# Presentation: 620697

## Software & Performances

- Releases:
- 12.0.7 caches for generator + Atlfast
- 12.0.95 kit built this week (after problem with sqlite database), validation to be done on kit
- 13.0.20 this week, then production cache next week
- Left over issues on calo side:
- Problem in Gap Tile cell in ESD compactification
- Jet -> uncalibrated topocluster navigation.
- Not everything for M4 is there
- 13.0.20-COS or freeze « good » nightly in 13.0.X
- New sampling fraction for EM scale available for 13.0.20 simulations (for LAr, not for Tiles)

## Simulation optimization task force:
Main mandate: define parameters for G4 simulation (version, physics list, range cuts)
Lar members: Tancredi Carli and GU
Now led by Adele Rimoldi, meeting at Glasgow
Discussion on
What to do for 13.0.20:  After discussion, our feedback was Geant4.8.3 and to be conservative stay with QGSP_EMV, 30 microns cut. In medium term, would like to use something like QGSP_BERT. Should revisit range cut. Use CSC-02-00-00 as geometry for validation
12.0.95 validation 
CTB simulation maintenance:
Calo propose that CTB simulation keeps working in main branch (13,14,etc..) (full chain for calorimeter, ID as « dead » material)
CTB simulation works in 13.0.10
A problem with calibration hits fixed in 13.0.20
Digitization broken (database issues).  Code fixed, a little late for 13.0.20, will be in 13.0.30 and 13.X
Note that in 13.0.20 we have G4 shower parameterization and Fast calo from Atlfast-2

- Main mandate: define parameters for G4 simulation (version, physics list, range cuts)
- Lar members: Tancredi Carli and GU
- Now led by Adele Rimoldi, meeting at Glasgow
- Discussion on
- What to do for 13.0.20:  After discussion, our feedback was Geant4.8.3 and to be conservative stay with QGSP_EMV, 30 microns cut. In medium term, would like to use something like QGSP_BERT. Should revisit range cut. Use CSC-02-00-00 as geometry for validation
- 12.0.95 validation
- CTB simulation maintenance:
- Calo propose that CTB simulation keeps working in main branch (13,14,etc..) (full chain for calorimeter, ID as « dead » material)
- CTB simulation works in 13.0.10
- A problem with calibration hits fixed in 13.0.20
- Digitization broken (database issues).  Code fixed, a little late for 13.0.20, will be in 13.0.30 and 13.X
*Note that in 13.0.20 we have G4 shower parameterization and Fast calo from Atlfast-2*

## Documentation
Review next week (23/07/07)
Good progress on twiki page certification (see also mail sent to Atlas-gen this week)
No comment received yet from reviewers
Calo CSC notes
Simulation: Some work needed by Joe before circulating first draft
Digitization: first draft circulated to “experts”, asked comments for end of next week.
Reconstruction: no news
Hadronic calibration: no news
Misalignment: Draft exists based on R.Zitoun’s analysis

- Review next week (23/07/07)
- Good progress on twiki page certification (see also mail sent to Atlas-gen this week)
- No comment received yet from reviewers
- Calo CSC notes
- Simulation: Some work needed by Joe before circulating first draft
- Digitization: first draft circulated to “experts”, asked comments for end of next week.
- Reconstruction: no news
- Hadronic calibration: no news
- Misalignment: Draft exists based on R.Zitoun’s analysis

## Jets in AOD
Jets in AOD are now ~biggest consumer of space (~65 kbytes out of xxx (no MC truth), target being 100 kbytes)
Generates some discussion at various meetings (AOD size seems to be the main contribution to computing cost)
Technical improvements to reduce the size ?
B-tag information
Number of collections ?
2 inputs (towers and uncalibrated topocluster) * 4 algorithms (2 cones and 2 Kt) , all with “H1” cell weights calibration
(no local hadron calibration yet)
+ several truth jet collections (*2 in case of pileup

- Jets in AOD are now ~biggest consumer of space (~65 kbytes out of xxx (no MC truth), target being 100 kbytes)
- Generates some discussion at various meetings (AOD size seems to be the main contribution to computing cost)
- Technical improvements to reduce the size ?
- B-tag information
- Number of collections ?
- 2 inputs (towers and uncalibrated topocluster) * 4 algorithms (2 cones and 2 Kt) , all with “H1” cell weights calibration
- (no local hadron calibration yet)
- + several truth jet collections (*2 in case of pileup