Nektar::LibUtilities::AnalyticExpressionEvaluator::EvalAWGN Struct Reference

Inheritance diagram for Nektar::LibUtilities::AnalyticExpressionEvaluator::EvalAWGN:

Collaboration diagram for Nektar::LibUtilities::AnalyticExpressionEvaluator::EvalAWGN:

Public Member Functions
	EvalAWGN (rgt rn, vr s, cvr c, cvr p, cvr v, ci i, ci l, ci r)
virtual void	run_many (ci n)
	declaring this guy pure virtual shortens virtual table. It saves some execution time. More...
virtual void	run_once ()
Public Member Functions inherited from Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluationStep
	EvaluationStep (rgt rn, ci i, ci l, ci r, vr s, cvr c, cvr p, cvr v)
virtual	~EvaluationStep ()

Additional Inherited Members
Public Attributes inherited from Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluationStep
rgt	rng
	reference to random number generator More...
vr	state
	references to arrays holding the common state More...
cvr	consts
cvr	params
cvr	vars
ci	storeIdx
	indices in the above arrays uniquely defining actual command arguments More...
ci	argIdx1
ci	argIdx2

Detailed Description

Definition at line 737 of file AnalyticExpressionEvaluator.hpp.

Constructor & Destructor Documentation

Nektar::LibUtilities::AnalyticExpressionEvaluator::EvalAWGN::EvalAWGN ( rgt  rn, vr  s, cvr  c, cvr  p, cvr  v, ci  i, ci  l, ci  r  )

inline

Definition at line 739 of file AnalyticExpressionEvaluator.hpp.

: EvaluationStep(rn,i,l,r,s,c,p,v) {}

Member Function Documentation

virtual void Nektar::LibUtilities::AnalyticExpressionEvaluator::EvalAWGN::run_many ( ci  n )

inlinevirtual

declaring this guy pure virtual shortens virtual table. It saves some execution time.

Implements Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluationStep.

Definition at line 740 of file AnalyticExpressionEvaluator.hpp.

References Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluationStep::rng, Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluationStep::state, and Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluationStep::storeIdx.

                {
                    // assuming the argument to AWGN does not depend on spatial variables =>
                    boost::variate_generator<RandomGeneratorType&, boost::normal_distribution<> >
                                       _normal(rng, boost::normal_distribution<>(0, state[storeIdx*n]) );
                    for(int i=0;i<n;i++) { state[storeIdx*n+i] = _normal(); }
                }

virtual void Nektar::LibUtilities::AnalyticExpressionEvaluator::EvalAWGN::run_once ( )

inlinevirtual

Implements Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluationStep.

Definition at line 747 of file AnalyticExpressionEvaluator.hpp.

References Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluationStep::rng, Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluationStep::state, and Nektar::LibUtilities::AnalyticExpressionEvaluator::EvaluationStep::storeIdx.

                {
                    boost::variate_generator<RandomGeneratorType&, boost::normal_distribution<> >
                                       _normal(rng, boost::normal_distribution<>(0, state[storeIdx]) );
                    state[storeIdx] = _normal();
                }