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rocrand.h
1 // Copyright (c) 2017-2026 Advanced Micro Devices, Inc. All rights reserved.
2 //
3 // Permission is hereby granted, free of charge, to any person obtaining a copy
4 // of this software and associated documentation files (the "Software"), to deal
5 // in the Software without restriction, including without limitation the rights
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7 // copies of the Software, and to permit persons to whom the Software is
8 // furnished to do so, subject to the following conditions:
9 //
10 // The above copyright notice and this permission notice shall be included in
11 // all copies or substantial portions of the Software.
12 //
13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 // THE SOFTWARE.
20 
21 #ifndef ROCRAND_H_
22 #define ROCRAND_H_
23 
29 // IWYU pragma: begin_exports
30 #include "rocrand/rocrand_discrete_types.h"
31 #include "rocrand/rocrand_version.h"
32 // IWYU pragma: end_exports
33 
34 #include "rocrand/rocrandapi.h"
35 
36 #if defined(__cplusplus)
37  #include <hip/hip_fp16.h>
38  #include <hip/hip_runtime.h>
39  #include <hip/hip_vector_types.h>
40 #else
41  #include <stddef.h>
42  #include <stdint.h>
43 typedef unsigned short __half;
44 struct ihipStream_t;
45 typedef struct ihipStream_t* hipStream_t;
46 typedef struct
47 {
48  uint32_t x, y, z, w;
49 } uint4;
50 #endif
51 
54 typedef struct rocrand_generator_base_type* rocrand_generator;
56 
59 typedef __half half;
61 
63 #define ROCRAND_DEFAULT_MAX_BLOCK_SIZE 256
64 
65 #if defined(__cplusplus)
66 extern "C" {
67 #endif /* __cplusplus */
68 
73 {
81  = 105,
87 };
89 typedef enum rocrand_status rocrand_status;
91 
96 {
106  = 408,
108  = 409,
110  = 410,
112  = 411,
118 };
122 
127 {
133  = 104,
135 };
139 
144 {
145  ROCRAND_DIRECTION_VECTORS_32_JOEKUO6 = 101,
146  ROCRAND_SCRAMBLED_DIRECTION_VECTORS_32_JOEKUO6 = 102,
147  ROCRAND_DIRECTION_VECTORS_64_JOEKUO6 = 103,
148  ROCRAND_SCRAMBLED_DIRECTION_VECTORS_64_JOEKUO6 = 104,
149 };
153 
154 // Host API function
155 
189 rocrand_status ROCRANDAPI rocrand_create_generator(rocrand_generator* generator,
190  rocrand_rng_type rng_type);
191 
212 rocrand_status ROCRANDAPI rocrand_create_generator_host(rocrand_generator* generator,
213  rocrand_rng_type rng_type);
214 
220 rocrand_status ROCRANDAPI rocrand_create_generator_host_blocking(rocrand_generator* generator,
221  rocrand_rng_type rng_type);
222 
234 rocrand_status ROCRANDAPI rocrand_destroy_generator(rocrand_generator generator);
235 
256 rocrand_status ROCRANDAPI rocrand_generate(rocrand_generator generator,
257  unsigned int* output_data,
258  size_t n);
259 
281 rocrand_status ROCRANDAPI rocrand_generate_long_long(rocrand_generator generator,
282  unsigned long long int* output_data,
283  size_t n);
284 
305 rocrand_status ROCRANDAPI rocrand_generate_char(rocrand_generator generator,
306  unsigned char* output_data,
307  size_t n);
308 
329 rocrand_status ROCRANDAPI rocrand_generate_short(rocrand_generator generator,
330  unsigned short* output_data,
331  size_t n);
332 
353 rocrand_status ROCRANDAPI rocrand_generate_uniform(rocrand_generator generator,
354  float* output_data,
355  size_t n);
356 
377 rocrand_status ROCRANDAPI rocrand_generate_uniform_double(rocrand_generator generator,
378  double* output_data,
379  size_t n);
380 
401 rocrand_status ROCRANDAPI rocrand_generate_uniform_half(rocrand_generator generator,
402  half* output_data,
403  size_t n);
404 
425  rocrand_generator generator, float* output_data, size_t n, float mean, float stddev);
426 
447  rocrand_generator generator, double* output_data, size_t n, double mean, double stddev);
448 
469  rocrand_generator generator, half* output_data, size_t n, half mean, half stddev);
470 
491  rocrand_generator generator, float* output_data, size_t n, float mean, float stddev);
492 
