1. v5-01-Release & v5-02-Release Peter Hristov 20/02/2012

2. Changes: v5-01-Rev-22 #88827: Request for porting updates to TOF QA task into release. From rev. 54242 #90320: Request to port additional consistency checks in HLT TPC cluster decoding to v5-01-Release. From rev. 54055,54056 #90546: Filtering crashes when processing 2010 MC data. From rev. 54115 #90738 Request to port a fix to the release in AliZDCDigitizer. From rev. 54035 #90749 ESD Porting Request: GetTPCClusterInfo with additional switch. From rev. 54081 #90812 Porting overlap fixes to the release. From rev. 54092

3. Changes: v5-01-Rev-24 #24646 Re-produce AODs for cascades in pass2 PbPb 2010 (data & MC). Change in the configuration of vertexingHF from rev. 54533,54561 #90456: Request for modification of AliSimulation::ConvertRaw2Sdigits to select events for embedding. From rev. 54508 Technical fixes for Root 5-32. From rev. 51946 Technical fixes for Coverity 11390, 11389, 11388. From rev. 54588

4. v5-01-Rev-25 Technical fix from rev. 50674: Patch for recent TRefArray->TObjArray usage. Needed for the MC AOD filtering

5. Requests: v5-01-Release Adding protection against not initialized corrected ZDCTDC values from reconstruction. From rev. 54116 #91648 To be ported to the release: Fix needed for simulation of strange baryons in HIJING+Signals. From rev. 54646 #91695 Request to port AliQAThresholds.h to the Release. From rev. 54254

6. v5-02-Release Max 262 modifications to be ported (20/02) – some selection will be applied – this makes the new release suitable for AOD filtering with tenders Issues – Creation of AliMDC RPM with shared libraries. In progress – Creation of PAR files. In progress – Merging of raw tags.

7. Requests: v5-02-Release #91482 EMCAL: Port fix for new 2 SM 1/3 to release 5.02 #91465 Moved calibration object for ESD initialization #91421 Request to port PHOS trigger QA task to the Release #91322 Request to port bugfix in the AliPHOSReconstructor.cxx to the v5-02-Release #91253 Request to port bugfix in the AliAnalysisTaskPHOSPbPbQA.cxx to the v5-02-Release #91071 Running on AODs very slow on AAF

8. Other reports #91699 Request on more detailed ITS cluster information in the ESDs #91685 ITS QA porting request #91592 ZDC: new geometry to be implemented #91512 Trigger aliases for reconstruction #91510 Reconstruction able to deal with different triggers #91500 stored TPC only information in AOD049 - LHC10h

9. Old slides

10. v5-02-Release Branch v5-02-Release is created on 03/02 All tests OK (Root v5-30-00-patches) Tests with Root v5-32-00-patches: ongoing Several modifications to be ported Issues – Creation of AliMDC RPM with shared libraries – Creation of PAR files – Merging of raw tags

11. v5-01-Rev-23 #91061: AOD production very slow. From rev. 54460

12. Changes: v5-01-Rev-22 #90817 Please commit PHOS trigger part in the AliAnalysisTaskESDfilter.cxx. From rev. 54439 #90870 Request to port ZDC code to the release. From rev. 54133 #90916 Request: porting to v5-01-Release of the new ESD- >AOD filter. From rev. 52540,53853,54188,54210 #91005 Fix in AliCTPRawStream.cxx. From rev. 54234 #91126: Request to commit a patch for AMPT. From rev. 54424 #91159: Vertex generation in AliGenCorrHF. From rev. 54417 #91030: 2.76 TeV LHC11a pass3 dca problem. From rev. 54304

13. Other reports #90615 Problems in the material budget, eta<0.9 and 0.9<eta<1.4 #90944 adding alignment objects for the additional supermodules in the geometry setup 2012 #90939 Request to include (anti)hypertriton in ALICE GEANT3

14. Requests/Additional fixes #90625 Memory problem in AliTPCtrackerMI #90622 Logic flaw in AliTPCseed. From rev. 53997 #90616 Worrying message from TPC reconstruction. From rev. 54237 Changes in RAW (TClonesArray usage)

15. v5-02-Release Coverity: 129 defects to be fixed AliRoot tests: mostly OK Root v5-32-00-patches: needs tests PWGs transition: PWG0 and PWG2 still ongoing One library per subdirectory: not yet ready Savannah bug reports: many old bugs are still open

