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rocrand_log_normal.h

1 // Copyright (c) 2017-2022 Advanced Micro Devices, Inc. All rights reserved.

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20 

21 #ifndef ROCRAND_LOG_NORMAL_H_

22 #define ROCRAND_LOG_NORMAL_H_

23 

24 #ifndef FQUALIFIERS

25 #define FQUALIFIERS __forceinline__ __device__

26 #endif // FQUALIFIERS

27 

33 #include <math.h>

34 

35 #include "rocrand/rocrand_lfsr113.h"

36 #include "rocrand/rocrand_mrg31k3p.h"

37 #include "rocrand/rocrand_mrg32k3a.h"

38 #include "rocrand/rocrand_mtgp32.h"

39 #include "rocrand/rocrand_philox4x32_10.h"

40 #include "rocrand/rocrand_scrambled_sobol32.h"

41 #include "rocrand/rocrand_scrambled_sobol64.h"

42 #include "rocrand/rocrand_sobol32.h"

43 #include "rocrand/rocrand_sobol64.h"

44 #include "rocrand/rocrand_threefry2x32_20.h"

45 #include "rocrand/rocrand_threefry2x64_20.h"

46 #include "rocrand/rocrand_threefry4x32_20.h"

47 #include "rocrand/rocrand_threefry4x64_20.h"

48 #include "rocrand/rocrand_xorwow.h"

49 

50 #include "rocrand/rocrand_normal.h"

51 

67 #ifndef ROCRAND_DETAIL_PHILOX_BM_NOT_IN_STATE

68 FQUALIFIERS

69 float rocrand_log_normal(rocrand_state_philox4x32_10 * state, float mean, float stddev)

70 {

71  typedef rocrand_device::detail::engine_boxmuller_helper<rocrand_state_philox4x32_10> bm_helper;

72 

73  if(bm_helper::has_float(state))

74  {

75  return expf(mean + (stddev * bm_helper::get_float(state)));

76  }

77 

78  auto state1 = rocrand(state);

79  auto state2 = rocrand(state);

80 

81  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

82  bm_helper::save_float(state, r.y);

83  return expf(mean + (stddev * r.x));

84 }

85 #endif // ROCRAND_DETAIL_PHILOX_BM_NOT_IN_STATE

86 

101 FQUALIFIERS

102 float2 rocrand_log_normal2(rocrand_state_philox4x32_10 * state, float mean, float stddev)

103 {

104  auto state1 = rocrand(state);

105  auto state2 = rocrand(state);

106 

107  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

108  return float2 {

109  expf(mean + (stddev * r.x)),

110  expf(mean + (stddev * r.y))

111  };

112 }

113 

128 FQUALIFIERS

129 float4 rocrand_log_normal4(rocrand_state_philox4x32_10 * state, float mean, float stddev)

130 {

131  float4 r = rocrand_device::detail::normal_distribution4(rocrand4(state));

132  return float4 {

133  expf(mean + (stddev * r.x)),

134  expf(mean + (stddev * r.y)),

135  expf(mean + (stddev * r.z)),

136  expf(mean + (stddev * r.w))

137  };

138 }

139 

155 #ifndef ROCRAND_DETAIL_PHILOX_BM_NOT_IN_STATE

156 FQUALIFIERS

157 double rocrand_log_normal_double(rocrand_state_philox4x32_10 * state, double mean, double stddev)

158 {

159  typedef rocrand_device::detail::engine_boxmuller_helper<rocrand_state_philox4x32_10> bm_helper;

160 

161  if(bm_helper::has_double(state))

162  {

163  return exp(mean + (stddev * bm_helper::get_double(state)));

164  }

165  double2 r = rocrand_device::detail::normal_distribution_double2(rocrand4(state));

166  bm_helper::save_double(state, r.y);

167  return exp(mean + r.x * stddev);

168 }

169 #endif // ROCRAND_DETAIL_PHILOX_BM_NOT_IN_STATE

170 

185 FQUALIFIERS

186 double2 rocrand_log_normal_double2(rocrand_state_philox4x32_10 * state, double mean, double stddev)

