Implementation of all common tape functionality. More...

#include <commonTapeImplementation.hpp>

Inheritance diagram for codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >:

[legend]

Public Types
using	Gradient = typename ImplTapeTypes::Gradient
	See TapeTypesInterface.

using	Identifier = typename ImplTapeTypes::Identifier
	See TapeTypesInterface.

using	Impl = T_Impl
	See CommonTapeImplementation.

using	ImplTapeTypes = T_ImplTapeTypes
	See CommonTapeImplementation.

using	LowLevelFunctionByteData = typename CommonTapeTypes<ImplTapeTypes>::LowLevelFunctionByteData
	See CommonTapeTypes.

using	LowLevelFunctionInfoData = typename CommonTapeTypes<ImplTapeTypes>::LowLevelFunctionInfoData
	See CommonTapeTypes.

using	NestedData = LowLevelFunctionByteData
	Shorthand.

using	NestedPosition = typename LowLevelFunctionByteData::Position
	Shorthand.

using	Position = typename CommonTapeTypes<ImplTapeTypes>::Position
	See TapeTypesInterface.

using	Real = typename ImplTapeTypes::Real
	See TapeTypesInterface.

Public Types inherited from codi::FullTapeInterface< T_ImplTapeTypes::Real, T_ImplTapeTypes::Gradient, T_ImplTapeTypes::Identifier, CommonTapeTypes< T_ImplTapeTypes >::Position >
using	Gradient
	See FullTapeInterface.

using	Identifier
	See FullTapeInterface.

using	Position
	See FullTapeInterface.

using	Real
	See FullTapeInterface.

Public Types inherited from codi::CustomAdjointVectorEvaluationTapeInterface< T_Position >
using	Position = T_Position
	See CustomAdjointVectorEvaluationTapeInterface.

Public Types inherited from codi::ForwardEvaluationTapeInterface< T_Position >
using	Position = T_Position
	See ForwardEvaluationTapeInterface.

Public Types inherited from codi::PositionalEvaluationTapeInterface< T_Position >
using	Position = T_Position
	See PositionalEvaluationTapeInterface.

Public Types inherited from codi::DataManagementTapeInterface< T_Real, T_Identifier >
using	Identifier = T_Identifier
	See DataManagementTapeInterface.

using	Real = T_Real
	See DataManagementTapeInterface.

Public Types inherited from codi::ExternalFunctionTapeInterface< T_Real, T_Gradient, T_Identifier >
using	Gradient = T_Gradient
	See ExternalFunctionTapeInterface.

using	Identifier = T_Identifier
	See ExternalFunctionTapeInterface.

using	Real = T_Real
	See ExternalFunctionTapeInterface.

Public Types inherited from codi::GradientAccessTapeInterface< T_Gradient, T_Identifier >
using	Gradient = T_Gradient
	See GradientAccessTapeInterface.

using	Identifier = T_Identifier
	See GradientAccessTapeInterface.

Public Types inherited from codi::IdentifierInformationTapeInterface< T_Real, T_Gradient, T_Identifier >
using	Gradient = T_Gradient
	See IdentifierInformationTapeInterface.

using	Identifier = T_Identifier
	See IdentifierInformationTapeInterface.

using	Real = T_Real
	See IdentifierInformationTapeInterface.

Public Types inherited from codi::InternalStatementRecordingTapeInterface< T_Identifier >
using	Identifier = T_Identifier
	See InternalStatementRecordingTapeInterface.

Public Types inherited from codi::LowLevelFunctionTapeInterface< T_Real, T_Gradient, T_Identifier >
using	Gradient = T_Gradient
	See LowLevelFunctionTapeInterface.

using	Identifier = T_Identifier
	See LowLevelFunctionTapeInterface.

using	Real = T_Real
	See LowLevelFunctionTapeInterface.

Public Types inherited from codi::ManualStatementPushTapeInterface< T_Real, T_Gradient, T_Identifier >
using	Gradient = T_Gradient
	See ManualStatementPushTapeInterface.

using	Identifier = T_Identifier
	See ManualStatementPushTapeInterface.

using	Real = T_Real
	See ManualStatementPushTapeInterface.

