Header file for random.c. More...

#include <stdlib.h>

Macros
#define	random_init(data, seed) srand48(seed)

#define	random_uniform(data) drand48()

#define	random_normal(data) random_drand48_normal()

#define	random_uniform_simd(data, n, r) random_drand48_uniform_simd(n, r)

#define	random_normal_simd(data, n, r) random_drand48_normal_simd(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 ) srand48(seed)

Initialize random number generator

Definition at line 94 of file random.h.

◆ random_uniform

#define random_uniform ( data ) drand48()

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

Definition at line 96 of file random.h.

◆ random_normal

#define random_normal ( data ) random_drand48_normal()

Sample from Normal distribution

Definition at line 98 of file random.h.

◆ random_uniform_simd

#define random_uniform_simd	(	data,
		n,
		r ) random_drand48_uniform_simd(n, r)

Same as random_uniform but vectorised

Definition at line 100 of file random.h.

◆ random_normal_simd

#define random_normal_simd	(	data,
		n,
		r ) random_drand48_normal_simd(n, r)

Same as random_normal but vectorised

Definition at line 102 of file random.h.

Typedef Documentation

◆ random_data

typedef void* random_data

Data used by the random number generator

Definition at line 87 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 166 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 180 of file random.c.

◆ random_drand48_normal_simd()

void random_drand48_normal_simd	(	int	n,
		double *	r )

Vectorised sampling from normal distribution.