#include <Panzer_Integrator_GradBasisTimesScalar_decl.hpp>

Inheritance diagram for panzer::Integrator_GradBasisTimesScalar< EvalT, Traits >:

Classes
struct	FieldMultTag
	This empty struct allows us to optimize operator()() depending on the number of field multipliers. More...

Public Member Functions
	Integrator_GradBasisTimesScalar (const panzer::EvaluatorStyle &evalStyle, const std::vector< std::string > &resNames, const std::string &scalar, const panzer::BasisIRLayout &basis, const panzer::IntegrationRule &ir, const double &multiplier=1, const std::vector< std::string > &fmNames=std::vector< std::string >())
	Main Constructor.
	Integrator_GradBasisTimesScalar (const Teuchos::ParameterList &p)
	ParameterList Constructor.
void	postRegistrationSetup (typename Traits::SetupData d, PHX::FieldManager< Traits > &fm)
	Post-Registration Setup.
void	evaluateFields (typename Traits::EvalData d)
	Evaluate Fields.
template<int NUM_FIELD_MULT>
KOKKOS_INLINE_FUNCTION void	operator() (const FieldMultTag< NUM_FIELD_MULT > &tag, const std::size_t &cell) const
	Perform the integration.
template<int NUM_FIELD_MULT>
KOKKOS_INLINE_FUNCTION void	operator() (const FieldMultTag< NUM_FIELD_MULT > &, const size_t &cell) const
Public Member Functions inherited from panzer::EvaluatorWithBaseImpl< Traits >
void	setDetailsIndex (const int di)
	An evaluator builder sets the details index.
Public Member Functions inherited from panzer::DomainEvaluator
	DomainEvaluator (DomainType domain=ALL)
	Constructor.
virtual	~DomainEvaluator ()=default
	Default destructor.
void	setDomain (const DomainType domain)
	Set the domain for the evaluator.
DomainType	getDomain ()
	Get the domain for the evaluator.
virtual int	cellStartIndex (const panzer::Workset &workset) const
	Returns the starting cell for the specified domain for a given workset.
virtual int	cellEndIndex (const panzer::Workset &workset) const
	Returns the non-inclusive end cell for the specified domain for a given workset.

Private Types
using	ScalarT = typename EvalT::ScalarT
	The scalar type.
using	InnerView = PHX::UnmanagedView<ScalarT**>
using	OuterView = PHX::View<InnerView*>

Private Member Functions
Teuchos::RCP< Teuchos::ParameterList >	getValidParameters () const
	Get Valid Parameters.

Private Attributes
const panzer::EvaluatorStyle	evalStyle_
	An enum determining the behavior of this Evaluator.
std::vector< PHX::MDField< ScalarT, Cell, BASIS > >	fields_host_
	The fields to which we'll contribute, or in which we'll store, the result of computing this integral.
OuterView	fields_
PHX::MDField< const ScalarT, Cell, IP >	scalar_
	A field representing the scalar function we're integrating ( ).
ScalarT	multiplier_
	The scalar multiplier out in front of the integral ( ).
std::vector< PHX::MDField< const ScalarT, Cell, IP > >	fieldMults_
	The scalar multiplier out in front of the integral ( ).
PHX::View< PHX::UnmanagedView< const ScalarT ** > * >	kokkosFieldMults_
	The PHX::View representation of the (possibly empty) list of fields that are multipliers out in front of the integral ( , , etc.).
int	numDims_
	The number of dimensions associated with the gradient.
std::string	basisName_
	The name of the basis we're using.
std::size_t	basisIndex_
	The index in the Workset bases for our particular BasisIRLayout name.
PHX::MDField< double, panzer::Cell, panzer::BASIS, panzer::IP, panzer::Dim >	basis_
	The gradient vector basis information necessary for integration.

Additional Inherited Members
Public Types inherited from panzer::DomainEvaluator
enum	DomainType : int { OWNED =0 , GHOST =1 , REAL =2 , VIRTUAL =3 , EXTERNAL =4 , ALL =5 }
	Domain types supported by worksets. More...
Protected Attributes inherited from panzer::EvaluatorWithBaseImpl< Traits >
WorksetDetailsAccessor	wda

Detailed Description

template<typename EvalT, typename Traits>
class panzer::Integrator_GradBasisTimesScalar< EvalT, Traits >

Definition at line 80 of file Panzer_Integrator_GradBasisTimesScalar_decl.hpp.

