ITTF Program Flow

1
ITTF Program Flow

• Mike Miller
• Yale University

2
Outline

• ITTF Objects
• Dependencies
• StEvent, StMcEvent, StAssociationMaker
• StarClassLibrary
• namespace std
• Libraries
• Sti (portable, bulk of classes)
• StiMaker (Plug into Maker Scheme)
• StiEvalutor (ROOT dependent)
• StiGui (ROOT dependent)
• General Flow chart
• Specific Flow chart
• StiMakerInit()
• StiMakerClear()
• StiMakerMake()
• Current Chain Management

3
General Flowchart
4
Specific Flowchart (I)

• StiMakerInit()
• Access singleton instance of StiIOBroker
• Dynamic run-time parameters
• Instantiate template ltclass Tgt StiFactoryltTgt
  objects
• Transient objects
• StiHit, Sti(Drawable)KalmanTrack,
  Sti(Drawable)Detector, StiCompositeTreeNode,
  StiKalmanTrackNode
• Instantiate singleton StiGeometryTransform
• Instantiate StiHitContainer
• Instantiate StiHitFiller
• Instantiate StiTrackContainer
• If GUI instantiate StiDisplayManager
• Instantiate StiDetectorContainer
• Build geometry model from DB
• Instantiate StiCompositeSeedFinder
• Instantiate StiEvaluator
• Instantiate StiTrackMerger
• Instantiate StiKalmanTrackFinder
• All calls to operator new() here

5
Specific Flowchart (II)

• StiMakerclear()
• Clear all containers
• All STL containers
• clear() does not necessarily free memory
• We use default STL allocators
• Clear all factories
• Does not necessarily free memory
• Reset GUI display
• No calls to operators new or delete

6
Specific Flowchart (III)

• StiMakerMake()
• StiHitFillerfillHits(StiHitContainer,
  StEvent)
• Convert to ITTF coordinate system.
• 5 cpu sec/central event (interactive)
• Can be removed w/ minor modifications to StHit
• StiKalmanTrackFinderfindTracks()
• while (mSeedFinder-gthasMore())
• StiTrack t mSeedFinder-gtnext()
• findTrack(t)
• if (mTrackFilter-gtaccept(t))
• mTrackStore-gtpush_back(t)
• StiTrackMergermergeSplitTracks()
• StiEvaluatorevaluateForEvent()
• StiStEventFillerfillEvent(StEvent)
• No calls to operators new and delete

7
Chain Management

• Currently done in stand alone macro
• doEvents -gt RunStiMaker
• We do not currently run bfc.