Ns * Nc * Ns * Vsnk * Nc * Ns * Vsrc * sizeof (double));
    352. 

  352.    double* Q01_re = malloc(Nt * Nc * Ns * Nc * Ns * Vsnk * Nc * Ns * Vsrc * sizeof (double));
    353. 

  353.    double* Q01_im = malloc(Nt * Nc * Ns * Nc * Ns * Vsnk * Nc * Ns * Vsrc * sizeof (double));
    354. 

  354.    /* initialize */
    355. 

  355.    for (t=0; t<Nt; t++) {
    356. 

  356.       for (iCprime=0; iCprime<Nc; iCprime++) {
    357. 

  357.          for (iSprime=0; iSprime<Ns; iSprime++) {
    358. 

  358.             for (kCprime=0; kCprime<Nc; kCprime++) {
    359. 

  359.                for (kSprime=0; kSprime<Ns; kSprime++) {
    360. 

  360.                   for (x1=0; x1<Vsnk; x1++) {
    361. 

  361.                      for (n=0; n<Nsrc; n++) {
    362. 

  362.                         for (jCprime=0; jCprime<Nc; jCprime++) {
    363. 

  363.                            for (jSprime=0; jSprime<Ns; jSprime++) {
    364. 

  364.                               for (x2=0; x2<Vsnk; x2++) {
    365. 

  365.                                  Bdouble_re[Bdouble_index(t,iCprime,iSprime,kCprime,kSprime,x1,jCprime,jSprime,x2,n ,Nc,Ns,Vsnk,Nsrc)] = 0.0;
    366. 

  366.                                  Bdouble_im[Bdouble_index(t,iCprime,iSprime,kCprime,kSprime,x1,jCprime,jSprime,x2,n ,Nc,Ns,Vsnk,Nsrc)] = 0.0;
    367. 

  367.                               }
    368. 

  368.                            }
    369. 

  369.                         }
    370. 

  370.                      }
    371. 

  371.                      for (jC=0; jC<Nc; jC++) {
    372. 

  372.                         for (jS=0; jS<Ns; jS++) {
    373. 

  373.                            for (y=0; y<Vsrc; y++) {
    374. 

  374.                               Q12_re[Q_index(t,iCprime,iSprime,kCprime,kSprime,x1,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] = 0.0;
    375. 

  375.                               Q12_im[Q_index(t,iCprime,iSprime,kCprime,kSprime,x1,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] = 0.0;
    376. 

  376.                               Q01_re[Q_index(t,iCprime,iSprime,kCprime,kSprime,x1,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] = 0.0;
    377. 

  377.                               Q01_im[Q_index(t,iCprime,iSprime,kCprime,kSprime,x1,jC,jS,y ,Nc,Ns,Vsrc,Vsnk)] = 0.0;
    378. 

  378.                            }
    379. 

  379.                         }
    380. 

  380.                      }
    381. 

  381.                   }
    382. 

  382.                }
    383. 

  383.             }
    384. 

  384.          }
    385. 

  385.       }
    386. 

  386.    }
    387. 

  387.    /* build diquarks */
    388. 

  388.    for (wnum=0; wnum<Nw; wnum++) {
    389. 

  389.       iC = color_weights[index_2d(wnum,0, Nq)];
    390. 

  390.       iS = spin_weights[index_2d(wnum,0, Nq)];
    391. 

  391.       jC = color_weights[index_2d(wnum,1, Nq)];
    392. 

  392.       jS = spin_weights[index_2d(wnum,1, Nq)];
    393. 

  393.       kC = color_weights[index_2d(wnum,2, Nq)];
    394. 

  394.       kS = spin_weights[index_2d(wnum,2, Nq)];
    395. 

  395.       for (t=0; t<Nt; t++) {
    396. 

  396.          for (jCprime=0; jCprime<Nc; jCprime++) {
    397. 

  397.             for (jSprime=0; jSprime<Ns; jSprime++) {
    398. 

  398.                for (kCprime=0; kCprime<Nc; kCprime++) {
    399. 

  399.                   for (kSprime=0; kSprime<Ns; kSprime++) {
    400. 

  400.                      for (y=0; y<Vsrc; y++) {
    401. 

  401.                         for (x=0; x<Vsnk; x++) {
    402. 

  402.                            Q12_re[Q_index(t,jCprime,jSprime,kCprime,kSprime,x,iC,iS,y ,Nc,Ns,Vsrc,Vsnk)] += weights[wnum] * (prop_re[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - prop_im[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]);
    403. 

  403.                            Q12_im[Q_index(t,jCprime,jSprime,kCprime,kSprime,x,iC,iS,y ,Nc,Ns,Vsrc,Vsnk)] += weights[wnum] * (prop_re[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + prop_im[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(2,t,kC,kS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]);
    404. 

  404.                            Q01_re[Q_index(t,jCprime,jSprime,kCprime,kSprime,x,kC,kS,y ,Nc,Ns,Vsrc,Vsnk)] += weights[wnum] * (prop_re[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - prop_im[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]);
    405. 

  405.                            Q01_im[Q_index(t,jCprime,jSprime,kCprime,kSprime,x,kC,kS,y ,Nc,Ns,Vsrc,Vsnk)] += weights[wnum] * (prop_re[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_im[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + prop_im[prop_index(0,t,iC,iS,kCprime,kSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * prop_re[prop_index(1,t,jC,jS,jCprime,jSprime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]);
    406. 

  406.                         }
    407. 

  407.                      }
    408. 

  408.                   }
    409. 

  409.                }
    410. 

  410.             }
    411. 

  411.          }
    412. 

  412.       }
    413. 

  413.    }
    414. 

  414.    /* build q2-exchange block */
    415. 

  415.    for (t=0; t<Nt; t++) {
    416. 

  416.       for (jCprime=0; jCprime<Nc; jCprime++) {
    417. 

  417.          for (jSprime=0; jSprime<Ns; jSprime++) {
    418. 

  418.             for (kCprime=0; kCprime<Nc; kCprime++) {
    419. 

  419.                for (kSprime=0; kSprime<Ns; kSprime++) {
    420. 

  420.                   for (x1=0; x1<Vsnk; x1++) {
    421. 

  421.                      for (iC=0; iC<Nc; iC++) {
    422. 

  422.                         for (iS=0; iS<Ns; iS++) {
    423. 

