vtkDistributedGraphHelper Class Reference

helper for the vtkGraph class that allows the graph to be distributed across multiple memory spaces. More...

#include <vtkDistributedGraphHelper.h>

Inheritance diagram for vtkDistributedGraphHelper:

Collaboration diagram for vtkDistributedGraphHelper:

Public Types
typedef vtkObject	Superclass

Public Member Functions
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.
vtkDistributedGraphHelper *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
vtkIdType	GetVertexOwner (vtkIdType v) const
	Returns owner of vertex v, by extracting top ceil(log2 P) bits of v.
vtkIdType	GetVertexIndex (vtkIdType v) const
	Returns local index of vertex v, by masking off top ceil(log2 P) bits of v.
vtkIdType	GetEdgeOwner (vtkIdType e_id) const
	Returns owner of edge with ID e_id, by extracting top ceil(log2 P) bits of e_id.
vtkIdType	GetEdgeIndex (vtkIdType e_id) const
	Returns local index of edge with ID e_id, by masking off top ceil(log2 P) bits of e_id.
vtkIdType	MakeDistributedId (int owner, vtkIdType local)
	Builds a distributed ID consisting of the given owner and the local ID.
void	SetVertexPedigreeIdDistribution (vtkVertexPedigreeIdDistribution Func, void *userData)
	Set the pedigreeId -> processor distribution function that determines how vertices are distributed when they are associated with pedigree ID, which must be a unique label such as a URL or IP address.
vtkIdType	GetVertexOwnerByPedigreeId (const vtkVariant &pedigreeId)
	Determine which processor owns the vertex with the given pedigree ID.
virtual void	Synchronize ()=0
	Synchronizes all of the processors involved in this distributed graph, so that all processors have a consistent view of the distributed graph for the computation that follows.
virtual vtkDistributedGraphHelper *	Clone ()=0
	Clones the distributed graph helper, returning another distributed graph helper of the same kind that can be used in another vtkGraph.
Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)
virtual void	DebugOn ()
	Turn debugging output on.
virtual void	DebugOff ()
	Turn debugging output off.
bool	GetDebug ()
	Get the value of the debug flag.
void	SetDebug (bool debugFlag)
	Set the value of the debug flag.
virtual void	Modified ()
	Update the modification time for this object.
virtual vtkMTimeType	GetMTime ()
	Return this object's modified time.
void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses.
void	RemoveObserver (unsigned long tag)
void	RemoveObservers (unsigned long event)
void	RemoveObservers (const char *event)
void	RemoveAllObservers ()
vtkTypeBool	HasObserver (unsigned long event)
vtkTypeBool	HasObserver (const char *event)
vtkTypeBool	InvokeEvent (unsigned long event)
vtkTypeBool	InvokeEvent (const char *event)
std::string	GetObjectDescription () const override
	The object description printed in messages and PrintSelf output.
unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
unsigned long	AddObserver (const char *event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
void	RemoveObservers (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
vtkTypeBool	HasObserver (const char *event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events.
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method.
vtkTypeBool	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not.
vtkTypeBool	InvokeEvent (const char *event, void *callData)
	This method invokes an event and return whether the event was aborted or not.
virtual void	SetObjectName (const std::string &objectName)
	Set/get the name of this object for reporting purposes.
virtual std::string	GetObjectName () const
	Set/get the name of this object for reporting purposes.
Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string.
virtual std::string	GetObjectDescription () const
	The object description printed in messages and PrintSelf output.
virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class.
virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
virtual void	Delete ()
	Delete a VTK object.
virtual void	FastDelete ()
	Delete a reference to this object.
void	InitializeObjectBase ()
void	Print (ostream &os)
	Print an object to an ostream.
void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object).
virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object).
int	GetReferenceCount ()
	Return the current reference count of this object.
void	SetReferenceCount (int)
	Sets the reference count.
bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.
virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.
virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses.
virtual bool	UsesGarbageCollector () const
	Indicate whether the class uses vtkGarbageCollector or not.

