rocrand_device::threefry_engine4_base< state_value, value, Nrounds > Class Template Reference

Collaboration diagram for rocrand_device::threefry_engine4_base< state_value, value, Nrounds >:

Classes
struct	threefry_state_4

Public Member Functions
FQUALIFIERS void	discard (unsigned long long offset)
	Advances the internal state to skip offset numbers.
FQUALIFIERS void	discard_subsequence (unsigned long long subsequence)
	Advances the internal state to skip subsequence subsequences, a subsequence consisting of 4 * (2 ^ b) random numbers, where b is the number of bits of the value type of the generator. More...
FQUALIFIERS value	operator() ()
FQUALIFIERS value	next ()
FQUALIFIERS state_value	next4 ()

Protected Member Functions
FQUALIFIERS state_value	threefry_rounds (state_value counter, state_value key)
FQUALIFIERS void	discard_impl (unsigned long long offset)
	Advances the internal state to skip offset numbers. More...
FQUALIFIERS void	discard_subsequence_impl (unsigned long long subsequence)
	Does not calculate new values (or update m_state.result).
FQUALIFIERS void	discard_state (unsigned long long offset)
	Advances the internal state by offset times. More...
FQUALIFIERS state_value	interleave (const state_value prev, const state_value next) const

Static Protected Member Functions
static FQUALIFIERS state_value	bump_counter (state_value counter)

Protected Attributes
threefry_state_4	m_state

Member Function Documentation

discard_impl()

template<typename state_value, typename value, unsigned int Nrounds>

FQUALIFIERS void rocrand_device::threefry_engine4_base< state_value, value, Nrounds >::discard_impl ( unsigned long long  offset )

inlineprotected

Advances the internal state to skip offset numbers.

Does not calculate new values (or update m_state.result).

discard_state()

template<typename state_value, typename value, unsigned int Nrounds>

FQUALIFIERS void rocrand_device::threefry_engine4_base< state_value, value, Nrounds >::discard_state ( unsigned long long  offset )

inlineprotected

Advances the internal state by offset times.

Does not calculate new values (or update m_state.result).

discard_subsequence()

template<typename state_value, typename value, unsigned int Nrounds>

FQUALIFIERS void rocrand_device::threefry_engine4_base< state_value, value, Nrounds >::discard_subsequence ( unsigned long long  subsequence )

inline

Advances the internal state to skip subsequence subsequences, a subsequence consisting of 4 * (2 ^ b) random numbers, where b is the number of bits of the value type of the generator.

In other words, this function is equivalent to calling discard 4 * (2 ^ b) times without using the return value, but is much faster.

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

• library/include/rocrand/rocrand_threefry4_impl.h