5 June 2003 Alan Norton / Focus / EP Topics 1

Other EP Topics

Some 2003 Running Experiments

- NA48/2 (Flavio Marchetto)- Compass (Benigno Gobbo)- NA60 (Carlos Lourenco)

EP/SFT Inherited Commitments (John Harvey)

2Alan Norton / Focus / EP Topics5 June 2003

NA48/2

COMPASS

NA60

JUNE 13 SEP 8 OCT 26

5 June 2003 Alan Norton / Focus / EP Topics 3

Measure of the asymmetry in the Dalitz plot of fromK+ with respect to fromK-

Many other rare K decay channels

5 June 2003 Alan Norton / Focus / EP Topics 4

NA48/2

Requested: 120 days in 2003Got: ~ 70 days

• New Beams – simultaneous K+K-

• New Beam Spectrometer• Different Trigger setup

5 June 2003 Alan Norton / Focus / EP Topics 5

To limit the biases due to the detector differences during the the data taking the K+ and K- are simultaneous

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• Data taking: 75 days (minus Machine Development)

• 2 levels of hardware trigger select ~60 K trig/burst which are recorded by the online Pcfarm.

The load corresponds to 0.5 GB of rawdata/burst

• Triggers are filtered by a L3 software trigger to produce several data streams:

1. goldraw: raw format.

2. goldcmp: compacted format (1/5 of raw).

3. calibration and streams for specific studies:10% of the full statistics.

5 June 2003 Alan Norton / Focus / EP Topics 7

• L3 to be used in flagging mode

• Goldraw, goldcmp and other streams are written to Castor

Total load per burst : 0.5 GB(goldraw) + 0.1(goldcmp)

+ 0.1(other streams) = 0.7 GB/burst

which gives 3.5 TB/day and 175 TB in total

(assuming ~70 % data taking efficiency.

5 June 2003 Alan Norton / Focus / EP Topics 8

NA48/2Dedicated use of CDR and CASTOR

Priority channelsReduce ~ 25 TB goldcmp to ~ 5 TB

L3 runs continuously on lxbatch~ 100 jobs on average

Not yet fully migrated from ‘old’ na48 setupCDR main control on a Sun Na48pc/na48cern used for Lkr calibration

Installation of 10 disk servers now critical !!7 from Cocotime3 from NA48/2 institutes

5 June 2003 Alan Norton / Focus / EP Topics 9

NA48/2

Preliminary Analysis during the runPriority channelsReduce ~ 25 TB goldcmp to ~ 5 TB

Report to SPSC in OctoberQuality of data BackgroundsSignificance of sample

5 June 2003 Alan Norton / Focus / EP Topics 10

Compass• DAQ period already started

– Experiment under Setup– Physics running expected by mid June – Expected sample

• This year period will be shorter than last year one (~80%)• assuming the last year efficiency expect to collect about 200 TB of raw

data or more (will enlarge trigger acceptance to test On Line Filtering– Expected sustained DAQ rate

• Added more tracking devices but event size should not change much• Same SPS duty cycle• ~ 40 MBps or more (due to higher trigger rate)

– No L3 Trigger (On Line Filtering) yet • But it is being tested flagging events. Trigger rate will be increased up

to 30% to test flagging efficiency

5 June 2003 Alan Norton / Focus / EP Topics 11

Compass (continued)• 2002 Data Production

– Still on going due to several delay sources• (Objectivity → Oracle) & (9940 → 9940B) migrations troubles

– Software setup– Delayed 9940B drives delivery

• Spectrometer alignment and “understanding”– Some Period Production delayed due to long code certification

procedures – We will need to reprocess Objectivity data too– 50% of 2002 data processed

• 4 “SPS periods”. • 1 period to be produced• 3 periods to be re-processed (the ones stored in Objectivity/DB)

– 0.7 s/event (on a 1GHz PIII machine)• Improvements in production code slowed down program speed

– Asked >100 SPECint200 needed to process all 2002 in ~ 4 months • Up to now: we got no more that half of such CPU power

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Compass (continued)

• Oracle DBs– Got help from IT for migration

• ~1FTE from IT, ~1-2 FTE from COMPASS– Lost 1-2 months due to delay in 9940B delivery and various

troubles– Reasonably stable now

• Some problems still appears– Forced to stay on GCC2 due to available Oracle libraries

• No way to completely certify out code using GCC3• We risk to be the unique experiment asking for GCC2 installed

when upgrading to future Linux releases

5 June 2003 Alan Norton / Focus / EP Topics 13

NA60

Indium Run: ~ 30 days in 2003Will run with Protons in 2004

• Expect about 0.5 TB per day • Use CDR and Castor

• All analysis done locallyPrivate Linux setup in B559PC farms in Lisbon and Cagliari

• Main problem is network connection to B559

5 June 2003 Alan Norton / Focus / EP Topics 14

Commitments taken over by EP/SFT

CERNLIB (including PAW and GEANT3)till end 2003

keep-as-is from 2003

AIDA (ANAPHE) residual support mainly HARP and Compass ?Geant 4 tests & examples

GEANT4 (MoU -> Collaboration agreement)current level of support for

visitors, PAfor development of physics

components