Heuristic which takes into account the time to build a new Krylov vector compared to the time to build an entire new subspace. More...

#include <krylov_evolve.h>

Inheritance diagram for syten::Krylov::Evolution::GreedyHeuristic< Solver, Clock >:

Collaboration diagram for syten::Krylov::Evolution::GreedyHeuristic< Solver, Clock >:

Classes
struct	Element
	Element of the computational history. More...

Public Member Functions
	GreedyHeuristic ()=default
	Default ctor. More...

	GreedyHeuristic (SRDef fac)
	Adapt the growth factor. More...

Public Member Functions inherited from syten::Krylov::Evolution::Evolver< Solver >
template<typename... WrapUpParams>
void	do_step (Solver &k, typename Solver::Vector_type &s, Conf &conf, std::string const &suffix, WrapUpParams &&... params)
	Does one step if the subspace can be recycled does not discard it(hopefully) More...

template<typename... WrapUpParams>
void	evolve (Solver k, typename Solver::Vector_type &s, Conf &conf, std::string const &suffix, WrapUpParams &&... params)
	Builds one Krylov space and evolves within that space as far as possible, recycling it if necessary. More...

virtual void	init_evolve (Conf &)
	Hook to initialise the evolution process for subclasses. More...

template<typename... WrapUpParams>
void	loop_evolve (typename Solver::Matrix_type o, typename Solver::Vector_type &v, Conf &conf, std::string const &suffix, WrapUpParams &&... params)
	Constructs the solver and evolves until the target time is reached. More...

virtual IterativeExit	virt_continue_evolution (Solver &k, typename Solver::Vector_type &s, Conf &conf, SDef dt)
	Hook for the continued actual evolution, calling out to the external functions by default. More...

virtual IterativeExit	virt_evolve (Solver &k, typename Solver::Vector_type &s, Conf &conf, SDef dt)
	Hook for the actual evolution, calling out to the external functions by default. More...

virtual	~Evolver ()
	Virtual dtor to allow proper destruction. More...

Protected Member Functions
virtual bool	do_recycle (Conf const &conf) const override
	override More...

virtual void	init_evolve (Conf &) override
	override: We need to place a new time holder in data. More...

virtual IterativeExit	virt_continue_evolution (Solver &k, typename Solver::Vector_type &s, Conf &conf, SDef dt) override
	override More...

virtual IterativeExit	virt_evolve (Solver &k, typename Solver::Vector_type &s, Conf &conf, SDef dt) override
	override More...

Protected Attributes
std::vector< std::vector< Element > >	data
	Computational history. More...

SRDef	factor = 1.
	assumed growth factor for cost of Krylov vectors More...

Additional Inherited Members
Public Attributes inherited from syten::Krylov::Evolution::Evolver< Solver >
Index	count {}
	number of steps taken More...

DenseTensor< 2, SDef >	current_Heff
	Current krylov vectors. More...

Vec< typename Solver::Vector_type >	current_krylov_vectors
	Current krylov vectors. More...

Detailed Description

template<typename Solver, typename Clock = std::chrono::steady_clock>
class syten::Krylov::Evolution::GreedyHeuristic< Solver, Clock >

Heuristic which takes into account the time to build a new Krylov vector compared to the time to build an entire new subspace.

Only checks the next step, not all steps potentially possible with the new Krylov vector.

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

inc/alg/krylov_evolve.h

Classes

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description