uni20::krylov::KrylovExponentialResult< Scalar, Vector > Struct Template Reference

Matrix-free approximation to exp(t A) v. More...

#include <krylov_exponential.hpp>

Public Attributes
Vector	action
bool	converged = true
uni20::make_real_t< Scalar >	defect_integral_estimate = uni20::make_real_t<Scalar>{}
	Time-integrated Hermitian/Lanczos defect estimate; zero for nonsymmetric Arnoldi actions.
std::optional< KrylovExponentialDiagnostics< uni20::make_real_t< Scalar > > >	diagnostics
uni20::make_real_t< Scalar >	endpoint_defect_estimate = uni20::make_real_t<Scalar>{}
uni20::make_real_t< Scalar >	error_estimate = uni20::make_real_t<Scalar>{}
uni20::make_real_t< Scalar >	final_residual_norm = uni20::make_real_t<Scalar>{}
bool	happy_breakdown = false
uni20::make_real_t< Scalar >	initial_norm = uni20::make_real_t<Scalar>{}
int	matvec_count = 0
int	projected_dimension = 0
uni20::make_real_t< Scalar >	target_error = uni20::make_real_t<Scalar>{}

Detailed Description

template<uni20::RealOrComplex Scalar, typename Vector>
struct uni20::krylov::KrylovExponentialResult< Scalar, Vector >

Matrix-free approximation to exp(t A) v.

Template Parameters

Scalar	Vector-space scalar type.
Vector	Opaque vector type.

Member Data Documentation

action

template<uni20::RealOrComplex Scalar, typename Vector >

Vector uni20::krylov::KrylovExponentialResult< Scalar, Vector >::action

converged

template<uni20::RealOrComplex Scalar, typename Vector >

bool uni20::krylov::KrylovExponentialResult< Scalar, Vector >::converged = true

defect_integral_estimate

template<uni20::RealOrComplex Scalar, typename Vector >

uni20::make_real_t<Scalar> uni20::krylov::KrylovExponentialResult< Scalar, Vector >::defect_integral_estimate = uni20::make_real_t<Scalar>{}

Time-integrated Hermitian/Lanczos defect estimate; zero for nonsymmetric Arnoldi actions.

diagnostics

template<uni20::RealOrComplex Scalar, typename Vector >

std::optional<KrylovExponentialDiagnostics<uni20::make_real_t<Scalar> > > uni20::krylov::KrylovExponentialResult< Scalar, Vector >::diagnostics

endpoint_defect_estimate

template<uni20::RealOrComplex Scalar, typename Vector >

uni20::make_real_t<Scalar> uni20::krylov::KrylovExponentialResult< Scalar, Vector >::endpoint_defect_estimate = uni20::make_real_t<Scalar>{}

error_estimate

template<uni20::RealOrComplex Scalar, typename Vector >

uni20::make_real_t<Scalar> uni20::krylov::KrylovExponentialResult< Scalar, Vector >::error_estimate = uni20::make_real_t<Scalar>{}

final_residual_norm

template<uni20::RealOrComplex Scalar, typename Vector >

uni20::make_real_t<Scalar> uni20::krylov::KrylovExponentialResult< Scalar, Vector >::final_residual_norm = uni20::make_real_t<Scalar>{}

happy_breakdown

template<uni20::RealOrComplex Scalar, typename Vector >

bool uni20::krylov::KrylovExponentialResult< Scalar, Vector >::happy_breakdown = false

initial_norm

template<uni20::RealOrComplex Scalar, typename Vector >

uni20::make_real_t<Scalar> uni20::krylov::KrylovExponentialResult< Scalar, Vector >::initial_norm = uni20::make_real_t<Scalar>{}

matvec_count

template<uni20::RealOrComplex Scalar, typename Vector >

int uni20::krylov::KrylovExponentialResult< Scalar, Vector >::matvec_count = 0

projected_dimension

template<uni20::RealOrComplex Scalar, typename Vector >

int uni20::krylov::KrylovExponentialResult< Scalar, Vector >::projected_dimension = 0

target_error

template<uni20::RealOrComplex Scalar, typename Vector >

uni20::make_real_t<Scalar> uni20::krylov::KrylovExponentialResult< Scalar, Vector >::target_error = uni20::make_real_t<Scalar>{}

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

• krylov_exponential.hpp