Pythia Performance Tests

First test of data generation/data analysis between P5 (PYTHIA version 5.720, JETSET version 7.408) and P6 (PYTHIA version 6.319)

-- JuanCastillo - 17 Apr 2008

Event generation with data recording

"Myparticle" format.

P5 and P6 Default ROOT structure: inherited from FORTRAN P5 generator.

PYTHIA chtags (ROOT leaves): 'id','idparent','dwinlow','dwinup',
     +            'px','py','pz',
     +            'energy','mass',
     +            'vertexx','vertexy','vertexz',
     +            'eventnum','rap'/

About "time" UNIX time, and ROOT TStopwatch

Machines: lxi009 (P6), lxi010 (P5)

events 5000 100000
P5 time -p real 14.29 user 12.94 sys 0.47 real 525.07 user 422.68 sys 87.11
P6 TStopwatch Real time 0:01:38, CP time 97.740 Real time 0:33:37, CP time 2013.880
Ratio 7 4.2

Error:on P5 run.

Analyzing event:  68126
 RZOUT . Request exceeds quota
 ***** ERROR in HRZOUT : An error has occured whilst writing data : ID=       1
 RZOUT . Request exceeds quota

Users?

Machines: lxial19 (both running)

events 5000 100000
P5 time -p real 29.22 user 21.31 sys 1.10 real 848.04 user 618.56 sys 87.08
P6 TStopwatch Real time 0:03:04, CP time 147.390 Real time 1:02:25, CP time 2953.620
Ratio 6 3.7

Error:on P5 run.

Analyzing event:  68126
 RZOUT . Request exceeds quota
 ***** ERROR in HRZOUT : An error has occured whilst writing data : ID=       1
 RZOUT . Request exceeds quota
 ***** ERROR in HRZOUT : An error has occured whilst writing data : ID=       1
 Analyzing event:  68127

Topic revision: r3 - 2008-05-02, JuanCastillo
 
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