DiFfRG::TimeStepperSUNDIALS_IDA_BoostRK< VectorType, SparseMatrixType, dim, LinearSolver, prec > Class Template Reference

A class to perform time stepping using the adaptive Boost Runge-Kutta method for the explicit part and SUNDIALS IDA for the implicit part. In this scheme, the IDA stepper is the controller and the Boost RK stepper solves the explicit part of the problem on-demand. More...

#include <sundials_ida_boost_rk.hh>

Inheritance diagram for DiFfRG::TimeStepperSUNDIALS_IDA_BoostRK< VectorType, SparseMatrixType, dim, LinearSolver, prec >:

Public Types
using	NumberType = typename Base::NumberType
using	InverseSparseMatrixType = typename Base::InverseSparseMatrixType
using	BlockVectorType = typename Base::BlockVectorType
using	error_stepper_type = typename stepperChoice<prec>::value

Public Member Functions
virtual void	run (AbstractFlowingVariables< NumberType > *initial_condition, const double t_start, const double t_stop) override
	Any derived class must implement this method to run the timestepping algorithm.
Public Member Functions inherited from DiFfRG::AbstractTimestepper< VectorType, SparseMatrixType, dim >
	AbstractTimestepper (const JSONValue &json, AbstractAssembler< VectorType, SparseMatrixType, dim > *assembler, DataOutput< dim, VectorType > *data_out=nullptr, AbstractAdaptor< VectorType > *adaptor=nullptr)
	Construct a new Abstract Timestepper object.
DataOutput< dim, VectorType > *	get_data_out ()
	Utility function to obtain a DataOutput object. If no DataOutput object is provided, a default one is created.
AbstractAdaptor< VectorType > *	get_adaptor ()
	Utility function to obtain an Adaptor object. If no Adaptor object is provided, a default one is created, which is the NoAdaptivity object, i.e. no mesh adaptivity is used.

Private Types
using	Base = AbstractTimestepper<VectorType, SparseMatrixType, dim>

Private Member Functions
void	run (BlockVectorType &initial_data, const double t_start, const double t_stop)
void	update_variables (VectorType &variable_y, const VectorType &spatial_y, const double t)

Additional Inherited Members
Protected Types inherited from DiFfRG::AbstractTimestepper< VectorType, SparseMatrixType, dim >
using	VectorType
using	NumberType
using	SparseMatrixType
using	InverseSparseMatrixType
using	BlockVectorType
Protected Member Functions inherited from DiFfRG::AbstractTimestepper< VectorType, SparseMatrixType, dim >
void	console_out (const double t, const std::string name, const int verbosity_level, const double calc_dt_ms=-1.0) const
	Pretty-print the status of the timestepping algorithm to the console.
Protected Attributes inherited from DiFfRG::AbstractTimestepper< VectorType, SparseMatrixType, dim >
const JSONValue	json
AbstractAssembler< VectorType, SparseMatrixType, dim > *	assembler
DataOutput< dim, VectorType > *	data_out
AbstractAdaptor< VectorType > *	adaptor
const std::chrono::time_point< std::chrono::high_resolution_clock >	start_time
std::shared_ptr< NoAdaptivity< VectorType > >	adaptor_default
std::shared_ptr< DataOutput< dim, VectorType > >	data_out_default
double	Lambda
int	verbosity
double	output_dt
struct DiFfRG::AbstractTimestepper::ImplicitParameters	impl
struct DiFfRG::AbstractTimestepper::ExplicitParameters	expl
Static Protected Attributes inherited from DiFfRG::AbstractTimestepper< VectorType, SparseMatrixType, dim >
static constexpr uint	dim

Detailed Description

template<typename VectorType, typename SparseMatrixType, uint dim, template< typename, typename > typename LinearSolver, int prec>
class DiFfRG::TimeStepperSUNDIALS_IDA_BoostRK< VectorType, SparseMatrixType, dim, LinearSolver, prec >

A class to perform time stepping using the adaptive Boost Runge-Kutta method for the explicit part and SUNDIALS IDA for the implicit part. In this scheme, the IDA stepper is the controller and the Boost RK stepper solves the explicit part of the problem on-demand.

