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Run1 reprocessing and Calibration activities

Run1 reprocessing and Calibration activities. Kai Schweda , GSI and Chiara Zampolli , U. Bologna and INFN 25-June-2014. Run1 Reprocessing. LHC11a Cpass0, 135 runs with beam, 101 good runs Of these, 80 runs with either TPC, TRD, TOF, T0, SDD, SPD

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Run1 reprocessing and Calibration activities

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  1. Run1 reprocessing and Calibration activities Kai Schweda, GSI and Chiara Zampolli, U. Bologna and INFN25-June-2014

  2. Run1 Reprocessing • LHC11a • Cpass0, 135 runs with beam, 101 good runs • Of these, 80 runs with either TPC, TRD, TOF, T0, SDD, SPD • 68 ok, 11 failed in EV, 1 in TOF (no tracks selected) • 12 failed runs are 146105 146148 146208 146369 146374 146376 146390 146393 146394 146400 146401 146402 • 146105: failed in TOF (statistics), no crash, under investigation • 146148, 146208: in EV due to TPC, TMinuitfitting problem (FitSlicesY), needs fix in several places, then benchmarking; work in progress. • Remaining 9 runs failed, WITHOUT magnetic field due to TPC, histograms empty, division by zero  protection put in place • With new release of Alirootshould then be fine, to be checked

  3. Run2 Offline Calibration • When CPass1 finished, manual intervention necessary to recover failed runs (due to statistics – e.g. TRD);time consuming, depends on availability of people • Add a process after standard CPass0/1 that “fills the holes” automatically • Allow CPass0/1 jobs to wait before being closed till the previous runs are finished; when one is done, copy automatically OCDB entry • Could still introduce delay, but only for runs suffering from low statistics • Lightweight Production Manager (LPM) can handle complex dependencies of runs (e.g. good, bad, bad, good, bad, bad ) • Discussions ongoing with detectors and offline, define specific use cases and make proposal

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