  423.                            for (iCprime=0; iCprime<Nc; iCprime++) {
    424. 

  424.                               for (iSprime=0; iSprime<Ns; iSprime++) {
    425. 

  425.                                  for (y=0; y<Vsrc; y++) {
    426. 

  426.                                     for (x2=0; x2<Vsnk; x2++) {
    427. 

  427.                                        prop_prod_re = Q12_re[Q_index(t,jCprime,jSprime,kCprime,kSprime,x1,iC,iS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_re[prop_index(0,t,iC,iS,iCprime,iSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)] - Q12_im[Q_index(t,jCprime,jSprime,kCprime,kSprime,x1,iC,iS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_im[prop_index(0,t,iC,iS,iCprime,iSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)];
    428. 

  428.                                        prop_prod_im = Q12_re[Q_index(t,jCprime,jSprime,kCprime,kSprime,x1,iC,iS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_im[prop_index(0,t,iC,iS,iCprime,iSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)] + Q12_im[Q_index(t,jCprime,jSprime,kCprime,kSprime,x1,iC,iS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_re[prop_index(0,t,iC,iS,iCprime,iSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)];
    429. 

  429.                                        prop_prod_re -= Q01_re[Q_index(t,jCprime,jSprime,kCprime,kSprime,x1,iC,iS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_re[prop_index(2,t,iC,iS,iCprime,iSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)] - Q01_im[Q_index(t,jCprime,jSprime,kCprime,kSprime,x1,iC,iS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_im[prop_index(2,t,iC,iS,iCprime,iSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)];
    430. 

  430.                                        prop_prod_im -= Q01_re[Q_index(t,jCprime,jSprime,kCprime,kSprime,x1,iC,iS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_im[prop_index(2,t,iC,iS,iCprime,iSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)] + Q01_im[Q_index(t,jCprime,jSprime,kCprime,kSprime,x1,iC,iS,y ,Nc,Ns,Vsrc,Vsnk)] * prop_re[prop_index(2,t,iC,iS,iCprime,iSprime,y,x2 ,Nc,Ns,Vsrc,Vsnk,Nt)];
    431. 

  431.                                        for (n=0; n<Nsrc; n++) {
    432. 

  432.                                           Bdouble_re[Bdouble_index(t,iCprime,iSprime,kCprime,kSprime,x1,jCprime,jSprime,x2,n ,Nc,Ns,Vsnk,Nsrc)] += psi_re[index_2d(y,n ,Nsrc)] * prop_prod_re - psi_im[index_2d(y,n ,Nsrc)] * prop_prod_im;
    433. 

  433.                                           Bdouble_im[Bdouble_index(t,iCprime,iSprime,kCprime,kSprime,x1,jCprime,jSprime,x2,n ,Nc,Ns,Vsnk,Nsrc)] += psi_re[index_2d(y,n ,Nsrc)] * prop_prod_im + psi_im[index_2d(y,n ,Nsrc)] * prop_prod_re;
    434. 

  434.                                        }
    435. 

  435.                                     }
    436. 

  436.                                  }
    437. 

  437.                               }
    438. 

  438.                            }
    439. 

  439.                         }
    440. 

  440.                      }
    441. 

  441.                   }
    442. 

  442.                }
    443. 

  443.             }
    444. 

  444.          }
    445. 

  445.       }
    446. 

  446.    }
    447. 

  447.    free(Q12_re);
    448. 

  448.    free(Q12_im);
    449. 

  449.    free(Q01_re);
    450. 

  450.    free(Q01_im);
    451. 

  451. }
    452. 

  452. 

  453. void make_dibaryon_correlator(double* C_re,
    454. 

  454.     double* C_im,
    455. 

  455.     const double* B1_Blocal_re, 
    456. 

  456.     const double* B1_Blocal_im, 
    457. 

  457.     const double* B1_Bsingle_re, 
    458. 

  458.     const double* B1_Bsingle_im, 
    459. 

  459.     const double* B1_Bdouble_re, 
    460. 

  460.     const double* B1_Bdouble_im, 
    461. 

  461.     const double* B2_Blocal_re, 
    462. 

  462.     const double* B2_Blocal_im, 
    463. 

  463.     const double* B2_Bsingle_re, 
    464. 

  464.     const double* B2_Bsingle_im, 
    465. 

  465.     const double* B2_Bdouble_re, 
    466. 

  466.     const double* B2_Bdouble_im, 
    467. 

  467.     const int* perms, 
    468. 

  468.     const int* sigs, 
    469. 

  469.     const double overall_weight,
    470. 

  470.     const int* snk_color_weights, 
    471. 

  471.     const int* snk_spin_weights, 
    472. 

  472.     const double* snk_weights, 
    473. 

  473.     const double* snk_psi_re,
    474. 

  474.     const double* snk_psi_im,
    475. 

  475.     const int Nc,
    476. 

  476.     const int Ns,
    477. 

  477.     const int Vsrc,
    478. 

  478.     const int Vsnk,
    479. 

  479.     const int Nt,
    480. 

  480.     const int Nw,
    481. 

  481.     const int Nq,
    482. 

  482.     const int Nsrc,
    483. 

  483.     const int Nsnk,
    484. 

  484.     const int Nperms) {
    485. 

  485.    /* indices */
    486. 

  486.    int iC1,iS1,jC1,jS1,kC1,kS1,iC2,iS2,jC2,jS2,kC2,kS2,x1,x2,t,wnum,nperm,b,n,m;
    487. 

  487.    int Nb = 2;
    488. 

  488.    int Nw2 = Nw*Nw;
    489. 

  489.    double term_re, term_im, new_term_re, new_term_im;
    490. 

  490.    /* build dibaryon */
    491. 

  491.    int snk_1_nq[Nb];
    492. 

  492.    int snk_2_nq[Nb];
    493. 

  493.    int snk_3_nq[Nb];
    494. 

  494.    int snk_1_b[Nb];
    495. 

  495.    int snk_2_b[Nb];
    496. 

  496.    int snk_3_b[Nb];
    497. 

  497.    int snk_1[Nb];
    498. 

  498.    int snk_2[Nb];
    499. 

  499.    int snk_3[Nb];
    500. 

  500.    for (nperm=0; nperm<Nperms; nperm++) {
    501. 

  501.       for (b=0; b<Nb; b++) {
    502. 