187 {

188  double2 r = rocrand_device::detail::normal_distribution_double2(rocrand4(state));

189  return double2 {

190  exp(mean + (stddev * r.x)),

191  exp(mean + (stddev * r.y))

192  };

193 }

194 

209 FQUALIFIERS

210 double4 rocrand_log_normal_double4(rocrand_state_philox4x32_10 * state, double mean, double stddev)

211 {

212  double2 r1, r2;

213  r1 = rocrand_log_normal_double2(state, mean, stddev);

214  r2 = rocrand_log_normal_double2(state, mean, stddev);

215  return double4 {

216  r1.x, r1.y, r2.x, r2.y

217  };

218 }

219 

235 #ifndef ROCRAND_DETAIL_MRG31K3P_BM_NOT_IN_STATE

236 FQUALIFIERS float rocrand_log_normal(rocrand_state_mrg31k3p* state, float mean, float stddev)

237 {

238  typedef rocrand_device::detail::engine_boxmuller_helper<rocrand_state_mrg31k3p> bm_helper;

239 

240  if(bm_helper::has_float(state))

241  {

242  return expf(mean + (stddev * bm_helper::get_float(state)));

243  }

244 

245  auto state1 = state->next();

246  auto state2 = state->next();

247 

248  float2 r

249  = rocrand_device::detail::mrg_normal_distribution2<rocrand_state_mrg31k3p>(state1, state2);

250  bm_helper::save_float(state, r.y);

251  return expf(mean + (stddev * r.x));

252 }

253 #endif // ROCRAND_DETAIL_MRG31K3P_BM_NOT_IN_STATE

254 

269 FQUALIFIERS float2 rocrand_log_normal2(rocrand_state_mrg31k3p* state, float mean, float stddev)

270 {

271  auto state1 = state->next();

272  auto state2 = state->next();

273 

274  float2 r

275  = rocrand_device::detail::mrg_normal_distribution2<rocrand_state_mrg31k3p>(state1, state2);

276  return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

277 }

278 

294 #ifndef ROCRAND_DETAIL_MRG31K3P_BM_NOT_IN_STATE

295 FQUALIFIERS double

296  rocrand_log_normal_double(rocrand_state_mrg31k3p* state, double mean, double stddev)

297 {

298  typedef rocrand_device::detail::engine_boxmuller_helper<rocrand_state_mrg31k3p> bm_helper;

299 

300  if(bm_helper::has_double(state))

301  {

302  return exp(mean + (stddev * bm_helper::get_double(state)));

303  }

304 

305  auto state1 = state->next();

306  auto state2 = state->next();

307 

308  double2 r

309  = rocrand_device::detail::mrg_normal_distribution_double2<rocrand_state_mrg31k3p>(state1,

310  state2);

311  bm_helper::save_double(state, r.y);

312  return exp(mean + r.x * stddev);

313 }

314 #endif // ROCRAND_DETAIL_MRG31K3P_BM_NOT_IN_STATE

315 

330 FQUALIFIERS double2 rocrand_log_normal_double2(rocrand_state_mrg31k3p* state,

331  double mean,

332  double stddev)

333 {

334  auto state1 = state->next();

335  auto state2 = state->next();

336 

337  double2 r

338  = rocrand_device::detail::mrg_normal_distribution_double2<rocrand_state_mrg31k3p>(state1,

339  state2);

340  return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

341 }

342 

358 #ifndef ROCRAND_DETAIL_MRG32K3A_BM_NOT_IN_STATE

359 FQUALIFIERS

360 float rocrand_log_normal(rocrand_state_mrg32k3a * state, float mean, float stddev)

361 {

362  typedef rocrand_device::detail::engine_boxmuller_helper<rocrand_state_mrg32k3a> bm_helper;

363 

364  if(bm_helper::has_float(state))

365  {

366  return expf(mean + (stddev * bm_helper::get_float(state)));

367  }

368 

369  auto state1 = state->next();

370  auto state2 = state->next();

371 

372  float2 r

373  = rocrand_device::detail::mrg_normal_distribution2<rocrand_state_mrg32k3a>(state1, state2);

