A partitioning strategy based on load balancing geometric bounding boxes as cuts of a data set.
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virtual vtkTypeBool | IsA (const char *type) |
| Return 1 if this class is the same type of (or a subclass of) the named class.
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vtkNativePartitioningStrategy * | NewInstance () const |
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void | PrintSelf (std::ostream &os, vtkIndent indent) override |
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std::vector< PartitionInformation > | ComputePartition (vtkPartitionedDataSetCollection *) override |
| Implementation of parent API.
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std::vector< vtkBoundingBox > | ExpandCuts (const std::vector< vtkBoundingBox > &cuts, const vtkBoundingBox &bounds) |
| Helper function to expand a collection of bounding boxes to include the bounds specified.
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virtual std::vector< vtkBoundingBox > | GenerateCuts (vtkDataObject *data) |
| This method is called to generate the partitions for the input dataset.
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virtual void | SetUseExplicitCuts (bool) |
| Specify whether to compute the load balancing automatically or use explicitly provided cuts.
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virtual bool | GetUseExplicitCuts () |
| Specify whether to compute the load balancing automatically or use explicitly provided cuts.
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virtual void | UseExplicitCutsOn () |
| Specify whether to compute the load balancing automatically or use explicitly provided cuts.
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virtual void | UseExplicitCutsOff () |
| Specify whether to compute the load balancing automatically or use explicitly provided cuts.
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void | SetExplicitCuts (const std::vector< vtkBoundingBox > &boxes) |
| Specify the cuts to use when UseExplicitCuts is true.
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const std::vector< vtkBoundingBox > & | GetExplicitCuts () const |
| Specify the cuts to use when UseExplicitCuts is true.
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void | RemoveAllExplicitCuts () |
| Specify the cuts to use when UseExplicitCuts is true.
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void | AddExplicitCut (const vtkBoundingBox &bbox) |
| Specify the cuts to use when UseExplicitCuts is true.
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void | AddExplicitCut (const double bbox[6]) |
| Specify the cuts to use when UseExplicitCuts is true.
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int | GetNumberOfExplicitCuts () const |
| Specify the cuts to use when UseExplicitCuts is true.
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const vtkBoundingBox & | GetExplicitCut (int index) const |
| Specify the cuts to use when UseExplicitCuts is true.
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virtual void | SetExpandExplicitCuts (bool) |
| When using explicit cuts, it possible that the bounding box defined by all the cuts is smaller than the input's bounds.
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virtual bool | GetExpandExplicitCuts () |
| When using explicit cuts, it possible that the bounding box defined by all the cuts is smaller than the input's bounds.
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virtual void | ExpandExplicitCutsOn () |
| When using explicit cuts, it possible that the bounding box defined by all the cuts is smaller than the input's bounds.
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virtual void | ExpandExplicitCutsOff () |
| When using explicit cuts, it possible that the bounding box defined by all the cuts is smaller than the input's bounds.
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const std::vector< vtkBoundingBox > & | GetCuts () const |
| Returns the cuts used by the most recent ComputePartition call.
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virtual void | SetLoadBalanceAcrossAllBlocks (bool) |
| When UseExplicitCuts is false, and input is a vtkPartitionedDataSetCollection , set this to true to generate cuts for load balancing using all the datasets in the vtkPartitionedDataSetCollection.
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virtual bool | GetLoadBalanceAcrossAllBlocks () |
| When UseExplicitCuts is false, and input is a vtkPartitionedDataSetCollection , set this to true to generate cuts for load balancing using all the datasets in the vtkPartitionedDataSetCollection.
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virtual void | LoadBalanceAcrossAllBlocksOn () |
| When UseExplicitCuts is false, and input is a vtkPartitionedDataSetCollection , set this to true to generate cuts for load balancing using all the datasets in the vtkPartitionedDataSetCollection.
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virtual void | LoadBalanceAcrossAllBlocksOff () |
| When UseExplicitCuts is false, and input is a vtkPartitionedDataSetCollection , set this to true to generate cuts for load balancing using all the datasets in the vtkPartitionedDataSetCollection.
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virtual vtkTypeBool | IsA (const char *type) |
| Return 1 if this class is the same type of (or a subclass of) the named class.
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vtkPartitioningStrategy * | NewInstance () const |
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void | PrintSelf (std::ostream &os, vtkIndent indent) override |
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virtual std::vector< PartitionInformation > | ComputePartition (vtkPartitionedDataSetCollection *)=0 |
| Main method for subclasses to implement in order to define their partitioning method (should be called on all ranks due to distributed communication)
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void | SetController (vtkMultiProcessController *) |
| Get/Set the controller to use.
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virtual vtkMultiProcessController * | GetController () |
| Get/Set the controller to use.
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virtual vtkIdType | GetNumberOfPartitions () |
| Get/Set number of partitions (if < 0 use number of MPI ranks)
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virtual void | SetNumberOfPartitions (vtkIdType) |
| Get/Set number of partitions (if < 0 use number of MPI ranks)
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| vtkBaseTypeMacro (vtkObject, vtkObjectBase) |
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virtual void | DebugOn () |
| Turn debugging output on.
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virtual void | DebugOff () |
| Turn debugging output off.
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bool | GetDebug () |
| Get the value of the debug flag.