  502.          snk_1[b] = perms[index_2d(nperm,Nq*b+0 ,2*Nq)] - 1;
    503. 

  503.          snk_2[b] = perms[index_2d(nperm,Nq*b+1 ,2*Nq)] - 1;
    504. 

  504.          snk_3[b] = perms[index_2d(nperm,Nq*b+2 ,2*Nq)] - 1;
    505. 

  505.          snk_1_b[b] = (snk_1[b] - snk_1[b] % Nq) / Nq;
    506. 

  506.          snk_2_b[b] = (snk_2[b] - snk_2[b] % Nq) / Nq;
    507. 

  507.          snk_3_b[b] = (snk_3[b] - snk_3[b] % Nq) / Nq;
    508. 

  508.          snk_1_nq[b] = snk_1[b] % Nq;
    509. 

  509.          snk_2_nq[b] = snk_2[b] % Nq;
    510. 

  510.          snk_3_nq[b] = snk_3[b] % Nq;
    511. 

  511.       }
    512. 

  512.       for (wnum=0; wnum< Nw2; wnum++) {
    513. 

  513.          iC1 = snk_color_weights[index_3d(snk_1_b[0],wnum,snk_1_nq[0] ,Nw2,Nq)];
    514. 

  514.          iS1 = snk_spin_weights[index_3d(snk_1_b[0],wnum,snk_1_nq[0] ,Nw2,Nq)];
    515. 

  515.          jC1 = snk_color_weights[index_3d(snk_2_b[0],wnum,snk_2_nq[0] ,Nw2,Nq)];
    516. 

  516.          jS1 = snk_spin_weights[index_3d(snk_2_b[0],wnum,snk_2_nq[0] ,Nw2,Nq)];
    517. 

  517.          kC1 = snk_color_weights[index_3d(snk_3_b[0],wnum,snk_3_nq[0] ,Nw2,Nq)];
    518. 

  518.          kS1 = snk_spin_weights[index_3d(snk_3_b[0],wnum,snk_3_nq[0] ,Nw2,Nq)];
    519. 

  519.          iC2 = snk_color_weights[index_3d(snk_1_b[1],wnum,snk_1_nq[1] ,Nw2,Nq)];
    520. 

  520.          iS2 = snk_spin_weights[index_3d(snk_1_b[1],wnum,snk_1_nq[1] ,Nw2,Nq)];
    521. 

  521.          jC2 = snk_color_weights[index_3d(snk_2_b[1],wnum,snk_2_nq[1] ,Nw2,Nq)];
    522. 

  522.          jS2 = snk_spin_weights[index_3d(snk_2_b[1],wnum,snk_2_nq[1] ,Nw2,Nq)];
    523. 

  523.          kC2 = snk_color_weights[index_3d(snk_3_b[1],wnum,snk_3_nq[1] ,Nw2,Nq)];
    524. 

  524.          kS2 = snk_spin_weights[index_3d(snk_3_b[1],wnum,snk_3_nq[1] ,Nw2,Nq)]; 
    525. 

  525.          for (t=0; t<Nt; t++) {
    526. 

  526.             for (x1=0; x1<Vsnk; x1++) {
    527. 

  527.                for (x2=0; x2<Vsnk; x2++) {
    528. 

  528.                   for (m=0; m<Nsrc; m++) {
    529. 

  529.                      term_re = sigs[nperm] * overall_weight * snk_weights[wnum];
    530. 

  530.                      term_im = 0.0;
    531. 

  531.                      for (b=0; b<Nb; b++) {
    532. 

  532.                         if ((snk_1_b[b] == 0) && (snk_2_b[b] == 0) && (snk_3_b[b] == 0)) {
    533. 

  533.                            new_term_re = term_re * B1_Blocal_re[Blocal_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,m ,Nc,Ns,Vsnk,Nsrc)] - term_im * B1_Blocal_im[Blocal_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,m ,Nc,Ns,Vsnk,Nsrc)];
    534. 

  534.                            new_term_im = term_re * B1_Blocal_im[Blocal_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,m ,Nc,Ns,Vsnk,Nsrc)] + term_im * B1_Blocal_re[Blocal_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,m ,Nc,Ns,Vsnk,Nsrc)];
    535. 

  535.                         }
    536. 

  536.                         else if ((snk_1_b[b] == 1) && (snk_2_b[b] == 1) && (snk_3_b[b] == 1)) {
    537. 

  537.                            new_term_re = term_re * B2_Blocal_re[Blocal_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,m ,Nc,Ns,Vsnk,Nsrc)] - term_im * B2_Blocal_im[Blocal_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,m ,Nc,Ns,Vsnk,Nsrc)];
    538. 

  538.                            new_term_im = term_re * B2_Blocal_im[Blocal_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,m ,Nc,Ns,Vsnk,Nsrc)] + term_im * B2_Blocal_re[Blocal_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,m ,Nc,Ns,Vsnk,Nsrc)];
    539. 

  539.                         }
    540. 

  540.                         else if ((snk_1_b[b] == 0) && (snk_3_b[b] == 0)) {
    541. 

  541.                            new_term_re = term_re * B1_Bsingle_re[Bdouble_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,x2,m ,Nc,Ns,Vsnk,Nsrc)] - term_im * B1_Bsingle_im[Bdouble_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,x2,m ,Nc,Ns,Vsnk,Nsrc)];
    542. 

  542.                            new_term_im = term_re * B1_Bsingle_im[Bdouble_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,x2,m ,Nc,Ns,Vsnk,Nsrc)] + term_im * B1_Bsingle_re[Bdouble_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,x2,m ,Nc,Ns,Vsnk,Nsrc)];
    543. 

  543.                         }
    544. 

  544.                         else if ((snk_1_b[b] == 1) && (snk_3_b[b] == 1)) {
    545. 

  545.                            new_term_re = term_re * B2_Bsingle_re[Bdouble_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,x1,m ,Nc,Ns,Vsnk,Nsrc)] - term_im * B2_Bsingle_im[Bdouble_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,x1,m ,Nc,Ns,Vsnk,Nsrc)];
    546. 

  546.                            new_term_im = term_re * B2_Bsingle_im[Bdouble_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,x1,m ,Nc,Ns,Vsnk,Nsrc)] + term_im * B2_Bsingle_re[Bdouble_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,x1,m ,Nc,Ns,Vsnk,Nsrc)];
    547. 