374  bm_helper::save_float(state, r.y);

375  return expf(mean + (stddev * r.x));

376 }

377 #endif // ROCRAND_DETAIL_MRG32K3A_BM_NOT_IN_STATE

378 

393 FQUALIFIERS

394 float2 rocrand_log_normal2(rocrand_state_mrg32k3a * state, float mean, float stddev)

395 {

396  auto state1 = state->next();

397  auto state2 = state->next();

398 

399  float2 r

400  = rocrand_device::detail::mrg_normal_distribution2<rocrand_state_mrg32k3a>(state1, state2);

401  return float2 {

402  expf(mean + (stddev * r.x)),

403  expf(mean + (stddev * r.y))

404  };

405 }

406 

422 #ifndef ROCRAND_DETAIL_MRG32K3A_BM_NOT_IN_STATE

423 FQUALIFIERS

424 double rocrand_log_normal_double(rocrand_state_mrg32k3a * state, double mean, double stddev)

425 {

426  typedef rocrand_device::detail::engine_boxmuller_helper<rocrand_state_mrg32k3a> bm_helper;

427 

428  if(bm_helper::has_double(state))

429  {

430  return exp(mean + (stddev * bm_helper::get_double(state)));

431  }

432 

433  auto state1 = state->next();

434  auto state2 = state->next();

435 

436  double2 r

437  = rocrand_device::detail::mrg_normal_distribution_double2<rocrand_state_mrg32k3a>(state1,

438  state2);

439  bm_helper::save_double(state, r.y);

440  return exp(mean + r.x * stddev);

441 }

442 #endif // ROCRAND_DETAIL_MRG32K3A_BM_NOT_IN_STATE

443 

458 FQUALIFIERS

459 double2 rocrand_log_normal_double2(rocrand_state_mrg32k3a * state, double mean, double stddev)

460 {

461  auto state1 = state->next();

462  auto state2 = state->next();

463 

464  double2 r

465  = rocrand_device::detail::mrg_normal_distribution_double2<rocrand_state_mrg32k3a>(state1,

466  state2);

467  return double2 {

468  exp(mean + (stddev * r.x)),

469  exp(mean + (stddev * r.y))

470  };

471 }

472 

488 #ifndef ROCRAND_DETAIL_XORWOW_BM_NOT_IN_STATE

489 FQUALIFIERS

490 float rocrand_log_normal(rocrand_state_xorwow * state, float mean, float stddev)

491 {

492  typedef rocrand_device::detail::engine_boxmuller_helper<rocrand_state_xorwow> bm_helper;

493 

494  if(bm_helper::has_float(state))

495  {

496  return expf(mean + (stddev * bm_helper::get_float(state)));

497  }

498 

499  auto state1 = rocrand(state);

500  auto state2 = rocrand(state);

501 

502  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

503  bm_helper::save_float(state, r.y);

504  return expf(mean + (stddev * r.x));

505 }

506 #endif // ROCRAND_DETAIL_XORWOW_BM_NOT_IN_STATE

507 

522 FQUALIFIERS

523 float2 rocrand_log_normal2(rocrand_state_xorwow * state, float mean, float stddev)

524 {

525  auto state1 = rocrand(state);

526  auto state2 = rocrand(state);

527 

528  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

529  return float2 {

530  expf(mean + (stddev * r.x)),

531  expf(mean + (stddev * r.y))

532  };

533 }

534 

550 #ifndef ROCRAND_DETAIL_XORWOW_BM_NOT_IN_STATE

551 FQUALIFIERS

552 double rocrand_log_normal_double(rocrand_state_xorwow * state, double mean, double stddev)

553 {

554  typedef rocrand_device::detail::engine_boxmuller_helper<rocrand_state_xorwow> bm_helper;

555 

556  if(bm_helper::has_double(state))

557  {

558  return exp(mean + (stddev * bm_helper::get_double(state)));

559  }

560 

561  auto state1 = rocrand(state);

562  auto state2 = rocrand(state);

563  auto state3 = rocrand(state);

