opt Class Reference

#include <opt.h>

Inheritance diagram for opt:

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Public Member Functions
	opt ()
	Basic Constructor.
void	initSync ()
	Initialize the synchronization strategy type of the poser.
virtual void	Step ()
	Perform a single forward execution step.
POSE_TimeType	SafeTime ()
	Compute safe time for object.
void	AddSpawnedEvent (int AnObjIdx, eventID evID, POSE_TimeType ts)
	Add spawned event to current event's spawned event list.
void	CancelSpawn (Event *e)
	Send cancellation messages to all of event e's spawned events.
Data Fields
int	cpRate
	Checkpoint rate.
unsigned int	specEventCount
unsigned int	eventCount
unsigned int	stepCount
unsigned int	avgEventsPerStep
unsigned int	rbCount
unsigned int	jumpCount
POSE_TimeType	avgRBoffset
POSE_TimeType	avgTimeLeash
POSE_TimeType	avgJump
unsigned short int	rbFlag
Protected Member Functions
virtual void	Rollback ()
	Rollback to predetermined RBevent.
virtual void	RecoverState (Event *recoveryPoint)
	Recover checkpointed state prior to ev.
virtual void	CancelEvents ()
	Cancel events in cancellation list that have arrived.
virtual void	CancelUnexecutedEvents ()
virtual void	UndoEvent (Event *e)
	Undo a single event, cancelling its spawned events.
Protected Attributes
int	idle
	Idle measure.

Detailed Description

Definition at line 6 of file opt.h.

Constructor & Destructor Documentation

opt::opt ( ) [inline]

Basic Constructor.

Definition at line 40 of file opt.h.

References avgRBoffset, cpRate, pose_config, POSE_TimeMax, POSE_Config::store_rate, and strat::STRAT_T.

Member Function Documentation

void opt::Rollback ( ) [protected, virtual]

Rollback to predetermined RBevent.

Undo a single event, cancelling its spawned events

Cancel events in cancellation list that have arrived

Recover checkpointed state prior to ev

Reimplemented from strat.

Definition at line 41 of file opt.C.

References avgRBoffset, eventQueue::back(), sim::basicStats, CancelEvents(), sim::cancels, CancelSpawn(), CancelUnexecutedEvents(), CmiWallTimer(), Event::commitBfr, Event::commitBfrLen, Event::commitErr, Event::cpData, strat::currentEvent, eventQueue::currentPtr, PVT::decEventCount(), eventQueue::DeleteEvent(), EqHeap::DeleteEvent(), Event::done, strat::eq, eventQueue::eqh, eventCount, eventQueue::eventCount, CancelNode::evID, Event::evID, eventQueue::FindLargest(), Event::fnIdx, free(), eventQueue::front(), PVT::getGVT(), CancelList::GetItem(), CancelList::IsEmpty(), strat::localPVT, strat::localStats, rep::localTimePool, eventQueue::mem_usage, Event::msg, Event::next, strat::parent, pose_config, POSE_UnsetTS, Event::prev, rbCount, eventQueue::RBevent, rbFlag, RecoverState(), CancelList::RemoveItem(), sim::ResolveFn(), localStat::Rollback(), Event::serialCPdata, Event::serialCPdataSz, eventQueue::SetCurrentPtr(), eventQueue::ShiftEvent(), POSE_Config::stats, localStat::SwitchTimer(), strat::targetEvent, CancelNode::timestamp, Event::timestamp, TimePool::tmp_free(), POSE_Config::trace, traceUserBracketEvent(), localStat::Undo(), UndoEvent(), sim::UNDOs, strat::userObj, and rep::usesAntimethods().

Referenced by spec::Step(), opt3::Step(), opt2::Step(), Step(), adapt5::Step(), adapt4::Step(), adapt3::Step(), adapt2::Step(), and adapt::Step().

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virtual void opt::RecoverState ( Event * recoveryPoint ) [protected, virtual]

Recover checkpointed state prior to ev.

Searches backward from recoveryPoint without undoing events or cancelling their spawn, until a checkpoint is found. Then restores the state from this found checkpoint, and uses pseudo-re-execution to return back to recoveryPoint. This means that events are re-executed to reconstruct the state, but any events they would have spawned are not respawned, since they were never cancelled.

Referenced by Rollback().

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virtual void opt::CancelEvents ( ) [protected, virtual]

Cancel events in cancellation list that have arrived.

This will go through all the cancellations and remove whatever has arrived already. For events that have already been executed, a rollback is performed. No forward execution happens until all the cancellations have been examined.

Reimplemented from strat.

Referenced by Rollback(), spec::Step(), opt3::Step(), opt2::Step(), Step(), adapt5::Step(), adapt4::Step(), adapt3::Step(), adapt2::Step(), and adapt::Step().

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virtual void opt::CancelUnexecutedEvents ( ) [protected, virtual]

Referenced by Rollback(), spec::Step(), opt3::Step(), opt2::Step(), Step(), adapt5::Step(), adapt4::Step(), adapt3::Step(), adapt2::Step(), and adapt::Step().

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virtual void opt::UndoEvent ( Event * e ) [protected, virtual]

Undo a single event, cancelling its spawned events.

Referenced by Rollback().

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void opt::initSync ( ) [inline, virtual]

Initialize the synchronization strategy type of the poser.

Reimplemented from strat.

Definition at line 49 of file opt.h.

References strat::parent, and sim::sync.

void opt::Step ( ) [virtual]

Perform a single forward execution step.

Basic Optimistic Synchronization Strategy.

Prior to the forward execution, cancellation and rollback are done if necessary. Derived strategies typically just reimplement this method

Perform a single forward execution step

Reimplemented from strat.

Reimplemented in adapt, adapt2, adapt3, adapt4, adapt5, opt2, opt3, and spec.

Definition at line 5 of file opt.C.

References CancelEvents(), sim::cancels, CancelUnexecutedEvents(), strat::currentEvent, eventQueue::currentPtr, Event::done, strat::eq, eventCount, Event::fnIdx, PVT::getGVT(), idle, CancelList::IsEmpty(), strat::localPVT, strat::localStats, localStat::Loop(), eventQueue::mem_usage, Event::msg, strat::parent, pose_config, POSE_Objects, POSE_TimeMax, POSE_UnsetTS, eventQueue::RBevent, sim::ResolveFn(), Rollback(), prioMsg::setPriority(), eventQueue::ShiftEvent(), specEventCount, POSE_Config::stats, sim::Status(), stepCount, and Event::timestamp.

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POSE_TimeType opt::SafeTime ( ) [inline, virtual]

Compute safe time for object.

Safe time is the earliest timestamp that this object can generate given its current state (assuming no stragglers, cancellations or events are subsequently received

Reimplemented from strat.

Definition at line 58 of file opt.h.

References sim::cancels, eventQueue::currentPtr, strat::eq, CancelList::getEarliest(), PVT::getGVT(), strat::localPVT, rep::OVT(), strat::parent, POSE_UnsetTS, Event::timestamp, and strat::userObj.