Template Parameters

VectorType	Type of the vector
dim	Dimension of the problem
prec	Algorithm choice: 0 for Cash-Karp54 (5th order), 1 for Fehlberg78 (8th order)

Member Typedef Documentation

Base

template<typename VectorType , typename SparseMatrixType , uint dim, template< typename, typename > typename LinearSolver, int prec>

using DiFfRG::TimeStepperSUNDIALS_IDA_BoostRK< VectorType, SparseMatrixType, dim, LinearSolver, prec >::Base = AbstractTimestepper<VectorType, SparseMatrixType, dim>

private

BlockVectorType

template<typename VectorType , typename SparseMatrixType , uint dim, template< typename, typename > typename LinearSolver, int prec>

using DiFfRG::TimeStepperSUNDIALS_IDA_BoostRK< VectorType, SparseMatrixType, dim, LinearSolver, prec >::BlockVectorType = typename Base::BlockVectorType

error_stepper_type

template<typename VectorType , typename SparseMatrixType , uint dim, template< typename, typename > typename LinearSolver, int prec>

using DiFfRG::TimeStepperSUNDIALS_IDA_BoostRK< VectorType, SparseMatrixType, dim, LinearSolver, prec >::error_stepper_type = typename stepperChoice<prec>::value

InverseSparseMatrixType

template<typename VectorType , typename SparseMatrixType , uint dim, template< typename, typename > typename LinearSolver, int prec>

using DiFfRG::TimeStepperSUNDIALS_IDA_BoostRK< VectorType, SparseMatrixType, dim, LinearSolver, prec >::InverseSparseMatrixType = typename Base::InverseSparseMatrixType

NumberType

template<typename VectorType , typename SparseMatrixType , uint dim, template< typename, typename > typename LinearSolver, int prec>

using DiFfRG::TimeStepperSUNDIALS_IDA_BoostRK< VectorType, SparseMatrixType, dim, LinearSolver, prec >::NumberType = typename Base::NumberType

Member Function Documentation

run() [1/2]

template<typename VectorType , typename SparseMatrixType , uint dim, template< typename, typename > typename LinearSolver, int prec>

virtual void DiFfRG::TimeStepperSUNDIALS_IDA_BoostRK< VectorType, SparseMatrixType, dim, LinearSolver, prec >::run ( AbstractFlowingVariables< NumberType > * initial_condition, const double t_start, const double t_stop )

overridevirtual

Any derived class must implement this method to run the timestepping algorithm.

Parameters

initial_condition	A pointer to a flowing variables object that contains the initial condition.
t_start	The start time of the simulation.
t_stop	The run method will evolve the system from t_start to t_stop.

Implements DiFfRG::AbstractTimestepper< VectorType, SparseMatrixType, dim >.

run() [2/2]

template<typename VectorType , typename SparseMatrixType , uint dim, template< typename, typename > typename LinearSolver, int prec>

void DiFfRG::TimeStepperSUNDIALS_IDA_BoostRK< VectorType, SparseMatrixType, dim, LinearSolver, prec >::run ( BlockVectorType & initial_data, const double t_start, const double t_stop )

private

update_variables()

template<typename VectorType , typename SparseMatrixType , uint dim, template< typename, typename > typename LinearSolver, int prec>

void DiFfRG::TimeStepperSUNDIALS_IDA_BoostRK< VectorType, SparseMatrixType, dim, LinearSolver, prec >::update_variables ( VectorType & variable_y, const VectorType & spatial_y, const double t )

private

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

• /home/runner/work/DiFfRG_current/DiFfRG_current/DiFfRG/include/DiFfRG/timestepping/sundials_ida_boost_rk.hh