Public Types inherited from codi::PreaccumulationEvaluationTapeInterface< T_Real, T_Gradient, T_Identifier, T_Position >
using	Gradient = T_Gradient
	See PreaccumulationEvaluationTapeInterface.

using	Identifier = T_Identifier
	See PreaccumulationEvaluationTapeInterface.

using	Position = T_Position
	See PreaccumulationEvaluationTapeInterface.

using	Real = T_Real
	See PreaccumulationEvaluationTapeInterface.

Public Types inherited from codi::PrimalEvaluationTapeInterface< T_Real, T_Identifier, T_Position >
using	Identifier = T_Identifier
	See PrimalEvaluationTapeInterface.

using	Position = T_Position
	See PrimalEvaluationTapeInterface.

using	Real = T_Real
	See PrimalEvaluationTapeInterface.

Public Types inherited from codi::ReverseTapeInterface< T_Real, T_Gradient, T_Identifier >
using	Gradient = T_Gradient
	See ReverseTapeInterface.

using	Identifier = T_Identifier
	See ReverseTapeInterface.

using	PassiveReal = RealTraits::PassiveReal<Real>
	Basic computation type.

using	Real = T_Real
	See ReverseTapeInterface.

Public Member Functions
	CommonTapeImplementation ()
	Constructor.

	CommonTapeImplementation (CommonTapeImplementation &&)=delete
	Do not allow move construction. Relevant use cases should be covered by swap.

	CommonTapeImplementation (CommonTapeImplementation const &)=delete
	Do not allow copy construction.

CommonTapeImplementation &	operator= (CommonTapeImplementation &&)=delete
	Do not allow move assignment. Relevant use cases should be covered by swap.

CommonTapeImplementation &	operator= (CommonTapeImplementation const &)=delete
	Do not allow copy assignment.

Functions from GradientAccessTapeInterface
void	setGradient (Identifier const &identifier, Gradient const &gradient, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Set the gradient.

Gradient const &	getGradient (Identifier const &identifier, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic) const
	Set the gradient.

Functions from ReverseTapeInterface
void	evaluate (AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Perform a full reverse evaluation of the tape.

template<typename Lhs >
void	registerOutput (LhsExpressionInterface< Real, Gradient, Impl, Lhs > &value)

void	setActive ()
	Start/continue recording of statements.

void	setPassive ()
	Stop/interrupt recording of statements.

bool	isActive () const
	Check if the tape is recording.

template<typename Stream = std::ostream>
void	printStatistics (Stream &out=std::cout) const
	Default formatting of TapeValues.

template<typename Stream = std::ostream>
void	printTableHeader (Stream &out=std::cout) const
	Table header output of TapeValues.

template<typename Stream = std::ostream>
void	printTableRow (Stream &out=std::cout) const
	Table row output of TapeValues.

TapeValues	getTapeValues () const
	Get current tape values.

void	reset (bool resetAdjoints=true, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Reset the tape to the initial state for a fresh recording.

Functions from DataManagementTapeInterface
void	swap (Impl &other)
	Swap all data with an other tape.

void	resetHard ()
	Delete everything and return to the state after construction, as far as possible.


void	writeToFile (const std::string &filename)
	See File IO functions.

void	readFromFile (const std::string &filename)
	See File IO functions.

void	deleteData ()
	See File IO functions.

std::set< TapeParameters > const &	getAvailableParameters () const
	See Parameters functions.

size_t	getParameter (TapeParameters parameter) const
	See Parameters functions.

bool	hasParameter (TapeParameters parameter) const
	See Parameters functions.

void	setParameter (TapeParameters parameter, size_t value)
	See Parameters functions.

Functions from ExternalFunctionTapeInterface
void	pushExternalFunction (ExternalFunction< Impl > const &extFunc)

Functions from ForwardEvaluationTapeInterface
void	evaluateForward (AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Perform a forward evaluation of a part of the tape. It has to hold start <= end.

Functions from IdentifierInformationTapeInterface
Identifier	getPassiveIndex () const
	Identifier for passive values. Usually 0.

Identifier	getInvalidIndex () const
	Invalid identifier.

bool	isIdentifierActive (Identifier const &index) const

template<typename Lhs >
void	deactivateValue (LhsExpressionInterface< Real, Gradient, Impl, Lhs > &value)

Functions from PositionalEvaluationTapeInterface
Position	getPosition () const
	Current position of the tape.

Position	getZeroPosition () const
	Initial position of the tape.


void	resetTo (Position const &pos, bool resetAdjoints=true, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Reset the tape to the provided position.

