Collaboration diagram for SDFstateSpaceListScheduler::TransitionSystem:

Classes
class	State
Public Types
typedef list< State >	States
typedef States::iterator	StatesIter
Public Member Functions
	TransitionSystem (BindingAwareSDFG *bg)
	~TransitionSystem ()
TDtime	execSDFgraph ()
Private Member Functions
bool	storeState (State &s, StatesIter &pos)
void	clearStoredStates ()
TDtime	computeThroughput (const StatesIter cycleIter)
bool	actorReadyToFire (SDFactor *a)
void	startActorFiring (TimedSDFactor *a)
bool	actorReadyToEnd (SDFactor *a)
void	endActorFiring (SDFactor *a)
SDFtime	clockStep ()
void	initOutputActor ()
void	initStaticOrderSchedules ()
Private Attributes
BindingAwareSDFG *	bindingAwareSDFG
SDFactor *	outputActor
TCnt	outputActorRepCnt
State	currentState
State	previousState
States	storedStates
vector< SDFactors >	actorReadyList
vector< bool >	procIdle

Member Typedef Documentation

typedef list<State> SDFstateSpaceListScheduler::TransitionSystem::States

typedef States::iterator SDFstateSpaceListScheduler::TransitionSystem::StatesIter

Constructor & Destructor Documentation

SDFstateSpaceListScheduler::TransitionSystem::TransitionSystem ( BindingAwareSDFG * bg ) [inline]

References bindingAwareSDFG, initOutputActor(), and initStaticOrderSchedules().

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SDFstateSpaceListScheduler::TransitionSystem::~TransitionSystem ( ) [inline]

Member Function Documentation

bool SDFstateSpaceListScheduler::TransitionSystem::actorReadyToEnd ( SDFactor * a ) [private]

actorReadyToEnd () The function returns true when the actor is ready to end its firing. Else the function returns false.

References SDFstateSpaceListScheduler::TransitionSystem::State::actClk, currentState, and SDFcomponent::getId().

Referenced by execSDFgraph().

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bool SDFstateSpaceListScheduler::TransitionSystem::actorReadyToFire ( SDFactor * a ) [private]

actorReadyToFire () The function returns true when the actor is ready to fire in state s. Else it returns false.

References actorReadyList, bindingAwareSDFG, c, CH_TOKENS, BindingAwareSDFG::getBindingOfActorToTile(), SDFport::getChannel(), SDFcomponent::getId(), SDFport::getRate(), SDFport::getType(), SDFactor::portsBegin(), SDFactor::portsEnd(), and procIdle.

Referenced by execSDFgraph().

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void SDFstateSpaceListScheduler::TransitionSystem::clearStoredStates ( ) [inline, private]

References storedStates.

Referenced by execSDFgraph().

SDFtime SDFstateSpaceListScheduler::TransitionSystem::clockStep ( ) [private]

clockStep () The function progresses time till the first end of firing transition becomes enabled. The time step is returned. In case of deadlock, the time step is equal to UINT_MAX.

References a, SDFstateSpaceListScheduler::TransitionSystem::State::actClk, bindingAwareSDFG, currentState, BindingAwareSDFG::getTDMAsizeOnTile(), SDFstateSpaceListScheduler::TransitionSystem::State::glbClk, SDFgraph::nrActors(), BindingAwareSDFG::nrTilesInPlatformGraph(), and SDFstateSpaceListScheduler::TransitionSystem::State::tdmaPos.

Referenced by execSDFgraph().

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TDtime SDFstateSpaceListScheduler::TransitionSystem::computeThroughput ( const StatesIter cycleIter ) [private]

computeThroughput () The function calculates the throughput of the states on the cycle. Its value is equal to the average number of firings of an actor per time unit.

References SDFstateSpaceListScheduler::TransitionSystem::State::glbClk, and storedStates.

Referenced by execSDFgraph().

void SDFstateSpaceListScheduler::TransitionSystem::endActorFiring ( SDFactor * a ) [private]

endActorFiring () Produce tokens on all output channels and remove the actor firing from the list of active firings.

