#include <IpplOperations.h>

Inheritance diagram for ippl::detail::meta_hess< E >:

Collaboration diagram for ippl::detail::meta_hess< E >:

Public Member Functions
KOKKOS_FUNCTION	meta_hess (const E &u, const typename E::Mesh_t::vector_type vectors[], const typename E::Mesh_t::vector_type &hvector)
template<typename... Idx>
KOKKOS_INLINE_FUNCTION auto	operator() (const Idx... args) const
KOKKOS_INLINE_FUNCTION auto	operator[] (size_t i) const

Static Public Attributes
static constexpr unsigned	dim = E::dim

Private Types
using	Mesh_t = typename E::Mesh_t
using	vector_type = typename Mesh_t::vector_type
using	matrix_type = typename Mesh_t::matrix_type

Private Member Functions
template<size_t... row, typename... Idx>
KOKKOS_INLINE_FUNCTION constexpr void	computeHessian (const std::index_sequence< row... > &is, matrix_type &hessian, const Idx... args) const
template<size_t row, size_t... col, typename... Idx>
KOKKOS_INLINE_FUNCTION constexpr int	hessianRow (const std::index_sequence< col... > &, matrix_type &hessian, const Idx... args) const
template<size_t row, size_t col, typename... Idx>
KOKKOS_INLINE_FUNCTION constexpr vector_type	hessianEntry (const Idx... args) const

Private Attributes
const E	u_m
vector_type	vectors_m [dim]
const vector_type	hvector_m

Detailed Description

template<typename E>
struct ippl::detail::meta_hess< E >

Meta function of Hessian

Definition at line 518 of file IpplOperations.h.

Member Typedef Documentation

◆ matrix_type

template<typename E>

using ippl::detail::meta_hess< E >::matrix_type = typename Mesh_t::matrix_type

private

Definition at line 548 of file IpplOperations.h.

◆ Mesh_t

template<typename E>

using ippl::detail::meta_hess< E >::Mesh_t = typename E::Mesh_t

private

Definition at line 546 of file IpplOperations.h.

◆ vector_type

template<typename E>

using ippl::detail::meta_hess< E >::vector_type = typename Mesh_t::vector_type

private

Definition at line 547 of file IpplOperations.h.

Constructor & Destructor Documentation

◆ meta_hess()

template<typename E>

KOKKOS_FUNCTION ippl::detail::meta_hess< E >::meta_hess	(	const E &	u,
		const typename E::Mesh_t::vector_type	vectors[],
		const typename E::Mesh_t::vector_type &	hvector )

inline

Definition at line 526 of file IpplOperations.h.

References hvector_m, u_m, and vectors_m.

Member Function Documentation

◆ computeHessian()

template<typename E>

template<size_t... row, typename... Idx>

KOKKOS_INLINE_FUNCTION constexpr void ippl::detail::meta_hess< E >::computeHessian	(	const std::index_sequence< row... > &	is,
		matrix_type &	hessian,
		const Idx...	args ) const

inlineconstexprprivate

Utility function for computing the Hessian. Computes the rows of the matrix one by one via fold expression.

Template Parameters

row...	the row indices (in practice, the sequence 0...Dim - 1)
Idx...	the indices at which to access the field view

Parameters

is	index sequence (reused for row computation)
hessian	matrix in which to store the Hessian
args...	the indices

Definition at line 564 of file IpplOperations.h.

References hessianRow().

Referenced by operator()().

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◆ hessianEntry()

template<typename E>

template<size_t row, size_t col, typename... Idx>

KOKKOS_INLINE_FUNCTION constexpr vector_type ippl::detail::meta_hess< E >::hessianEntry ( const Idx... args ) const

inlineconstexprprivate

Utility function for computing the Hessian. Computes a single entry of the matrix

Template Parameters

row	the row index
col	the column index
Idx...	the indices at which to access the field view

Parameters

args... the indices

Returns: The entry of the Hessian at the given row and column

Definition at line 602 of file IpplOperations.h.

References ippl::apply(), dim, hvector_m, u_m, and vectors_m.

Referenced by hessianRow().

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◆ hessianRow()

template<typename E>

template<size_t row, size_t... col, typename... Idx>

KOKKOS_INLINE_FUNCTION constexpr int ippl::detail::meta_hess< E >::hessianRow	(	const std::index_sequence< col... > &	,
		matrix_type &	hessian,
		const Idx...	args ) const

inlineconstexprprivate

Utility function for computing the Hessian. Computes the entries in a single row of the matrix via fold expression.

Template Parameters

row	the row index
col...	the column indices (in practice, the sequence 0...Dim - 1)
Idx...	the indices at which to access the field view

Parameters

hessian	matrix in which to store the hessian
args...	the indices

Returns: An unused dummy value (required to allow use of a more performant fold expression)

Definition at line 585 of file IpplOperations.h.

References hessianEntry().

Referenced by computeHessian().

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◆ operator()()

template<typename E>

template<typename... Idx>

KOKKOS_INLINE_FUNCTION auto ippl::detail::meta_hess< E >::operator() ( const Idx... args ) const

inline

Definition at line 539 of file IpplOperations.h.

References computeHessian().

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◆ operator[]()

KOKKOS_INLINE_FUNCTION auto ippl::detail::Expression< E, N >::operator[] ( size_t i ) const

inlineinherited

Access single element of the expression

Definition at line 32 of file IpplExpressions.h.

Member Data Documentation

◆ dim

template<typename E>

unsigned ippl::detail::meta_hess< E >::dim = E::dim

staticconstexpr

Definition at line 523 of file IpplOperations.h.

Referenced by hessianEntry().

◆ hvector_m

template<typename E>

const vector_type ippl::detail::meta_hess< E >::hvector_m

private

Definition at line 552 of file IpplOperations.h.

Referenced by hessianEntry(), and meta_hess().

◆ u_m

template<typename E>

const E ippl::detail::meta_hess< E >::u_m

private

Definition at line 550 of file IpplOperations.h.

Referenced by hessianEntry(), and meta_hess().

◆ vectors_m

template<typename E>

vector_type ippl::detail::meta_hess< E >::vectors_m[dim]

private

Definition at line 551 of file IpplOperations.h.

Referenced by hessianEntry(), and meta_hess().

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

IpplOperations.h

Public Member Functions

Static Public Attributes

Private Types

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ matrix_type

◆ Mesh_t

◆ vector_type

Constructor & Destructor Documentation

◆ meta_hess()

Member Function Documentation

◆ computeHessian()

◆ hessianEntry()

◆ hessianRow()

◆ operator()()

◆ operator[]()

Member Data Documentation

◆ dim

◆ hvector_m

◆ u_m

◆ vectors_m