  547.                         }
    548. 

  548.                         else if (((snk_1_b[b] == 0) && (snk_2_b[b] == 0)) || ((snk_2_b[b] == 0) && (snk_3_b[b] == 0))) {
    549. 

  549.                            new_term_re = term_re * B1_Bdouble_re[Bdouble_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,x2,m ,Nc,Ns,Vsnk,Nsrc)] - term_im * B1_Bdouble_im[Bdouble_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,x2,m ,Nc,Ns,Vsnk,Nsrc)];
    550. 

  550.                            new_term_im = term_re * B1_Bdouble_im[Bdouble_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,x2,m ,Nc,Ns,Vsnk,Nsrc)] + term_im * B1_Bdouble_re[Bdouble_index(t,iC1,iS1,kC1,kS1,x1,jC1,jS1,x2,m ,Nc,Ns,Vsnk,Nsrc)];
    551. 

  551.                         }
    552. 

  552.                         else if (((snk_1_b[b] == 1) && (snk_2_b[b] == 1)) || ((snk_2_b[b] == 1) && (snk_3_b[b] == 1))) {
    553. 

  553.                            new_term_re = term_re * B2_Bdouble_re[Bdouble_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,x1,m ,Nc,Ns,Vsnk,Nsrc)] - term_im * B2_Bdouble_im[Bdouble_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,x1,m ,Nc,Ns,Vsnk,Nsrc)];
    554. 

  554.                            new_term_im = term_re * B2_Bdouble_im[Bdouble_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,x1,m ,Nc,Ns,Vsnk,Nsrc)] + term_im * B2_Bdouble_re[Bdouble_index(t,iC2,iS2,kC2,kS2,x2,jC2,jS2,x1,m ,Nc,Ns,Vsnk,Nsrc)];
    555. 

  555.                         }
    556. 

  556.                         term_re = new_term_re;
    557. 

  557.                         term_im = new_term_im;
    558. 

  558.                      }
    559. 

  559.                      for (n=0; n<Nsnk; n++) {
    560. 

  560.                         C_re[index_3d(m,n,t,Nsnk,Nt)] += snk_psi_re[index_3d(x1,x2,n ,Vsnk,Nsnk)] * term_re - snk_psi_im[index_3d(x1,x2,n ,Vsnk,Nsnk)] * term_im;
    561. 

  561.                         C_im[index_3d(m,n,t,Nsnk,Nt)] += snk_psi_re[index_3d(x1,x2,n ,Vsnk,Nsnk)] * term_im + snk_psi_im[index_3d(x1,x2,n ,Vsnk,Nsnk)] * term_re;
    562. 

  562.                      }
    563. 

  563.                   }
    564. 

  564.                }
    565. 

  565.             }
    566. 

  566.          }
    567. 

  567.       }
    568. 

  568.    } 
    569. 

  569. }
    570. 

  570. 

  571. void make_dibaryon_hex_correlator(double* C_re,
    572. 

  572.     double* C_im,
    573. 

  573.     const double* B1_Blocal_re, 
    574. 

  574.     const double* B1_Blocal_im, 
    575. 

  575.     const double* B2_Blocal_re, 
    576. 

  576.     const double* B2_Blocal_im, 
    577. 

  577.     const int* perms, 
    578. 

  578.     const int* sigs, 
    579. 

  579.     const double overall_weight,
    580. 

  580.     const int* snk_color_weights, 
    581. 

  581.     const int* snk_spin_weights, 
    582. 

  582.     const double* snk_weights, 
    583. 

  583.     const double* hex_snk_psi_re,
    584. 

  584.     const double* hex_snk_psi_im,
    585. 

  585.     const int Nc,
    586. 

  586.     const int Ns,
    587. 

  587.     const int Vsrc,
    588. 

  588.     const int Vsnk,
    589. 

  589.     const int Nt,
    590. 

  590.     const int Nw,
    591. 

  591.     const int Nq,
    592. 

  592.     const int Nsrc,
    593. 

  593.     const int NsnkHex,
    594. 

  594.     const int Nperms) {
    595. 

  595.    /* indices */
    596. 

  596.    int iC1,iS1,jC1,jS1,kC1,kS1,iC2,iS2,jC2,jS2,kC2,kS2,x,t,wnum,nperm,b,n,m;
    597. 

  597.    int Nb = 2;
    598. 

  598.    int Nw2 = Nw*Nw;
    599. 

  599.    double term_re, term_im;
    600. 

  600.    /* build dibaryon */
    601. 

  601.    int snk_1_nq[Nb];
    602. 

  602.    int snk_2_nq[Nb];
    603. 

  603.    int snk_3_nq[Nb];
    604. 

  604.    int snk_1_b[Nb];
    605. 

  605.    int snk_2_b[Nb];
    606. 

  606.    int snk_3_b[Nb];
    607. 

  607.    int snk_1[Nb];
    608. 

  608.    int snk_2[Nb];
    609. 

  609.    int snk_3[Nb];
    610. 

  610.    for (nperm=0; nperm<Nperms; nperm++) {
    611. 

  611.       for (b=0; b<Nb; b++) {
    612. 

  612.          snk_1[b] = perms[index_2d(nperm,Nq*b+0 ,2*Nq)] - 1;
    613. 

  613.          snk_2[b] = perms[index_2d(nperm,Nq*b+1 ,2*Nq)] - 1;
    614. 

  614.          snk_3[b] = perms[index_2d(nperm,Nq*b+2 ,2*Nq)] - 1;
    615. 

  615.          snk_1_b[b] = (snk_1[b] - snk_1[b] % Nq) / Nq;
    616. 

  616.          snk_2_b[b] = (snk_2[b] - snk_2[b] % Nq) / Nq;
    617. 

  617.          snk_3_b[b] = (snk_3[b] - snk_3[b] % Nq) / Nq;
    618. 

  618.          snk_1_nq[b] = snk_1[b] % Nq;
    619. 

  619.          snk_2_nq[b] = snk_2[b] % Nq;
    620. 

  620.          snk_3_nq[b] = snk_3[b] % Nq;
    621. 

  621.       }
    622. 

  622.       for (wnum=0; wnum< Nw2; wnum++) {
    623. 

  623.          iC1 = snk_color_weights[index_3d(snk_1_b[0],wnum,snk_1_nq[0] ,Nw2,Nq)];
    624. 