513  rocrand_generator generator, double* output_data, size_t n, double mean, double stddev);
514 
535  rocrand_generator generator, half* output_data, size_t n, half mean, half stddev);
536 
556 rocrand_status ROCRANDAPI rocrand_generate_poisson(rocrand_generator generator,
557  unsigned int* output_data,
558  size_t n,
559  double lambda);
560 
578 rocrand_status ROCRANDAPI rocrand_initialize_generator(rocrand_generator generator);
579 
593 rocrand_status ROCRANDAPI rocrand_set_stream(rocrand_generator generator, hipStream_t stream);
594 
620 rocrand_status ROCRANDAPI rocrand_set_seed(rocrand_generator generator, unsigned long long seed);
621 
644 rocrand_status ROCRANDAPI rocrand_set_seed_uint4(rocrand_generator generator, uint4 seed);
645 
666 rocrand_status ROCRANDAPI rocrand_set_offset(rocrand_generator generator,
667  unsigned long long offset);
668 
697 rocrand_status ROCRANDAPI rocrand_set_ordering(rocrand_generator generator, rocrand_ordering order);
698 
717 rocrand_status ROCRANDAPI rocrand_set_quasi_random_generator_dimensions(rocrand_generator generator,
718  unsigned int dimensions);
719 
733 
749  double lambda, rocrand_discrete_distribution* discrete_distribution);
750 
769 rocrand_status ROCRANDAPI
770  rocrand_create_discrete_distribution(const double* probabilities,
771  unsigned int size,
772  unsigned int offset,
773  rocrand_discrete_distribution* discrete_distribution);
774 
787 rocrand_status ROCRANDAPI
789 
801 rocrand_status ROCRANDAPI rocrand_get_direction_vectors32(const unsigned int** vectors,
803 
815 rocrand_status ROCRANDAPI rocrand_get_direction_vectors64(const unsigned long long** vectors,
817 
826 rocrand_status ROCRANDAPI rocrand_get_scramble_constants32(const unsigned int** constants);
827 
836 rocrand_status ROCRANDAPI rocrand_get_scramble_constants64(const unsigned long long** constants);
837 
838 #if defined(__cplusplus)
839 }
840 #endif /* __cplusplus */
841  // end of group rocrandhost
843 
844 #endif // ROCRAND_H_
rocrand_status ROCRANDAPI rocrand_create_poisson_distribution(double lambda, rocrand_discrete_distribution *discrete_distribution)
Construct the histogram for a Poisson distribution.
rocrand_status ROCRANDAPI rocrand_generate_short(rocrand_generator generator, unsigned short *output_data, size_t n)
Generates uniformly distributed 16-bit unsigned integers.
rocrand_status ROCRANDAPI rocrand_generate_normal(rocrand_generator generator, float *output_data, size_t n, float mean, float stddev)
Generates normally distributed float values.
rocrand_status ROCRANDAPI rocrand_set_offset(rocrand_generator generator, unsigned long long offset)
Sets the offset of a random number generator.
rocrand_status ROCRANDAPI rocrand_create_generator_host_blocking(rocrand_generator *generator, rocrand_rng_type rng_type)
Creates a new host random number generator, similar to rocrand_create_generator_host....
rocrand_status ROCRANDAPI rocrand_initialize_generator(rocrand_generator generator)
Initializes the generator's state on GPU or host.
rocrand_status ROCRANDAPI rocrand_get_direction_vectors32(const unsigned int **vectors, rocrand_direction_vector_set set)
Get the vector for 32-bit (scrambled-)sobol generation.
rocrand_status ROCRANDAPI rocrand_create_generator_host(rocrand_generator *generator, rocrand_rng_type rng_type)
Creates a new host random number generator.
rocrand_status ROCRANDAPI rocrand_generate_normal_double(rocrand_generator generator, double *output_data, size_t n, double mean, double stddev)
Generates normally distributed double values.
rocrand_ordering
rocRAND generator ordering
Definition: rocrand.h:127
rocrand_status ROCRANDAPI rocrand_generate_char(rocrand_generator generator, unsigned char *output_data, size_t n)
Generates uniformly distributed 8-bit unsigned integers.
rocrand_status ROCRANDAPI rocrand_generate_log_normal(rocrand_generator generator, float *output_data, size_t n, float mean, float stddev)
Generates log-normally distributed float values.
