july 2002frédéric fleuret - llr ccf : the french computing center phenix @ ccf llr @ phenix @ ccf...

July 2002 Frédéric Fleuret - LLR

• CCF : The French Computing Center

• Phenix @ CCF

• LLR @ Phenix @ CCF

Software work at the French Computing Center (CCF)

Phenix Collaboration MeetingFrédéric Fleuret

LLR-Ecole Polytechnique


French Computing Center (IN2P3)

The IN2P3 Computing Centre was created to meet the needs of these laboratories. This centre must be capable of making readily available a very large amount of data (several hundred terabytes) in a secure manner, distributed between disks and tapes managed by robots. Computing power must be rapidly extensible and data access must be as transparent as possible.

• The Institute

• IN2P3 computing center

IN2P3 =Institut National de Physique Nucleaire et de Physique des Particles = Institute of the CNRS (~26000 people, 12000 scientists) American NSF ~ 3300 people, 1700 permanent scientists = 18 laboratories + 1 Computing Center (~45 people)


French Computing Center (IN2P3)

• Power : Linux Machines status (12/01)– PCIII Linux 12 machines

• 2 proc. / machine (500 MHz)

• Memory : 256 MB

– PCIII Linux 96 machines• 2 proc. / machine (750 MHz)

• Memory : 1024 MB

– PCIII Linux 93 machines• 2 proc. / machine (1000 MHz)

• Memory : 1024 MB

Today 10,000 SpecInt95


French Computing Center (IN2P3)• File Storage :

– HPSS :• 36000 Cartridges• 6 Cartridge Mounting silos• Capacity : 720 TB on line

• File Transfer :– BBFTP is a software designed to quickly transfer files

accross a wide area network. It has been written for the babar experiment in order to transfer big files (more than 2 GigaBytes) between SLAC (California) and the

In2p3 Computing Center (Lyon,France).

1.3 TB

1.3 TB

7 TB

50 GB

36000 cartridges400 cartridges


Phenix @ CCF• HPSS storage status @ CCF (July 02)

• Phenix : low usage so far... Group Space (GB)

TOTAL 162,239

Agape 373

Aleph 155

Alice 1,547

AMS 558

Archeops 156

Atlas 2,503

Babar 98,498

Clas 1,116

CMSF 2,472

D0 8,119

Delphi 0

Eros2,034

Heral 477

Indra 0

LHCb2,020

Nusol 367

Pauger 19,008

Phenix 205

Snovae 192

Virgo3,635


Phenix @ CCF• HPSS Phenix Uses @ CCF :

– Large storage capability (today, up to 50 TB for Phenix)– Low usage, so far... PHENIX @ CCF

(200 GB)

D0 @ CCF(8 TB)

BaBar @ CCF(100 TB)


Phenix @ CCF• Network traffic @ CCF :

– IN (US CCF) : 1.2 – 2.0 MB/secs.– OUT (CCF US) : ~1.5 MB/secs.

BNL CCF(~1.2 MB/sec.)

CCF FNAL (~1.5 MB/sec.)

SLAC CCF(~2 MB/sec.)


LLR @ Phenix @ CCF

• The « guru » : Albert Romana

• Code implementation– Run complete simulation/reconstruction chain,

both interactively and on batch @ CCF.

• Code development– Database for file storage @ CCF

– Tutorials & script to run phenix code (run_phnx)

– Start working on nanoDSTs for muons


LLR @ Phenix @ CCF

• HPSS database @ CCF (Albert Romana)

• Get information about files stored in HPSS

• Updated automatically when storing files in HPSS

• Accessible on the web

• Ready to store files (in HPSS) @ CCF


LLR @ Phenix @ CCF• Tutorials (Raphaël Granier)

– 1 tutorial on Muon Reconstruction Code.

– 2 tutorials on Phenix Muon Software (based on Yajun Mao Tutorial).

Tutorial to runMuon Software @ CCF

Tutorial to runMuon Software @ RCF


LLR @ Phenix @ CCF

• run_phnx (Albert)– Run any of the PHENIX programs :

• genp (Pythia), genh (Hijing)

• pisa, resp

• reco, dst

– Syntax : run_phnx genp 1000

– By default, uses the scripts, macros and files installed

by Raphael in his tutorial.

