1. Prompt Calibration Loop 11 February 2011

2. Overview Prompt calibration loop in SCT –Provides ATLAS with conditions data used for the bulk reconstruction at Tier0 (& reprocessing) Noisy strip map (only as of today) –Provides SCT with key variables to monitor the performance Noisy strip/chip, dead strip/chip, noise occupancy, efficiency, bytestream errors etc. Offline jobs to create the outputs run automatically on TMS (Task Management System). –DQ shifter monitors the job status. All outputs are manually uploaded to COOL database –DQ shifter uploads the outputs to COOL. 2

3. Bulk Reconstruction at Tier0 “Bulk reconstruction” at Tier0 –Tier0 runs reconstruction on RAW data for each run. –The outputs are distributed to Tier1s for physics analysis. Run-calibration-reconstruction cycle –A run finishes. –A fixed 36 hours is given to subsystems, as offline calibration period. – Reconstruction starts. 3 time run 1 reconstruction 1 calibration 1 (36 hours) reconstruction 2 calibration 2 (36 hours) run 2run 3 Prompt calibration loop has to be completed within 36 hours

4. Prompt Calibration Loop For a given run, prompt calibration loop has to be completed within 36 hours. 3 steps –Processing : Offline calibration jobs run automatically. –Outputs : Appear on a dedicated Web page. –Uploads : Uploads to COOL database on the Web page. 4

5. Processing 5 TypeComments Noisy stripUsed for bulk reconstruction Dead stripPerformance monitoring Dead chipPerformance monitoring Noise occupancyPerformance monitoring Raw occupancyPerformance monitoring EfficiencyPerformance monitoring Bytestream errorPerformance monitoring For a given run, 7 types of jobs are defined.

6. Shifter’s Work Go to SCT-dedicated upload Web page (See page 7). https://pc-sct-www01.cern.ch/24hLoop/index.php –Log in. –Check a list of runs in recent 2 days on ATLAS RunQuery, which are in prompt calibration loop period (36 hour time- window for each run). –Upload the outputs if available. –Contact experts for any questions/problems. Go to Task Lister Web page (See page 8). https://atlas-tz-monitoring-caf.cern.ch/taskLister.html –Monitor jobs for a list of runs are defined/running/done. –Contact experts for any questions/problems. 6

7. Upload Page 7 https://pc-sct-www01.cern.ch/24hLoop/index.php Upload test flag (NoisyStrip only), checkbox, log Last run uploaded for noisy strip Check cron job Log in Send message to experts Tabs to select types (NoisyStrip is selected in this page) Click for uploads Link to ATLAS RunQuery Link to documentation etc Select tag (default is selected)

8. 8 Job Monitoring on Task Lister https://atlas-tz-monitoring-caf.cern.ch/taskLister.html Tasks done Tasks running Tasks defined Type sctns : NoisyStrip, 2 jobs (tag c0, c00) sctdc : DeadChip, 1 job sctds : DeadStrip, 1 job sctno : NoiseOccupany, 2 job (tag c0, c00) sctro : RawOccupancy, 1 job scteff : Efficiency, 1 job sctbse : BSErrors, 1 job Select “sctcalib” NOTE : don’t care “#Events=0”