G4analysis

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G4/analysis

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What is analysis ?

• Histogram, Tuple, Fitter, Function, Plotter.

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What is analysis ?
Storage
Languages
Net
Analysis
Data
Vis
Histo, Fitter,
GUI

• Analysis conjunction of everything !!!!

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Huge turnover of facilities
C, java
Objectivity, ?
Net
Analysis
Data
OpenGL, Inventor, j3D
Histo, Fitter,
Gtk, Qt, awt, SWING
How to face ?
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The TUniverse ?
TC
TIO
TNet
TData
TAnalysis
TVis
TGeant
TGUI
THisto, TFitter,
TUniverse -gt leave the real world !
(Zf77-Universe whilst the world migrates toward
OO,)
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What else ?

• Have architectures able to evolve and that
  permits to share the work.
• Abstract interfaces are one part of the solution
  (others are standards XML, IDL, OpenGL, etc)

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Abstract interfaces
IHistogram int dimensions() 0 int
entries() 0 .
Plotter(IHistogram)
A plotter in a dll does not depend of a concrete
implementation of histogram -gt modularity !
Sharing the work assumes an agreement over
IHistogram.
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AIDA

• Abstract interfaces exist in JAS, Lizard,
  OpenScientist, Gaudi,
• AIDA the set of agreed one ! (?)
• AIDA IHistogram1D, 2D, Factory.
• Take care of what you buy ! Agreed interfaces or
  interfaces of a specific analysis environment ?
• No agreement -gt cant share the work.

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AIDA difficulties

• Difficulties
• Agreement take times because analysis things
  had never been really formalised !
• Burden of historical design mistakes of well
  established first generation of analysis tools.
• The TUniverse do not want (obviously) to discuss !

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Exa, IHistogram

• IHistogram1D IHistogram
  
  
• void fill(double,double) 0
  
  
  
  
• Must it define only the user interface to
  histograms ?
• Must it be the interface designed by architects
  to reach interoperabilities of implementations ?
• Must it be the interface of the histogram
  embedded in a framework (then having store, vis,
  methods) ?

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Geant4 and analysis

• Did not take party for such or such analysis
  environment.
• Does Geant4 collaboration have to take party for
  such or such set of abstract interfaces ?
• If answer is yes, it should be for a set of
  collaborative agreed ones !

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Agreed interfaces permit to do something
JAS
OpenScientist
G4Kernel
G4AnalysisManager
AAIDA
Lizard
?

• G4AnalysisManager gateway toward analysis
  systems.
• (G4VisManager hub for graphics systems)
• First draft design get out from Naruto workshop.

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MyAnalysisManager v0

• MyAnalysisManager G4AnalysisManager
  IHistogram1D fEnteringEnergy
• MyAnalysisManager(const G4String aSystem)
  RegisterAnalysisSystem(new G4JasSystem)
  RegisterAnalysisSystem(new
  G4OpenScientistSystem) IHistogramFac
  tory hFac GetHistogramFactory(aSystem) fEnt
  eringEnergy hFac-gtcreateHistogram1D(En
  tering energy,100,0,0.002)
• void MyAnalysisManagerStep(G4Step aStep)
• double energy
• fEnteringEnergy-gtfill(energy)
• void EndOfRun(G4Run aRun)
  Store()

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Usage

• void main()
• G4AnalysisManager am new MyAnalysisManager
  (JAS)
• runManager-gtSetUserAction(new
  MyStepping(am))
• runManager-gtSetUserAction(new MyRun(am))
  
• MyStepping G4AnalysisManager fAM
  MyStepping(G4AnalysisManager aAM)
  fAM(aAM) void UserSteppingAction(G4Step
  aStep) fAM-gtStep(aStep)
• Analysis concentrated in ONE CLASS.

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Source/analysis

• Source/analysis/management G4AnalysisManager
• lt source/analysis/ltsystemsgt gt ?
• No dependencies of the kernel toward analysis !
• G4AnalysisManager IS NOT AN ANALYSIS SYSTEM.

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v1 ? After (non?)discussion

• Suppress Registration of systems ? Use dynamic
  loading of implementations by hooking factories
  ?
• G4AnalysisManager IAnalysisManager
• IAnalysisManager methods ?

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XrayTel

• What are you buying at this workshop ?
  Agreed interfaces or interfaces of a specific
  analysis environment ?

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XrayTel G4AnalysisManager v0

• XrayTel already shakes G4AM v0
• The Stepping action analysis does not rely only
  on the G4Step received in argument.
• The analysis uses tuples ITuple (and then
  IStorage) not yet in the set of agreed interfaces
  !

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Then

• Does Geant4 collaboration have to take party for
  a set of abstract interfaces ?
• If answer is yes, it should be for a set of
  collaborative agreed ones !