564  auto state4 = rocrand(state);

565 

566  double2 r = rocrand_device::detail::normal_distribution_double2(

567  uint4 { state1, state2, state3, state4 }

568  );

569  bm_helper::save_double(state, r.y);

570  return exp(mean + (stddev * r.x));

571 }

572 #endif // ROCRAND_DETAIL_XORWOW_BM_NOT_IN_STATE

573 

588 FQUALIFIERS

589 double2 rocrand_log_normal_double2(rocrand_state_xorwow * state, double mean, double stddev)

590 {

591  auto state1 = rocrand(state);

592  auto state2 = rocrand(state);

593  auto state3 = rocrand(state);

594  auto state4 = rocrand(state);

595 

596  double2 r = rocrand_device::detail::normal_distribution_double2(

597  uint4 { state1, state2, state3, state4 }

598  );

599  return double2 {

600  exp(mean + (stddev * r.x)),

601  exp(mean + (stddev * r.y))

602  };

603 }

604 

617 FQUALIFIERS

618 float rocrand_log_normal(rocrand_state_mtgp32 * state, float mean, float stddev)

619 {

620  float r = rocrand_device::detail::normal_distribution(rocrand(state));

621  return expf(mean + (stddev * r));

622 }

623 

636 FQUALIFIERS

637 double rocrand_log_normal_double(rocrand_state_mtgp32 * state, double mean, double stddev)

638 {

639  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

640  return exp(mean + (stddev * r));

641 }

642 

655 FQUALIFIERS

656 float rocrand_log_normal(rocrand_state_sobol32 * state, float mean, float stddev)

657 {

658  float r = rocrand_device::detail::normal_distribution(rocrand(state));

659  return expf(mean + (stddev * r));

660 }

661 

674 FQUALIFIERS

675 double rocrand_log_normal_double(rocrand_state_sobol32 * state, double mean, double stddev)

676 {

677  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

678  return exp(mean + (stddev * r));

679 }

680 

693 FQUALIFIERS

694 float rocrand_log_normal(rocrand_state_scrambled_sobol32* state, float mean, float stddev)

695 {

696  float r = rocrand_device::detail::normal_distribution(rocrand(state));

697  return expf(mean + (stddev * r));

698 }

699 

712 FQUALIFIERS

713 double rocrand_log_normal_double(rocrand_state_scrambled_sobol32* state, double mean, double stddev)

714 {

715  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

716  return exp(mean + (stddev * r));

717 }

718 

731 FQUALIFIERS

732 float rocrand_log_normal(rocrand_state_sobol64* state, float mean, float stddev)

733 {

734  float r = rocrand_device::detail::normal_distribution(rocrand(state));

735  return expf(mean + (stddev * r));

736 }

737 

750 FQUALIFIERS

751 double rocrand_log_normal_double(rocrand_state_sobol64 * state, double mean, double stddev)

752 {

753  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

754  return exp(mean + (stddev * r));

755 }

756 

769 FQUALIFIERS

770 float rocrand_log_normal(rocrand_state_scrambled_sobol64* state, float mean, float stddev)

771 {

772  float r = rocrand_device::detail::normal_distribution(rocrand(state));

773  return expf(mean + (stddev * r));

774 }

775 

788 FQUALIFIERS

789 double rocrand_log_normal_double(rocrand_state_scrambled_sobol64* state, double mean, double stddev)

790 {

791  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

792  return exp(mean + (stddev * r));

793 }

794 

807 FQUALIFIERS

808 float rocrand_log_normal(rocrand_state_lfsr113* state, float mean, float stddev)

809 {

810  float r = rocrand_device::detail::normal_distribution(rocrand(state));

811  return expf(mean + (stddev * r));

812 }

813 

828 FQUALIFIERS

829 float2 rocrand_log_normal2(rocrand_state_lfsr113* state, float mean, float stddev)

830 {

831  auto state1 = rocrand(state);

832  auto state2 = rocrand(state);

833 

834  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

835  return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

836 }

837 

850 FQUALIFIERS

851 double rocrand_log_normal_double(rocrand_state_lfsr113* state, double mean, double stddev)

