strumpack::random::RandomGenerator< real_t, E, D > Class Template Reference

Class for a random number generator. More...

#include <RandomWrapper.hpp>

Inheritance diagram for strumpack::random::RandomGenerator< real_t, E, D >:

Collaboration diagram for strumpack::random::RandomGenerator< real_t, E, D >:

Public Member Functions
	RandomGenerator ()
	RandomGenerator (std::size_t s)
void	seed (std::size_t s)
void	seed (std::seed_seq &s)
void	seed (std::uint32_t i, std::uint32_t j)
real_t	get ()
real_t	get (std::uint32_t i, std::uint32_t j)
int	flops_per_prng ()

Detailed Description

template<typename real_t, typename E, typename D>
class strumpack::random::RandomGenerator< real_t, E, D >

Class for a random number generator.

Template Parameters

real_t	float or double
E	the random number engine: std::mt19937 or std::minstd_rand
D	the random number distribution: std::uniform_real_distribution or std::normal_distribution

See also

RandomGeneratorBase

Constructor & Destructor Documentation

RandomGenerator() [1/2]

template<typename real_t , typename E , typename D >

strumpack::random::RandomGenerator< real_t, E, D >::RandomGenerator ( )

inline

Default constructor, using seed 0.

RandomGenerator() [2/2]

template<typename real_t , typename E , typename D >

strumpack::random::RandomGenerator< real_t, E, D >::RandomGenerator ( std::size_t  s )

inline

Constructor using seed s.

Member Function Documentation

flops_per_prng()

template<typename real_t , typename E , typename D >

int strumpack::random::RandomGenerator< real_t, E, D >::flops_per_prng ( )

inlinevirtual

Return the (approximate) number of flops required to generate a random number.

Implements strumpack::random::RandomGeneratorBase< real_t >.

get() [1/2]

template<typename real_t , typename E , typename D >

real_t strumpack::random::RandomGenerator< real_t, E, D >::get ( )

inlinevirtual

get the next random element.

Implements strumpack::random::RandomGeneratorBase< real_t >.

get() [2/2]

template<typename real_t , typename E , typename D >

real_t strumpack::random::RandomGenerator< real_t, E, D >::get ( std::uint32_t  i, std::uint32_t  j  )

inlinevirtual

Get a (reproducible) element for a specific 2d point.

Implements strumpack::random::RandomGeneratorBase< real_t >.

seed() [1/3]

template<typename real_t , typename E , typename D >

void strumpack::random::RandomGenerator< real_t, E, D >::seed ( std::seed_seq &  s )

inlinevirtual

Seed with a seed sequence.

Implements strumpack::random::RandomGeneratorBase< real_t >.

seed() [2/3]

template<typename real_t , typename E , typename D >

void strumpack::random::RandomGenerator< real_t, E, D >::seed ( std::size_t  s )

inlinevirtual

Seed with value s.

Implements strumpack::random::RandomGeneratorBase< real_t >.

seed() [3/3]

template<typename real_t , typename E , typename D >

void strumpack::random::RandomGenerator< real_t, E, D >::seed ( std::uint32_t  i, std::uint32_t  j  )

inlinevirtual

Seed with two values (for instance 2 coordinates, point in a matrix). Can be used to get reproducible (pseudo-random) matrix elements.

Implements strumpack::random::RandomGeneratorBase< real_t >.

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

• /home/pieterg/LBL/STRUMPACK/src/misc/RandomWrapper.hpp