NewtonTRDirection< Conf > Struct Template Reference

#include <alpaqa/include/alpaqa/inner/directions/pantr/newton-tr.hpp>

Detailed Description

template<Config Conf>
struct alpaqa::NewtonTRDirection< Conf >

Definition at line 27 of file newton-tr.hpp.

Collaboration diagram for NewtonTRDirection< Conf >:

Classes
struct	Params

Public Types
using	Problem = TypeErasedProblem< config_t >
using	AcceleratorParams = SteihaugCGParams< config_t >
using	DirectionParams = NewtonTRDirectionParams< config_t >

Public Member Functions
	NewtonTRDirection ()=default
	NewtonTRDirection (const Params &params)
	NewtonTRDirection (const AcceleratorParams &params, const DirectionParams &directionparams={})
void	initialize (const Problem &problem, crvec y, crvec Σ, real_t γ_0, crvec x_0, crvec x̂_0, crvec p_0, crvec grad_ψx_0)
bool	has_initial_direction () const
bool	update (real_t γₖ, real_t γₙₑₓₜ, crvec xₖ, crvec xₙₑₓₜ, crvec pₖ, crvec pₙₑₓₜ, crvec grad_ψxₖ, crvec grad_ψxₙₑₓₜ)
real_t	apply (real_t γₖ, crvec xₖ, crvec x̂ₖ, crvec pₖ, crvec grad_ψxₖ, real_t radius, rvec qₖ) const
void	changed_γ (real_t γₖ, real_t old_γₖ)
void	reset ()
std::string	get_name () const
auto	get_params () const

Public Attributes
SteihaugCG< config_t >	steihaug
DirectionParams	direction_params
const Problem *	problem = nullptr
std::optional< crvec >	y = std::nullopt
std::optional< crvec >	Σ = std::nullopt
indexvec	JK_sto
vec	rJ_sto
vec	qJ_sto
vec	work
vec	work_2
vec	work_n_fd
vec	work_m_fd

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Class Documentation

alpaqa::NewtonTRDirection::Params

struct alpaqa::NewtonTRDirection::Params

Collaboration diagram for NewtonTRDirection< Conf >::Params:

Class Members
AcceleratorParams	accelerator = {}
DirectionParams	direction = {}

Member Typedef Documentation

Problem

using Problem = TypeErasedProblem<config_t>

Definition at line 30 of file newton-tr.hpp.

AcceleratorParams

using AcceleratorParams = SteihaugCGParams<config_t>

Definition at line 31 of file newton-tr.hpp.

DirectionParams

using DirectionParams = NewtonTRDirectionParams<config_t>

Definition at line 32 of file newton-tr.hpp.

Constructor & Destructor Documentation

NewtonTRDirection() [1/3]

NewtonTRDirection ( )

default

NewtonTRDirection() [2/3]

NewtonTRDirection ( const Params &  params )

inline

Definition at line 40 of file newton-tr.hpp.

NewtonTRDirection() [3/3]

NewtonTRDirection ( const AcceleratorParams &  params, const DirectionParams &  directionparams = {}  )

inline

Definition at line 42 of file newton-tr.hpp.

Member Function Documentation

initialize()

void initialize ( const Problem &  problem, crvec  y, crvec  Σ, real_t  γ_0, crvec  x_0, crvec  x̂_0, crvec  p_0, crvec  grad_ψx_0  )

inline

See also

PANTRDirection::initialize

Definition at line 47 of file newton-tr.hpp.

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has_initial_direction()

bool has_initial_direction ( ) const

inline

See also

PANTRDirection::has_initial_direction

Definition at line 79 of file newton-tr.hpp.

update()

bool update ( real_t  γₖ, real_t  γₙₑₓₜ, crvec  xₖ, crvec  xₙₑₓₜ, crvec  pₖ, crvec  pₙₑₓₜ, crvec  grad_ψxₖ, crvec  grad_ψxₙₑₓₜ  )

inline

See also

PANTRDirection::update

Definition at line 82 of file newton-tr.hpp.

apply()

real_t apply ( real_t  γₖ, crvec  xₖ, crvec  x̂ₖ, crvec  pₖ, crvec  grad_ψxₖ, real_t  radius, rvec  qₖ  ) const

inline

See also

PANTRDirection::apply

Definition at line 91 of file newton-tr.hpp.

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changed_γ()

void changed_γ ( real_t  γₖ, real_t  old_γₖ  )

inline

See also

PANTRDirection::changed_γ

Definition at line 158 of file newton-tr.hpp.

reset()

void reset ( )

inline

See also

PANTRDirection::reset

Definition at line 165 of file newton-tr.hpp.

get_name()

std::string get_name ( ) const

inline

See also

PANTRDirection::get_name

Definition at line 168 of file newton-tr.hpp.

get_params()

auto get_params ( ) const

inline

Definition at line 172 of file newton-tr.hpp.

Member Data Documentation

steihaug

SteihaugCG<config_t> steihaug

Definition at line 176 of file newton-tr.hpp.

direction_params

DirectionParams direction_params

Definition at line 177 of file newton-tr.hpp.

problem

const Problem* problem = nullptr

Definition at line 178 of file newton-tr.hpp.

y

std::optional<crvec> y = std::nullopt

Definition at line 180 of file newton-tr.hpp.

Σ

std::optional<crvec> Σ = std::nullopt

Definition at line 181 of file newton-tr.hpp.

JK_sto

indexvec JK_sto

mutable

Definition at line 186 of file newton-tr.hpp.

rJ_sto

vec rJ_sto

mutable

Definition at line 187 of file newton-tr.hpp.

qJ_sto

vec qJ_sto

mutable

Definition at line 188 of file newton-tr.hpp.

work

vec work

mutable

Definition at line 189 of file newton-tr.hpp.

work_2

vec work_2

Definition at line 189 of file newton-tr.hpp.

work_n_fd

vec work_n_fd

Definition at line 189 of file newton-tr.hpp.

work_m_fd

vec work_m_fd

Definition at line 189 of file newton-tr.hpp.

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

• newton-tr.hpp