852 {

853  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

854  return exp(mean + (stddev * r));

855 }

856 

871 FQUALIFIERS

872 double2 rocrand_log_normal_double2(rocrand_state_lfsr113* state, double mean, double stddev)

873 {

874  auto state1 = rocrand(state);

875  auto state2 = rocrand(state);

876  auto state3 = rocrand(state);

877  auto state4 = rocrand(state);

878 

879  double2 r = rocrand_device::detail::normal_distribution_double2(

880  uint4{state1, state2, state3, state4});

881  return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

882 }

883 

896 FQUALIFIERS float

897  rocrand_log_normal(rocrand_state_threefry2x32_20* state, double mean, double stddev)

898 {

899  float r = rocrand_device::detail::normal_distribution(rocrand(state));

900  return expf(mean + (stddev * r));

901 }

902 

917 FQUALIFIERS float2 rocrand_log_normal2(rocrand_state_threefry2x32_20* state,

918  float mean,

919  float stddev)

920 {

921  auto state1 = rocrand(state);

922  auto state2 = rocrand(state);

923 

924  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

925  return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

926 }

927 

940 FQUALIFIERS double

941  rocrand_log_normal_double(rocrand_state_threefry2x32_20* state, double mean, double stddev)

942 {

943  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

944  return exp(mean + (stddev * r));

945 }

946 

961 FQUALIFIERS double2 rocrand_log_normal_double2(rocrand_state_threefry2x32_20* state,

962  double mean,

963  double stddev)

964 {

965  auto state1 = rocrand(state);

966  auto state2 = rocrand(state);

967  auto state3 = rocrand(state);

968  auto state4 = rocrand(state);

969 

970  double2 r = rocrand_device::detail::normal_distribution_double2(

971  uint4{state1, state2, state3, state4});

972  return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

973 }

974 

987 FQUALIFIERS float

988  rocrand_log_normal(rocrand_state_threefry2x64_20* state, double mean, double stddev)

989 {

990  float r = rocrand_device::detail::normal_distribution(rocrand(state));

991  return expf(mean + (stddev * r));

992 }

993 

1008 FQUALIFIERS float2 rocrand_log_normal2(rocrand_state_threefry2x64_20* state,

1009  float mean,

1010  float stddev)

1011 {

1012  auto state1 = rocrand(state);

1013  auto state2 = rocrand(state);

1014 

1015  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

1016  return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

1017 }

1018 

1031 FQUALIFIERS double

1032  rocrand_log_normal_double(rocrand_state_threefry2x64_20* state, double mean, double stddev)

1033 {

1034  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

1035  return exp(mean + (stddev * r));

1036 }

1037 

1052 FQUALIFIERS double2 rocrand_log_normal_double2(rocrand_state_threefry2x64_20* state,

1053  double mean,

1054  double stddev)

1055 {

1056  auto state1 = rocrand(state);

1057  auto state2 = rocrand(state);

1058  auto state3 = rocrand(state);

1059  auto state4 = rocrand(state);

1060 

1061  double2 r = rocrand_device::detail::normal_distribution_double2(

1062  uint4{state1, state2, state3, state4});

1063  return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

1064 }

1065 

1078 FQUALIFIERS float

1079  rocrand_log_normal(rocrand_state_threefry4x32_20* state, double mean, double stddev)

1080 {

1081  float r = rocrand_device::detail::normal_distribution(rocrand(state));

1082  return expf(mean + (stddev * r));

1083 }

1084 

1099 FQUALIFIERS float2 rocrand_log_normal2(rocrand_state_threefry4x32_20* state,

1100  float mean,

1101  float stddev)

1102 {

1103  auto state1 = rocrand(state);

1104  auto state2 = rocrand(state);

1105 

1106  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

1107  return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

1108 }

1109 

1122 FQUALIFIERS double

1123  rocrand_log_normal_double(rocrand_state_threefry4x32_20* state, double mean, double stddev)

1124 {

1125  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

1126  return exp(mean + (stddev * r));