Static Public Member Functions
static vtkTypeBool	IsTypeOf (const char *type)
static vtkDistributedGraphHelper *	SafeDownCast (vtkObjectBase *o)
static vtkInformationIntegerKey *	DISTRIBUTEDVERTEXIDS ()
	Information Keys that distributed graphs can append to attribute arrays to flag them as containing distributed IDs.
static vtkInformationIntegerKey *	DISTRIBUTEDEDGEIDS ()
	Information Keys that distributed graphs can append to attribute arrays to flag them as containing distributed IDs.
Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
static void	BreakOnError ()
	This method is called when vtkErrorMacro executes.
static void	SetGlobalWarningDisplay (vtkTypeBool val)
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
static vtkTypeBool	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.
Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class.
static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkDistributedGraphHelper ()
	~vtkDistributedGraphHelper () override
virtual void	AddVertexInternal (vtkVariantArray *propertyArr, vtkIdType *vertex)=0
	Add a vertex, optionally with properties, to the distributed graph.
virtual void	AddVertexInternal (const vtkVariant &pedigreeId, vtkIdType *vertex)=0
	Add a vertex with the given pedigreeId to the distributed graph.
virtual void	AddEdgeInternal (vtkIdType u, vtkIdType v, bool directed, vtkVariantArray *propertyArr, vtkEdgeType *edge)=0
	Add an edge (u, v) to the distributed graph.
virtual void	AddEdgeInternal (const vtkVariant &uPedigreeId, vtkIdType v, bool directed, vtkVariantArray *propertyArr, vtkEdgeType *edge)=0
	Adds an edge (u, v) and returns the new edge.
virtual void	AddEdgeInternal (vtkIdType u, const vtkVariant &vPedigreeId, bool directed, vtkVariantArray *propertyArr, vtkEdgeType *edge)=0
	Adds an edge (u, v) and returns the new edge.
virtual void	AddEdgeInternal (const vtkVariant &uPedigreeId, const vtkVariant &vPedigreeId, bool directed, vtkVariantArray *propertyArr, vtkEdgeType *edge)=0
	Adds an edge (u, v) and returns the new edge.
virtual vtkIdType	FindVertex (const vtkVariant &pedigreeId)=0
	Try to find the vertex with the given pedigree ID.
virtual void	FindEdgeSourceAndTarget (vtkIdType id, vtkIdType *source, vtkIdType *target)=0
	Determine the source and target of the edge with the given ID.
virtual void	AttachToGraph (vtkGraph *graph)
	Attach this distributed graph helper to the given graph.
Protected Member Functions inherited from vtkObject
	vtkObject ()
	~vtkObject () override
void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override
void	InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events.
void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events.
Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()
virtual	~vtkObjectBase ()
virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)
virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)
virtual void	ReportReferences (vtkGarbageCollector *)
virtual void	ObjectFinalize ()
	vtkObjectBase (const vtkObjectBase &)
void	operator= (const vtkObjectBase &)

Protected Attributes
vtkGraph *	Graph
	The graph to which this distributed graph helper is already attached.
vtkVertexPedigreeIdDistribution	VertexDistribution
	The distribution function used to map a pedigree ID to a processor.
void *	VertexDistributionUserData
	Extra, user-specified data to be passed into the distribution function.
vtkIdType	signBitMask
	Bit mask to speed up decoding graph info {owner,index}.
vtkIdType	highBitShiftMask
	Bit mask to speed up decoding graph info {owner,index}.
int	procBits
	Number of bits required to represent # of processors (owner)
int	indexBits
	Number of bits required to represent {vertex,edge} index.
Protected Attributes inherited from vtkObject
bool	Debug
vtkTimeStamp	MTime
vtkSubjectHelper *	SubjectHelper
std::string	ObjectName
Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount
vtkWeakPointerBase **	WeakPointers

Friends
class	vtkGraph

Additional Inherited Members
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()
static vtkReallocingFunction	GetCurrentReallocFunction ()
static vtkFreeingFunction	GetCurrentFreeFunction ()
static vtkFreeingFunction	GetAlternateFreeFunction ()

Detailed Description

helper for the vtkGraph class that allows the graph to be distributed across multiple memory spaces.

