philox_rand.h File Reference

#include <cstdint>
#include "myintrin.h"

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Macros
#define	QUALIFIERS   inline
#define	PHILOX_W32_0   (0x9E3779B9)
#define	PHILOX_W32_1   (0xBB67AE85)
#define	PHILOX_M4x32_0   (0xD2511F53)
#define	PHILOX_M4x32_1   (0xCD9E8D57)
#define	TWOPOW53_INV_DOUBLE   (1.1102230246251565e-16)
#define	TWOPOW32_INV_FLOAT   (2.3283064e-10f)

Typedefs
typedef std::uint32_t	uint32
typedef std::uint64_t	uint64

Functions
QUALIFIERS uint32	mulhilo32 (uint32 a, uint32 b, uint32 *hip)
QUALIFIERS void	_philox4x32round (uint32 *ctr, uint32 *key)
QUALIFIERS void	_philox4x32bumpkey (uint32 *key)
QUALIFIERS double	_uniform_double_hq (uint32 x, uint32 y)
QUALIFIERS void	philox_double2 (uint32 ctr0, uint32 ctr1, uint32 ctr2, uint32 ctr3, uint32 key0, uint32 key1, double &rnd1, double &rnd2)
QUALIFIERS void	philox_float4 (uint32 ctr0, uint32 ctr1, uint32 ctr2, uint32 ctr3, uint32 key0, uint32 key1, float &rnd1, float &rnd2, float &rnd3, float &rnd4)

Macro Definition Documentation

PHILOX_M4x32_0

#define PHILOX_M4x32_0   (0xD2511F53)

Definition at line 53 of file lattice_boltzmann/generated_kernels/philox_rand.h.

PHILOX_M4x32_1

#define PHILOX_M4x32_1   (0xCD9E8D57)

Definition at line 54 of file lattice_boltzmann/generated_kernels/philox_rand.h.

PHILOX_W32_0

#define PHILOX_W32_0   (0x9E3779B9)

Definition at line 51 of file lattice_boltzmann/generated_kernels/philox_rand.h.

PHILOX_W32_1

#define PHILOX_W32_1   (0xBB67AE85)

Definition at line 52 of file lattice_boltzmann/generated_kernels/philox_rand.h.

QUALIFIERS

#define QUALIFIERS   inline

Definition at line 47 of file lattice_boltzmann/generated_kernels/philox_rand.h.

TWOPOW32_INV_FLOAT

#define TWOPOW32_INV_FLOAT   (2.3283064e-10f)

Definition at line 56 of file lattice_boltzmann/generated_kernels/philox_rand.h.

TWOPOW53_INV_DOUBLE

#define TWOPOW53_INV_DOUBLE   (1.1102230246251565e-16)

Definition at line 55 of file lattice_boltzmann/generated_kernels/philox_rand.h.

Typedef Documentation

uint32

typedef std::uint32_t uint32

Definition at line 58 of file lattice_boltzmann/generated_kernels/philox_rand.h.

uint64

typedef std::uint64_t uint64

Definition at line 59 of file lattice_boltzmann/generated_kernels/philox_rand.h.

Function Documentation

_philox4x32bumpkey()

QUALIFIERS void _philox4x32bumpkey

(

uint32 *

key

)

Definition at line 102 of file lattice_boltzmann/generated_kernels/philox_rand.h.

References PHILOX_W32_0, and PHILOX_W32_1.

Referenced by philox_double2(), and philox_float4().

_philox4x32round()

QUALIFIERS void _philox4x32round	(	uint32 *	ctr,
		uint32 *	key
	)

Definition at line 90 of file lattice_boltzmann/generated_kernels/philox_rand.h.

References mulhilo32(), PHILOX_M4x32_0, and PHILOX_M4x32_1.

Referenced by philox_double2(), and philox_float4().

_uniform_double_hq()

QUALIFIERS double _uniform_double_hq	(	uint32	x,
		uint32	y
	)

Definition at line 107 of file lattice_boltzmann/generated_kernels/philox_rand.h.

References TWOPOW53_INV_DOUBLE.

Referenced by philox_double2().

mulhilo32()

QUALIFIERS uint32 mulhilo32	(	uint32	a,
		uint32	b,
		uint32 *	hip
	)

Definition at line 72 of file lattice_boltzmann/generated_kernels/philox_rand.h.

Referenced by _philox4x32round().

philox_double2()

QUALIFIERS void philox_double2	(	uint32	ctr0,
		uint32	ctr1,
		uint32	ctr2,
		uint32	ctr3,
		uint32	key0,
		uint32	key1,
		double &	rnd1,
		double &	rnd2
	)

Definition at line 112 of file lattice_boltzmann/generated_kernels/philox_rand.h.

References _philox4x32bumpkey(), _philox4x32round(), and _uniform_double_hq().

philox_float4()

QUALIFIERS void philox_float4	(	uint32	ctr0,
		uint32	ctr1,
		uint32	ctr2,
		uint32	ctr3,
		uint32	key0,
		uint32	key1,
		float &	rnd1,
		float &	rnd2,
		float &	rnd3,
		float &	rnd4
	)

Definition at line 141 of file lattice_boltzmann/generated_kernels/philox_rand.h.

References _philox4x32bumpkey(), _philox4x32round(), and TWOPOW32_INV_FLOAT.