16. GDB on Grid Some potential problems detected and fixed (ITS, TPC, HLT) Some jobs fail in the beginning (event 0-10), ~4% – Not reproducible locally, even if we run many reconstruction jobs in parallel – Always caused by std_badalloc in different places Other jobs are killed by the system (memory) ~20%

17. Changes: v5-01-Rev-21 #90324: Exception in AliITStrackerMI::FollowProlongationTree. From rev. 53978 #90549: Request to port r53948 to the release (MUON small leak fix) #90658: For v5-01: Option to isolate heavy flavor part of a Pythia event. From rev. 53959 #84578: Request to extend AliGenBox for using Yrange. From rev. 53996 Optional RB/PX 24 shielding and scoring. From rev. 53955,53956

18. Changes: v5-01-Rev-21 #90461: Request to port a new feature for ZDC to the release. From rev. 53705 #90504: EVE muon_init.C update r53875 #25142: Commit and porting to Release of the new ESD->AOD filter. From rev. 54021 #90540: Port 53910,53911 and 53912 to the Release (Full MC Header in the AOD)

19. Changes: OCDB #90756 Request to port object in RAW OCDB (for realistic MUON simulations) #90736 Calibration of the TRD cosmics of May,Jun and August

20. Reconstruction of RAW (LHC11h) Back trace problem solved Clean-up of the PATH and LD_LIBRARY_PATH on the GRID Clean-up of the AliEn libraries Deterministic splitting of the failed jobs (in preparation) New tests in parallel with the Grid production

21. Changes: v5-01-Rev-20 #90319: Segmentation violation in AliPHOSRawFitterv1::~AliPHOSRawFitterv1. From rev. 53869 #90053: Request: Port bug fix TRD calibration code to release. From rev. 53734 #90292: Add line ConvertZDC() in AliAnalysisTaskESDfilter::ConvertESDtoAOD(). From rev. 53895 #90307: ZDC QA update. From rev. 52738,53081,53271 #90309: ZDC request to port code to the release. From rev. 52616 #90024: port changes in PYTHIA6 for pyquen production (pyquen- 1.5.F,CMakelib6.4.21.pkg updated), rev.53645 #90359: Request: fix cached values in ESD. From rev. 53900 #90013: Vertexing task crashing in trunk. From rev. 53793 Additional protection. From rev. 53904

22. LHC11h Pass2 – reconstruction details Use v5-01-Rev-19 in the production Start in inverse time order (last runs first, “LIFO”): OK Use MB trigger for CPass0: OK Exercise the full production setup on runs from “grey area”: special “gdb” production, run 170593: OK Run with TPC pools: OK Work on a local raw file: OK Use OCDB snapshot: OK Keep only the rec. points for the current event: OK Switch off QA: OK Switch off MUON, if the memory consumption is still too high 22

23. 23 Results CPass0: 185 jobs, 523,509 out of 539,890 raw files successfully reconstructed => 97% efficiency All runs with mag.field configuration (+ +) ready (170593-169628) Details on losses follow Pass2 current status: 131 jobs, 225,568 out of 362,790 files successfully reconstructed => 62.2% efficiency

24. 24 Losses – Pass2 G_exception – average 6.5% Strong run dependency

25. 25 Losses – Pass2 (2) Memory overrun – average 16.8% Strong run dependency Function of number of events/chunk and data taking configuration

26. 26 Losses G_exception Debugging hard as there is no traceback Seems to be random (from syswatch.log) Irreproducible in local tests No related issues shown by Valgrind Appears in the first events of the chunks Working with ROOT experts, at least to get the exception in the logs => special “gdb” run Memory overrun Additional profiling ongoing All external sources are out – gain only possible through changes in reconstruction

27. Special “gdb” run “catch throw” mode Several problems discovered, to be submitted to Savannah. Most probably uninitialized memory is used as index in an array – TClonesArray new with placement, where the index come from GetEntriesFast – corrupted (?) raw data – deletion of arrays

28. Plans Continue the investigation of G__exception on the GRID Understand the difference between CPass0 and Pass2 (MB trigger, V0s, cascades?) Try to reproduce completely the GRID execution flow on a local machine Resubmit the failed jobs in “split” mode

29. v5-02-Release Complete the transition of the analysis code to the new modules Move every library to a sub-directory and get rid of *.pkg (native CMake) Fix the Coverity defects and compilation warnings Solve as much as possible Savannah issues Create the branch at the end of January First stable tag in February