rng-stream.cc File Reference

ns3::RngStream and MRG32k3a implementations. More...

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

Include dependency graph for rng-stream.cc:

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Classes
struct	MRG32k3a::Precalculated
	The transition matrices of the two MRG components (in matrix form), raised to all powers of 2 from 1 to 191. More...

Namespaces
namespace	MRG32k3a
	Namespace for MRG32k3a implementation details.
namespace	ns3
	Every class exported by the ns3 library is enclosed in the ns3 namespace.

Typedefs
typedef double	MRG32k3a::Matrix[3][3]
	Type for 3x3 matrix of doubles.

Functions
void	MRG32k3a::MatMatModM (const Matrix A, const Matrix B, Matrix C, double m)
	Compute the matrix C = A*B MOD m.
void	MRG32k3a::MatPowModM (const double A[3][3], double B[3][3], double m, int32_t n)
	Compute the matrix B = (A^n Mod m); works even if A = B.
void	MRG32k3a::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.
void	MRG32k3a::MatVecModM (const Matrix A, const double s[3], double v[3], double m)
	Compute the vector v = A*s MOD m.
double	MRG32k3a::MultModM (double a, double s, double c, double m)
	Return (a*s + c) MOD m; a, s, c and m must be < 2^35.
Precalculated	MRG32k3a::PowerOfTwoConstants ()
	Compute the transition matrices of the two MRG components raised to all powers of 2 from 1 to 191.
void	MRG32k3a::PowerOfTwoMatrix (int n, Matrix a1p, Matrix a2p)
	Get the transition matrices raised to a power of 2.

Variables
const double	MRG32k3a::a12 = 1403580.0
	First component multiplier of n - 2 value.
const double	MRG32k3a::a13n = 810728.0
	First component multiplier of n - 3 value.
const Matrix	MRG32k3a::A1p0
	First component transition matrix.
const double	MRG32k3a::a21 = 527612.0
	Second component multiplier of n - 1 value.
const double	MRG32k3a::a23n = 1370589.0
	Second component multiplier of n - 3 value.
const Matrix	MRG32k3a::A2p0
	Second component transition matrix.
const double	MRG32k3a::m1 = 4294967087.0
	First component modulus, 232 - 209.
const double	MRG32k3a::m2 = 4294944443.0
	Second component modulus, 232 - 22853.
const double	MRG32k3a::norm = 1.0 / (m1 + 1.0)
	Normalization to obtain randoms on [0,1).
const double	MRG32k3a::two17 = 131072.0
	Decomposition factor for computing a*s in less than 53 bits, 217
const double	MRG32k3a::two53 = 9007199254740992.0
	IEEE-754 floating point precision, 253

Detailed Description

ns3::RngStream and MRG32k3a implementations.

Definition in file rng-stream.cc.