A distributed graph helper can be attached to an empty vtkGraph object to turn the vtkGraph into a distributed graph, whose vertices and edges are distributed across several different processors. vtkDistributedGraphHelper is an abstract class. Use a subclass of vtkDistributedGraphHelper, such as vtkPBGLDistributedGraphHelper, to build distributed graphs.

The distributed graph helper provides facilities used by vtkGraph to communicate with other processors that store other parts of the same distributed graph. The only user-level functionality provided by vtkDistributedGraphHelper involves this communication among processors and the ability to map between "distributed" vertex and edge IDs and their component parts (processor and local index). For example, the Synchronize() method provides a barrier that allows all processors to catch up to the same point in the code before any processor can leave that Synchronize() call. For example, one would call Synchronize() after adding many edges to a distributed graph, so that all processors can handle the addition of inter-processor edges and continue, after the Synchronize() call, with a consistent view of the distributed graph. For more information about manipulating (distributed) graphs, see the vtkGraph documentation.

See also

vtkGraph

Definition at line 60 of file vtkDistributedGraphHelper.h.

Member Typedef Documentation

Superclass

typedef vtkObject vtkDistributedGraphHelper::Superclass

Definition at line 63 of file vtkDistributedGraphHelper.h.

Constructor & Destructor Documentation

vtkDistributedGraphHelper()

vtkDistributedGraphHelper::vtkDistributedGraphHelper ( )

protected

~vtkDistributedGraphHelper()

vtkDistributedGraphHelper::~vtkDistributedGraphHelper ( )

overrideprotected

Member Function Documentation

IsTypeOf()

static vtkTypeBool vtkDistributedGraphHelper::IsTypeOf ( const char *  type )

static

IsA()

virtual vtkTypeBool vtkDistributedGraphHelper::IsA ( const char *  name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkObjectBase.

SafeDownCast()

static vtkDistributedGraphHelper * vtkDistributedGraphHelper::SafeDownCast ( vtkObjectBase *  o )

static

NewInstanceInternal()

virtual vtkObjectBase * vtkDistributedGraphHelper::NewInstanceInternal ( ) const

protectedvirtual

NewInstance()

vtkDistributedGraphHelper * vtkDistributedGraphHelper::NewInstance

(

)

const

PrintSelf()

void vtkDistributedGraphHelper::PrintSelf ( ostream &  os, vtkIndent  indent  )

overridevirtual

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkObjectBase.

GetVertexOwner()

vtkIdType vtkDistributedGraphHelper::GetVertexOwner

(

vtkIdType

v

)

const

Returns owner of vertex v, by extracting top ceil(log2 P) bits of v.

GetVertexIndex()

vtkIdType vtkDistributedGraphHelper::GetVertexIndex

(

vtkIdType

v

)

const

Returns local index of vertex v, by masking off top ceil(log2 P) bits of v.

GetEdgeOwner()

vtkIdType vtkDistributedGraphHelper::GetEdgeOwner

(

vtkIdType

e_id

)

const

Returns owner of edge with ID e_id, by extracting top ceil(log2 P) bits of e_id.

GetEdgeIndex()

vtkIdType vtkDistributedGraphHelper::GetEdgeIndex

(

vtkIdType

e_id

)

const

Returns local index of edge with ID e_id, by masking off top ceil(log2 P) bits of e_id.

MakeDistributedId()

vtkIdType vtkDistributedGraphHelper::MakeDistributedId	(	int	owner,
		vtkIdType	local
	)

Builds a distributed ID consisting of the given owner and the local ID.

