ITK
5.2.0
Insight Toolkit
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#include <itkDomainThreader.h>
Classes | |
struct | ThreadStruct |
Public Types | |
using | AssociateType = TAssociate |
using | ConstPointer = SmartPointer< const Self > |
using | DomainPartitionerType = TDomainPartitioner |
using | DomainType = typename DomainPartitionerType::DomainType |
using | Pointer = SmartPointer< Self > |
using | Self = DomainThreader |
using | Superclass = Object |
Public Types inherited from itk::Object | |
using | ConstPointer = SmartPointer< const Self > |
using | Pointer = SmartPointer< Self > |
using | Self = Object |
using | Superclass = LightObject |
Public Types inherited from itk::LightObject | |
using | ConstPointer = SmartPointer< const Self > |
using | Pointer = SmartPointer< Self > |
using | Self = LightObject |
Additional Inherited Members | |
Static Public Member Functions inherited from itk::Object | |
static bool | GetGlobalWarningDisplay () |
static void | GlobalWarningDisplayOff () |
static void | GlobalWarningDisplayOn () |
static Pointer | New () |
static void | SetGlobalWarningDisplay (bool val) |
Static Public Member Functions inherited from itk::LightObject | |
static void | BreakOnError () |
static Pointer | New () |
Protected Member Functions inherited from itk::Object | |
Object () | |
~Object () override | |
void | PrintSelf (std::ostream &os, Indent indent) const override |
bool | PrintObservers (std::ostream &os, Indent indent) const |
virtual void | SetTimeStamp (const TimeStamp &timeStamp) |
Protected Member Functions inherited from itk::LightObject | |
virtual LightObject::Pointer | InternalClone () const |
LightObject () | |
virtual void | PrintHeader (std::ostream &os, Indent indent) const |
virtual void | PrintTrailer (std::ostream &os, Indent indent) const |
virtual | ~LightObject () |
Protected Attributes inherited from itk::LightObject | |
std::atomic< int > | m_ReferenceCount |
Multi-threaded processing on a domain by processing sub-domains per thread.
This class uses a ThreadedDomainPartitioner as a helper to split the domain into subdomains. Each subdomain is then processed in the ThreadedExecution
method.
The data on which to perform the processing is assumed to be members of an associating class. Therefore, to perform a threaded operation in a class, the associating class usually will declare derived versions of this class as a friend class.
To use this class, at a minimum,
If a 'threaded method' is desired to perform some data processing in a class, a derived version of this class can be defined to perform the threaded operation. Since a threaded operation is relatively complex compared to a simple serial operation, a class instead of a simple method is required. Inside this class, the method to partition the data is handled, the logic for deciding the number of work units is determined, and operations surrounding the threading are encapsulated into the class with the DetermineNumberOfWorkUnitsToUse
, BeforeThreadedExecution
, ThreadedExecution
, and AfterThreadedExecution
virtual methods.
TDomainPartitioner | A class that inherits from ThreadedDomainPartitioner. |
TAssociate | The associated class that uses a derived version of this class as a "threaded method". The associated class usually declares derived version of this class as nested classes so there is easy access to its protected and private members in ThreadedExecution. |
Definition at line 66 of file itkDomainThreader.h.
using itk::DomainThreader< TDomainPartitioner, TAssociate >::AssociateType = TAssociate |
Definition at line 80 of file itkDomainThreader.h.
using itk::DomainThreader< TDomainPartitioner, TAssociate >::ConstPointer = SmartPointer<const Self> |
Definition at line 75 of file itkDomainThreader.h.
using itk::DomainThreader< TDomainPartitioner, TAssociate >::DomainPartitionerType = TDomainPartitioner |
Definition at line 77 of file itkDomainThreader.h.
using itk::DomainThreader< TDomainPartitioner, TAssociate >::DomainType = typename DomainPartitionerType::DomainType |
Definition at line 78 of file itkDomainThreader.h.
using itk::DomainThreader< TDomainPartitioner, TAssociate >::Pointer = SmartPointer<Self> |
Definition at line 74 of file itkDomainThreader.h.
using itk::DomainThreader< TDomainPartitioner, TAssociate >::Self = DomainThreader |
Standard class type aliases.
Definition at line 72 of file itkDomainThreader.h.
using itk::DomainThreader< TDomainPartitioner, TAssociate >::Superclass = Object |
Definition at line 73 of file itkDomainThreader.h.