Functions from PrimalEvaluationTapeInterface
void	evaluatePrimal ()
	Perform a full (forward) reevaluation of the primals in the tape.

void	setPrimal (Identifier const &identifier, Real const &primal)
	Set primal value.

Real const &	getPrimal (Identifier const &identifier) const
	Get primal value.

Public Member Functions inherited from codi::CustomAdjointVectorEvaluationTapeInterface< T_Position >
template<typename Adjoint >
void	evaluate (Position const &start, Position const &end, Adjoint *data)
	Perform a reverse evaluation for a part of the tape. It hast to hold start >= end.

template<typename Adjoint >
void	evaluateForward (Position const &start, Position const &end, Adjoint *data)
	Perform a forward evaluation of a part of the tape. It has to hold start <= end.

Public Member Functions inherited from codi::ForwardEvaluationTapeInterface< T_Position >
void	evaluateForward (Position const &start, Position const &end, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Perform a forward evaluation of a part of the tape. It has to hold start <= end.

void	evaluateForward (AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Perform a forward evaluation of the full tape.

Public Member Functions inherited from codi::PositionalEvaluationTapeInterface< T_Position >
void	evaluate (Position const &start, Position const &end, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Perform a reverse evaluation for a part of the tape. It hast to hold start >= end.

void	clearAdjoints (Position const &start, Position const &end, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Clear all adjoints that would be set in a tape evaluation from start to end. It has to hold start >= end.

Position	getPosition () const
	Current position of the tape.

Position	getZeroPosition () const
	Initial position of the tape.

void	resetTo (Position const &pos, bool resetAdjoints=true, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Reset the tape to the provided position.

Public Member Functions inherited from codi::DataManagementTapeInterface< T_Real, T_Identifier >
void	writeToFile (std::string const &filename) const
	See File IO functions.

void	readFromFile (std::string const &filename)
	See File IO functions.

void	deleteData ()
	See File IO functions.

std::set< TapeParameters > const &	getAvailableParameters () const
	See Parameters functions.

size_t	getParameter (TapeParameters parameter) const
	See Parameters functions.

bool	hasParameter (TapeParameters parameter) const
	See Parameters functions.

void	setParameter (TapeParameters parameter, size_t value)
	See Parameters functions.

VectorAccessInterface< Real, Identifier > *	createVectorAccess ()
	See Adjoint vector access.

template<typename Adjoint >
VectorAccessInterface< Real, Identifier > *	createVectorAccessCustomAdjoints (Adjoint *data)
	See Adjoint vector access.

void	deleteVectorAccess (VectorAccessInterface< Real, Identifier > *access)
	See Adjoint vector access.

void	resizeAdjointVector ()
	Explicitly trigger resizing of the adjoint vector. See Adjoint vector management.

void	deleteAdjointVector ()
	Delete the adjoint vector. See Adjoint vector management.

void	beginUseAdjointVector ()
	Declare that the adjoint vector is being used. See Adjoint vector management.

void	endUseAdjointVector ()
	Declare that the adjoint vector is no longer used. See Adjoint vector management.

void	swap (DataManagementTapeInterface &other)
	Swap all data with an other tape.

void	resetHard ()
	Delete everything and return to the state after construction, as far as possible.

Public Member Functions inherited from codi::ExternalFunctionTapeInterface< T_Real, T_Gradient, T_Identifier >
template<typename Lhs , typename Tape >
Real	registerExternalFunctionOutput (LhsExpressionInterface< Real, Gradient, Tape, Lhs > &value)

void	pushExternalFunction (ExternalFunction< ExternalFunctionTapeInterface > const &extFunc)

Public Member Functions inherited from codi::GradientAccessTapeInterface< T_Gradient, T_Identifier >
void	setGradient (Identifier const &identifier, Gradient const &gradient, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Set the gradient.

Gradient const &	getGradient (Identifier const &identifier, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic) const
	Set the gradient.

Gradient &	gradient (Identifier const &identifier, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Reference access to gradient.

Gradient const &	gradient (Identifier const &identifier, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic) const
	Constant reference access to gradient.

Public Member Functions inherited from codi::IdentifierInformationTapeInterface< T_Real, T_Gradient, T_Identifier >
Identifier	getPassiveIndex () const
	Identifier for passive values. Usually 0.

