Detailed Description

template<typename ValueType, typename Input, typename WindowFunction, typename PartialWindowFunction>
class thrill::api::OverlapWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >

Definition at line 142 of file window.hpp.

Inheritance diagram for OverlapWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >:

Collaboration diagram for OverlapWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >:

#include <window.hpp>

Public Member Functions
template<typename ParentDIA >
	OverlapWindowNode (const ParentDIA &parent, const char *label, size_t window_size, const WindowFunction &window_function, const PartialWindowFunction &partial_window_function)

void	Execute () final

void	PushData (bool consume) final
	Virtual method for pushing data. Triggers actual pushing in sub-classes. More...

Public Member Functions inherited from BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >
template<typename ParentDIA >
	BaseWindowNode (const ParentDIA &parent, const char *label, size_t window_size, const WindowFunction &window_function, const PartialWindowFunction &partial_window_function)

void	Dispose () final
	Virtual clear method. Triggers actual disposing in sub-classes. More...

bool	OnPreOpFile (const data::File &file, size_t) final

void	PreOp (const Input &input)
	PreOp: keep last k - 1 items (local window) and store items. More...

DIAMemUse	PreOpMemUse () final
	Amount of RAM used by PreOp after StartPreOp() More...

DIAMemUse	PushDataMemUse () final
	Amount of RAM used by PushData() More...

void	StartPreOp (size_t) final
	Virtual method for preparing start of PushData. More...

void	StopPreOp (size_t) final
	Virtual method for preparing end of PushData. More...

Public Member Functions inherited from DOpNode< ValueType >
	DOpNode (Context &ctx, const char *label, const std::initializer_list< size_t > &parent_ids, const std::initializer_list< DIABasePtr > &parents)
	Constructor for a DOpNode, which sets references to the parent nodes. More...

	DOpNode (Context &ctx, const char *label, std::vector< size_t > &&parent_ids, std::vector< DIABasePtr > &&parents)
	Constructor for a DOpNode, which sets references to the parent nodes. More...

Public Member Functions inherited from DIANode< ValueType >
	DIANode (Context &ctx, const char *label, const std::initializer_list< size_t > &parent_ids, const std::initializer_list< DIABasePtr > &parents)
	Constructor for a DIANode, which sets references to the parent nodes. More...

	DIANode (Context &ctx, const char *label, std::vector< size_t > &&parent_ids, std::vector< DIABasePtr > &&parents)
	Constructor for a DIANode, which sets references to the parent nodes. More...

virtual void	AddChild (DIABase *node, const Callback &callback=Callback(), size_t parent_index=0)
	Enables children to push their "folded" function chains to their parent. More...

std::vector< DIABase * >	children () const override
	Returns the children of this DIABase. More...

void	PushFile (data::File &file, bool consume) const

void	PushItem (const ValueType &item) const
	Method for derived classes to Push a single item to all children. More...

void	RemoveAllChildren () override

void	RemoveChild (DIABase *node) override

void	RunPushData () override

Public Member Functions inherited from DIABase
	DIABase (Context &ctx, const char *label, const std::initializer_list< size_t > &parent_ids, const std::initializer_list< DIABasePtr > &parents)
	The constructor for a DIABase. More...

	DIABase (Context &ctx, const char *label, std::vector< size_t > &&parent_ids, std::vector< DIABasePtr > &&parents)
	The constructor for a DIABase. More...

	DIABase (const DIABase &)=delete
	non-copyable: delete copy-constructor More...

	DIABase (DIABase &&)=default
	move-constructor: default More...

virtual	~DIABase ()
	Virtual destructor for a DIABase. More...

virtual size_t	consume_counter () const
	Returns consume_counter_. More...

Context &	context ()
	Returns the api::Context of this DIABase. More...

virtual void	DecConsumeCounter (size_t counter)

const size_t &	dia_id () const
	return unique id of DIANode subclass as stored by StatsNode More...

virtual bool	ForwardDataOnly () const

virtual void	IncConsumeCounter (size_t counter)

const char *	label () const
	return label() of DIANode subclass as stored by StatsNode More...

mem::Manager &	mem_manager ()
	Return the Context's memory manager. More...

DIABase &	operator= (const DIABase &)=delete
	non-copyable: delete assignment operator More...

DIABase &	operator= (DIABase &&)=default
	move-assignment operator: default More...

std::vector< size_t >	parent_ids () const
	Returns the parents of this DIABase. More...

const std::vector< DIABasePtr > &	parents () const
	Returns the parents of this DIABase. More...

void	RemoveParent (DIABase *p)
	Remove a parent. More...

virtual bool	RequireParentPushData (size_t) const

void	RunScope ()

void	set_mem_limit (const DIAMemUse &mem_limit)

void	set_state (const DIAState &state)

virtual void	SetConsumeCounter (size_t counter)

DIAState	state () const

virtual DIAMemUse	ExecuteMemUse ()
	Amount of RAM used by Execute() More...

