1. New calibration strategy – follow-up from the production review
ALICE Offline
07/02/2011

2. GSI proposal
Slide courtesy of Silvia Masciocchi

3. Assumptions Weekly AliRoot updates (Rev + AN tag)
All PWGx + AOD filtering trains run in synch
Weekly OCDB updates (in addition to Pass0)
n=4 calibration passes until ready for Pass2
period length = 4 weeks
Reconstructed sample = 10% of full sample
If period + calibration passes not sufficient, the shema can be extended

4. Calibration passes – one period
CPass #1
CPass #2
End of period
Ready for Pass #2
CPass #3
Cpass #4 (full 10% cycle)
CPass #5 (full 10% cycle)
CPass #6 (full 10% cycle)
CPass #7 (full 10% cycle) 1 2 3 4 5 6 7
Week #

5. Repartition of Cpass #x
PWG2
Analysis
train
AOD train
+ tender
PWG3
Analysis
train
Pass0
reco
Pass0
Calib train +
OCDB update
Cpass #x
reco
PWG4
Analysis
train
PWG1
QA train
Muon
AOD train
In total:
2 reco passes
2 calib train passes
6 PWG+AOD trains
Ready
Cpass #x
Calib train +
OCDB update
Not automatic
TBD

6. Summary of period pass Calibration (post Cpass #x) to be discussed
Total data volume – 55% of RAW
Calibration (post Cpass #x) to be discussed
What will be updated here?
What is the required ouptut of CPass #x to allow for calibration
Which detectors can join
AOD and PWG#2, 3, 4 trains must run at the same time
Strict discipline in the train code