Identifier	getInvalidIndex () const
	Invalid identifier.

bool	isIdentifierActive (Identifier const &index) const

template<typename Lhs , typename Tape >
void	deactivateValue (LhsExpressionInterface< Real, Gradient, Tape, Lhs > &value)

Public Member Functions inherited from codi::InternalStatementRecordingTapeInterface< T_Identifier >
template<typename Real >
void	initIdentifier (Real &value, Identifier &identifier)

template<typename Real >
void	destroyIdentifier (Real &value, Identifier &identifier)
	Has to be called for each identifier, before it is deallocated.

template<typename Lhs , typename Rhs >
void	store (Lhs &lhs, Rhs const &rhs)
	Has to be called by an AD variable every time it is assigned.

Public Member Functions inherited from codi::LowLevelFunctionTapeInterface< T_Real, T_Gradient, T_Identifier >
TemporaryMemory &	getTemporaryMemory ()
	Temporary memory that can be used for dynamic data both during the evaluation and the recording.

void	pushLowLevelFunction (Config::LowLevelFunctionToken token, size_t size, ByteDataView &data)
	Push a low level function to the tape.

Config::LowLevelFunctionToken	registerLowLevelFunction (LowLevelFunctionEntry< LowLevelFunctionTapeInterface, Real, Identifier > const &entry)
	Register a low level function on the tape.

Public Member Functions inherited from codi::ManualStatementPushTapeInterface< T_Real, T_Gradient, T_Identifier >
void	pushJacobianManual (Real const &jacobian, Real const &value, Identifier const &index)

void	storeManual (Real const &lhsValue, Identifier &lhsIndex, Config::ArgumentSize const &size)

Public Member Functions inherited from codi::PreaccumulationEvaluationTapeInterface< T_Real, T_Gradient, T_Identifier, T_Position >
void	evaluateKeepState (Position const &start, Position const &end, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Perform a tape evaluation but restore the state afterwards such that it is the same as when the evaluation started. It hast to hold start >= end.

void	evaluateForwardKeepState (Position const &start, Position const &end, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Perform a tape evaluation but restore the state afterwards such that it is the same as when the evaluation started. It hast to hold start <= end.

Public Member Functions inherited from codi::PrimalEvaluationTapeInterface< T_Real, T_Identifier, T_Position >
void	evaluatePrimal (Position const &start, Position const &end)
	Perform a partly (forward) reevaluation of the primals in the tape. It has to hold start <= end.

void	evaluatePrimal ()
	Perform a full (forward) reevaluation of the primals in the tape.

void	setPrimal (Identifier const &identifier, Real const &gradient)
	Set primal value.

Real const &	getPrimal (Identifier const &identifier) const
	Get primal value.

Real &	primal (Identifier const &identifier)
	Writable reference to primal value.

Real const &	primal (Identifier const &identifier) const
	Read only reference to primal value.

void	revertPrimals (Position const &pos)
	Revert the primals to the state indicated by pos.

Public Member Functions inherited from codi::ReverseTapeInterface< T_Real, T_Gradient, T_Identifier >
template<typename Lhs , typename Tape >
void	registerInput (LhsExpressionInterface< Real, Gradient, Tape, Lhs > &value)

template<typename Lhs , typename Tape >
void	registerOutput (LhsExpressionInterface< Real, Gradient, Tape, Lhs > &value)

void	setActive ()
	Start/continue recording of statements.

void	setPassive ()
	Stop/interrupt recording of statements.

bool	isActive () const
	Check if the tape is recording.

void	evaluate (AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Perform a full reverse evaluation of the tape.

void	clearAdjoints (AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Clear all adjoint values, that is, set them to zero.

void	reset (bool resetAdjoints=true, AdjointsManagement adjointsManagement=AdjointsManagement::Automatic)
	Reset the tape to the initial state for a fresh recording.

template<typename Stream = std::ostream>
void	printStatistics (Stream &out=std::cout) const
	Default formatting of TapeValues.

template<typename Stream = std::ostream>
void	printTableHeader (Stream &out=std::cout) const
	Table header output of TapeValues.

template<typename Stream = std::ostream>
void	printTableRow (Stream &out=std::cout) const
	Table row output of TapeValues.

TapeValues	getTapeValues () const
	Get current tape values.