SetVertexPedigreeIdDistribution()

void vtkDistributedGraphHelper::SetVertexPedigreeIdDistribution	(	vtkVertexPedigreeIdDistribution	Func,
		void *	userData
	)

Set the pedigreeId -> processor distribution function that determines how vertices are distributed when they are associated with pedigree ID, which must be a unique label such as a URL or IP address.

If a nullptr function pointer is provided, the default hashed distribution will be used.

GetVertexOwnerByPedigreeId()

vtkIdType vtkDistributedGraphHelper::GetVertexOwnerByPedigreeId

(

const vtkVariant &

pedigreeId

)

Determine which processor owns the vertex with the given pedigree ID.

Synchronize()

virtual void vtkDistributedGraphHelper::Synchronize ( )

pure virtual

Synchronizes all of the processors involved in this distributed graph, so that all processors have a consistent view of the distributed graph for the computation that follows.

This routine should be invoked after adding new edges into the distributed graph, so that other processors will see those edges (or their corresponding back-edges).

Clone()

virtual vtkDistributedGraphHelper * vtkDistributedGraphHelper::Clone ( )

pure virtual

Clones the distributed graph helper, returning another distributed graph helper of the same kind that can be used in another vtkGraph.

DISTRIBUTEDVERTEXIDS()

static vtkInformationIntegerKey * vtkDistributedGraphHelper::DISTRIBUTEDVERTEXIDS ( )

static

Information Keys that distributed graphs can append to attribute arrays to flag them as containing distributed IDs.

These can be used to let routines that migrate vertices (either repartitioning or collecting graphs to single nodes) to also modify the ids contained in the attribute arrays to maintain consistency.

DISTRIBUTEDEDGEIDS()

static vtkInformationIntegerKey * vtkDistributedGraphHelper::DISTRIBUTEDEDGEIDS ( )

static

Information Keys that distributed graphs can append to attribute arrays to flag them as containing distributed IDs.

These can be used to let routines that migrate vertices (either repartitioning or collecting graphs to single nodes) to also modify the ids contained in the attribute arrays to maintain consistency.

AddVertexInternal() [1/2]

virtual void vtkDistributedGraphHelper::AddVertexInternal ( vtkVariantArray *  propertyArr, vtkIdType *  vertex  )

protectedpure virtual

Add a vertex, optionally with properties, to the distributed graph.

If vertex is non-nullptr, it will be set to the newly-added (or found) vertex. Note that if propertyArr is non-nullptr and the vertex data contains pedigree IDs, a vertex will only be added if there is no vertex with that pedigree ID.

AddVertexInternal() [2/2]

virtual void vtkDistributedGraphHelper::AddVertexInternal ( const vtkVariant &  pedigreeId, vtkIdType *  vertex  )

protectedpure virtual

Add a vertex with the given pedigreeId to the distributed graph.

If vertex is non-nullptr, it will receive the newly-created vertex.

AddEdgeInternal() [1/4]

virtual void vtkDistributedGraphHelper::AddEdgeInternal ( vtkIdType  u, vtkIdType  v, bool  directed, vtkVariantArray *  propertyArr, vtkEdgeType *  edge  )

protectedpure virtual

Add an edge (u, v) to the distributed graph.

The edge may be directed undirected. If edge is non-null, it will receive the newly-created edge. If propertyArr is non-null, it specifies the properties that will be attached to the newly-created edge.

AddEdgeInternal() [2/4]

virtual void vtkDistributedGraphHelper::AddEdgeInternal ( const vtkVariant &  uPedigreeId, vtkIdType  v, bool  directed, vtkVariantArray *  propertyArr, vtkEdgeType *  edge  )

protectedpure virtual

Adds an edge (u, v) and returns the new edge.

The graph edge may or may not be directed, depending on the given flag. If edge is non-null, it will receive the newly-created edge. uPedigreeId is the pedigree ID of vertex u, which will be added if no vertex by that pedigree ID exists. If propertyArr is non-null, it specifies the properties that will be attached to the newly-created edge.

