Package ptolemy.domains.pthales.kernel

Class PthalesScheduler

java.lang.Object

ptolemy.kernel.util.NamedObj

ptolemy.kernel.util.Attribute

ptolemy.actor.sched.Scheduler

ptolemy.domains.sdf.kernel.BaseSDFScheduler

ptolemy.domains.sdf.kernel.SDFScheduler

ptolemy.domains.pthales.kernel.PthalesScheduler

All Implemented Interfaces:

java.lang.Cloneable, Changeable, Debuggable, DebugListener, Derivable, ModelErrorHandler, MoMLExportable, Moveable, Nameable, ValueListener

public class PthalesScheduler
extends SDFScheduler

The scheduler for the Pthales model of computation.

Since:

Ptolemy II 10.0

Version:

$Id$

Author:

Rémi Barrère

Pt.AcceptedRating:

Red (cxh)

Pt.ProposedRating:

Red (cxh)

Nested Class Summary

Nested classes/interfaces inherited from class ptolemy.kernel.util.NamedObj

NamedObj.ContainedObjectsIterator

Field Summary

Fields inherited from class ptolemy.domains.sdf.kernel.SDFScheduler

_externalRates, _firingVector, _rateVariables, constrainBufferSizes

Fields inherited from class ptolemy.domains.sdf.kernel.BaseSDFScheduler

VERBOSE

Fields inherited from class ptolemy.actor.sched.Scheduler

_DEFAULT_SCHEDULER_NAME

Fields inherited from class ptolemy.kernel.util.NamedObj

_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKS

Constructor Summary

Constructors

Constructor	Description
PthalesScheduler(Director container, java.lang.String name)	Construct a scheduler in the given container with the given name.

Method Summary

Modifier and Type	Method	Description
protected Schedule	_getSchedule()	Return the scheduling sequence.
void	declareRateDependency()	Declare the rate dependency on any external ports of the model.

Methods inherited from class ptolemy.domains.sdf.kernel.SDFScheduler

_checkDynamicRateVariables, _computeMaximumFirings, _countUnfulfilledInputs, _getFiringCount, _simulateExternalInputs, _simulateInputConsumption, _solveBalanceEquations, _vectorizeFirings, clone, getExternalRates, getFiringCount, valueChanged

Methods inherited from class ptolemy.domains.sdf.kernel.BaseSDFScheduler

_declareDependency, _saveBufferSizes, _saveContainerRates, _saveFiringCounts

Methods inherited from class ptolemy.actor.sched.Scheduler

getSchedule, isValid, setContainer, setValid

Methods inherited from class ptolemy.kernel.util.Attribute

_checkContainer, _getContainedObject, _propagateExistence, getContainer, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, setName, updateContent

Methods inherited from class ptolemy.kernel.util.NamedObj

_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _containedDecorators, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _description, _executeChangeRequests, _exportMoMLContents, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _propagateValue, _removeAttribute, _splitName, _stripNumericSuffix, _validateSettables, addChangeListener, addDebugListener, addHierarchyListener, attributeChanged, attributeDeleted, attributeList, attributeList, attributeTypeChanged, clone, containedObjectsIterator, decorators, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getElementName, getFullName, getModelErrorHandler, getName, getName, getPrototypeList, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, notifyOfNameChange, propagateExistence, propagateValue, propagateValues, removeAttribute, removeChangeListener, removeDebugListener, removeHierarchyListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, uniqueName, validateSettables, workspace

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

PthalesScheduler

public PthalesScheduler(Director container,
                        java.lang.String name)
                 throws IllegalActionException,
                        NameDuplicationException

Construct a scheduler in the given container with the given name.

Parameters:

container - The container.

name - The name of this attribute.

Throws:

IllegalActionException - If the attribute is not of an acceptable class for the container, or if the name contains a period.

NameDuplicationException - If the name coincides with an attribute already in the container.

Method Detail

declareRateDependency

public void declareRateDependency()
                           throws IllegalActionException

Declare the rate dependency on any external ports of the model. SDF directors should invoke this method once during preinitialize.

Overrides:

declareRateDependency in class SDFScheduler

Throws:

IllegalActionException

_getSchedule

protected Schedule _getSchedule()
                         throws IllegalActionException,
                                NotSchedulableException

Description copied from class: SDFScheduler

Return the scheduling sequence. An exception will be thrown if the graph is not schedulable. This occurs in the following circumstances:

• The graph is not a connected graph.
• No integer solution exists for the balance equations.
• The graph contains cycles without delays (deadlock).
• Multiple output ports are connected to the same broadcast relation. (equivalent to a non-deterministic merge)
• The vectorizationFactor parameter of the director does not contain a positive integer.

Overrides:

_getSchedule in class SDFScheduler

Returns:

A schedule of the deeply contained opaque entities in the firing order.

Throws:

IllegalActionException

NotSchedulableException

See Also:

CompositeEntity.deepEntityList()