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rocrand_log_normal.h

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20 

21 #ifndef ROCRAND_LOG_NORMAL_H_

22 #define ROCRAND_LOG_NORMAL_H_

23 

29 #include <math.h>

30 

31 #include "rocrand/rocrand_lfsr113.h"

32 #include "rocrand/rocrand_mrg31k3p.h"

33 #include "rocrand/rocrand_mrg32k3a.h"

34 #include "rocrand/rocrand_mtgp32.h"

35 #include "rocrand/rocrand_philox4x32_10.h"

36 #include "rocrand/rocrand_scrambled_sobol32.h"

37 #include "rocrand/rocrand_scrambled_sobol64.h"

38 #include "rocrand/rocrand_sobol32.h"

39 #include "rocrand/rocrand_sobol64.h"

40 #include "rocrand/rocrand_threefry2x32_20.h"

41 #include "rocrand/rocrand_threefry2x64_20.h"

42 #include "rocrand/rocrand_threefry4x32_20.h"

43 #include "rocrand/rocrand_threefry4x64_20.h"

44 #include "rocrand/rocrand_xorwow.h"

45 

46 #include "rocrand/rocrand_normal.h"

47 

63 #ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

64 __forceinline__ __device__ __host__ float

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

66 {

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

68 

69  if(bm_helper::has_float(state))

70  {

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

72  }

73 

74  auto state1 = rocrand(state);

75  auto state2 = rocrand(state);

76 

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

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

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

80 }

81 #endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

82 

97 __forceinline__ __device__ __host__ float2 rocrand_log_normal2(rocrand_state_philox4x32_10* state,

98  float mean,

99  float stddev)

100 {

101  auto state1 = rocrand(state);

102  auto state2 = rocrand(state);

103 

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

105  return float2 {

106  expf(mean + (stddev * r.x)),

107  expf(mean + (stddev * r.y))

108  };

109 }

110 

125 __forceinline__ __device__ __host__ float4 rocrand_log_normal4(rocrand_state_philox4x32_10* state,

126  float mean,

127  float stddev)

128 {

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

130  return float4 {

131  expf(mean + (stddev * r.x)),

132  expf(mean + (stddev * r.y)),

133  expf(mean + (stddev * r.z)),

134  expf(mean + (stddev * r.w))

135  };

136 }

137 

153 #ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

154 __forceinline__ __device__ __host__ double

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

156 {

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

158 

159  if(bm_helper::has_double(state))

160  {

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

162  }

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

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

165  return exp(mean + r.x * stddev);

166 }

167 #endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

168 

183 __forceinline__ __device__ __host__ double2

184  rocrand_log_normal_double2(rocrand_state_philox4x32_10* state, double mean, double stddev)

185 {

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

187  return double2 {

188  exp(mean + (stddev * r.x)),

189  exp(mean + (stddev * r.y))

190  };

191 }

192 

207 __forceinline__ __device__ __host__ double4

208  rocrand_log_normal_double4(rocrand_state_philox4x32_10* state, double mean, double stddev)

209 {

210  double2 r1, r2;

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

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

213  return double4 {

214  r1.x, r1.y, r2.x, r2.y

215  };

216 }

217 

233 #ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

234 __forceinline__ __device__ __host__ float

235  rocrand_log_normal(rocrand_state_mrg31k3p* state, float mean, float stddev)

236 {

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

238 

239  if(bm_helper::has_float(state))

240  {

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

242  }

243 

244  auto state1 = state->next();

245  auto state2 = state->next();

246 

247  float2 r

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

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

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

251 }

252 #endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

253 

268 __forceinline__ __device__ __host__ float2 rocrand_log_normal2(rocrand_state_mrg31k3p* state,

269  float mean,

270  float stddev)

271 {

272  auto state1 = state->next();

273  auto state2 = state->next();

