random.h File Reference

Header file for random.c. More...

#include <stdlib.h>

Go to the source code of this file.

Macros
#define	random_init(data, seed)
#define	random_uniform(data)
#define	random_normal(data)
#define	random_uniform_simd(data, n, r)
#define	random_normal_simd(data, n, r)

Typedefs
typedef void *	random_data

Functions
double	random_drand48_normal ()
	Initialize random generator which uses the linear congruential algorithm and 48-bit integer arithmetic.
void	random_drand48_uniform_simd (int n, double *r)
	Vectorised sampling from uniform distribution.
void	random_drand48_normal_simd (int n, double *r)
	Vectorised sampling from normal distribution.

Detailed Description

Header file for random.c.

Definition in file random.h.

Macro Definition Documentation

random_init

#define random_init	(		data,
			seed )

Value:

srand48(seed)

Initialize random number generator

Definition at line 107 of file random.h.

random_uniform

#define random_uniform

(

data

)

Value:

drand48()

Sample random number [0.0,1.0) from from uniform distribution

Definition at line 109 of file random.h.

random_normal

#define random_normal

(

data

)

Value:

random_drand48_normal()

Sample from Normal distribution

Definition at line 111 of file random.h.

random_uniform_simd

#define random_uniform_simd	(		data,
			n,
			r )

Value:

random_drand48_uniform_simd(n, r)

Same as random_uniform but vectorised

Definition at line 113 of file random.h.

random_normal_simd

#define random_normal_simd	(		data,
			n,
			r )

Value:

random_drand48_normal_simd(n, r)

Same as random_normal but vectorised

Definition at line 115 of file random.h.

Typedef Documentation

random_data

typedef void* random_data

Data used by the random number generator

Definition at line 100 of file random.h.

Function Documentation

random_drand48_normal()

double random_drand48_normal

(

)

Initialize random generator which uses the linear congruential algorithm and 48-bit integer arithmetic.

Definition at line 168 of file random.c.

random_drand48_uniform_simd()

void random_drand48_uniform_simd	(	int	n,
		double *	r )

Vectorised sampling from uniform distribution.

Uses the linear congruential algorithm and 48-bit integer arithmetic.

Parameters

n	number of numbers to be sampled
r	pointer where the values are stored

Definition at line 182 of file random.c.

random_drand48_normal_simd()

void random_drand48_normal_simd	(	int	n,
		double *	r )

Vectorised sampling from normal distribution.

Uses the linear congruential algorithm and 48-bit integer arithmetic.

Parameters

n	number of numbers to be sampled
r	pointer where the values are stored

Definition at line 197 of file random.c.