/build/rocrand-7S8maf/rocrand-7.1.1/library/include/rocrand/rocrand_log_normal.h Source File

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• rocrand

rocrand_log_normal.h

1// Copyright (c) 2017-2025 Advanced Micro Devices, Inc. All rights reserved.

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14// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

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20

21#ifndef ROCRAND_LOG_NORMAL_H_

22#define ROCRAND_LOG_NORMAL_H_

23

28

29#include "rocrand/rocrand_lfsr113.h"

30#include "rocrand/rocrand_mrg31k3p.h"

31#include "rocrand/rocrand_mrg32k3a.h"

32#include "rocrand/rocrand_mtgp32.h"

33#include "rocrand/rocrand_philox4x32_10.h"

34#include "rocrand/rocrand_scrambled_sobol32.h"

35#include "rocrand/rocrand_scrambled_sobol64.h"

36#include "rocrand/rocrand_sobol32.h"

37#include "rocrand/rocrand_sobol64.h"

38#include "rocrand/rocrand_threefry2x32_20.h"

39#include "rocrand/rocrand_threefry2x64_20.h"

40#include "rocrand/rocrand_threefry4x32_20.h"

41#include "rocrand/rocrand_threefry4x64_20.h"

42#include "rocrand/rocrand_xorwow.h"

43

44#include "rocrand/rocrand_normal.h"

45

46#include <hip/hip_runtime.h>

47

48#include <math.h>

49

65#ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

66__forceinline__ __device__ __host__ float

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

68{

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

70

71 if(bm_helper::has_float(state))

72 {

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

74 }

75

76 auto state1 = rocrand(state);

77 auto state2 = rocrand(state);

78

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

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

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

82}

83#endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

84

99__forceinline__ __device__ __host__

100float2 rocrand_log_normal2(rocrand_state_philox4x32_10* state, float mean, float stddev)

101{

102 auto state1 = rocrand(state);

103 auto state2 = rocrand(state);

104

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

106 return float2 {

107 expf(mean + (stddev * r.x)),

108 expf(mean + (stddev * r.y))

109 };

110}

111

126__forceinline__ __device__ __host__

127float4 rocrand_log_normal4(rocrand_state_philox4x32_10* state, float mean, 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__

184double2 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__

208double4 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__

269float2 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_BM_NOT_IN_STATE

295__forceinline__ __device__ __host__ 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_BM_NOT_IN_STATE

315

330__forceinline__ __device__ __host__

331double2 rocrand_log_normal_double2(rocrand_state_mrg31k3p* state, double mean, double stddev)

332{

333 auto state1 = state->next();

334 auto state2 = state->next();

335

336 double2 r

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

338 state2);

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

340}

341

357#ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

358__forceinline__ __device__ __host__ float

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

360{

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

362

363 if(bm_helper::has_float(state))

364 {

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

366 }

367

368 auto state1 = state->next();

369 auto state2 = state->next();

370

371 float2 r

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

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

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

375}

376#endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

377

392__forceinline__ __device__ __host__

393float2 rocrand_log_normal2(rocrand_state_mrg32k3a* state, float mean, float stddev)

394{

395 auto state1 = state->next();

396 auto state2 = state->next();

397

398 float2 r

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

400 return float2 {

401 expf(mean + (stddev * r.x)),

402 expf(mean + (stddev * r.y))

403 };

404}

405

421#ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

422__forceinline__ __device__ __host__ double

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

424{

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

426

427 if(bm_helper::has_double(state))

428 {

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

430 }

431

432 auto state1 = state->next();

433 auto state2 = state->next();

434

435 double2 r

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

437 state2);

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

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

440}

441#endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

442

457__forceinline__ __device__ __host__

458double2 rocrand_log_normal_double2(rocrand_state_mrg32k3a* state, double mean, double stddev)

459{

460 auto state1 = state->next();

461 auto state2 = state->next();

462

463 double2 r

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

465 state2);

466 return double2 {

467 exp(mean + (stddev * r.x)),

468 exp(mean + (stddev * r.y))

469 };

470}

471

487#ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

488__forceinline__ __device__ __host__ float

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

490{

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

492

493 if(bm_helper::has_float(state))

494 {

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

496 }

497

498 auto state1 = rocrand(state);

499 auto state2 = rocrand(state);

500

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

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

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

504}

505#endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

506

521__forceinline__ __device__ __host__

522float2 rocrand_log_normal2(rocrand_state_xorwow* state, float mean, float stddev)

523{

524 auto state1 = rocrand(state);

525 auto state2 = rocrand(state);

526

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

528 return float2 {

529 expf(mean + (stddev * r.x)),

530 expf(mean + (stddev * r.y))