274 

275  float2 r

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

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

278 }

279 

295 #ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

296 __forceinline__ __device__ __host__ double

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

298 {

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

300 

301  if(bm_helper::has_double(state))

302  {

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

304  }

305 

306  auto state1 = state->next();

307  auto state2 = state->next();

308 

309  double2 r

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

311  state2);

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

313  return exp(mean + r.x * stddev);

314 }

315 #endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

316 

331 __forceinline__ __device__ __host__ double2

332  rocrand_log_normal_double2(rocrand_state_mrg31k3p* state, double mean, 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_BM_NOT_IN_STATE

359 __forceinline__ __device__ __host__ float

360  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_BM_NOT_IN_STATE

378 

393 __forceinline__ __device__ __host__ float2 rocrand_log_normal2(rocrand_state_mrg32k3a* state,

394  float mean,

395  float stddev)

396 {

397  auto state1 = state->next();

398  auto state2 = state->next();

399 

400  float2 r

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

402  return float2 {

403  expf(mean + (stddev * r.x)),

404  expf(mean + (stddev * r.y))

405  };

406 }

407 

423 #ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

424 __forceinline__ __device__ __host__ double

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

426 {

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

428 

429  if(bm_helper::has_double(state))

430  {

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

432  }

433 

434  auto state1 = state->next();

435  auto state2 = state->next();

436 

437  double2 r

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

439  state2);

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

441  return exp(mean + r.x * stddev);

442 }

443 #endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

444 

459 __forceinline__ __device__ __host__ double2

460  rocrand_log_normal_double2(rocrand_state_mrg32k3a* state, double mean, double stddev)

461 {

462  auto state1 = state->next();

463  auto state2 = state->next();

464 

465  double2 r

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

467  state2);

468  return double2 {

469  exp(mean + (stddev * r.x)),

470  exp(mean + (stddev * r.y))

471  };

472 }

473 

489 #ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

490 __forceinline__ __device__ __host__ float

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

492 {

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

494 

495  if(bm_helper::has_float(state))

496  {

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

498  }

499 

500  auto state1 = rocrand(state);

501  auto state2 = rocrand(state);

502 

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

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

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

506 }

507 #endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

508 

523 __forceinline__ __device__ __host__ float2 rocrand_log_normal2(rocrand_state_xorwow* state,

524  float mean,

525  float stddev)

526 {

527  auto state1 = rocrand(state);

528  auto state2 = rocrand(state);

529 

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

531  return float2 {

532  expf(mean + (stddev * r.x)),

533  expf(mean + (stddev * r.y))

534  };

535 }

536 

552 #ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

553 __forceinline__ __device__ __host__ double

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

555 {

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

557 

558  if(bm_helper::has_double(state))

559  {

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

561  }

562 

563  auto state1 = rocrand(state);

564  auto state2 = rocrand(state);

565  auto state3 = rocrand(state);

566  auto state4 = rocrand(state);

567 

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

569  uint4 { state1, state2, state3, state4 }

570  );

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

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

573 }

574 #endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

575 

590 __forceinline__ __device__ __host__ double2 rocrand_log_normal_double2(rocrand_state_xorwow* state,

591  double mean,

592  double stddev)

593 {

594  auto state1 = rocrand(state);

595  auto state2 = rocrand(state);

596  auto state3 = rocrand(state);

597  auto state4 = rocrand(state);

598 

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

600  uint4 { state1, state2, state3, state4 }

601  );

602  return double2 {

603  exp(mean + (stddev * r.x)),

604  exp(mean + (stddev * r.y))

605  };

606 }

607 

620 __forceinline__ __device__ float

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

622 {

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

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

625 }

626 

641 __forceinline__ __device__ float2 rocrand_log_normal2(rocrand_state_mtgp32* state,

642  float mean,

643  float stddev)

644 {

645  auto state1 = rocrand(state);

646  auto state2 = rocrand(state);