  624.          iS1 = snk_spin_weights[index_3d(snk_1_b[0],wnum,snk_1_nq[0] ,Nw2,Nq)];
    625. 

  625.          jC1 = snk_color_weights[index_3d(snk_2_b[0],wnum,snk_2_nq[0] ,Nw2,Nq)];
    626. 

  626.          jS1 = snk_spin_weights[index_3d(snk_2_b[0],wnum,snk_2_nq[0] ,Nw2,Nq)];
    627. 

  627.          kC1 = snk_color_weights[index_3d(snk_3_b[0],wnum,snk_3_nq[0] ,Nw2,Nq)];
    628. 

  628.          kS1 = snk_spin_weights[index_3d(snk_3_b[0],wnum,snk_3_nq[0] ,Nw2,Nq)];
    629. 

  629.          iC2 = snk_color_weights[index_3d(snk_1_b[1],wnum,snk_1_nq[1] ,Nw2,Nq)];
    630. 

  630.          iS2 = snk_spin_weights[index_3d(snk_1_b[1],wnum,snk_1_nq[1] ,Nw2,Nq)];
    631. 

  631.          jC2 = snk_color_weights[index_3d(snk_2_b[1],wnum,snk_2_nq[1] ,Nw2,Nq)];
    632. 

  632.          jS2 = snk_spin_weights[index_3d(snk_2_b[1],wnum,snk_2_nq[1] ,Nw2,Nq)];
    633. 

  633.          kC2 = snk_color_weights[index_3d(snk_3_b[1],wnum,snk_3_nq[1] ,Nw2,Nq)];
    634. 

  634.          kS2 = snk_spin_weights[index_3d(snk_3_b[1],wnum,snk_3_nq[1] ,Nw2,Nq)]; 
    635. 

  635.          for (t=0; t<Nt; t++) {
    636. 

  636.             for (x=0; x<Vsnk; x++) {
    637. 

  637.                for (m=0; m<Nsrc; m++) {
    638. 

  638.                   term_re = sigs[nperm] * overall_weight * snk_weights[wnum] * (B1_Blocal_re[Blocal_index(t,iC1,iS1,kC1,kS1,x,jC1,jS1,m ,Nc,Ns,Vsnk,Nsrc)] * B2_Blocal_re[Blocal_index(t,iC2,iS2,kC2,kS2,x,jC2,jS2,m ,Nc,Ns,Vsnk,Nsrc)] - B1_Blocal_im[Blocal_index(t,iC1,iS1,kC1,kS1,x,jC1,jS1,m ,Nc,Ns,Vsnk,Nsrc)] * B2_Blocal_im[Blocal_index(t,iC2,iS2,kC2,kS2,x,jC2,jS2,m ,Nc,Ns,Vsnk,Nsrc)]);
    639. 

  639.                   term_im = sigs[nperm] * overall_weight * snk_weights[wnum] * (B1_Blocal_re[Blocal_index(t,iC1,iS1,kC1,kS1,x,jC1,jS1,m ,Nc,Ns,Vsnk,Nsrc)] * B2_Blocal_im[Blocal_index(t,iC2,iS2,kC2,kS2,x,jC2,jS2,m ,Nc,Ns,Vsnk,Nsrc)] + B1_Blocal_im[Blocal_index(t,iC1,iS1,kC1,kS1,x,jC1,jS1,m ,Nc,Ns,Vsnk,Nsrc)] * B2_Blocal_re[Blocal_index(t,iC2,iS2,kC2,kS2,x,jC2,jS2,m ,Nc,Ns,Vsnk,Nsrc)]);
    640. 

  640.                   for (n=0; n<NsnkHex; n++) {
    641. 

  641.                      C_re[index_3d(m,n,t ,NsnkHex,Nt)] += hex_snk_psi_re[index_2d(x,n ,NsnkHex)] * term_re - hex_snk_psi_im[index_2d(x,n ,NsnkHex)] * term_im;
    642. 

  642.                      C_im[index_3d(m,n,t ,NsnkHex,Nt)] += hex_snk_psi_re[index_2d(x,n ,NsnkHex)] * term_im + hex_snk_psi_im[index_2d(x,n ,NsnkHex)] * term_re;
    643. 

  643.                   }
    644. 

  644.                }
    645. 

  645.             }
    646. 

  646.          }
    647. 

  647.       }
    648. 

  648.    } 
    649. 

  649. }
    650. 

  650. 

  651. void make_hex_dibaryon_correlator(double* C_re,
    652. 

  652.     double* C_im,
    653. 

  653.     const double* B1_Blocal_re, 
    654. 

  654.     const double* B1_Blocal_im, 
    655. 

  655.     const double* B2_Blocal_re, 
    656. 

  656.     const double* B2_Blocal_im, 
    657. 

  657.     const int* perms, 
    658. 

  658.     const int* sigs, 
    659. 

  659.     const double overall_weight,
    660. 

  660.     const int* src_color_weights, 
    661. 

  661.     const int* src_spin_weights, 
    662. 

  662.     const double* src_weights, 
    663. 

  663.     const double* hex_src_psi_re,
    664. 

  664.     const double* hex_src_psi_im,
    665. 

  665.     const int Nc,
    666. 

  666.     const int Ns,
    667. 

  667.     const int Vsrc,
    668. 

  668.     const int Vsnk,
    669. 

  669.     const int Nt,
    670. 

  670.     const int Nw,
    671. 

  671.     const int Nq,
    672. 

  672.     const int NsrcHex,
    673. 

  673.     const int Nsnk,
    674. 

  674.     const int Nperms) {
    675. 

  675.    /* indices */
    676. 

  676.    int iC1,iS1,jC1,jS1,kC1,kS1,iC2,iS2,jC2,jS2,kC2,kS2,x,t,wnum,nperm,b,n,m,y;
    677. 

  677.    int Nb = 2;
    678. 

  678.    int Nw2 = Nw*Nw;
    679. 

  679.    double term_re, term_im;
    680. 

  680.    /* build dibaryon */
    681. 

  681.    int src_1_nq[Nb];
    682. 

  682.    int src_2_nq[Nb];
    683. 

  683.    int src_3_nq[Nb];
    684. 

  684.    int src_1_b[Nb];
    685. 