531 };

532}

533

549#ifndef ROCRAND_DETAIL_BM_NOT_IN_STATE

550__forceinline__ __device__ __host__ double

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

552{

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

554

555 if(bm_helper::has_double(state))

556 {

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

558 }

559

560 auto state1 = rocrand(state);

561 auto state2 = rocrand(state);

562 auto state3 = rocrand(state);

563 auto state4 = rocrand(state);

564

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

566 uint4 { state1, state2, state3, state4 }

567 );

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

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

570}

571#endif // ROCRAND_DETAIL_BM_NOT_IN_STATE

572

587__forceinline__ __device__ __host__

588double2 rocrand_log_normal_double2(rocrand_state_xorwow* state, double mean, double stddev)

589{

590 auto state1 = rocrand(state);

591 auto state2 = rocrand(state);

592 auto state3 = rocrand(state);

593 auto state4 = rocrand(state);

594

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

596 uint4 { state1, state2, state3, state4 }

597 );

598 return double2 {

599 exp(mean + (stddev * r.x)),

600 exp(mean + (stddev * r.y))

601 };

602}

603

616__forceinline__ __device__

617float rocrand_log_normal(rocrand_state_mtgp32* state, float mean, float stddev)

618{

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

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

621}

622

637__forceinline__ __device__

638float2 rocrand_log_normal2(rocrand_state_mtgp32* state, float mean, float stddev)

639{

640 auto state1 = rocrand(state);

641 auto state2 = rocrand(state);

642

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

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

645}

646

659__forceinline__ __device__

660double rocrand_log_normal_double(rocrand_state_mtgp32* state, double mean, double stddev)

661{

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

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

664}

665

680__forceinline__ __device__

681double2 rocrand_log_normal_double2(rocrand_state_mtgp32* state, double mean, double stddev)

682{

683 auto state1 = rocrand(state);

684 auto state2 = rocrand(state);

685 auto state3 = rocrand(state);

686 auto state4 = rocrand(state);

687

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

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

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

691}

692

705__forceinline__ __device__ __host__

706float rocrand_log_normal(rocrand_state_sobol32* state, float mean, float stddev)

707{

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

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

710}

711

724__forceinline__ __device__ __host__

725double rocrand_log_normal_double(rocrand_state_sobol32* state, double mean, double stddev)

726{

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

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

729}

730

743__forceinline__ __device__ __host__

744float rocrand_log_normal(rocrand_state_scrambled_sobol32* state, float mean, float stddev)

745{

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

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

748}

749

762__forceinline__ __device__ __host__

763double rocrand_log_normal_double(rocrand_state_scrambled_sobol32* state, double mean, double stddev)

764{

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

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

767}

768

781__forceinline__ __device__ __host__

782float rocrand_log_normal(rocrand_state_sobol64* state, float mean, float stddev)

783{

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

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

786}

787

800__forceinline__ __device__ __host__

801double rocrand_log_normal_double(rocrand_state_sobol64* state, double mean, double stddev)

802{

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

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

805}

806

819__forceinline__ __device__ __host__

820float rocrand_log_normal(rocrand_state_scrambled_sobol64* state, float mean, float stddev)

821{

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

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

824}

825

838__forceinline__ __device__ __host__

839double rocrand_log_normal_double(rocrand_state_scrambled_sobol64* state, double mean, double stddev)

840{

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

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

843}

844

857__forceinline__ __device__ __host__

858float rocrand_log_normal(rocrand_state_lfsr113* state, float mean, float stddev)

859{

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

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

862}

863

878__forceinline__ __device__ __host__

879float2 rocrand_log_normal2(rocrand_state_lfsr113* state, float mean, float stddev)

880{

881 auto state1 = rocrand(state);

882 auto state2 = rocrand(state);

883

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

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

886}

887

900__forceinline__ __device__ __host__

901double rocrand_log_normal_double(rocrand_state_lfsr113* state, double mean, double stddev)

902{

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

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

905}

906

921__forceinline__ __device__ __host__

922double2 rocrand_log_normal_double2(rocrand_state_lfsr113* state, double mean, double stddev)

923{

924 auto state1 = rocrand(state);

925 auto state2 = rocrand(state);

926 auto state3 = rocrand(state);

927 auto state4 = rocrand(state);

928

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

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

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

932}

933

946__forceinline__ __device__ __host__

947float rocrand_log_normal(rocrand_state_threefry2x32_20* state, double mean, double stddev)

948{

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

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

951}

952

967__forceinline__ __device__ __host__

968float2 rocrand_log_normal2(rocrand_state_threefry2x32_20* state, float mean, float stddev)