Member Typedef Documentation

◆ ScalarT

template<typename EvalT, typename Traits>

using panzer::Integrator_GradBasisTimesScalar< EvalT, Traits >::ScalarT = typename EvalT::ScalarT

private

The scalar type.

Definition at line 257 of file Panzer_Integrator_GradBasisTimesScalar_decl.hpp.

◆ InnerView

template<typename EvalT, typename Traits>

using panzer::Integrator_GradBasisTimesScalar< EvalT, Traits >::InnerView = PHX::UnmanagedView<ScalarT**>

private

Definition at line 274 of file Panzer_Integrator_GradBasisTimesScalar_decl.hpp.

◆ OuterView

template<typename EvalT, typename Traits>

using panzer::Integrator_GradBasisTimesScalar< EvalT, Traits >::OuterView = PHX::View<InnerView*>

private

Definition at line 275 of file Panzer_Integrator_GradBasisTimesScalar_decl.hpp.

Constructor & Destructor Documentation

◆ Integrator_GradBasisTimesScalar() [1/2]

template<typename EvalT, typename Traits>

panzer::Integrator_GradBasisTimesScalar< EvalT, Traits >::Integrator_GradBasisTimesScalar	(	const panzer::EvaluatorStyle &	evalStyle,
		const std::vector< std::string > &	resNames,
		const std::string &	scalar,
		const panzer::BasisIRLayout &	basis,
		const panzer::IntegrationRule &	ir,
		const double &	multiplier = 1,
		const std::vector< std::string > &	fmNames = std::vector<std::string>() )

Main Constructor.

Creates an Evaluator to evaluate the integral

$\‍[ Ma(x)b(x)\cdots\int s(x)\nabla\phi(x)\,dx, \‍]$

where $ M $ is some constant, $ a(x) $ , $ b(x) $ , etc., are some fields that depend on position, $ s $ is some scalar function, and $\phi$ is some vector basis.

Parameters

[in]	evalStyle	An enum declaring the behavior of this Evaluator, which is to either: compute and contribute (CONTRIBUTES), or compute and store (EVALUATES).
[in]	resNames	The names of either the contributed or evaluated fields, depending on evalStyle.
[in]	scalar	The name of the scalar function being integrated ( ).
[in]	basis	The basis that you'd like to use ( $\phi$ ).
[in]	ir	The integration rule that you'd like to use.
[in]	multiplier	The scalar multiplier out in front of the integral you're computing ( ). If not specified, this defaults to 1.
[in]	fmNames	A list of names of fields that are multipliers out in front of the integral you're computing ( , , etc.). If not specified, this defaults to an empty vector.

Exceptions

std::invalid_argument	If any of the inputs are invalid.
std::logic_error	If the basis supplied does not support the gradient operator, or if the dimension of the space doesn't match the size of resNames.

Definition at line 71 of file Panzer_Integrator_GradBasisTimesScalar_impl.hpp.

◆ Integrator_GradBasisTimesScalar() [2/2]

template<typename EvalT, typename Traits>

panzer::Integrator_GradBasisTimesScalar< EvalT, Traits >::Integrator_GradBasisTimesScalar ( const Teuchos::ParameterList & p )

ParameterList Constructor.

Creates an Evaluator to evaluate the integral

$\‍[ Ma(x)b(x)\cdots\int s(x)\nabla\phi(x)\,dx, \‍]$

where $ M $ is some constant, $ a(x) $ , $ b(x) $ , etc., are some fields that depend on position, $ s $ is some scalar function, and $\phi$ is some vector basis.

Note: This constructor exists to preserve the older way of creating an Evaluator with a ParameterList; however, it is strongly advised that you not use this ParameterList Constructor, but rather that you favor the main constructor with its compile-time argument checking instead.