Protected Member Functions
void	deleteLowLevelFunctionData (Position const &pos)
	Delete all external function data up to `pos`.

void	incrementManualPushCounter ()
	Increment the manual push counter. Check against the declared push goal.

void	initializeManualPushData (Real const &lhsValue, Identifier const &lhsIndex, size_t size)
	Initialize all manual push data, including the counter. Check that a previous manual store is completed.

Interface definition
TapeValues	internalGetTapeValues () const
	Create tape values.

Internal helper functions
void	init (typename ImplTapeTypes::NestedData *nested)
	Initialize the base class.

Protected Attributes
bool	active
	Whether or not the tape is in recording mode.

TemporaryMemory	allocator
	Allocator for temporary memory.

LowLevelFunctionByteData	llfByteData
	Byte data for low level functions.

LowLevelFunctionInfoData	llfInfoData
	Token and size data for low level functions.

size_t	manualPushCounter
	Count the pushes after storeManual, to identify the last push.

size_t	manualPushGoal
	Store the number of expected pushes after a storeManual call.

Identifier	manualPushLhsIdentifier
	For storeManual, remember the identifier assigned to the lhs.

Real	manualPushLhsValue
	For storeManual, remember the value assigned to the lhs.

std::set< TapeParameters >	options
	All options.

Static Protected Attributes
static std::vector< LowLevelFunctionEntry< Impl, Real, Identifier > > *	lowLevelFunctionLookup = nullptr
	Lookup table for low level function.

Functions from LowLevelFunctionTapeInterface
void	internalStoreLowLevelFunction (Config::LowLevelFunctionToken token, size_t size, ByteDataView &dataView)
	Called by the implementing tapes to store a low level function. The size is reserved and allocated. The data view is populated with the pointer and can be used to write the data.

TemporaryMemory &	getTemporaryMemory ()
	Temporary memory that can be used for dynamic data both during the evaluation and the recording.

Config::LowLevelFunctionToken	registerLowLevelFunction (LowLevelFunctionEntry< Impl, Real, Identifier > const &entry)
	Register a low level function on the tape.

template<LowLevelFunctionEntryCallKind callType, typename... Args>
static void	callLowLevelFunction (Impl &impl, bool forward, size_t &curLLFByteDataPos, char dataPtr, size_t &curLLFTInfoDataPos, Config::LowLevelFunctionToken const tokenPtr, Config::LowLevelFunctionDataSize *const dataSizePtr, Args &&... args)
	Called by the implementing tapes during a tape evaluation when a low level function statement has been reached.

Additional Inherited Members
Static Public Member Functions inherited from codi::LowLevelFunctionTapeInterface< T_Real, T_Gradient, T_Identifier >
template<LowLevelFunctionEntryCallKind callType, typename... Args>
static void	callLowLevelFunction (LowLevelFunctionTapeInterface &tape, bool forward, size_t &curLLFByteDataPos, char dataPtr, size_t &curLLFInfoDataPos, Config::LowLevelFunctionToken const tokenPtr, Config::LowLevelFunctionDataSize *const dataSizePtr, Args &&... args)
	Internal function for evaluating a low level function entry.

Static Public Attributes inherited from codi::IdentifierInformationTapeInterface< T_Real, T_Gradient, T_Identifier >
static bool constexpr	LinearIndexHandling = false

Static Public Attributes inherited from codi::InternalStatementRecordingTapeInterface< T_Identifier >
static bool constexpr	AllowJacobianOptimization
	If certain operations can be hidden from the tape.

Static Public Attributes inherited from codi::PrimalEvaluationTapeInterface< T_Real, T_Identifier, T_Position >
static bool constexpr	HasPrimalValues = false
	True if the tape has primal values.

static bool constexpr	RequiresPrimalRestore
	True if the primal state changes during a reverse or forward evaluation.

Detailed Description

template<typename T_ImplTapeTypes, typename T_Impl>
struct codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >

Implementation of all common tape functionality.

This basic implementation provides the following functionality:

external function support with the external functions stored in externalFunctionData,
tape options gathering,
activity tracking.

It also provides functionality that can be implemented with other functions:

setter and getter methods,
non-positional evaluation methods,
registerOutput,
TapeValues functions,
reset functionality.

Template Parameters

T_ImplTapeTypes	must implement TapeTypesInterface.
T_Impl	Type of the full tape implementation.

