#include <philox.h>

Inheritance diagram for openrand::Philox:

Public Member Functions
OPENRAND_DEVICE	Philox (uint64_t seed, uint32_t ctr, uint32_t global_seed=openrand::DEFAULT_GLOBAL_SEED, uint32_t ctr1=0x12345)
	Construct a new Philox generator. More...

template<typename T = uint32_t>
OPENRAND_DEVICE T	draw ()

openrand::uint4	draw_int4 ()

openrand::float4	draw_float4 ()

Public Member Functions inherited from openrand::BaseRNG< Philox >
OPENRAND_DEVICE result_type	operator() ()
	Generates a 32 bit unsigned integer from a uniform distribution. More...

OPENRAND_DEVICE T	rand ()
	Generates a random number from a uniform distribution between 0 and 1. More...

OPENRAND_DEVICE T	uniform (const T low, const T high)
	Generates a number from a uniform distribution between a and b. More...

OPENRAND_DEVICE void	fill_random (T *array, const int N)

OPENRAND_DEVICE T	randn ()
	Generates a random number from a normal distribution with mean 0 and std 1. More...

OPENRAND_DEVICE T	randn (const T mean, const T std_dev)
	Generates a random number from a normal distribution with mean and std. More...

OPENRAND_DEVICE vec2< T >	randn2 ()
	More efficient version of randn, returns two values at once. More...

OPENRAND_DEVICE T	range (const T N)
	Generates a random integer of certain range. More...

OPENRAND_DEVICE T	gamma (T alpha, T b)
	Generates a random number from a gamma distribution with shape alpha and scale b. More...

std::enable_if_t< has_counter< T >::value, Philox >	forward_state (int n) const
	Returns a new generator with the internal state forwarded by a given number. More...

Additional Inherited Members
Public Types inherited from openrand::BaseRNG< Philox >
using	result_type = uint32_t

Static Public Member Functions inherited from openrand::BaseRNG< Philox >
static constexpr result_type	min ()

static constexpr result_type	max ()

Protected Member Functions inherited from openrand::BaseRNG< Philox >
OPENRAND_DEVICE Ftype	u01 (const Utype in) const

Detailed Description

Philox generator.

Note: This is a modified version of Philox generator from Random123 library. This uses 4x 32-bit counter, 2x 32-bit key along with 10 rounds.

Constructor & Destructor Documentation

OPENRAND_DEVICE openrand::Philox::Philox	(	uint64_t	seed,
		uint32_t	ctr,
		uint32_t	global_seed = `openrand::DEFAULT_GLOBAL_SEED`,
		uint32_t	ctr1 = `0x12345`
	)

inline

Construct a new Philox generator.

Note: Internally, global_seed is treated in the same way as other counters, and can be treated as such depending on the application needs.

Parameters

seed	64-bit seed
ctr	32-bit counter
global_seed	(Optional) 32-bit global seed.
ctr1	(Optional) Another 32-bit counter exposed for advanced use.

The documentation for this class was generated from the following file: