sPHENIX discussion of software

[camelia mironov <cmironov AT mit.edu>]

Kind reminder for all TGs: please check these files, and report if you need 
any extra info/collection/objects in them in order to successfully carry out 
your analyses. 

c.

> On Nov 30, 2020, at 18:31, pinkenburg <pinkenburg AT bnl.gov> wrote:
> 
> Hi folks,
> 
> The Geant4 processing has been ongoing and we have close to 500,000 events 
> from the initial geant4 processing. The reconstruction chain needs some 
> work but is basically functional up to jets. I split it into six separate 
> steps (https://github.com/sPHENIX-Collaboration/MDC1/tree/main/submit):
> 
> pass1:
> Geant4 simulation of sHijing, output (G4Hits of all active detectors) is 
> written to
> /sphenix/data/data02/sphnxpro/MDC1/sHijing_HepMC/G4Hits/data
> Each file contains 100 events
> 
> pass2:
> 50kHz pileup generation, output is split into 4 files
> DST_BBC_G4HIT_sHijing_0_12fm contains bbc and epd G4Hits
> DST_CALO_G4HIT_sHijing_0_12fm contains all calorimeter G4Hits
> DST_TRKR_G4HIT_sHijing_0_12fm contains tracking detector G4Hits
> DST_TRUTH_G4HIT_sHijing_0_12fm contains the truth info (and HepMC records 
> and black hole hits)
> the output is written to:
> /sphenix/data/data02/sphnxpro/MDC1/sHijing_HepMC/PileUp/data
> Each file contains about 50 events.
> 
> 
> pass3calo
> processing of calorimeter data from the DST_CALO_GHITS files, towers (all 
> flavors) and clusters are saved. I tried the topo clusters but it ran out 
> of memory (I killed it as it reached 40GB).
> the output is written to
> /sphenix/data/data02/sphnxpro/MDC1/sHijing_HepMC/CaloCluster/data
> 
>  pass3trk:
> tracking pre-pass: tpc electron drift and clustering, silicon g4hit 
> clustering and silicon seeds from truth info using DST_TRKR_G4HIT and 
> DST_TRKR_G4HIT files. Saves clusters for the tracking
> the output is written to
> /sphenix/data/data02/sphnxpro/MDC1/sHijing_HepMC/TrkrCluster/data
> 
> pass4trk:
> tracking and vertex reconstruction with ACTS (also rave vertex)
> the output goes to
> /sphenix/data/data02/sphnxpro/MDC1/sHijing_HepMC/Tracks/data
> 
> pass5jet:
> jet reconstruction based on tracks (clusters need a vertex)
> the output goes to
> /sphenix/data/data02/sphnxpro/MDC1/sHijing_HepMC/Jets/data
> 
> 
> all files contain the data needed for the synchronization so one can mix 
> and match whatever is needed. There is a decent amount of calorimeter 
> files, tracking (and jets) are single files used to establish that this 
> works. But they can certainly be used to check if they work as input for 
> analysis.
> 
> Chris
> 
> 
> *************************************************************
> 
> Christopher H. Pinkenburg     ;    pinkenburg AT bnl.gov
>                               ;    http://www.phenix.bnl.gov/~pinkenbu
> 
> Brookhaven National Laboratory        ;    phone: (631) 344-5692
> Physics Department Bldg 510 C ;    fax:   (631) 344-3253
> Upton, NY 11973-5000
> 
> *************************************************************
> 
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