References SDFstateSpaceListScheduler::TransitionSystem::State::actClk, bindingAwareSDFG, c, currentState, BindingAwareSDFG::getBindingOfActorToTile(), SDFport::getChannel(), SDFcomponent::getId(), SDFport::getRate(), SDFport::getType(), SDFactor::portsBegin(), SDFactor::portsEnd(), procIdle, and PRODUCE.

Referenced by execSDFgraph().

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TDtime SDFstateSpaceListScheduler::TransitionSystem::execSDFgraph ( )

execSDFgraph() Execute the SDF graph till a deadlock is found or a recurrent state. The throughput is returned.

References a, actorReadyList, actorReadyToEnd(), actorReadyToFire(), SDFgraph::actorsBegin(), SDFgraph::actorsEnd(), bindingAwareSDFG, c, SDFstateSpaceListScheduler::TransitionSystem::State::ch, CH, SDFgraph::channelsBegin(), SDFgraph::channelsEnd(), SDFstateSpaceListScheduler::TransitionSystem::State::clear(), clearStoredStates(), clockStep(), computeThroughput(), currentState, endActorFiring(), BindingAwareSDFG::getBindingOfActorToTile(), SDFport::getChannel(), SDFcomponent::getId(), SDFchannel::getInitialTokens(), SDFport::getRate(), SDFport::getType(), SDFstateSpaceListScheduler::TransitionSystem::State::glbClk, SDFstateSpaceListScheduler::TransitionSystem::State::init(), SDFgraph::nrActors(), SDFgraph::nrChannels(), BindingAwareSDFG::nrTilesInPlatformGraph(), outputActor, outputActorRepCnt, SDFactor::portsBegin(), SDFactor::portsEnd(), previousState, procIdle, SOS, SOS_POS, startActorFiring(), storeState(), and TDMA_POS.

Referenced by SDFstateSpaceListScheduler::schedule().

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void SDFstateSpaceListScheduler::TransitionSystem::initOutputActor ( ) [private]

initOutputActor () The function selects an actor to be used as output actor in the state transition system.

References a, SDFgraph::actorsBegin(), SDFgraph::actorsEnd(), bindingAwareSDFG, FSMSADF::computeRepetitionVector(), SDFcomponent::getId(), outputActor, and outputActorRepCnt.

Referenced by TransitionSystem().

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void SDFstateSpaceListScheduler::TransitionSystem::initStaticOrderSchedules ( ) [private]

initStaticOrderSchedules () The function assigns empty static-order schedules to the processors.

References bindingAwareSDFG, BindingAwareSDFG::getScheduleOnTile(), and BindingAwareSDFG::nrTilesInPlatformGraph().

Referenced by TransitionSystem().

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void SDFstateSpaceListScheduler::TransitionSystem::startActorFiring ( TimedSDFactor * a ) [private]

startActorFiring () Start the actor firing. Remove tokens from all input channels and add the actor firing to the list of active actor firings and advance sequence position.

References SDFstateSpaceListScheduler::TransitionSystem::State::actClk, actorReadyList, StaticOrderSchedule::appendActor(), bindingAwareSDFG, c, CONSUME, currentState, BindingAwareSDFG::getBindingOfActorToTile(), SDFport::getChannel(), TimedSDFactor::getExecutionTime(), SDFcomponent::getId(), SDFport::getRate(), BindingAwareSDFG::getScheduleOnTile(), BindingAwareSDFG::getTDMAsizeOnTile(), BindingAwareSDFG::getTDMAsliceOnTile(), SDFport::getType(), SDFactor::portsBegin(), SDFactor::portsEnd(), procIdle, SOS_POS, and SDFstateSpaceListScheduler::TransitionSystem::State::tdmaPos.

Referenced by execSDFgraph().

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bool SDFstateSpaceListScheduler::TransitionSystem::storeState	(	State &	s,
		StatesIter &	pos
	)			`[private]`

storeState () The function stores the state s on whenever s is not already in the list of storedStates. When s is stored, the function returns true. When the state s is already in the list, the state s is not stored. The function returns false. The function always sets the pos variable to the position where the state s is in the list.

References storedStates.

Referenced by execSDFgraph().