Class RngStream and MRG32k3a implementation. More...

#include <cstdlib>
#include <iostream>
#include "rng-stream.h"
#include "fatal-error.h"
#include "log.h"

Include dependency graph for rng-stream.cc:

Classes
struct	anonymous_namespace{rng-stream.cc}::Precalculated
	The transition matrices of the two MRG components (in matrix form), raised to all powers of 2 from 1 to 191. More...

Namespaces
	anonymous_namespace{rng-stream.cc}
	Unnamed namespace for MRG32k3a implementation details.

	ns3
	Every class exported by the ns3 library is enclosed in the ns3 namespace.

Typedefs
typedef double	anonymous_namespace{rng-stream.cc}::Matrix[3][3]
	Type for 3x3 matrix of doubles. More...

Functions
void	anonymous_namespace{rng-stream.cc}::MatMatModM (const Matrix A, const Matrix B, Matrix C, double m)
	Compute the matrix C = A*B MOD m. More...

void	anonymous_namespace{rng-stream.cc}::MatTwoPowModM (const Matrix src, Matrix dst, double m, int32_t e)
	Compute the matrix B = (A^(2^e) Mod m); works also if A = B. More...

void	anonymous_namespace{rng-stream.cc}::MatVecModM (const Matrix A, const double s[3], double v[3], double m)
	Compute the vector v = A*s MOD m. More...

double	anonymous_namespace{rng-stream.cc}::MultModM (double a, double s, double c, double m)
	Return (a*s + c) MOD m; a, s, c and m must be < 2^35. More...

struct Precalculated	anonymous_namespace{rng-stream.cc}::PowerOfTwoConstants (void)
	Compute the transition matrices of the two MRG components. More...

void	anonymous_namespace{rng-stream.cc}::PowerOfTwoMatrix (int n, Matrix a1p, Matrix a2p)
	Get the transition matrices raised to a power of 2. More...

Variables
const double	anonymous_namespace{rng-stream.cc}::a12 = 1403580.0
	First component multiplier of n - 2 value. More...

const double	anonymous_namespace{rng-stream.cc}::a13n = 810728.0
	First component multiplier of n - 3 value. More...

const Matrix	anonymous_namespace{rng-stream.cc}::A1p0
	First component transition matrix. More...

const double	anonymous_namespace{rng-stream.cc}::a21 = 527612.0
	Second component multiplier of n - 1 value. More...

const double	anonymous_namespace{rng-stream.cc}::a23n = 1370589.0
	Second component multiplier of n - 3 value. More...

const Matrix	anonymous_namespace{rng-stream.cc}::A2p0
	Second component transition matrix. More...

const double	anonymous_namespace{rng-stream.cc}::m1 = 4294967087.0
	First component modulus, 2³² - 209. More...

const double	anonymous_namespace{rng-stream.cc}::m2 = 4294944443.0
	Second component modulus, 2³² - 22853. More...

const double	anonymous_namespace{rng-stream.cc}::norm = 1.0 / (m1 + 1.0)
	Normalization to obtain randoms on [0,1). More...

const double	anonymous_namespace{rng-stream.cc}::two17 = 131072.0
	Decomposition factor for computing a*s in less than 53 bits, 2¹⁷ More...

const double	anonymous_namespace{rng-stream.cc}::two53 = 9007199254740992.0
	IEEE-754 floating point precision, 2⁵³ More...

Detailed Description

Class RngStream and MRG32k3a implementation.

Definition in file rng-stream.cc.

Classes