Public Member Functions inherited from ReferenceCounter
	ReferenceCounter () noexcept
	new objects have zero reference count More...

	ReferenceCounter (const ReferenceCounter &) noexcept
	coping still creates a new object with zero reference count More...

	~ReferenceCounter ()

bool	dec_reference () const noexcept
	Call whenever resetting (i.e. More...

void	inc_reference () const noexcept
	Call whenever setting a pointer to the object. More...

ReferenceCounter &	operator= (const ReferenceCounter &) noexcept
	assignment operator, leaves pointers unchanged More...

size_t	reference_count () const noexcept
	Return the number of references to this object (for debugging) More...

bool	unique () const noexcept
	Test if the ReferenceCounter is referenced by only one CountingPtr. More...

Private Types
using	RingBuffer = common::RingBuffer< Input >
	RingBuffer used and passed to user-defined function. More...

using	Super = BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >

Additional Inherited Members
Public Types inherited from DOpNode< ValueType >
using	Super = DIANode< ValueType >

Public Types inherited from DIANode< ValueType >
using	Callback = tlx::delegate< void(const ValueType &)>

Public Types inherited from DIABase
using	DIABasePtr = tlx::CountingPtr< DIABase >

Public Attributes inherited from DIABase
common::JsonLogger	logger_

Static Public Attributes inherited from DIABase
static constexpr size_t	kNeverConsume = static_cast<size_t>(-1)
	Never full consume. More...

Protected Types inherited from BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >
using	RingBuffer = common::RingBuffer< Input >
	RingBuffer used and passed to user-defined function. More...

using	Super = DOpNode< ValueType >

Protected Attributes inherited from BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >
data::File	file_ { context_.GetFile(this) }
	Local data file. More...

size_t	first_rank_
	rank of our first element in file_ More...

const bool	parent_stack_empty_
	Whether the parent stack is empty. More...

PartialWindowFunction	partial_window_function_
	The window function which is applied to the last < k elements. More...

RingBuffer	window_
	cache the last k - 1 items for transmission More...

WindowFunction	window_function_
	The window function which is applied to k elements. More...

size_t	window_size_
	Size k of the window. More...

data::File::Writer	writer_ { file_.GetWriter() }
	Data writer to local file (only active in PreOp). More...

Protected Attributes inherited from DIANode< ValueType >
std::vector< Child >	children_
	Callback functions from the child nodes. More...

Protected Attributes inherited from DIABase
Context &	context_
	associated Context More...

const size_t	dia_id_
	DIA serial id. More...

const char *const	label_
	DOp node static label. More...

DIAState	state_ = DIAState::NEW
	State of the DIANode. State is NEW on creation. More...

std::vector< DIABasePtr >	parents_
	Parents of this DIABase. More...

DIAMemUse	mem_limit_ = 0

size_t	consume_counter_ = 1

Static Protected Attributes inherited from BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >
static constexpr bool	debug = false

Member Typedef Documentation

◆ RingBuffer

using RingBuffer = common::RingBuffer<Input>

private

RingBuffer used and passed to user-defined function.

Definition at line 41 of file window.hpp.

◆ Super

using Super = BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction>

private

Definition at line 147 of file window.hpp.

Constructor & Destructor Documentation

◆ OverlapWindowNode()

OverlapWindowNode	(	const ParentDIA &	parent,
		const char *	label,
		size_t	window_size,
		const WindowFunction &	window_function,
		const PartialWindowFunction &	partial_window_function
	)

inline

Definition at line 155 of file window.hpp.

Member Function Documentation

◆ Execute()

void Execute ( )

inlinefinalvirtual

Executes the window operation by receiving k - 1 items from our preceding worker.

Implements DIABase.

Definition at line 164 of file window.hpp.

References DIABase::context_, FlowControlChannel::ExPrefixSum(), BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >::file_, BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >::first_rank_, min(), RingBuffer< Type, Allocator >::move_to(), Context::net, File::num_items(), FlowControlChannel::Predecessor(), RingBuffer< Type, Allocator >::push_back(), RingBuffer< Type, Allocator >::size(), sLOG, BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >::window_, and BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >::window_size_.

◆ PushData()

void PushData ( bool consume )

inlinefinalvirtual

Virtual method for pushing data. Triggers actual pushing in sub-classes.

Implements DIABase.

Definition at line 191 of file window.hpp.

References DIABase::context_, RingBuffer< Type, Allocator >::emplace_back(), BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >::file_, BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >::first_rank_, File::GetReader(), Context::my_rank(), BlockReader< BlockSource >::Next(), File::num_items(), Context::num_workers(), BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >::partial_window_function_, RingBuffer< Type, Allocator >::pop_front(), DIANode< ValueType >::PushItem(), RingBuffer< Type, Allocator >::size(), sLOG, BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >::window_, BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >::window_function_, and BaseWindowNode< ValueType, Input, WindowFunction, PartialWindowFunction >::window_size_.

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

thrill/api/window.hpp