647 

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

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

650 }

651 

664 __forceinline__ __device__ double

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

666 {

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

668  return exp(mean + (stddev * r));

669 }

670 

685 __forceinline__ __device__ double2 rocrand_log_normal_double2(rocrand_state_mtgp32* state,

686  double mean,

687  double stddev)

688 {

689  auto state1 = rocrand(state);

690  auto state2 = rocrand(state);

691  auto state3 = rocrand(state);

692  auto state4 = rocrand(state);

693 

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

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

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

697 }

698 

711 __forceinline__ __device__ __host__ float

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

713 {

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

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

716 }

717 

730 __forceinline__ __device__ __host__ double

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

732 {

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

734  return exp(mean + (stddev * r));

735 }

736 

749 __forceinline__ __device__ __host__ float

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

751 {

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

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

754 }

755 

768 __forceinline__ __device__ __host__ double

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

770 {

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

772  return exp(mean + (stddev * r));

773 }

774 

787 __forceinline__ __device__ __host__ float

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

789 {

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

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

792 }

793 

806 __forceinline__ __device__ __host__ double

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

808 {

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

810  return exp(mean + (stddev * r));

811 }

812 

825 __forceinline__ __device__ __host__ float

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

827 {

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

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

830 }

831 

844 __forceinline__ __device__ __host__ double

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

846 {

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

848  return exp(mean + (stddev * r));

849 }

850 

863 __forceinline__ __device__ __host__ float

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

865 {

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

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

868 }

869 

884 __forceinline__ __device__ __host__ float2 rocrand_log_normal2(rocrand_state_lfsr113* state,

885  float mean,

886  float stddev)

887 {

888  auto state1 = rocrand(state);

889  auto state2 = rocrand(state);

890 

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

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

893 }

894 

907 __forceinline__ __device__ __host__ double

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

909 {

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

911  return exp(mean + (stddev * r));

912 }

913 

928 __forceinline__ __device__ __host__ double2 rocrand_log_normal_double2(rocrand_state_lfsr113* state,

929  double mean,

930  double stddev)

931 {

932  auto state1 = rocrand(state);

933  auto state2 = rocrand(state);

934  auto state3 = rocrand(state);

935  auto state4 = rocrand(state);

936 

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

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

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

940 }

941 

954 __forceinline__ __device__ __host__ float

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

956 {

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

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

959 }

960 

975 __forceinline__ __device__ __host__ float2 rocrand_log_normal2(rocrand_state_threefry2x32_20* state,

976  float mean,

977  float stddev)

978 {

979  float2 r = rocrand_device::detail::normal_distribution2(rocrand2(state));

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

981 }

982 

995 __forceinline__ __device__ __host__ double

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

997 {

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

999  return exp(mean + (stddev * r));

1000 }

1001 

1016 __forceinline__ __device__ __host__ double2

1017  rocrand_log_normal_double2(rocrand_state_threefry2x32_20* state, double mean, double stddev)

1018 {

1019  auto state1 = rocrand(state);

1020  auto state2 = rocrand(state);

1021  auto state3 = rocrand(state);

1022  auto state4 = rocrand(state);

1023 

1024  double2 r = rocrand_device::detail::normal_distribution_double2(

1025  uint4{state1, state2, state3, state4});

1026  return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

1027 }

1028 

1041 __forceinline__ __device__ __host__ float

1042  rocrand_log_normal(rocrand_state_threefry2x64_20* state, double mean, double stddev)

1043 {

1044  float r = rocrand_device::detail::normal_distribution(rocrand(state));

1045  return expf(mean + (stddev * r));

1046 }

1047 

1062 __forceinline__ __device__ __host__ float2 rocrand_log_normal2(rocrand_state_threefry2x64_20* state,

1063  float mean,

1064  float stddev)

1065 {

1066  auto state1 = rocrand(state);

1067  auto state2 = rocrand(state);