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void | SetDebug (bool debugFlag) |
| Set the value of the debug flag.
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virtual void | Modified () |
| Update the modification time for this object.
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virtual vtkMTimeType | GetMTime () |
| Return this object's modified time.
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void | PrintSelf (ostream &os, vtkIndent indent) override |
| Methods invoked by print to print information about the object including superclasses.
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void | RemoveObserver (unsigned long tag) |
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void | RemoveObservers (unsigned long event) |
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void | RemoveObservers (const char *event) |
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void | RemoveAllObservers () |
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vtkTypeBool | HasObserver (unsigned long event) |
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vtkTypeBool | HasObserver (const char *event) |
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vtkTypeBool | InvokeEvent (unsigned long event) |
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vtkTypeBool | InvokeEvent (const char *event) |
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std::string | GetObjectDescription () const override |
| The object description printed in messages and PrintSelf output.
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unsigned long | AddObserver (unsigned long event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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unsigned long | AddObserver (const char *event, vtkCommand *, float priority=0.0f) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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vtkCommand * | GetCommand (unsigned long tag) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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void | RemoveObserver (vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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void | RemoveObservers (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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void | RemoveObservers (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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vtkTypeBool | HasObserver (unsigned long event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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vtkTypeBool | HasObserver (const char *event, vtkCommand *) |
| Allow people to add/remove/invoke observers (callbacks) to any VTK object.
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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.
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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.
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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.
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vtkTypeBool | InvokeEvent (unsigned long event, void *callData) |
| This method invokes an event and return whether the event was aborted or not.
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vtkTypeBool | InvokeEvent (const char *event, void *callData) |
| This method invokes an event and return whether the event was aborted or not.
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virtual void | SetObjectName (const std::string &objectName) |
| Set/get the name of this object for reporting purposes.
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virtual std::string | GetObjectName () const |
| Set/get the name of this object for reporting purposes.
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const char * | GetClassName () const |
| Return the class name as a string.
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virtual std::string | GetObjectDescription () const |
| The object description printed in messages and PrintSelf output.
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virtual vtkTypeBool | IsA (const char *name) |
| Return 1 if this class is the same type of (or a subclass of) the named class.
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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).
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virtual void | Delete () |
| Delete a VTK object.
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virtual void | FastDelete () |
| Delete a reference to this object.
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void | InitializeObjectBase () |
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void | Print (ostream &os) |
| Print an object to an ostream.
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void | Register (vtkObjectBase *o) |
| Increase the reference count (mark as used by another object).
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virtual void | UnRegister (vtkObjectBase *o) |
| Decrease the reference count (release by another object).
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int | GetReferenceCount () |
| Return the current reference count of this object.
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void | SetReferenceCount (int) |
| Sets the reference count.
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bool | GetIsInMemkind () const |
| A local state flag that remembers whether this object lives in the normal or extended memory space.
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virtual void | PrintHeader (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses.
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virtual void | PrintTrailer (ostream &os, vtkIndent indent) |
| Methods invoked by print to print information about the object including superclasses.
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virtual bool | UsesGarbageCollector () const |
| Indicate whether the class uses vtkGarbageCollector or not.
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static vtkNativePartitioningStrategy * | New () |
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static vtkTypeBool | IsTypeOf (const char *type) |
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static vtkNativePartitioningStrategy * | SafeDownCast (vtkObjectBase *o) |
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static vtkTypeBool | IsTypeOf (const char *type) |
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static vtkPartitioningStrategy * | SafeDownCast (vtkObjectBase *o) |
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static vtkObject * | New () |
| Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
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static void | BreakOnError () |
| This method is called when vtkErrorMacro executes.
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static void | SetGlobalWarningDisplay (vtkTypeBool val) |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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static void | GlobalWarningDisplayOn () |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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static void | GlobalWarningDisplayOff () |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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static vtkTypeBool | GetGlobalWarningDisplay () |
| This is a global flag that controls whether any debug, warning or error messages are displayed.
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static vtkTypeBool | IsTypeOf (const char *name) |
| Return 1 if this class type is the same type of (or a subclass of) the named class.
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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).
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static vtkObjectBase * | New () |
| Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
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static void | SetMemkindDirectory (const char *directoryname) |
| The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
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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.
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A partitioning strategy based on load balancing geometric bounding boxes as cuts of a data set.
This strategy is the traditional strategy used in the vtkRedistributeDataSetFilter which has been refactored into this class. It is based on cuting up the data set into equally balanced (in terms of cell number) bounding boxes that then get distributed to all ranks.
The load balancing attempts to balance the number of cells per target partition approximately. It uses a DIY-based kdtree implementation that balances the cell centers among requested number of partitions. Current implementation only supports power-of-2 target partition. If a non-power of two value is specified for NumberOfPartitions
, then the load balancing simply uses the power-of-two greater than the requested value. The bounding boxes for the kdtree leaf nodes are then used to redistribute the data.
Alternatively a collection of bounding boxes may be provided that can be used to distribute the data instead of computing them (see UseExplicitCuts
and SetExplicitCuts
). When explicit cuts are specified, it is possible use those cuts strictly or to expand boxes on the edge to fit the domain of the input dataset. This can be controlled by ExpandExplicitCutsForInputDomain
.
Definition at line 36 of file vtkNativePartitioningStrategy.h.