Manchester Christmas Meeting 2006Manchester Christmas Meeting 2006

• OPAL

• ATLAS– Trigger system commissioning– Trigger configuration– Trigger information in all data formats/DB– Trigger analysis tools– Top physics analysis– Large scale testing of HLT farms on the Grid– Our group effort in trigger and physics analysis

• Jet algorithm studies at the Tevatron/LHC (M. Wobisch)

• SUSY in e collisions at the LC (A. Oh, A. De Roeck)

Thorsten WenglerManchester, 21 Dec 06

T. Wengler Xmas meeting, Manchester, 21 Dec 2006 2

Trigger CommissioningTrigger Commissioning

The ATLAS Trigger/DAQ project:

T.W.

T. Wengler Xmas meeting, Manchester, 21 Dec 2006 3

Cosmic data taking 18./19. Nov 2006, toroid field on

We have built the first complete trigger chain in the pit …We have built the first complete trigger chain in the pit …

• … and taken data, e.g. here with field on!– Final trigger electronics– Using central trigger logic

and timing signals

• Also integration with HLT has started

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Installation is far from finished …Installation is far from finished …

• First out of 6 big wheels installed– Fully equipped with trigger

electronics– Access and testing in the pit

are a nightm… challenge!– First wheel took 6 month to

install– Time for remaining wheels is

… 6 month.

• Calorimeter trigger installation going on …

TGC detectors with on-detectortrigger electronics in cavern

…a person

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With Simon

Trigger configurationTrigger configuration

Working on main interface to operate the trigger online

– Java GUI– DB structure– Data handling offline– Just had major review

Assignment of trigger thersholds to input cable lines

Master view of Lvl1 configuration

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How to analyse trigger data in ATLAS + …How to analyse trigger data in ATLAS + …

CERN-ATL-COM-DAQ-2006-044

– With J. Haller, A. Hoecker, J. Stelzer

– What trigger data is needed to account for the trigger in analysis

– Where is it stored

– How is it accessed

– How does it fit into the picture of how we will do analysis in ATLAS

ATLAS reference paper

– Editor of TDAQ/Lvl1 section

– To be submitted by ~June ‘07

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Next round of ATLAS physics notes (CSC)Next round of ATLAS physics notes (CSC)

• Development of trigger analysis tools– With Simon, A. Krazsnahorkay, D.

Berge– Now used ATLAS wide– Main editor for note on triggering

top events (Spring ‘07)

• Analysis of top events– Trigger studies (above + Un-ki,

Jenna, [Jiri])– Top cross section– Include top properties with help

from Christian

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Full dummy slice 64 nodes

Full dummy slice ~10 nodes

77 node LVL2 system ran 48hrs

Manchester GRID Tier 2 cluster as ATLAS HLT test siteManchester GRID Tier 2 cluster as ATLAS HLT test site

With A. Forti, S. Wheeler, H. Garitaonandia

• Up to 900 nodes• Large system on short notice• Regular release testing

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Our group effort in trigger and physics analysisOur group effort in trigger and physics analysis

• Resources needed (minimum)– Enough people to make an impact and establish the group as the

experts in one or more areas, say a 50% involvement of• 3 or more academic and research staff• 2 or more postdocs• 3-4 or more students

– Money for local computing equipment and travel

From last year’s Christmas meetingTrigger:• James, Paul B., [Jiri] - HLT running/monitoring• Simon, Thorsten - configuration

… not (yet) counting FP420/diffractive here.

Analysis (including trigger studies):• Paul B. - QGC• Jenna, Fred, Simon, Thorsten, Un-ki, (Christian), (Paul M.) - top x-section,

properties, top to charged Higgs, … Joe - MC verification• [Jiri] - jet physics (QCD?/top?)• Steve, Paul M. - magnetic field mapping, ID alignment

o.k.o.k.

-1(2)

Backup SlidesBackup Slides

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We have built the first complete trigger chain in the pit …We have built the first complete trigger chain in the pit …

CalorimetersCalorimetersCalorimetersCalorimeters

Calorimeter Trigger

Calorimeter Trigger

RPC DetectorsRPC DetectorsRPC DetectorsRPC Detectors TGC DetectorsTGC DetectorsTGC DetectorsTGC Detectors

Central TriggerCentral Trigger

ProcessorProcessor

Central TriggerCentral Trigger

ProcessorProcessor

LTP(I) /BUSYLTP(I) /BUSY

TTCTTC

LTP(I) /BUSYLTP(I) /BUSY

TTCTTC

RPC muon TriggerRPC muon Trigger TGC muon TriggerTGC muon TriggerTGC muon TriggerTGC muon Trigger

Mu-CTPMu-CTP Interface InterfaceMu-CTPMu-CTP Interface Interface

Front-endsFront-endsFront-endsFront-ends Lvl2 TriggerLvl2 TriggerLvl2 TriggerLvl2 Trigger

RoIs

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ATLAS PIT, Jura side, 17 Dec 2006ATLAS PIT, Jura side, 17 Dec 2006

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Linear collider studies: SUSYLinear collider studies: SUSY

Assume and discovered at s = 1TeV LC, but > 1/2 s can use e collisions with polarized photons to extend range

Will hopefully still lead to a paper.

QuickTime™ and aPhoto - JPEG decompressor

are needed to see this picture.QuickTime™ and a

Photo - JPEG decompress orare needed to see this pic ture.

QuickTime™ and aPhoto - JPEG decompress or

are needed to see this pic ture.

QuickTime™ and aPhoto - JPEG decompressor

are needed to see this picture.

Barger, Han, Kelly, hep-ph/9709366

Sherpa + TESLA Simdet 4 Det.-Sim.

A.DeRoeck, A.Oh, T.W. Mo = 500 GeV, P=+1

Mo = 700 GeV, P=+1ECFA@ Durham’04

pe vs. cos(e)

…etc

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Manchester Tier2 Grid Cluster for ATLAS HLT testsManchester Tier2 Grid Cluster for ATLAS HLT tests

• Aim: Provision of Manchester Tier2 GRID cluster as a medium to large scale TDAQ testbed facility of up to 900 nodes, available at short notice (~one week)

• Use: HLT testing; regular large scale multi-node testing (e.g. nightlies)

• Immediate plans: consolidation and further testing of grid tools; user documentation

• Regular maintenance: Track pre-series releases; regular running of a full partition; regular reports to this(?) meeting

• Longer term: debugging of TDAQ configurations and configuration database generation tools, HLT testing (algorithms) etc.

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StatusStatus

• grid-tdaq-tools have been developed– reserve nodes; provide list of reserved nodes (input to other

tools)– start pmg agents– log collection– log cleanup– kill processes– debug tools

• Image from point1 installed; can run independently (without further modification)– tdaq-01-04-01 – tdaq-01-06-01

• Will be usable by anyone with a valid GRID certificate (and who is a member of the ATLAS VO)

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Technical spec on Manchester Tier-2Technical spec on Manchester Tier-2

• 1000 nodes (100 for engineers only)• Currently split in 2 separate clusters (different s/w areas)• Gb/s interfaces connected to 1 Gb/s rack switches; each

rack switchgroups 20 machines and is connected to a top level 10Gb/s cisco switch

• 2.8 GHz dual-cpu (Intel)• OS SL3.0.4• 4 GB of memory per node• 500 GB disk per node• http://www.gridpp.ac.uk/northgrid/manchester/• http://www.gridpp.ac.uk/wiki/Manchester_(10_Questions)