  685.    int src_2_b[Nb];
    686. 

  686.    int src_3_b[Nb];
    687. 

  687.    int src_1[Nb];
    688. 

  688.    int src_2[Nb];
    689. 

  689.    int src_3[Nb];
    690. 

  690.    for (nperm=0; nperm<Nperms; nperm++) {
    691. 

  691.       for (b=0; b<Nb; b++) {
    692. 

  692.          src_1[b] = perms[index_2d(nperm,Nq*b+0 ,2*Nq)] - 1;
    693. 

  693.          src_2[b] = perms[index_2d(nperm,Nq*b+1 ,2*Nq)] - 1;
    694. 

  694.          src_3[b] = perms[index_2d(nperm,Nq*b+2 ,2*Nq)] - 1;
    695. 

  695.          src_1_b[b] = (src_1[b] - src_1[b] % Nq) / Nq;
    696. 

  696.          src_2_b[b] = (src_2[b] - src_2[b] % Nq) / Nq;
    697. 

  697.          src_3_b[b] = (src_3[b] - src_3[b] % Nq) / Nq;
    698. 

  698.          src_1_nq[b] = src_1[b] % Nq;
    699. 

  699.          src_2_nq[b] = src_2[b] % Nq;
    700. 

  700.          src_3_nq[b] = src_3[b] % Nq;
    701. 

  701.       }
    702. 

  702.       for (wnum=0; wnum< Nw2; wnum++) {
    703. 

  703.          iC1 = src_color_weights[index_3d(src_1_b[0],wnum,src_1_nq[0] ,Nw2,Nq)];
    704. 

  704.          iS1 = src_spin_weights[index_3d(src_1_b[0],wnum,src_1_nq[0] ,Nw2,Nq)];
    705. 

  705.          jC1 = src_color_weights[index_3d(src_2_b[0],wnum,src_2_nq[0] ,Nw2,Nq)];
    706. 

  706.          jS1 = src_spin_weights[index_3d(src_2_b[0],wnum,src_2_nq[0] ,Nw2,Nq)];
    707. 

  707.          kC1 = src_color_weights[index_3d(src_3_b[0],wnum,src_3_nq[0] ,Nw2,Nq)];
    708. 

  708.          kS1 = src_spin_weights[index_3d(src_3_b[0],wnum,src_3_nq[0] ,Nw2,Nq)];
    709. 

  709.          iC2 = src_color_weights[index_3d(src_1_b[1],wnum,src_1_nq[1] ,Nw2,Nq)];
    710. 

  710.          iS2 = src_spin_weights[index_3d(src_1_b[1],wnum,src_1_nq[1] ,Nw2,Nq)];
    711. 

  711.          jC2 = src_color_weights[index_3d(src_2_b[1],wnum,src_2_nq[1] ,Nw2,Nq)];
    712. 

  712.          jS2 = src_spin_weights[index_3d(src_2_b[1],wnum,src_2_nq[1] ,Nw2,Nq)];
    713. 

  713.          kC2 = src_color_weights[index_3d(src_3_b[1],wnum,src_3_nq[1] ,Nw2,Nq)];
    714. 

  714.          kS2 = src_spin_weights[index_3d(src_3_b[1],wnum,src_3_nq[1] ,Nw2,Nq)]; 
    715. 

  715.          for (t=0; t<Nt; t++) {
    716. 

  716.             for (y=0; y<Vsrc; y++) {
    717. 

  717.                for (n=0; n<Nsnk; n++) {
    718. 

  718.                   term_re = sigs[nperm] * overall_weight * src_weights[wnum] * (B1_Blocal_re[Blocal_index(t,iC1,iS1,kC1,kS1,y,jC1,jS1,n ,Nc,Ns,Vsrc,Nsnk)] * B2_Blocal_re[Blocal_index(t,iC2,iS2,kC2,kS2,y,jC2,jS2,n ,Nc,Ns,Vsrc,Nsnk)] - B1_Blocal_im[Blocal_index(t,iC1,iS1,kC1,kS1,y,jC1,jS1,n ,Nc,Ns,Vsrc,Nsnk)] * B2_Blocal_im[Blocal_index(t,iC2,iS2,kC2,kS2,y,jC2,jS2,n ,Nc,Ns,Vsrc,Nsnk)]);
    719. 

  719.                   term_im = sigs[nperm] * overall_weight * src_weights[wnum] * (B1_Blocal_re[Blocal_index(t,iC1,iS1,kC1,kS1,y,jC1,jS1,n ,Nc,Ns,Vsrc,Nsnk)] * B2_Blocal_im[Blocal_index(t,iC2,iS2,kC2,kS2,y,jC2,jS2,n ,Nc,Ns,Vsrc,Nsnk)] + B1_Blocal_im[Blocal_index(t,iC1,iS1,kC1,kS1,y,jC1,jS1,n ,Nc,Ns,Vsrc,Nsnk)] * B2_Blocal_re[Blocal_index(t,iC2,iS2,kC2,kS2,y,jC2,jS2,n ,Nc,Ns,Vsrc,Nsnk)]);
    720. 

  720.                   for (m=0; m<NsrcHex; m++) {
    721. 

  721.                      C_re[index_3d(m,n,t ,Nsnk,Nt)] += hex_src_psi_re[index_2d(y,m, NsrcHex)] * term_re - hex_src_psi_im[index_2d(y,m, NsrcHex)] * term_im;
    722. 

  722.                      C_im[index_3d(m,n,t ,Nsnk,Nt)] += hex_src_psi_re[index_2d(y,m, NsrcHex)] * term_im + hex_src_psi_im[index_2d(y,m, NsrcHex)] * term_re;
    723. 

  723.                   }
    724. 

  724.                }
    725. 

  725.             }
    726. 

  726.          }
    727. 

  727.       }
    728. 

  728.    } 
    729. 

  729. }
    730. 

  730. 

  731. void make_hex_correlator(double* C_re,
    732. 

  732.     double* C_im,
    733. 

  733.     const double* B1_prop_re, 
    734. 

  734.     const double* B1_prop_im, 
    735. 

  735.     const double* B2_prop_re, 
    736. 

  736.     const double* B2_prop_im, 
    737. 

  737.     const int* perms, 
    738. 

  738.     const int* sigs, 
    739. 

  739.     const int* B1_src_color_weights, 
    740. 