– Allows to execute programs either interactively or by

batch.

– Upgrade version : use java and create panels to run

run_phnx.


LLR @ Phenix @ CCF• Data Simulation : Hijing (Geun-Beom Kim)

– Adapted to CCF

– Ready to produce Hijing events @ CCFc************************************************ cPISA INPUT INTERFACE TO HIJING 1.35 (F77 Syntax) c************************************************$hijing_inp nruns = 1000, elgev = 200.0, ref = 'CMS', chproj = 'A', chtarg = 'A', n1 = 197, iz1 = 79, n2 = 197, iz2 = 79, bmin = 0.0, bmax = 0.0, iseed = 1, iseed_skip = 0, jet_trigger = 0, pthard = 0.0, nthetamin=90.0, nthetamax=90.0, sthetamin=143.0, sthetamax=171.0, ppmin=0.0, $end

Y+-

M+-

Au-Au@200GeV/A


LLR @ Phenix @ CCF• Data Simulation : Pythia (Frédéric)

– adapted to CCF

– Ready to produce Pythia events @ CCF!============= CONTROL DATA CARDS FOR PYTHIA INITIALIZATION ===========*!'MSEL=0' ! turn OFF global process selection'MSTP(51)=5005' ! structure function for GRV LO94'MSTP(52)=2' ! structure function for GRV LO94'MSUB(86)=1' ! g+g -> J/psi+g turned ON'MSUB(87)=1' ! g+g -> chi0_c+g turned ON'MSUB(88)=1' ! g+g -> chi1_c+g turned ON'MSUB(89)=1' ! g+g -> chi2_c+g turned ON'MDME(721,1)=0' ! J/psi -> ee turned OFF'MDME(722,1)=1' ! J/psi -> mumu turned ON'MDME(723,1)=0' ! J/psi -> random turned OFF'MRLU(1)=35476291' ! starting random number! $pyth_par tnumevt = 100 sqrts = 200. $end!!================ CONTROL DATA CARDS FOR GEOMETRICAL SELECTION =======* $nmlglo thmi_no = 9. thma_no = 37. no_on = .false. thmi_su = 143. thma_su = 171. su_on = .true. $end!!================ CONTROL DATA FOR SIGNAL DESCRIPTION ================* $nmlsig isig1 = 443 iprod1 = 13 nprod1 = 1,1 isig2 = 443 iprod2 = -13 nprod2 = 1,1 mi = 0.,100. $end!!================ CONTROL DATA CARDS FOR OUTPUTS SELECTION ===========*

generated J/

dimuons

reconstructed dimuons

pp@200GeV


LLR @ Phenix @ CCF

• Data Reconstruction @ CCF : – PRDF DSTs DSTs : proof of principle (Raphaël)

– DST muon nanoDSTs (Geun-Beom & Frédéric)

• copied 4600 DSTs segments from RHIC disks

– 1 one MuID road events (filtered by Atsushi Taketani)

• Used bbftp able to transfer directly to HPSS-CCF

• Produce nanoDSTs

• output merge nanoDST ~ 200 MB

• ~ 370 000 events total (~35000 with 2 muons)


LLR @ Phenix @ CCF• Data Reconstruction @ CCF :

– DST muon nanoDSTs (Geun-Beom & Frédéric)• Selection cuts :

– 2 ntracks 4 events (90% of the entire stat)– -38 cm < event Zvertex < 38cm– track PT > 1 GeV.

– Ready to reconstruct data @ CCF

QM Poster(Hiroki Sato)

Red : Opposite SignBlue : Like Sign

(0.2

7 G

eV)


• Conclusion : we have done …– File transfer– Tutorials for using muon code @ CCF & RCF– Simulations– Reconstruction– First nanoDSTs pass for muons





• Prospects– Ready to help producing nDSTs, uDSTs, DSTs…

– Ready to help producing Monte Carlo data for signal and background analysis.

– More work on muon analysis.




july 2002frédéric fleuret - llr ccf : the french computing center phenix @ ccf llr @ phenix @ ccf...

Documents

ccfhpss phenix

phenix programs

phenix code run

phenix muon software

computing power

slac ccf

us ccf

ccf us