1127 }

1128 

1143 FQUALIFIERS double2 rocrand_log_normal_double2(rocrand_state_threefry4x32_20* state,

1144  double mean,

1145  double stddev)

1146 {

1147  auto state1 = rocrand(state);

1148  auto state2 = rocrand(state);

1149  auto state3 = rocrand(state);

1150  auto state4 = rocrand(state);

1151 

1152  double2 r = rocrand_device::detail::normal_distribution_double2(

1153  uint4{state1, state2, state3, state4});

1154  return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

1155 }

1156 

1169 FQUALIFIERS float

1170  rocrand_log_normal(rocrand_state_threefry4x64_20* state, double mean, double stddev)

1171 {

1172  float r = rocrand_device::detail::normal_distribution(rocrand(state));

1173  return expf(mean + (stddev * r));

1174 }

1175 

1190 FQUALIFIERS float2 rocrand_log_normal2(rocrand_state_threefry4x64_20* state,

1191  float mean,

1192  float stddev)

1193 {

1194  auto state1 = rocrand(state);

1195  auto state2 = rocrand(state);

1196 

1197  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

1198  return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

1199 }

1200 

1213 FQUALIFIERS double

1214  rocrand_log_normal_double(rocrand_state_threefry4x64_20* state, double mean, double stddev)

1215 {

1216  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

1217  return exp(mean + (stddev * r));

1218 }

1219 

1234 FQUALIFIERS double2 rocrand_log_normal_double2(rocrand_state_threefry4x64_20* state,

1235  double mean,

1236  double stddev)

1237 {

1238  auto state1 = rocrand(state);

1239  auto state2 = rocrand(state);

1240  auto state3 = rocrand(state);

1241  auto state4 = rocrand(state);

1242 

1243  double2 r = rocrand_device::detail::normal_distribution_double2(

1244  uint4{state1, state2, state3, state4});

1245  return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

1246 }

1247  // end of group rocranddevice

1249 

1250 #endif // ROCRAND_LOG_NORMAL_H_

rocrand_log_normal_double2

FQUALIFIERS double2 rocrand_log_normal_double2(rocrand_state_philox4x32_10 *state, double mean, double stddev)

Returns two log-normally distributed double values.

Definition: rocrand_log_normal.h:186

rocrand_log_normal_double

FQUALIFIERS double rocrand_log_normal_double(rocrand_state_philox4x32_10 *state, double mean, double stddev)

Returns a log-normally distributed double values.

Definition: rocrand_log_normal.h:157

rocrand_log_normal4

FQUALIFIERS float4 rocrand_log_normal4(rocrand_state_philox4x32_10 *state, float mean, float stddev)

Returns four log-normally distributed float values.

Definition: rocrand_log_normal.h:129

rocrand_log_normal2

FQUALIFIERS float2 rocrand_log_normal2(rocrand_state_philox4x32_10 *state, float mean, float stddev)

Returns two log-normally distributed float values.

Definition: rocrand_log_normal.h:102

rocrand

FQUALIFIERS unsigned int rocrand(rocrand_state_lfsr113 *state)

Returns uniformly distributed random unsigned int value from [0; 2^32 - 1] range.

Definition: rocrand_lfsr113.h:253

rocrand_log_normal_double4

FQUALIFIERS double4 rocrand_log_normal_double4(rocrand_state_philox4x32_10 *state, double mean, double stddev)

Returns four log-normally distributed double values.

Definition: rocrand_log_normal.h:210

rocrand_log_normal

FQUALIFIERS float rocrand_log_normal(rocrand_state_philox4x32_10 *state, float mean, float stddev)

Returns a log-normally distributed float value.

Definition: rocrand_log_normal.h:69

rocrand4

FQUALIFIERS uint4 rocrand4(rocrand_state_philox4x32_10 *state)

Returns four uniformly distributed random unsigned int values from [0; 2^32 - 1] range.

Definition: rocrand_philox4x32_10.h:410

FQUALIFIERS

#define FQUALIFIERS

Shorthand for commonly used function qualifiers.

Definition: rocrand_uniform.h:31

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