1068 

1069  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

1070  return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

1071 }

1072 

1085 __forceinline__ __device__ __host__ double

1086  rocrand_log_normal_double(rocrand_state_threefry2x64_20* state, double mean, double stddev)

1087 {

1088  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

1089  return exp(mean + (stddev * r));

1090 }

1091 

1106 __forceinline__ __device__ __host__ double2

1107  rocrand_log_normal_double2(rocrand_state_threefry2x64_20* state, double mean, double stddev)

1108 {

1109  double2 r = rocrand_device::detail::normal_distribution_double2(rocrand2(state));

1110  return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

1111 }

1112 

1125 __forceinline__ __device__ __host__ float

1126  rocrand_log_normal(rocrand_state_threefry4x32_20* state, double mean, double stddev)

1127 {

1128  float r = rocrand_device::detail::normal_distribution(rocrand(state));

1129  return expf(mean + (stddev * r));

1130 }

1131 

1146 __forceinline__ __device__ __host__ float2 rocrand_log_normal2(rocrand_state_threefry4x32_20* state,

1147  float mean,

1148  float stddev)

1149 {

1150  auto state1 = rocrand(state);

1151  auto state2 = rocrand(state);

1152 

1153  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

1154  return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

1155 }

1156 

1169 __forceinline__ __device__ __host__ double

1170  rocrand_log_normal_double(rocrand_state_threefry4x32_20* state, double mean, double stddev)

1171 {

1172  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

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

1174 }

1175 

1190 __forceinline__ __device__ __host__ double2

1191  rocrand_log_normal_double2(rocrand_state_threefry4x32_20* state, double mean, double stddev)

1192 {

1193  double2 r = rocrand_device::detail::normal_distribution_double2(rocrand4(state));

1194  return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

1195 }

1196 

1209 __forceinline__ __device__ __host__ float

1210  rocrand_log_normal(rocrand_state_threefry4x64_20* state, double mean, double stddev)

1211 {

1212  float r = rocrand_device::detail::normal_distribution(rocrand(state));

1213  return expf(mean + (stddev * r));

1214 }

1215 

1230 __forceinline__ __device__ __host__ float2 rocrand_log_normal2(rocrand_state_threefry4x64_20* state,

1231  float mean,

1232  float stddev)

1233 {

1234  auto state1 = rocrand(state);

1235  auto state2 = rocrand(state);

1236 

1237  float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

1238  return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

1239 }

1240 

1253 __forceinline__ __device__ __host__ double

1254  rocrand_log_normal_double(rocrand_state_threefry4x64_20* state, double mean, double stddev)

1255 {

1256  double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

1257  return exp(mean + (stddev * r));

1258 }

1259 

1274 __forceinline__ __device__ __host__ double2

1275  rocrand_log_normal_double2(rocrand_state_threefry4x64_20* state, double mean, double stddev)

1276 {

1277  auto state1 = rocrand(state);

1278  auto state2 = rocrand(state);

1279 

1280  double2 r = rocrand_device::detail::normal_distribution_double2(ulonglong2{state1, state2});

1281  return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

1282 }

1283  // end of group rocranddevice

1285 

1286 #endif // ROCRAND_LOG_NORMAL_H_

rocrand_log_normal_double

__forceinline__ __device__ __host__ 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:155

rocrand4

__forceinline__ __device__ __host__ 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:386

rocrand_log_normal4

__forceinline__ __device__ __host__ 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:125

rocrand_log_normal

__forceinline__ __device__ __host__ 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:65

rocrand_log_normal2

__forceinline__ __device__ __host__ 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:97

rocrand_log_normal_double4

__forceinline__ __device__ __host__ 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:208

rocrand_log_normal_double2

__forceinline__ __device__ __host__ 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:184

rocrand

__forceinline__ __device__ __host__ unsigned int rocrand(rocrand_state_lfsr113 *state)

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

Definition: rocrand_lfsr113.h:274