  740.     const int* B1_src_spin_weights, 
    741. 

  741.     const double* B1_src_weights, 
    742. 

  742.     const int* B2_src_color_weights, 
    743. 

  743.     const int* B2_src_spin_weights, 
    744. 

  744.     const double* B2_src_weights, 
    745. 

  745.     const double overall_weight, 
    746. 

  746.     const int* snk_color_weights, 
    747. 

  747.     const int* snk_spin_weights, 
    748. 

  748.     const double* snk_weights, 
    749. 

  749.     const double* hex_src_psi_re,
    750. 

  750.     const double* hex_src_psi_im,
    751. 

  751.     const double* hex_snk_psi_re,
    752. 

  752.     const double* hex_snk_psi_im,
    753. 

  753.     const int Nc,
    754. 

  754.     const int Ns,
    755. 

  755.     const int Vsrc,
    756. 

  756.     const int Vsnk,
    757. 

  757.     const int Nt,
    758. 

  758.     const int Nw,
    759. 

  759.     const int Nq,
    760. 

  760.     const int NsrcHex,
    761. 

  761.     const int NsnkHex,
    762. 

  762.     const int Nperms) {
    763. 

  763.    /* indices */
    764. 

  764.    int x,t,wnum,nperm,b,n,m,y,wnumprime;
    765. 

  765.    int iC1prime,iS1prime,jC1prime,jS1prime,kC1prime,kS1prime,iC2prime,iS2prime,jC2prime,jS2prime,kC2prime,kS2prime;
    766. 

  766.    int iC1,iS1,jC1,jS1,kC1,kS1,iC2,iS2,jC2,jS2,kC2,kS2;
    767. 

  767.    int Nb = 2;
    768. 

  768.    int Nw2 = Nw*Nw;
    769. 

  769.    double B1_prop_prod_02_re, B1_prop_prod_02_im, B1_prop_prod_re, B1_prop_prod_im, B2_prop_prod_02_re, B2_prop_prod_02_im, B2_prop_prod_re, B2_prop_prod_im;
    770. 

  770.    double prop_prod_re, prop_prod_im, new_prop_prod_re, new_prop_prod_im;
    771. 

  771.    /* build dibaryon */
    772. 

  772.    int snk_1_nq[Nb];
    773. 

  773.    int snk_2_nq[Nb];
    774. 

  774.    int snk_3_nq[Nb];
    775. 

  775.    int snk_1_b[Nb];
    776. 

  776.    int snk_2_b[Nb];
    777. 

  777.    int snk_3_b[Nb];
    778. 

  778.    int snk_1[Nb];
    779. 

  779.    int snk_2[Nb];
    780. 

  780.    int snk_3[Nb];
    781. 

  781.    for (nperm=0; nperm<Nperms; nperm++) {
    782. 

  782.       for (b=0; b<Nb; b++) {
    783. 

  783.          snk_1[b] = perms[index_2d(nperm,Nq*b+0 ,2*Nq)] - 1;
    784. 

  784.          snk_2[b] = perms[index_2d(nperm,Nq*b+1 ,2*Nq)] - 1;
    785. 

  785.          snk_3[b] = perms[index_2d(nperm,Nq*b+2 ,2*Nq)] - 1;
    786. 

  786.          snk_1_b[b] = (snk_1[b] - snk_1[b] % Nq) / Nq;
    787. 

  787.          snk_2_b[b] = (snk_2[b] - snk_2[b] % Nq) / Nq;
    788. 

  788.          snk_3_b[b] = (snk_3[b] - snk_3[b] % Nq) / Nq;
    789. 

  789.          snk_1_nq[b] = snk_1[b] % Nq;
    790. 

  790.          snk_2_nq[b] = snk_2[b] % Nq;
    791. 

  791.          snk_3_nq[b] = snk_3[b] % Nq;
    792. 

  792.       }
    793. 

  793.       for (wnumprime=0; wnumprime< Nw2; wnumprime++) {
    794. 

  794.          iC1prime = snk_color_weights[index_3d(snk_1_b[0],wnumprime,snk_1_nq[0] ,Nw2,Nq)];
    795. 

  795.          iS1prime = snk_spin_weights[index_3d(snk_1_b[0],wnumprime,snk_1_nq[0] ,Nw2,Nq)];
    796. 

  796.          jC1prime = snk_color_weights[index_3d(snk_2_b[0],wnumprime,snk_2_nq[0] ,Nw2,Nq)];
    797. 

  797.          jS1prime = snk_spin_weights[index_3d(snk_2_b[0],wnumprime,snk_2_nq[0] ,Nw2,Nq)];
    798. 

  798.          kC1prime = snk_color_weights[index_3d(snk_3_b[0],wnumprime,snk_3_nq[0] ,Nw2,Nq)];
    799. 

  799.          kS1prime = snk_spin_weights[index_3d(snk_3_b[0],wnumprime,snk_3_nq[0] ,Nw2,Nq)];
    800. 

  800.          iC2prime = snk_color_weights[index_3d(snk_1_b[1],wnumprime,snk_1_nq[1] ,Nw2,Nq)];
    801. 

  801.          iS2prime = snk_spin_weights[index_3d(snk_1_b[1],wnumprime,snk_1_nq[1] ,Nw2,Nq)];
    802. 

  802.          jC2prime = snk_color_weights[index_3d(snk_2_b[1],wnumprime,snk_2_nq[1] ,Nw2,Nq)];
    803. 

  803.          jS2prime = snk_spin_weights[index_3d(snk_2_b[1],wnumprime,snk_2_nq[1] ,Nw2,Nq)];
    804. 

  804.          kC2prime = snk_color_weights[index_3d(snk_3_b[1],wnumprime,snk_3_nq[1] ,Nw2,Nq)];
    805. 

  805.          kS2prime = snk_spin_weights[index_3d(snk_3_b[1],wnumprime,snk_3_nq[1] ,Nw2,Nq)]; 
    806. 

  806.          for (t=0; t<Nt; t++) {
    807. 

  807.             for (y=0; y<Vsrc; y++) {
    808. 

  808.                for (x=0; x<Vsnk; x++) {
    809. 

  809.                   B1_prop_prod_re = 0;
    810. 

  810.                   B1_prop_prod_im = 0;
    811. 

  811.                   for (wnum=0; wnum<Nw; wnum++) {
    812. 