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protected |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
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overrideprotecteddefault |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
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inlineprotectedvirtual |
When Execute
in run, this method is run single-threaded after ThreadedExecution
. Optionally collect results, etc. E.g. calculate the global minimum from the minimums calculated per thread.
Reimplemented in itk::LevelSetEvolutionComputeIterationThreader< WhitakerSparseLevelSetImage< TOutput, VDimension >, ThreadedIteratorRangePartitioner< WhitakerSparseLevelSetImage< TOutput, VDimension >::LayerConstIterator >, TLevelSetEvolution >, itk::ImageToImageMetricv4GetValueAndDerivativeThreaderBase< TDomainPartitioner, TImageToImageMetricv4 >, itk::ImageToImageMetricv4GetValueAndDerivativeThreaderBase< ThreadedImageRegionPartitioner< TImageToImageMetricv4::VirtualImageDimension >, TImageToImageMetricv4 >, itk::ImageToImageMetricv4GetValueAndDerivativeThreaderBase< ThreadedIndexedContainerPartitioner, TImageToImageMetricv4 >, itk::LevelSetEvolutionUpdateLevelSetsThreader< LevelSetDenseImage< TImage >, ThreadedImageRegionPartitioner< TImage::ImageDimension >, TLevelSetEvolution >, itk::JointHistogramMutualInformationComputeJointPDFThreaderBase< TDomainPartitioner, TJointHistogramMetric >, itk::JointHistogramMutualInformationComputeJointPDFThreaderBase< ThreadedImageRegionPartitioner< TJointHistogramMetric::VirtualImageDimension >, TJointHistogramMetric >, and itk::JointHistogramMutualInformationComputeJointPDFThreaderBase< ThreadedIndexedContainerPartitioner, TJointHistogramMetric >.
Definition at line 158 of file itkDomainThreader.h.
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inlineprotectedvirtual |
When Execute
is run, this method is run singled-threaded before ThreadedExecution
. Inside this method optional operations such as creating instance variables needed per thread may be performed.
Reimplemented in itk::LevelSetEvolutionComputeIterationThreader< WhitakerSparseLevelSetImage< TOutput, VDimension >, ThreadedIteratorRangePartitioner< WhitakerSparseLevelSetImage< TOutput, VDimension >::LayerConstIterator >, TLevelSetEvolution >, itk::ImageToImageMetricv4GetValueAndDerivativeThreaderBase< TDomainPartitioner, TImageToImageMetricv4 >, itk::ImageToImageMetricv4GetValueAndDerivativeThreaderBase< ThreadedImageRegionPartitioner< TImageToImageMetricv4::VirtualImageDimension >, TImageToImageMetricv4 >, itk::ImageToImageMetricv4GetValueAndDerivativeThreaderBase< ThreadedIndexedContainerPartitioner, TImageToImageMetricv4 >, itk::LevelSetEvolutionUpdateLevelSetsThreader< LevelSetDenseImage< TImage >, ThreadedImageRegionPartitioner< TImage::ImageDimension >, TLevelSetEvolution >, itk::JointHistogramMutualInformationComputeJointPDFThreaderBase< TDomainPartitioner, TJointHistogramMetric >, itk::JointHistogramMutualInformationComputeJointPDFThreaderBase< ThreadedImageRegionPartitioner< TJointHistogramMetric::VirtualImageDimension >, TJointHistogramMetric >, and itk::JointHistogramMutualInformationComputeJointPDFThreaderBase< ThreadedIndexedContainerPartitioner, TJointHistogramMetric >.
Definition at line 140 of file itkDomainThreader.h.
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protectedvirtual |
This is evaluated at the beginning of Execute() so that it can be used in BeforeThreadedExecution().
void itk::DomainThreader< TDomainPartitioner, TAssociate >::Execute | ( | AssociateType * | enclosingClass, |
const DomainType & | completeDomain | ||
) |
Run the multi-threaded operation on the given domain.
The domain is first partitioned by the ThreadedDomainPartitioner, then the virtual methods BeforeThreadedExecution
, ThreadedExecution
, and AfterThreadedExecution
. are run, in order.
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virtual |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
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inline |
Convenience methods to set/get the maximum number of threads to use.
Definition at line 119 of file itkDomainThreader.h.
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virtual |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
MultiThreaderBase* itk::DomainThreader< TDomainPartitioner, TAssociate >::GetMultiThreader | ( | ) | const |
Return the multithreader used by this class.
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virtual |
Run-time type information (and related methods).
Reimplemented from itk::Object.
