MTGP
1.1.1
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Mersenne Twister for Graphic Processors (mtgp32), which generates 32-bit unsigned integers and single precision floating point numbers based on IEEE 754 format. More...
#include <string.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include "mtgp32-fast.h"
Functions | |
static uint32_t | ini_func1 (uint32_t x) |
This function represents a function used in the initialization by mtgp32_init_by_array() and mtgp32_init_by_str(). | |
static uint32_t | ini_func2 (uint32_t x) |
This function represents a function used in the initialization by mtgp32_init_by_array() and mtgp32_init_by_str(). | |
static int | alloc_state (mtgp32_fast_t *mtgp32, const mtgp32_params_fast_t *para) |
This function allocates the internal state vector. | |
int | mtgp32_init (mtgp32_fast_t *mtgp32, const mtgp32_params_fast_t *para, uint32_t seed) |
This function allocates and initializes the internal state array with a 32-bit integer seed. | |
void | mtgp32_init_state (uint32_t array[], const mtgp32_params_fast_t *para, uint32_t seed) |
This function initializes the internal state array with a 32-bit integer seed. | |
int | mtgp32_init_by_array (mtgp32_fast_t *mtgp32, const mtgp32_params_fast_t *para, uint32_t *array, int length) |
This function allocates and initializes the internal state array with a 32-bit integer array. | |
int | mtgp32_init_by_str (mtgp32_fast_t *mtgp32, const mtgp32_params_fast_t *para, char *array) |
This function allocates and initializes the internal state array with a character array. | |
void | mtgp32_free (mtgp32_fast_t *mtgp32) |
This releases the memory allocated by mtgp32_init(), mtgp32_init_by_array(), mtgp32_init_by_str(). | |
void | mtgp32_print_idstring (const mtgp32_fast_t *mtgp32, FILE *fp) |
This function prints the Mersenne exponent and SHA1 of characteristic polynomial of generators state transition function. |
Variables | |
static const uint32_t | non_zero = 0x4d544750 |
Mersenne Twister for Graphic Processors (mtgp32), which generates 32-bit unsigned integers and single precision floating point numbers based on IEEE 754 format.
Copyright (C) 2009 Mutsuo Saito, Makoto Matsumoto and Hiroshima University. All rights reserved.
The new BSD License is applied to this software, see LICENSE.txt
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This function allocates the internal state vector.
[in,out] | mtgp32 | MTGP all in one structure. |
[in] | para | a parameter structure. |
References MTGP32_STATUS_FAST_T::large_mask, MTGP32_STATUS_FAST_T::large_size, MTGP32_PARAMS_FAST_T::mexp, MTGP32_FAST_T::params, MTGP32_STATUS_FAST_T::size, and MTGP32_FAST_T::status.
Referenced by mtgp32_init(), mtgp32_init_by_array(), and mtgp32_init_by_str().
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This function represents a function used in the initialization by mtgp32_init_by_array() and mtgp32_init_by_str().
[in] | x | 32-bit integer |
Referenced by mtgp32_init_by_array(), and mtgp32_init_by_str().
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This function represents a function used in the initialization by mtgp32_init_by_array() and mtgp32_init_by_str().
[in] | x | 32-bit integer |
Referenced by mtgp32_init_by_array(), and mtgp32_init_by_str().
void mtgp32_free | ( | mtgp32_fast_t * | mtgp32 | ) |
This releases the memory allocated by mtgp32_init(), mtgp32_init_by_array(), mtgp32_init_by_str().
[in,out] | mtgp32 | MTGP all in one structure. |
References MTGP32_FAST_T::status.
int mtgp32_init | ( | mtgp32_fast_t * | mtgp32, |
const mtgp32_params_fast_t * | para, | ||
uint32_t | seed | ||
) |
This function allocates and initializes the internal state array with a 32-bit integer seed.
The allocated memory should be freed by calling mtgp32_free(). para should be one of the elements in the parameter table (mtgp32-param-ref.c).
[out] | mtgp32 | MTGP structure. |
[in] | para | parameter structure |
[in] | seed | a 32-bit integer used as the seed. |
References alloc_state(), MTGP32_STATUS_FAST_T::array, MTGP32_STATUS_FAST_T::idx, mtgp32_init_state(), MTGP32_STATUS_FAST_T::size, and MTGP32_FAST_T::status.
Referenced by mtgp32_fast_jump().
int mtgp32_init_by_array | ( | mtgp32_fast_t * | mtgp32, |
const mtgp32_params_fast_t * | para, | ||
uint32_t * | array, | ||
int | length | ||
) |
This function allocates and initializes the internal state array with a 32-bit integer array.
The allocated memory should be freed by calling mtgp32_free(). para should be one of the elements in the parameter table (mtgp32-param-ref.c).
[out] | mtgp32 | MTGP structure. |
[in] | para | parameter structure |
[in] | array | a 32-bit integer array used as a seed. |
[in] | length | length of the array. |
References alloc_state(), MTGP32_STATUS_FAST_T::array, MTGP32_STATUS_FAST_T::idx, ini_func1(), ini_func2(), MTGP32_PARAMS_FAST_T::mexp, non_zero, MTGP32_FAST_T::params, MTGP32_STATUS_FAST_T::size, MTGP32_FAST_T::status, and MTGP32_PARAMS_FAST_T::tbl.
int mtgp32_init_by_str | ( | mtgp32_fast_t * | mtgp32, |
const mtgp32_params_fast_t * | para, | ||
char * | array | ||
) |
This function allocates and initializes the internal state array with a character array.
The allocated memory should be freed by calling mtgp32_free(). para should be one of the elements in the parameter table (mtgp32-param-ref.c). This is the same algorithm with mtgp32_init_by_array(), but hope to be more useful.
[out] | mtgp32 | MTGP structure. |
[in] | para | parameter structure |
[in] | array | a character array used as a seed. (terminated by zero.) |
References alloc_state(), MTGP32_STATUS_FAST_T::array, MTGP32_STATUS_FAST_T::idx, ini_func1(), ini_func2(), MTGP32_PARAMS_FAST_T::mexp, non_zero, MTGP32_FAST_T::params, MTGP32_STATUS_FAST_T::size, MTGP32_FAST_T::status, and MTGP32_PARAMS_FAST_T::tbl.
void mtgp32_init_state | ( | uint32_t | array[], |
const mtgp32_params_fast_t * | para, | ||
uint32_t | seed | ||
) |
This function initializes the internal state array with a 32-bit integer seed.
The allocated memory should be freed by calling mtgp32_free(). para should be one of the elements in the parameter table (mtgp32-param-ref.c).
This function is call by cuda program, because cuda program uses another structure and another allocation method.
[out] | array | MTGP internal status vector. |
[in] | para | parameter structure |
[in] | seed | a 32-bit integer used as the seed. |
References MTGP32_PARAMS_FAST_T::mexp, and MTGP32_PARAMS_FAST_T::tbl.
Referenced by mtgp32_init().
void mtgp32_print_idstring | ( | const mtgp32_fast_t * | mtgp32, |
FILE * | fp | ||
) |
This function prints the Mersenne exponent and SHA1 of characteristic polynomial of generators state transition function.
[in] | mtgp32 | MTGP all in one structure. |
[in,out] | fp | FILE pointer. |
References MTGP32_PARAMS_FAST_T::mexp, MTGP32_FAST_T::params, and MTGP32_PARAMS_FAST_T::poly_sha1.
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Referenced by mtgp32_init_by_array(), and mtgp32_init_by_str().