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Hall-D Software Status

Hall-D Software Status. September 10, 2004 D. Lawrence JLab. History of Code Development. History of Code Development. History of Code Development. Weekly Software Meetings. Meetings almost every week since May 5th(~17 meetings)

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Hall-D Software Status

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  1. Hall-D Software Status September 10, 2004 D. Lawrence JLab

  2. History of Code Development

  3. History of Code Development

  4. History of Code Development

  5. Weekly Software Meetings • Meetings almost every week since May 5th(~17 meetings) • Discussions of policy, philosophy and design specifics of Hall-D software • Anyone is welcome to connect to the meeting via VRVS or telephone. Meeting announcements sent out to halld-computing@jlab.org

  6. Software Topics Discussed • Data Model (HDDM) • PID/Gas Cherenkov detector GEANT studies • GlueX Portal • Analysis Framework • Version Control: CVS vs. BitKeeper • Make system • Tagger simulation • Code documentation

  7. Version Control BitKeeper will be tested first on hdds package after detector review See Hall-D note “Why BitKeeper” GlueX-doc-183-v1

  8. GateKeeper Model

  9. Redefining Forum Topics Software Related Forums • HDFast • HDGeant • HDDS Geometry Package • Standards and Porting Issues • HDDM Data Model Package • PWA

  10. Use Doxygen to generate code documentation Example

  11. Use ROOT for 3-vector and 4-vector classes • TVector3, TLorentzVector are based (partly) on CLHEP classes • Some methods: • Boost(bx,by,bz) • RotateX(radians) • M(),M2() • SetPhi(),SetTheta()

  12. In-memory data structures defined in XML schemas <xs:element name="fdcPoint"> <xs:complexType> <xs:attribute name="dEdx” type="hddm:float” use="required"/> <xs:attribute name="dradius” type="hddm:float" use="required"/> <xs:attribute name="track” type="hddm:int” use="required"/> <xs:attribute name="x” type="hddm:float" use="required"/> <xs:attribute name="y” type="hddm:float" use="required"/> <xs:attribute name="z” type="hddm:float” use="required"/> </xs:complexType> </xs:element>

  13. So Where Are We?

  14. HDFast • Provides parametric simulation of entire Hall-D detector • Provides full tracking results with smearing based on individual detector resolutions • Numerous tools for looking at data • Runs on RH Enterprise Linux

  15. HDFast

  16. HDGeant • Fully detailed physics simulation using Geant3 • Useful for background studies • Provides data which can be used to develop reconstruction packages

  17. HDGeant

  18. HDDM : Data Model • Data structures defined using XML schemas • C code generated from schemas • Platform independent I/O routines generated from schemas

  19. DANA : Hall-D Analysis Framework

  20. CDC “First Guess”

  21. CDC “First Guess”

  22. CDC “First Guess”

  23. Looking Ahead • Adopt coding guidelines, establish gatekeepers, identify validation tests • Continue with Analysis Framework • Reconstruction (tracking, cluster finding, ...) • Calibration/Parameters Database • GEANT4

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