RandomInterface Class Reference

Interface for objects that need parallel consistent random numbers without patterns over the course of multiple runs. More...

#include <RandomInterface.h>

Inheritance diagram for RandomInterface:

Public Member Functions
	RandomInterface (const InputParameters &parameters, FEProblemBase &problem, THREAD_ID tid, bool is_nodal)
	~RandomInterface ()
void	setRandomResetFrequency (ExecFlagType exec_flag)
	This interface should be called from a derived class to enable random number generation in this object. More...
unsigned long	getRandomLong () const
	Returns the next random number (long) from the generator tied to this object (elem/node). More...
Real	getRandomReal () const
	Returns the next random number (Real) from the generator tied to this object (elem/node). More...
unsigned int	getSeed (std::size_t id)
	Get the seed for the passed in elem/node id. More...
unsigned int	getMasterSeed () const
bool	isNodal () const
ExecFlagType	getResetOnTime () const
void	setRandomDataPointer (RandomData *random_data)

Private Attributes
RandomData *	_random_data
MooseRandom *	_generator
FEProblemBase &	_ri_problem
const std::string	_ri_name
unsigned int	_master_seed
bool	_is_nodal
ExecFlagType	_reset_on
const Node *&	_curr_node
const Elem *&	_curr_element

Detailed Description

Interface for objects that need parallel consistent random numbers without patterns over the course of multiple runs.

Definition at line 34 of file RandomInterface.h.

Constructor & Destructor Documentation

RandomInterface()

RandomInterface::RandomInterface	(	const InputParameters &	parameters,
		FEProblemBase &	problem,
		THREAD_ID	tid,
		bool	is_nodal
	)

Definition at line 28 of file RandomInterface.C.

  : _random_data(nullptr),
    _generator(nullptr),
    _ri_problem(problem),
    _ri_name(parameters.get<std::string>("_object_name")),
    _master_seed(parameters.get<unsigned int>("seed")),
    _is_nodal(is_nodal),
    _reset_on(EXEC_LINEAR),
    _curr_node(problem.assembly(tid).node()),
    _curr_element(problem.assembly(tid).elem())
{
}

~RandomInterface()

RandomInterface::~RandomInterface

(

)

Definition at line 44 of file RandomInterface.C.

{}

Member Function Documentation

getMasterSeed()

unsigned int RandomInterface::getMasterSeed ( ) const

inline

Definition at line 70 of file RandomInterface.h.

{ return _master_seed; }

getRandomLong()

unsigned long RandomInterface::getRandomLong

(

)

const

Returns the next random number (long) from the generator tied to this object (elem/node).

Definition at line 69 of file RandomInterface.C.

{
  mooseAssert(_generator, "Random Generator is NULL, did you call setRandomResetFrequency()?");

  dof_id_type id;
  if (_is_nodal)
    id = _curr_node->id();
  else
    id = _curr_element->id();

  return _generator->randl(id);
}

getRandomReal()

Real RandomInterface::getRandomReal

(

)

const

Returns the next random number (Real) from the generator tied to this object (elem/node).

Definition at line 83 of file RandomInterface.C.

{
  mooseAssert(_generator, "Random Generator is NULL, did you call setRandomResetFrequency()?");

  dof_id_type id;
  if (_is_nodal)
    id = _curr_node->id();
  else
    id = _curr_element->id();

  return _generator->rand(id);
}

getResetOnTime()

ExecFlagType RandomInterface::getResetOnTime ( ) const

inline

Definition at line 72 of file RandomInterface.h.

{ return _reset_on; }

getSeed()

unsigned int RandomInterface::getSeed

(

std::size_t

id

)

Get the seed for the passed in elem/node id.

Parameters

id	- dof object id

Returns

current seed for this id

Definition at line 61 of file RandomInterface.C.

{
  mooseAssert(_random_data, "RandomData object is NULL!");

  return _random_data->getSeed(id);
}

isNodal()

bool RandomInterface::isNodal ( ) const

inline

Definition at line 71 of file RandomInterface.h.

{ return _is_nodal; }

setRandomDataPointer()

void RandomInterface::setRandomDataPointer

(

RandomData *

random_data

)

Definition at line 54 of file RandomInterface.C.

Referenced by FEProblemBase::registerRandomInterface().

{
  _random_data = random_data;
  _generator = &_random_data->getGenerator();
}

setRandomResetFrequency()

void RandomInterface::setRandomResetFrequency

(

ExecFlagType

exec_flag

)

This interface should be called from a derived class to enable random number generation in this object.

Definition at line 47 of file RandomInterface.C.

{
  _reset_on = exec_flag;
  _ri_problem.registerRandomInterface(*this, _ri_name);
}

Member Data Documentation

_curr_element

const Elem*& RandomInterface::_curr_element

private

Definition at line 88 of file RandomInterface.h.

Referenced by getRandomLong(), and getRandomReal().

_curr_node

const Node*& RandomInterface::_curr_node

private

Definition at line 87 of file RandomInterface.h.

Referenced by getRandomLong(), and getRandomReal().

_generator

MooseRandom* RandomInterface::_generator

mutableprivate

Definition at line 78 of file RandomInterface.h.

Referenced by getRandomLong(), getRandomReal(), and setRandomDataPointer().

_is_nodal

bool RandomInterface::_is_nodal

private

Definition at line 84 of file RandomInterface.h.

Referenced by getRandomLong(), getRandomReal(), and isNodal().

_master_seed

unsigned int RandomInterface::_master_seed

private

Definition at line 83 of file RandomInterface.h.

Referenced by getMasterSeed().

_random_data

RandomData* RandomInterface::_random_data

private

Definition at line 77 of file RandomInterface.h.

Referenced by getSeed(), and setRandomDataPointer().

_reset_on

ExecFlagType RandomInterface::_reset_on

private

Definition at line 85 of file RandomInterface.h.

Referenced by getResetOnTime(), and setRandomResetFrequency().

_ri_name

const std::string RandomInterface::_ri_name

private

Definition at line 81 of file RandomInterface.h.

Referenced by setRandomResetFrequency().

_ri_problem

FEProblemBase& RandomInterface::_ri_problem

private

Definition at line 80 of file RandomInterface.h.

Referenced by setRandomResetFrequency().

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

• include/utils/RandomInterface.h
• src/utils/RandomInterface.C