1. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de1 J. Adamczewski, M. Al-Turany, D. Bertini, H.G.Essel, S.Linev CHEP 2004 Go4 v2.8 Analysis Design

2. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de2 Warm up Current analysis design Analysis control Advanced requirements Solution I Solution II Content

3. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de3 Screen shot

4. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de4 User event loop Events Histograms Graphs Go4 GUI (Qt) control browsers editors graphics User GUI Commands Objects ROOT files Analysis task GUI task Go4 tasks: GUI & analysis Event IO: DAQ Server Files User

5. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de5 Framework for many kinds of experiments (Atomic & Nuclear Physics) The analysis is written by the user (unlimited ROOT) Services and interfaces for analysis Batch mode (CINT or compiled, on/off-line) Interactive mode (on/off-line): A non blocking GUI controls and steers the analysis Analysis runs independently and can update graphics asynchronously ROOT object transport between analysis and GUI task Qt based GUI interfaces ROOT and Qt graphics User defined GUI supported (Qt designer) The Go4 framework

6. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de6 Warm up Current analysis design Analysis control Advanced requirements Solution I Solution II Content

7. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de7 Analysis steps (objects) TUserAnalysis TGo4Analysis Step Input Process Output Step Input Process Output Step Input Process Output TObjArray Factory1 Init. Factory2 Init. FactoryN Init. Steps definition and control FrameworkUser Code

8. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de8 input output process input output process input output process Analysis steps (object IO) coded! input = output Intermediate IO

9. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de9 Content Warm up Current analysis design Analysis control Advanced requirements Solution I Solution II

10. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de10 Configuration of the steps via GUI or macro (initialization, analysis stand by) Enable/disable Set I/O Macros Executed directly in analysis code (full access to framework) Launched from GUI, executed in analysis synchronized with event loop (running event loop) User parameter objects Generic editor for user objects Update function executed in analysis can be used for anything (running event loop) Conditions (running event loop) Editor can configure condition to return always TRUE or FALSE Checked in analysis code (counters) Interactive histogramming (running event loop) Create histograms and conditions on the fly Fill with any members of events (event by event or from memory tree) Analysis control

11. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de11 Content Warm up Current analysis design Analysis control Advanced requirements Solution I Solution II

12. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de12 Designed for linear flow of analysis, generation oriented Abstract Interfaces for IO, data structures, processing User defined factories for setting up the steps Fully controlled by framework So far Go4 analysis organization

13. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de13 Designed for linear flow of analysis, generation oriented Abstract Interfaces for IO, data structures, processing User defined factories for setting up the steps Fully controlled by framework New requirements Event stacks Hierarchy of steps Concurrent steps Control of multiple I/O per step Logical mesh setup control So far New requirements

14. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de14 Event stacks Asynchronous DAQ branches (events are subevents with time stamps) event building in analysis Decay measurements Mixing of events from different sources (simulation) input event output event input event output event process input event output event input event process event by event event stack

15. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de15 Framework User Code TMainTask Exec () TTask Exec () ExecuteTasks () TTask TTask1 Exec () TTask TTask22 Exec () TTask TTask11 Exec () TTask TTask2 Exec () TTask TTask21 Exec () TTask TTask211 Exec () TTask TTaskN Exec () TList Hierarchy: like ROOT TTask mechanism Enable/disable branches Fixed execution order

16. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de16 Concurrent analysis steps physics event analysis det 3 det 2 det 1 raw event unpack det1 det2 det3 built event det1 det2 det3 calibrated event daq Intermediate IO

17. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de17 Concurrent analysis steps physics event analysis det 3 det 2 det 1 raw event unpack det1 det2 det3 built event det1 det2 det3 calibrated event daq Intermediate IO

18. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de18 Multiple IO input event output event process event input event output event process who instantiates the input events from file? step 1 step 2 Files Trees Branches

19. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de19 Multiple IO and data generations input event output event process event input event output event process output event process output event input event output event step 1 step 3 step 2

20. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de20 Analysis meshes, not hierarchy Multiple files, trees, branches Execution order of steps evaluated at run time! Avoid back reference! TTask not suitable! Intermediate store/retrieve step Input: Output: step reference store

21. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de21 Analysis meshes, not hierarchy Multiple files, trees, branches Execution order of steps evaluated at run time! Avoid back reference! TTask not suitable! Intermediate store/retrieve step Input: Output: step retrieve

22. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de22 Content Warm up Current analysis design Analysis control Advanced requirements Solution I Solution II

23. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de23 Solution I: Use special steps Event object Provider “Pstep1“ Provider steps (input from file or execution step, no output) Execution steps (input from provider steps, optional output) Event object Provider “Pstep2“ Store event Execution “Estep1“ GetInputEvent(“Pstep1“) GetInputEvent(“Pstep2“) Provider “Pstep3“ Store event Execution “Estep2“ GetInputEvent(“Pstep3“) Is in fact output of step “Estep1“

24. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de24 Provider steps are used when an event may come from file or another step (can be configured by GUI or macros) Execution steps do not use their “own“ input events but the ones from provider steps (coded, but can proofed) Solution I: Go4 v2.8 (v3.0) To be done: Provider steps may get objects from branches of same tree (file) Eventually the file open/close handling must be moved to framework Not easy to do: Providing event stacks of different depth No hierarchy, but execution order of steps could be evaluated by framework Logical analysis mesh with multiple inputs can be provided with little efford!

25. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de25 Content Warm up Current analysis design Analysis control Advanced requirements Solution I Solution II

26. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de26 New Go4EventManager Control of multiple IO for each step Control of object exchange in analysis mesh Event stacks Execution order of Go4Tasks at run time (initialization) New Go4Task Combines steps and TTask (optional hierarchical structure) Register to Event Manager Subscribe for input objects Register output objects Factory interface between application and framework Extend analysis configuration (GUI and macros) Solution II: New components, design

27. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de27 Event Manager Multiple files, trees, branches Go4Task Event manager input event output event object references

28. 27.9.04H.G.Essel: Go4 - http://go4.gsi.de28 J. Adamczewski, M. Al-Turany, D. Bertini, H.G.Essel, S.Linev The end