969{

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

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

972}

973

986__forceinline__ __device__ __host__

987double rocrand_log_normal_double(rocrand_state_threefry2x32_20* state, double mean, double stddev)

988{

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

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

991}

992

1007__forceinline__ __device__ __host__

1008double2 rocrand_log_normal_double2(rocrand_state_threefry2x32_20* state, double mean, double stddev)

1009{

1010 auto state1 = rocrand(state);

1011 auto state2 = rocrand(state);

1012 auto state3 = rocrand(state);

1013 auto state4 = rocrand(state);

1014

1015 double2 r = rocrand_device::detail::normal_distribution_double2(

1016 uint4{state1, state2, state3, state4});

1017 return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

1018}

1019

1032__forceinline__ __device__ __host__

1033float rocrand_log_normal(rocrand_state_threefry2x64_20* state, double mean, double stddev)

1034{

1035 float r = rocrand_device::detail::normal_distribution(rocrand(state));

1036 return expf(mean + (stddev * r));

1037}

1038

1053__forceinline__ __device__ __host__

1054float2 rocrand_log_normal2(rocrand_state_threefry2x64_20* state, float mean, float stddev)

1055{

1056 auto state1 = rocrand(state);

1057 auto state2 = rocrand(state);

1058

1059 float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

1060 return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

1061}

1062

1075__forceinline__ __device__ __host__

1076double rocrand_log_normal_double(rocrand_state_threefry2x64_20* state, double mean, double stddev)

1077{

1078 double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

1079 return exp(mean + (stddev * r));

1080}

1081

1096__forceinline__ __device__ __host__

1097double2 rocrand_log_normal_double2(rocrand_state_threefry2x64_20* state, double mean, double stddev)

1098{

1099 double2 r = rocrand_device::detail::normal_distribution_double2(rocrand2(state));

1100 return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

1101}

1102

1115__forceinline__ __device__ __host__

1116float rocrand_log_normal(rocrand_state_threefry4x32_20* state, double mean, double stddev)

1117{

1118 float r = rocrand_device::detail::normal_distribution(rocrand(state));

1119 return expf(mean + (stddev * r));

1120}

1121

1136__forceinline__ __device__ __host__

1137float2 rocrand_log_normal2(rocrand_state_threefry4x32_20* state, float mean, float stddev)

1138{

1139 auto state1 = rocrand(state);

1140 auto state2 = rocrand(state);

1141

1142 float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

1143 return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

1144}

1145

1158__forceinline__ __device__ __host__

1159double rocrand_log_normal_double(rocrand_state_threefry4x32_20* state, double mean, double stddev)

1160{

1161 double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

1162 return exp(mean + (stddev * r));

1163}

1164

1179__forceinline__ __device__ __host__

1180double2 rocrand_log_normal_double2(rocrand_state_threefry4x32_20* state, double mean, double stddev)

1181{

1182 double2 r = rocrand_device::detail::normal_distribution_double2(rocrand4(state));

1183 return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

1184}

1185

1198__forceinline__ __device__ __host__

1199float rocrand_log_normal(rocrand_state_threefry4x64_20* state, double mean, double stddev)

1200{

1201 float r = rocrand_device::detail::normal_distribution(rocrand(state));

1202 return expf(mean + (stddev * r));

1203}

1204

1219__forceinline__ __device__ __host__

1220float2 rocrand_log_normal2(rocrand_state_threefry4x64_20* state, float mean, float stddev)

1221{

1222 auto state1 = rocrand(state);

1223 auto state2 = rocrand(state);

1224

1225 float2 r = rocrand_device::detail::normal_distribution2(state1, state2);

1226 return float2{expf(mean + (stddev * r.x)), expf(mean + (stddev * r.y))};

1227}

1228

1241__forceinline__ __device__ __host__

1242double rocrand_log_normal_double(rocrand_state_threefry4x64_20* state, double mean, double stddev)

1243{

1244 double r = rocrand_device::detail::normal_distribution_double(rocrand(state));

1245 return exp(mean + (stddev * r));

1246}

1247

1262__forceinline__ __device__ __host__

1263double2 rocrand_log_normal_double2(rocrand_state_threefry4x64_20* state, double mean, double stddev)

1264{

1265 auto state1 = rocrand(state);

1266 auto state2 = rocrand(state);

1267

1268 double2 r = rocrand_device::detail::normal_distribution_double2(ulonglong2{state1, state2});

1269 return double2{exp(mean + (stddev * r.x)), exp(mean + (stddev * r.y))};

1270}

1271 // end of group rocranddevice

1273

1274#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:379

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:127

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:67

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:100

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:277