mokka, main guidelines and future
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Mokka, main guidelines and future. P. Mora de Freitas Laboratoire Leprince-Ringuet Ecole polytechnique - France Linear collider Workshop 2004, Paris. The first main guideline:. Let’s compare detector designs in a common framework ! It means, to simulate different detector models with : - PowerPoint PPT PresentationTRANSCRIPT
Mokka, main guidelines andfuture
P. Mora de Freitas Laboratoire Leprince-RinguetEcole polytechnique - France
Linear collider Workshop 2004, Paris
The first main guideline:
Let’s compare detector designs in a common framework !
• It means, to simulate different detector models with :The same physicsThe same simulation framework (Geant4)The same input data filesThe same output data format (to be able to apply
almost the same reconstruction and analyze programs)
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
The second main guideline:
Keep it simple, stand alone as possible and available for all !
• It means, to just rely on the Geant4 framework
functionalities and standard building tools (gmake)
To write out just ASCII filesTo provide an open wide access via the
Mokka WEB page
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
The third main guideline:
Keep trace !• It means,
Tagged releases (almost monthly)Release notes for each releaseJust one reference geometry database, indeed local
copies can be useful while developing new detector models
Output data refers to a known detector model in the reference geometry database
Run log file (detector model, geant4 and Mokka release tag ids, line command parameters, etc)
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
Mokka first architecture and Mokka first architecture and relationshipsrelationships
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
The geometry databaseThe geometry database
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
The geometry databaseThe geometry database
Model Ingredients Sub-detectors
A detector model sample: “D08”
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
Impact of the gas in HCALElectrons Pions
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
Physics validation: Calice
Ecal Prototype
Hcal Prototype(for the moment just a Tesla Hcal module build as a
1m3 cube )
Y
XBeam
What we learned I:What we learned I:Geometry have to be sharedGeometry have to be shared
Generator
Detailed simulation
Reconstruction
Analysis
Need to share the same geometry !!!
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
C.G.A: the Common Geometry Access API (F77, C++,C and
Java)
Simulation (Mokka)
Reconstruction(user code)
Analysis(user code)
Geometry drivers
Run Time
CGA APIGeometry Database
Relies on Geant4 geometry layer Implements some reconstruction utilities.
(By G. Musat)
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
What we learned II:What we learned II:Data format have to be sharedData format have to be shared
Generator
Detailed simulation
Reconstruction
Analysis
Need a common High level data
format
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
Motivation
Generator
geometry
AnalysisRecon-
structionSimulation
LCIO Persistency Framework
Java, C++, FortranGeant3, Geant4
Java, C++, FortranJava, C++, Fortran
(Slide by Tony Johnson)
JAS3 + LCIO
• JAS3 Plugin exists for viewing and analyzing LCIO files– Allows to directly open
and browse any LCIO
– Works with any LCIO file • no requirement for prior
knowledge of what is being read.
– Recently updated to support LCIO 1.0
• (in fact 0.8 or later)
(Slide by Tony Johnson)
What we learned III:What we learned III:New users ask for new New users ask for new
functionalities and use cases !functionalities and use cases !
• Big thanks to Frank Gaede (DESY) for a set of new user facilities for Mokka:steering filesinit commandsenvironment variables Plugin interface for Geant4 user actions,
mainly for “on line” analyzes
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
But what we really learned:But what we really learned:We have to work together !We have to work together !
• Big improvement since the LCIO interface
• The LCWS04 Mokka release includes very good contributions also fromJeremy McCormick (NICADD)Frank Gaede (DESY)
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
Future
• We have to improve working together:by an informal developers committee and its
organization around the CVS repository management, code standards, Geant4-LC users interface, etc.
to bring adequate level of detector descriptions to this common simulation tool.
Job for detector specialists Job for detector specialists
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
Mokka’s kernel framework
Mokka Kernel
Geant4
Developer
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
Who is who for the next model improvements in Mokka?
• Ecal:– W/Si calorimeter and its prototype:
detailed model by Ecole polytechnique– Other options: …
• Hcal:– Digital and its prototype:
• RPC: generic model by Ecole polytechnique, detailed model by …
• GEM: detailed model by Nicadd (Jeremy McCormick)
– Analog (scintillator, etc): generic model by Ecole polytechnique, detailed model by …
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris
Who is who for the next model improvements in Mokka?
• Inner tracking devices:– Generic model by Ecole polytechnique (directly
translated from Brahms), detailed model by …– The SET: LPNHE – Paris + …
• Forward detectors (masks, LAT, …): – Generic model by Ecole polytechnique (directly
translated from Brahms), detailed model by …
• Muon chamber: …• Beam line: …
P. Mora de Freitas – L.L.R. Ecole polytechnique, France – LCWS04 Paris