17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
News from PandaRoot:what happened in the last months
and what is going to happen
Stefano Spataro
Tuesday, 17th May, 2011
ISTITUTO NAZIONALE
DI FISICA NUCLEARE
Sezione di Torino
for the computing groups
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
The PandaRoot framework
Alien2 based GRIDTracking TDR data challenge
compiled and running on more than 10 Linux platforms + Mac OS X
ROOT(5.26 5.29)
dynamic data structure(based on ROOT Trees and Folders)
use of many ROOT application(TGeo, EVE, TMVA, TMemStat)
Virtual Monte-Carlo(2.7b r537)
same geometry/codefor
Geant3Geant4 (9.2 9.4)
based on
CERN/ALICEFAIR/HADES-CBM-R3B
collaboration withexternal developers
May11
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Central Tracker TDR
MVD: Bonn, Torino, Julich
p
STT:Pavia, Julich
TPC:Munich
GEM:GSI
DeadlineJune 2011
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
GRID Data Challenge 4
test of massive data productionfor the tracking TDR
Stability of PandaRoot code
GRID performance
Computing time for full reconstruction
Disk space required for full reconstruction
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Simulation Data Sample
DPM Background events
MIN=2° (reduced Coulomb scattering)
3 energies pbar p @ 1.64 GeV/c pbar p @ 4 GeV/c pbar p @ 15 GeV/c
only Barrel SpectrometerTPC and STT setup – 150cm
3 GEM planes
1 Million events for each setup/energy
Total ~ 6 Mevents
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
GeometryFull Target Spectrometer
No Forward Spectrometer
Pipes (pipe+beam)
MVD
TPC/STT (150 cm)
GEM (3 planes)
DIRC
DISC
EMC
MDT
Coils
Yoke + Muon Filter
Geant3
Alice settings for TPC
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Full Reconstruction
TPC
Geant3 (Alice) simulation
Full digitization
Lhe Tracking (MVD+TPC+GEM)
Correlation for PID
Available PID algorithms
STT
Geant3 simulation
Full digitization
Tracking (MVD+STT)
Correlation for PID
Available PID algorithms
Ready – minor fixesSomething to improveSomething missing
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
The GRID
Dubna busy GSI limited Torino off (local shutdown) Jobs submitted manually
Not the full GRID capabilities
Down Ready No Jobs
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Maximum305 running jobs in parallel
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Evaluation
http://panda-wiki.gsi.de/cgi-bin/view/Computing/DataChallenge4
Average DONE ratebefore subjobs resubmission: 95%after resubmission: 100%Good files (STT): 99%Good Files (TPC): 98%
Very high success rate!
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
CPU Time
STT
1.64 GeV/c 500 events ~ 60 min
4.00 GeV/c 500 events ~ 70 min
15.0 GeV/c 1000 events ~ 3h 30 min
TPC
1.64 GeV/c 500 events ~ 30 min
4.00 GeV/c 500 events ~ 40 min
15.0 GeV/c 1000 events ~1h 40 min
Average events per day: 2.5M
STT Pattern Recognition slower than TPC LHE trackingTPC Pattern Recognition will need more time
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
File Sizes
TPC1.64 GeV/c ~ 200 kB/event
4.00 GeV/c ~ 250 kB/event
15.0 GeV/c ~ 300 kB/event
variations of 10-20% between different runs
STT1.64 GeV/c ~ 40 kB/event
4.00 GeV/c ~ 50 kB/event
15.0 GeV/c ~ 60 kB/event
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
AOD
STT
TPC
Parameters 3 MB/file 2 MB/file
Simulation 19 kB/evt 133 kB/evt
Digitization 9 kB/evt 6 kB/evt
Reconstruction 1 kB/evt < 58 kB/evt
Pid 2.2 kB/evt 2.3 kB/evt
Total ~40 kb/evt ~200 kB/evt
ESD
MC
“Differential” File Size
pbar p @ 4 GeV/c
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Do we have really something useful?
STT setup445k Events - pbar p @ 4 GeV/c (DPM)
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
STT setup445k Events - pbar p @ 4 GeV/c (DPM)
EMC MVD
DIRC DISC
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Simulation of Benchmark Channels
pp
pp
DDpp
npp
C
)3770(
)(
Still not assigned
Realistic ReconstructionCentral Tracker + MVD + GEM
Event Mixing
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Reconstruction @ May
STT dE/dx done
PR with GEM done
Event Time Mixing done
TPC dE/dx something (?)
PR TPC big improvements
PR TPC+MVD no news
PR MVD+TPC+GEM no news
Event Time Mixing
Still several points to fixbefore starting production
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
EventTime
Mixing
G.Boca
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
G.Boca
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
G.Boca
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Event Time Mixing
STT Mix with maximum 10 evts
PR 6 times slower
TPC Mix with 1000 evts
PR 1 evt 30 min
Room for improvements in pattern recognition code
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
First test of TPC dE/dx algorythm
TPC dE/dxVs
momentum
SUM
very primitive - it requires experts!
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Tracking Particles
somethingwrong
fineresolution
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Electron ID
Positive Particles Negative Particles
Ronald algorythm based on Bayes in PandaRoot
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Muon ID
muons
pions
BARREL BARREL+EC EC+MF
BARREL BARREL+EC EC+MF
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
BARREL
@ 3 GeV/c
BARREL
@ 3 GeV/c
BARREL
@ 1 GeV/c
BARREL
@1 GeV/c
Muon ID
17/05/2011
Stefano Spataro
News from PandaRoot: what happened in the
last months and what is going to happen
Trying to Summarize
Ongoing Activities for the tracking TDRThe GRID is going to be used for data production
Reconstruction is going to be finalized STT code almost ready
TPC needs a bit more time
For the analysisElectron ID possible
Muon ID possibleStudies on analysis tools