Reimplemented in itk::LevelSetEvolutionComputeIterationThreader< WhitakerSparseLevelSetImage< TOutput, VDimension >, ThreadedIteratorRangePartitioner< WhitakerSparseLevelSetImage< TOutput, VDimension >::LayerConstIterator >, TLevelSetEvolution >, itk::ImageToImageMetricv4GetValueAndDerivativeThreader< ThreadedIndexedContainerPartitioner, TImageToImageMetricv4 >, itk::LevelSetEvolutionComputeIterationThreader< LevelSetDenseImage< TImage >, ThreadedIteratorRangePartitioner< TLevelSetEvolution::DomainMapImageFilterType::DomainMapType::const_iterator >, TLevelSetEvolution >, itk::JointHistogramMutualInformationComputeJointPDFThreader< ThreadedIndexedContainerPartitioner, TJointHistogramMetric >, itk::ImageToImageMetricv4GetValueAndDerivativeThreader< ThreadedImageRegionPartitioner< TImageToImageMetricv4::VirtualImageDimension >, TImageToImageMetricv4 >, itk::JointHistogramMutualInformationComputeJointPDFThreader< ThreadedImageRegionPartitioner< TJointHistogramMetric::VirtualImageDimension >, TJointHistogramMetric >, itk::LevelSetEvolutionComputeIterationThreader< LevelSetDenseImage< TImage >, ThreadedImageRegionPartitioner< TImage::ImageDimension >, TLevelSetEvolution >, itk::LevelSetEvolutionUpdateLevelSetsThreader< LevelSetDenseImage< TImage >, ThreadedImageRegionPartitioner< TImage::ImageDimension >, TLevelSetEvolution >, itk::ImageToImageMetricv4GetValueAndDerivativeThreaderBase< TDomainPartitioner, TImageToImageMetricv4 >, itk::ImageToImageMetricv4GetValueAndDerivativeThreaderBase< ThreadedImageRegionPartitioner< TImageToImageMetricv4::VirtualImageDimension >, TImageToImageMetricv4 >, itk::ImageToImageMetricv4GetValueAndDerivativeThreaderBase< ThreadedIndexedContainerPartitioner, TImageToImageMetricv4 >, itk::GradientDescentOptimizerBasev4ModifyGradientByLearningRateThreaderTemplate< TInternalComputationValueType >, itk::GradientDescentOptimizerBasev4ModifyGradientByScalesThreaderTemplate< TInternalComputationValueType >, itk::QuasiNewtonOptimizerv4EstimateNewtonStepThreaderTemplate< TInternalComputationValueType >, itk::JointHistogramMutualInformationComputeJointPDFThreaderBase< TDomainPartitioner, TJointHistogramMetric >, itk::JointHistogramMutualInformationComputeJointPDFThreaderBase< ThreadedImageRegionPartitioner< TJointHistogramMetric::VirtualImageDimension >, TJointHistogramMetric >, and itk::JointHistogramMutualInformationComputeJointPDFThreaderBase< ThreadedIndexedContainerPartitioner, TJointHistogramMetric >.
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virtual |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
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virtual |
Accessor for number of work units that were actually used in the last ThreadedExecution.
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virtual |
Set/Get the DomainPartitioner.
void itk::DomainThreader< TDomainPartitioner, TAssociate >::SetMaximumNumberOfThreads | ( | const ThreadIdType | threads | ) |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
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protectedvirtual |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
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virtual |
Convenience methods to set/get the desired number of work units to use.
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private |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
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protectedpure virtual |
Do the threaded operation, somewhat like ThreadedGenerateData
in an ImageSource.
subdomain | The subdomain to operate on. |
threadId | The identifier for the current thread. Data to perform the operation on can be accessed by dereferencing this->m_Associate, which has direct access to private and protected members the enclosing class. |
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staticprotected |
Static function used as a "callback" by the MultiThreaderBase. The threading library will call this routine for each thread, which will delegate the control to the ThreadFunctor.
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protected |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
Definition at line 169 of file itkDomainThreader.h.
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private |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
Definition at line 188 of file itkDomainThreader.h.
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private |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
Definition at line 187 of file itkDomainThreader.h.
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private |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
Definition at line 189 of file itkDomainThreader.h.
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private |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
Definition at line 186 of file itkDomainThreader.h.
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private |
Store the actual number of work units used, which may be less than the number allocated by the threader if the object does not split well into that number. This value is determined at the beginning of Execute()
.
Definition at line 185 of file itkDomainThreader.h.