rocrand_status
rocRAND function call status type
Definition: rocrand.h:73
rocrand_status ROCRANDAPI rocrand_create_generator(rocrand_generator *generator, rocrand_rng_type rng_type)
Creates a new random number generator.
rocrand_rng_type
rocRAND generator type
Definition: rocrand.h:96
rocrand_status ROCRANDAPI rocrand_generate_long_long(rocrand_generator generator, unsigned long long int *output_data, size_t n)
Generates uniformly distributed 64-bit unsigned integers.
rocrand_status ROCRANDAPI rocrand_generate_uniform_half(rocrand_generator generator, half *output_data, size_t n)
Generates uniformly distributed half-precision floating-point values.
rocrand_status ROCRANDAPI rocrand_set_stream(rocrand_generator generator, hipStream_t stream)
Sets the current stream for kernel launches.
rocrand_status ROCRANDAPI rocrand_generate_normal_half(rocrand_generator generator, half *output_data, size_t n, half mean, half stddev)
Generates normally distributed half values.
rocrand_status ROCRANDAPI rocrand_get_scramble_constants32(const unsigned int **constants)
Get the scramble constants for 32-bit scrambled sobol generation.
rocrand_status ROCRANDAPI rocrand_generate_uniform_double(rocrand_generator generator, double *output_data, size_t n)
Generates uniformly distributed double-precision floating-point values.
rocrand_status ROCRANDAPI rocrand_get_direction_vectors64(const unsigned long long **vectors, rocrand_direction_vector_set set)
Get the vector for 64-bit (scrambled-)sobol generation.
rocrand_status ROCRANDAPI rocrand_generate_uniform(rocrand_generator generator, float *output_data, size_t n)
Generates uniformly distributed float values.
rocrand_status ROCRANDAPI rocrand_create_discrete_distribution(const double *probabilities, unsigned int size, unsigned int offset, rocrand_discrete_distribution *discrete_distribution)
Construct the histogram for a custom discrete distribution.
rocrand_status ROCRANDAPI rocrand_set_ordering(rocrand_generator generator, rocrand_ordering order)
Sets the ordering of a random number generator.
rocrand_status ROCRANDAPI rocrand_generate_poisson(rocrand_generator generator, unsigned int *output_data, size_t n, double lambda)
Generates Poisson-distributed 32-bit unsigned integers.
rocrand_status ROCRANDAPI rocrand_set_quasi_random_generator_dimensions(rocrand_generator generator, unsigned int dimensions)
Set the number of dimensions of a quasi-random number generator.
rocrand_status ROCRANDAPI rocrand_get_version(int *version)
Returns the version number of the library.
rocrand_status ROCRANDAPI rocrand_set_seed_uint4(rocrand_generator generator, uint4 seed)
Sets the seeds of a pseudo-random number generator.
rocrand_status ROCRANDAPI rocrand_generate(rocrand_generator generator, unsigned int *output_data, size_t n)
Generates uniformly distributed 32-bit unsigned integers.
rocrand_direction_vector_set
rocRAND vector set
Definition: rocrand.h:144
rocrand_status ROCRANDAPI rocrand_destroy_discrete_distribution(rocrand_discrete_distribution discrete_distribution)
Destroy the histogram array for a discrete distribution.
rocrand_status ROCRANDAPI rocrand_generate_log_normal_double(rocrand_generator generator, double *output_data, size_t n, double mean, double stddev)
Generates log-normally distributed double values.
rocrand_status ROCRANDAPI rocrand_set_seed(rocrand_generator generator, unsigned long long seed)
Sets the seed of a pseudo-random number generator.
rocrand_status ROCRANDAPI rocrand_get_scramble_constants64(const unsigned long long **constants)
Get the scramble constants for 64-bit scrambled sobol generation.
rocrand_status ROCRANDAPI rocrand_generate_log_normal_half(rocrand_generator generator, half *output_data, size_t n, half mean, half stddev)
Generates log-normally distributed half values.
rocrand_status ROCRANDAPI rocrand_destroy_generator(rocrand_generator generator)
Destroys random number generator.
@ ROCRAND_ORDERING_PSEUDO_DEFAULT
Default ordering for pseudorandom results.
Definition: rocrand.h:129
@ ROCRAND_ORDERING_QUASI_DEFAULT
n-dimensional ordering for quasirandom results
Definition: rocrand.h:134
@ ROCRAND_ORDERING_PSEUDO_SEEDED
Fast lower quality pseudorandom results.
