ITK Layout Performances

This Twiki documents the steps to run simulation,digitisation and reconstruction for different Pixel geometries with xml files (Fast Geomodel).

The simulation/digitisation+reconstruction is documented for Athena version >= 19/20

Processing with Tag geometry description

The production of the samples (EVNT -> AOD) with Athena 20 (simulation with Athena 19 ) is based on Susumu's Twiki . Such production is done to have reference samples ( LoI, LoI VF) with GeoModel description.

The procedure is validated for interactive jobs or pathena jobs (except with pileup which requires high memory). Examples of scripts (interactive or Grid submission) can be found in CERN afs ~jezequel/public/tracker_simulation/repository/tag_geom . For the moment, the tracking xAOD are produced in the next step

On 29h July 2015, the used Athena versions are 19.2.3.5 for simulation and 20.1.5.6 for digit + reco (or Mig5 for tests)

Prepare compilation and running for new tool

Sabine Elles provides a tar file to process simul and digit+reco :

• with xml geometry description file
• to include the Alpine layout.

On 16th June, Sabine's tar (always located in ~selles/public/xmlFiles) are in TrackerMigrationRel20_pathena3_GeoComp_Simu19.tar.gz and TrackerMigrationRel20_pathena3_DigiRecoMig5.tar.gz

The compilation is done with sh ./start_scratch.sh and sh ./compil_scratch.sh.

DO NOT FORGET:

• In the simul and digit+reco area, copy
  • InDetIdDictFiles (material description) (if missing, the typical error message : ERROR SiDetectorElement: Unable to set IdentifierHash ) : Just make a link to /afs/cern.ch/user/j/jezequel/public/tracker_simul/repository/generic/InDetIdDictFiles

Sample production with xml geometry description

The geometry can be described with an xml file. It gives the possibility toeasily describe new layouts (link to information necessary). It uses the same athena version as in the previous items

In the job option, one has to choose the correct InDetSLHC_Example/postInclude.SLHC_Setup_*.py

The steps are :

• source start_athena.sh
• source compile_scratch.sh (takes few minutes)
• Edit the LoI job option to replace InDetSLHC_Example/postInclude.SLHC_Setup.py to InDetSLHC_Example/postInclude.SLHC_Setup_LoI.py
• submit the simulation jobs and the next steps

The layouts are :

• LoI, LoI_VF
• Alpine

The digi and reco step are still done with the geometry tag (should be changed in the future to make it work for Alpine/SLIM).

The next steps (digi and reco) are done in a similar way as in previous step.

Production of performance plots

Making own plots

Follow the xAOD tutorial.

On 16th June, the used release to read xAOD is 2.3.11 .

Using central CP tool

The production of central performance plots uses an ATLAS central tools based on CP performance plots. It is describes in Nicks Twiki.

It reads AOD from release 20 and produces performance plots.

On 7th June, a missing point is to increase the eta range for studies with Very-Forward tracking (recipee to be tested).

The current code is in jezequel/public/tracker_simul/repository/ValMon and first plots in ~jezequel/public/tracker_simul/ValMon/plots

-- StephaneJezequel - 2015-10-12