Member Function Documentation

◆ deactivateValue()

template<typename T_ImplTapeTypes , typename T_Impl >

template<typename Lhs >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::deactivateValue ( LhsExpressionInterface< Real, Gradient, Impl, Lhs > & value )

inline

Modify the value such that it is no longer active.

Template Parameters

Lhs	Class that implements the LhsExpressionInterface. See also LhsExpressionInterface.
Tape	Tape implementation used in the LhsExpressionInterface. See also LhsExpressionInterface.

◆ deleteData()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::deleteData ( )

inline

See File IO functions.

◆ evaluate()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::evaluate ( AdjointsManagement adjointsManagement = AdjointsManagement::Automatic )

inline

Perform a full reverse evaluation of the tape.

Automatic adjoints management involves bounds checking, resizing, and locking, see AdjointsManagement for details.

◆ evaluateForward()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::evaluateForward ( AdjointsManagement adjointsManagement = AdjointsManagement::Automatic )

inline

Perform a forward evaluation of a part of the tape. It has to hold start <= end.

Automatic adjoints management involves bounds checking, resizing, and locking, see AdjointsManagement for details.

◆ evaluatePrimal()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::evaluatePrimal ( )

inline

Perform a full (forward) reevaluation of the primals in the tape.

◆ getAvailableParameters()

template<typename T_ImplTapeTypes , typename T_Impl >

std::set< TapeParameters > const & codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::getAvailableParameters ( ) const

inline

See Parameters functions.

◆ getGradient()

template<typename T_ImplTapeTypes , typename T_Impl >

Gradient const & codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::getGradient	(	Identifier const &	identifier,
		AdjointsManagement	adjointsManagement = AdjointsManagement::Automatic ) const

inline

Set the gradient.

Automatic adjoints management involves bounds checking and locking. If no adjoint variable with the given identifier exists, a reference to adjoints[0] is returned. See AdjointsManagement for details.

◆ getInvalidIndex()

template<typename T_ImplTapeTypes , typename T_Impl >

Identifier codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::getInvalidIndex ( ) const

inline

Invalid identifier.

◆ getParameter()

template<typename T_ImplTapeTypes , typename T_Impl >

size_t codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::getParameter ( TapeParameters parameter ) const

inline

See Parameters functions.

Implementation: Handles LLFByteDataSize, LLFInfoDataSize

◆ getPassiveIndex()

template<typename T_ImplTapeTypes , typename T_Impl >

Identifier codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::getPassiveIndex ( ) const

inline

Identifier for passive values. Usually 0.

◆ getPosition()

template<typename T_ImplTapeTypes , typename T_Impl >

Position codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::getPosition ( ) const

inline

Current position of the tape.

◆ getPrimal()

template<typename T_ImplTapeTypes , typename T_Impl >

Real const & codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::getPrimal ( Identifier const & identifier ) const

inline

Get primal value.

◆ getTapeValues()

template<typename T_ImplTapeTypes , typename T_Impl >

TapeValues codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::getTapeValues ( ) const

inline

Get current tape values.

◆ getTemporaryMemory()

template<typename T_ImplTapeTypes , typename T_Impl >

TemporaryMemory & codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::getTemporaryMemory ( )

inline

Temporary memory that can be used for dynamic data both during the evaluation and the recording.

◆ getZeroPosition()

template<typename T_ImplTapeTypes , typename T_Impl >

Position codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::getZeroPosition ( ) const

inline

Initial position of the tape.

◆ hasParameter()

template<typename T_ImplTapeTypes , typename T_Impl >

bool codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::hasParameter ( TapeParameters parameter ) const

inline

See Parameters functions.

◆ isActive()

template<typename T_ImplTapeTypes , typename T_Impl >

bool codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::isActive ( ) const

inline

Check if the tape is recording.

◆ isIdentifierActive()

template<typename T_ImplTapeTypes , typename T_Impl >

bool codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::isIdentifierActive ( Identifier const & index ) const

inline

True if the identifier is considered active by the tape.

◆ printStatistics()

template<typename T_ImplTapeTypes , typename T_Impl >

template<typename Stream = std::ostream>

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::printStatistics ( Stream & out = std::cout ) const

inline

Default formatting of TapeValues.

◆ printTableHeader()

template<typename T_ImplTapeTypes , typename T_Impl >

template<typename Stream = std::ostream>

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::printTableHeader ( Stream & out = std::cout ) const

inline

Table header output of TapeValues.