Definition: rocrand.h:130
@ ROCRAND_ORDERING_PSEUDO_DYNAMIC
Adjust to the device executing the generator. The global memory usage may be higher than with the oth...
Definition: rocrand.h:132
@ ROCRAND_ORDERING_PSEUDO_BEST
Best ordering for pseudorandom results.
Definition: rocrand.h:128
@ ROCRAND_ORDERING_PSEUDO_LEGACY
Legacy ordering for pseudorandom results.
Definition: rocrand.h:131
@ ROCRAND_STATUS_NOT_CREATED
Generator was not created using rocrand_create_generator.
Definition: rocrand.h:76
@ ROCRAND_STATUS_LAUNCH_FAILURE
Kernel launch failure.
Definition: rocrand.h:85
@ ROCRAND_STATUS_VERSION_MISMATCH
Header file and linked library version do not match.
Definition: rocrand.h:75
@ ROCRAND_STATUS_LENGTH_NOT_MULTIPLE
Definition: rocrand.h:80
@ ROCRAND_STATUS_DOUBLE_PRECISION_REQUIRED
GPU does not have double precision.
Definition: rocrand.h:84
@ ROCRAND_STATUS_SUCCESS
No errors.
Definition: rocrand.h:74
@ ROCRAND_STATUS_INTERNAL_ERROR
Internal library error.
Definition: rocrand.h:86
@ ROCRAND_STATUS_OUT_OF_RANGE
Argument out of range.
Definition: rocrand.h:79
@ ROCRAND_STATUS_ALLOCATION_FAILED
Memory allocation failed during execution.
Definition: rocrand.h:77
@ ROCRAND_STATUS_TYPE_ERROR
Generator type is wrong.
Definition: rocrand.h:78
@ ROCRAND_RNG_PSEUDO_DEFAULT
Default pseudorandom generator.
Definition: rocrand.h:97
@ ROCRAND_RNG_QUASI_SOBOL64
Sobol64 quasirandom generator.
Definition: rocrand.h:116
@ ROCRAND_RNG_PSEUDO_LFSR113
LFSR113 pseudorandom generator.
Definition: rocrand.h:103
@ ROCRAND_RNG_PSEUDO_THREEFRY2_64_20
ThreeFry 64 bit state size 2 pseudorandom generator.
Definition: rocrand.h:107
@ ROCRAND_RNG_QUASI_DEFAULT
Default quasirandom generator.
Definition: rocrand.h:113
@ ROCRAND_RNG_PSEUDO_XORWOW
XORWOW pseudorandom generator.
Definition: rocrand.h:98
@ ROCRAND_RNG_PSEUDO_THREEFRY4_32_20
ThreeFry 32 bit state size 4 pseudorandom generator.
Definition: rocrand.h:109
@ ROCRAND_RNG_PSEUDO_MRG31K3P
MRG31k3p pseudorandom generator.
Definition: rocrand.h:102
@ ROCRAND_RNG_PSEUDO_MT19937
Mersenne Twister MT19937 pseudorandom generator.
Definition: rocrand.h:104
@ ROCRAND_RNG_PSEUDO_PHILOX4_32_10
PHILOX-4x32-10 pseudorandom generator.
Definition: rocrand.h:101
@ ROCRAND_RNG_PSEUDO_THREEFRY2_32_20
ThreeFry 32 bit state size 2 pseudorandom generator.
Definition: rocrand.h:105
@ ROCRAND_RNG_PSEUDO_THREEFRY4_64_20
ThreeFry 64 bit state size 4 pseudorandom generator.
Definition: rocrand.h:111
@ ROCRAND_RNG_PSEUDO_MTGP32
Mersenne Twister MTGP32 pseudorandom generator.
Definition: rocrand.h:100
@ ROCRAND_RNG_QUASI_SOBOL32
Sobol32 quasirandom generator.
Definition: rocrand.h:114
@ ROCRAND_RNG_QUASI_SCRAMBLED_SOBOL32
Scrambled Sobol32 quasirandom generator.
Definition: rocrand.h:115
@ ROCRAND_RNG_QUASI_SCRAMBLED_SOBOL64
Scrambled Sobol64 quasirandom generator.
Definition: rocrand.h:117
@ ROCRAND_RNG_PSEUDO_MRG32K3A
MRG32k3a pseudorandom generator.
Definition: rocrand.h:99
int version()
Returns rocRAND version.
Definition: rocrand.hpp:3773
Represents a discrete probability distribution.
Definition: rocrand_discrete_types.h:26