Parameters

[in]

p

A ParameterList of the form

<ParameterList>
  <Parameter name = "Residual Names"     type = "std::vector<std::string>"            value = (required)    />
  <Parameter name = "Scalar Name"        type = "std::string"                         value = (required)    />
  <Parameter name = "Basis"              type = "RCP<panzer::BasisIRLayout>"          value = (required)    />
  <Parameter name = "IR"                 type = "RCP<panzer::IntegrationRule>"        value = (required)    />
  <Parameter name = "Multiplier"         type = "double"                              value = (required)    />
  <Parameter name = "Field Multipliers"  type = "RCP<const std::vector<std::string>>" value = null (default)/>
</ParameterList>

where

"Residual Names" are the names for the terms this Evaluator is evaluating,
"Scalar Name" is the name of the scalar function being integrated ( ),
"Basis" is the basis that you'd like to use ( $\phi$ ),
"IR" is the integration rule that you'd like to use,
"Multiplier" is the scalar multiplier out in front of the integral you're computing ( ), and
"Field Multipliers" is an optional list of names of fields that are multipliers out in front of the integral you're computing ( , , etc.).

Definition at line 167 of file Panzer_Integrator_GradBasisTimesScalar_impl.hpp.

Member Function Documentation

◆ postRegistrationSetup()

template<typename EvalT, typename Traits>

void panzer::Integrator_GradBasisTimesScalar< EvalT, Traits >::postRegistrationSetup	(	typename Traits::SetupData	d,
		PHX::FieldManager< Traits > &	fm )

Post-Registration Setup.

Sets the basis index, and gets the PHX::View versions of the field multipliers, if there are any.

Parameters

[in]	sd	Essentially a list of Worksets, which are collections of cells (elements) that all live on a single process.
[in]	fm	This is an unused part of the Evaluator interface.

Definition at line 198 of file Panzer_Integrator_GradBasisTimesScalar_impl.hpp.

◆ evaluateFields()

template<typename EvalT, typename Traits>

void panzer::Integrator_GradBasisTimesScalar< EvalT, Traits >::evaluateFields ( typename Traits::EvalData d )

Evaluate Fields.

This actually performs the integration by calling operator()() in a Kokkos::parallel_for over the cells in the Workset.

Parameters

[in] workset The Workset on which you're going to do the integration.

Definition at line 296 of file Panzer_Integrator_GradBasisTimesScalar_impl.hpp.

◆ operator()() [1/2]

template<typename EvalT, typename Traits>

template<int NUM_FIELD_MULT>

KOKKOS_INLINE_FUNCTION void panzer::Integrator_GradBasisTimesScalar< EvalT, Traits >::operator()	(	const FieldMultTag< NUM_FIELD_MULT > &	tag,
		const std::size_t &	cell ) const

Perform the integration.

Generally speaking, for a given cell in the Workset, this routine loops over quadrature points, bases, and dimensions to perform the integration, scaling the vector field to be integrated by the multiplier ( $ M $ ) and any field multipliers ( $ a(x) $ , $b(x) $ , etc.).

Note: Optimizations are made for the cases in which we have no field multipliers or only a single one.

Parameters

[in]	tag	An indication of the number of field multipliers we have; either 0, 1, or something else.
[in]	cell	The cell in the Workset over which to integrate.

◆ getValidParameters()

template<typename EvalT, typename TRAITS>

Teuchos::RCP< Teuchos::ParameterList > panzer::Integrator_GradBasisTimesScalar< EvalT, TRAITS >::getValidParameters ( ) const

private

Get Valid Parameters.

Get all the parameters that we support such that the ParameterList Constructor can do some validation of the input ParameterList.

Returns: A ParameterList with all the valid parameters (keys) in it. The values tied to those keys are meaningless default values.

Definition at line 324 of file Panzer_Integrator_GradBasisTimesScalar_impl.hpp.

◆ operator()() [2/2]

template<typename EvalT, typename Traits>

template<int NUM_FIELD_MULT>

KOKKOS_INLINE_FUNCTION void panzer::Integrator_GradBasisTimesScalar< EvalT, Traits >::operator()	(	const FieldMultTag< NUM_FIELD_MULT > &	,
		const size_t &	cell ) const