◆ printTableRow()

template<typename T_ImplTapeTypes , typename T_Impl >

template<typename Stream = std::ostream>

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::printTableRow ( Stream & out = std::cout ) const

inline

Table row output of TapeValues.

◆ pushExternalFunction()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::pushExternalFunction ( ExternalFunction< Impl > const & extFunc )

inline

Push an external function to the tape.

The external function class can be created via the helper ExternalFunction::create.

◆ readFromFile()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::readFromFile ( const std::string & filename )

inline

See File IO functions.

◆ registerLowLevelFunction()

template<typename T_ImplTapeTypes , typename T_Impl >

Config::LowLevelFunctionToken codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::registerLowLevelFunction ( LowLevelFunctionEntry< Impl, Real, Identifier > const & entry )

inline

Register a low level function on the tape.

◆ registerOutput()

template<typename T_ImplTapeTypes , typename T_Impl >

template<typename Lhs >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::registerOutput ( LhsExpressionInterface< Real, Gradient, Impl, Lhs > & value )

inline

Mark a value as output (dependent).

Template Parameters

Lhs	Class that implements the LhsExpressionInterface. See also LhsExpressionInterface.
Tape	Tape implementation used in the LhsExpressionInterface. See also LhsExpressionInterface.

◆ reset()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::reset	(	bool	resetAdjoints = true,
		AdjointsManagement	adjointsManagement = AdjointsManagement::Automatic )

inline

Reset the tape to the initial state for a fresh recording.

See Tutorial 5 - Repeated tape recordings for remarks on repeated tape recording in CoDiPack.

Automatic adjoints management involves locking, see AdjointsManagement for details.

◆ resetHard()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::resetHard ( )

inline

Delete everything and return to the state after construction, as far as possible.

Unlike other reset methods, this methods involves resizing the adjoint vector, this is not optional. Therefore, no codi::AdjointsManagement parameter is offered.

◆ resetTo()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::resetTo	(	Position const &	pos,
		bool	resetAdjoints = true,
		AdjointsManagement	adjointsManagement = AdjointsManagement::Automatic )

inline

Reset the tape to the provided position.

Automatic adjoints management involves locking, see AdjointsManagement for details.

◆ setActive()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::setActive ( )

inline

Start/continue recording of statements.

◆ setGradient()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::setGradient	(	Identifier const &	identifier,
		Gradient const &	gradient,
		AdjointsManagement	adjointsManagement = AdjointsManagement::Automatic )

inline

Set the gradient.

Automatic adjoints management involves bounds checking, resizing, and locking, see AdjointsManagement for details.

◆ setParameter()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::setParameter	(	TapeParameters	parameter,
		size_t	value )

inline

See Parameters functions.

Implementation: Handles LLFByteDataSize, LLFInfoDataSize

◆ setPassive()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::setPassive ( )

inline

Stop/interrupt recording of statements.

◆ setPrimal()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::setPrimal	(	Identifier const &	identifier,
		Real const &	primal )

inline

Set primal value.

◆ swap()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::swap ( Impl & other )

inline

Swap all data with an other tape.

◆ writeToFile()

template<typename T_ImplTapeTypes , typename T_Impl >

void codi::CommonTapeImplementation< T_ImplTapeTypes, T_Impl >::writeToFile ( const std::string & filename )

inline

See File IO functions.

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

include/codi/tapes/commonTapeImplementation.hpp

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Static Protected Attributes

Functions from LowLevelFunctionTapeInterface

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ deactivateValue()

◆ deleteData()

◆ evaluate()

◆ evaluateForward()

◆ evaluatePrimal()

◆ getAvailableParameters()

◆ getGradient()

◆ getInvalidIndex()

◆ getParameter()

◆ getPassiveIndex()

◆ getPosition()

◆ getPrimal()

◆ getTapeValues()

◆ getTemporaryMemory()

◆ getZeroPosition()

◆ hasParameter()

◆ isActive()

◆ isIdentifierActive()

◆ printStatistics()

◆ printTableHeader()

◆ printTableRow()

◆ pushExternalFunction()

◆ readFromFile()

◆ registerLowLevelFunction()

◆ registerOutput()

◆ reset()

◆ resetHard()

◆ resetTo()

◆ setActive()

◆ setGradient()

◆ setParameter()

◆ setPassive()

◆ setPrimal()

◆ swap()

◆ writeToFile()