AddEdgeInternal() [3/4]

virtual void vtkDistributedGraphHelper::AddEdgeInternal ( vtkIdType  u, const vtkVariant &  vPedigreeId, bool  directed, vtkVariantArray *  propertyArr, vtkEdgeType *  edge  )

protectedpure virtual

Adds an edge (u, v) and returns the new edge.

The graph edge may or may not be directed, depending on the given flag. If edge is non-null, it will receive the newly-created edge. vPedigreeId is the pedigree ID of vertex u, which will be added if no vertex with that pedigree ID exists. If propertyArr is non-null, it specifies the properties that will be attached to the newly-created edge.

AddEdgeInternal() [4/4]

virtual void vtkDistributedGraphHelper::AddEdgeInternal ( const vtkVariant &  uPedigreeId, const vtkVariant &  vPedigreeId, bool  directed, vtkVariantArray *  propertyArr, vtkEdgeType *  edge  )

protectedpure virtual

Adds an edge (u, v) and returns the new edge.

The graph edge may or may not be directed, depending on the given flag. If edge is non-null, it will receive the newly-created edge. uPedigreeId is the pedigree ID of vertex u and vPedigreeId is the pedigree ID of vertex u, each of which will be added if no vertex by that pedigree ID exists. If propertyArr is non-null, it specifies the properties that will be attached to the newly-created edge.

FindVertex()

virtual vtkIdType vtkDistributedGraphHelper::FindVertex ( const vtkVariant &  pedigreeId )

protectedpure virtual

Try to find the vertex with the given pedigree ID.

Returns the vertex ID if the vertex is found, or -1 if there is no vertex with that pedigree ID.

FindEdgeSourceAndTarget()

virtual void vtkDistributedGraphHelper::FindEdgeSourceAndTarget ( vtkIdType  id, vtkIdType *  source, vtkIdType *  target  )

protectedpure virtual

Determine the source and target of the edge with the given ID.

Used internally by vtkGraph::GetSourceVertex and vtkGraph::GetTargetVertex.

AttachToGraph()

virtual void vtkDistributedGraphHelper::AttachToGraph ( vtkGraph *  graph )

protectedvirtual

Attach this distributed graph helper to the given graph.

This will be called as part of vtkGraph::SetDistributedGraphHelper.

Friends And Related Symbol Documentation

vtkGraph

friend class vtkGraph

friend

Definition at line 256 of file vtkDistributedGraphHelper.h.

Member Data Documentation

Graph

vtkGraph* vtkDistributedGraphHelper::Graph

protected

The graph to which this distributed graph helper is already attached.

Definition at line 220 of file vtkDistributedGraphHelper.h.

VertexDistribution

vtkVertexPedigreeIdDistribution vtkDistributedGraphHelper::VertexDistribution

protected

The distribution function used to map a pedigree ID to a processor.

Definition at line 225 of file vtkDistributedGraphHelper.h.

VertexDistributionUserData

void* vtkDistributedGraphHelper::VertexDistributionUserData

protected

Extra, user-specified data to be passed into the distribution function.

Definition at line 230 of file vtkDistributedGraphHelper.h.

signBitMask

vtkIdType vtkDistributedGraphHelper::signBitMask

protected

Bit mask to speed up decoding graph info {owner,index}.

Definition at line 235 of file vtkDistributedGraphHelper.h.

highBitShiftMask

vtkIdType vtkDistributedGraphHelper::highBitShiftMask

protected

Bit mask to speed up decoding graph info {owner,index}.

Definition at line 240 of file vtkDistributedGraphHelper.h.

procBits

int vtkDistributedGraphHelper::procBits

protected

Number of bits required to represent # of processors (owner)

Definition at line 245 of file vtkDistributedGraphHelper.h.

indexBits

int vtkDistributedGraphHelper::indexBits

protected

Number of bits required to represent {vertex,edge} index.

Definition at line 250 of file vtkDistributedGraphHelper.h.

---

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

• Common/DataModel/vtkDistributedGraphHelper.h