  812.                      iC1 = B1_src_color_weights[index_2d(wnum,0, Nq)];
    813. 

  813.                      iS1 = B1_src_spin_weights[index_2d(wnum,0, Nq)];
    814. 

  814.                      jC1 = B1_src_color_weights[index_2d(wnum,1, Nq)];
    815. 

  815.                      jS1 = B1_src_spin_weights[index_2d(wnum,1, Nq)];
    816. 

  816.                      kC1 = B1_src_color_weights[index_2d(wnum,2, Nq)];
    817. 

  817.                      kS1 = B1_src_spin_weights[index_2d(wnum,2, Nq)];
    818. 

  818.                      B1_prop_prod_02_re = B1_src_weights[wnum] * ( (B1_prop_re[prop_index(0,t,iC1,iS1,iC1prime,iS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B1_prop_re[prop_index(2,t,kC1,kS1,kC1prime,kS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - B1_prop_im[prop_index(0,t,iC1,iS1,iC1prime,iS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B1_prop_im[prop_index(2,t,kC1,kS1,kC1prime,kS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) - (B1_prop_re[prop_index(0,t,iC1,iS1,kC1prime,kS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B1_prop_re[prop_index(2,t,kC1,kS1,iC1prime,iS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - B1_prop_im[prop_index(0,t,iC1,iS1,kC1prime,kS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B1_prop_im[prop_index(2,t,kC1,kS1,iC1prime,iS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) );
    819. 

  819.                      B1_prop_prod_02_im = B1_src_weights[wnum] * ( (B1_prop_re[prop_index(0,t,iC1,iS1,iC1prime,iS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B1_prop_im[prop_index(2,t,kC1,kS1,kC1prime,kS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + B1_prop_im[prop_index(0,t,iC1,iS1,iC1prime,iS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B1_prop_re[prop_index(2,t,kC1,kS1,kC1prime,kS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) - (B1_prop_re[prop_index(0,t,iC1,iS1,kC1prime,kS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B1_prop_im[prop_index(2,t,kC1,kS1,iC1prime,iS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + B1_prop_im[prop_index(0,t,iC1,iS1,kC1prime,kS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B1_prop_re[prop_index(2,t,kC1,kS1,iC1prime,iS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) );
    820. 

  820.                      B1_prop_prod_re += B1_prop_prod_02_re * B1_prop_re[prop_index(1,t,jC1,jS1,jC1prime,jS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - B1_prop_prod_02_im * B1_prop_im[prop_index(1,t,jC1,jS1,jC1prime,jS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)];
    821. 

  821.                      B1_prop_prod_im += B1_prop_prod_02_re * B1_prop_im[prop_index(1,t,jC1,jS1,jC1prime,jS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + B1_prop_prod_02_im * B1_prop_re[prop_index(1,t,jC1,jS1,jC1prime,jS1prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)];
    822. 

  822.                   }
    823. 

  823.                   B2_prop_prod_re = 0;
    824. 

  824.                   B2_prop_prod_im = 0;
    825. 

  825.                   for (wnum=0; wnum<Nw; wnum++) {
    826. 

  826.                      iC2 = B2_src_color_weights[index_2d(wnum,0, Nq)];
    827. 

  827.                      iS2 = B2_src_spin_weights[index_2d(wnum,0, Nq)];
    828. 

  828.                      jC2 = B2_src_color_weights[index_2d(wnum,1, Nq)];
    829. 

  829.                      jS2 = B2_src_spin_weights[index_2d(wnum,1, Nq)];
    830. 

  830.                      kC2 = B2_src_color_weights[index_2d(wnum,2, Nq)];
    831. 

  831.                      kS2 = B2_src_spin_weights[index_2d(wnum,2, Nq)];
    832. 

  832.                      B2_prop_prod_02_re = B2_src_weights[wnum] * ( (B2_prop_re[prop_index(0,t,iC2,iS2,iC2prime,iS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B2_prop_re[prop_index(2,t,kC2,kS2,kC2prime,kS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - B2_prop_im[prop_index(0,t,iC2,iS2,iC2prime,iS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B2_prop_im[prop_index(2,t,kC2,kS2,kC2prime,kS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) - (B2_prop_re[prop_index(0,t,iC2,iS2,kC2prime,kS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B2_prop_re[prop_index(2,t,kC2,kS2,iC2prime,iS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - B2_prop_im[prop_index(0,t,iC2,iS2,kC2prime,kS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B2_prop_im[prop_index(2,t,kC2,kS2,iC2prime,iS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) );
    833. 

  833.                      B2_prop_prod_02_im = B2_src_weights[wnum] * ( (B2_prop_re[prop_index(0,t,iC2,iS2,iC2prime,iS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B2_prop_im[prop_index(2,t,kC2,kS2,kC2prime,kS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + B2_prop_im[prop_index(0,t,iC2,iS2,iC2prime,iS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B2_prop_re[prop_index(2,t,kC2,kS2,kC2prime,kS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) - (B2_prop_re[prop_index(0,t,iC2,iS2,kC2prime,kS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B2_prop_im[prop_index(2,t,kC2,kS2,iC2prime,iS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + B2_prop_im[prop_index(0,t,iC2,iS2,kC2prime,kS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] * B2_prop_re[prop_index(2,t,kC2,kS2,iC2prime,iS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)]) );
    834. 

  834.                      B2_prop_prod_re += B2_prop_prod_02_re * B2_prop_re[prop_index(1,t,jC2,jS2,jC2prime,jS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] - B2_prop_prod_02_im * B2_prop_im[prop_index(1,t,jC2,jS2,jC2prime,jS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)];
    835. 

  835.                      B2_prop_prod_im += B2_prop_prod_02_re * B2_prop_im[prop_index(1,t,jC2,jS2,jC2prime,jS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)] + B2_prop_prod_02_im * B2_prop_re[prop_index(1,t,jC2,jS2,jC2prime,jS2prime,y,x ,Nc,Ns,Vsrc,Vsnk,Nt)];
    836. 

  836.                   }
    837. 

  837.                   prop_prod_re = overall_weight * sigs[nperm] * snk_weights[wnumprime] * ( B1_prop_prod_re * B2_prop_prod_re - B1_prop_prod_im * B2_prop_prod_im );
    838. 

  838.                   prop_prod_im = overall_weigh…
    839.