Integrating L1 with Gaucho

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Integrating L1 with Gaucho
Federica Legger
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Gaudi Framework
L1 (and HLT) algorithms
ECS
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Basically 2 things to do

• Modify Gaudi algorithms to make them talk to PVSS
  (via DIM services)
• Modify PVSS framework to run specific Gaudi
  algorithms.

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1. Gaudi components

• Online/DIM v1r0
• Online/Gaucho v2r0
• Online/GauchoJob v1r1

Example of a GAUDI application running a DIM
server (GaudiDimController application)
L1

• Runs HLThostname DIM server
• Commands
• Start -gt executes event loop
• Stop
• Pause
• Config

No need to modify
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L1Decision ? L1Gaucho.cpp

• Algorithm to publish example informations
• Histos
• PT1, PT2
• NL1TRACKS
• Counters
• L0/L1 accepted evts
• L1 rate
• L1 muon/generic yes

m_publishsvc-gtDeclInfo("counter1",counter1)
m_publishsvc-gtDeclInfo("counter2",counter2)
m_publishsvc-gtDeclInfo("counter3",counter3)
m_publishsvc-gtDeclInfo("counter4",counter4)
m_publishsvc-gtDeclInfo("fraction",frac1)
m_publishsvc-gtDeclInfo("status",status)
m_publishsvc-gtDeclInfo("NL1TRACKS",myhistoNL1TR)
m_publishsvc-gtDeclInfo("PT1",myhistoPT1)
m_publishsvc-gtDeclInfo("PT2",myhistoPT2)
counters
histograms
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Gaudi job steered by JobOptions.opts
ApplicationMgr.ExtSvc "ToolSvc" ,
"ParticlePropertySvc", "EventSelector"
ApplicationMgr.ExtSvc "MonitorSvc"
//
// DLLs needed by a standard job.
// Appl
icationMgr.DLLs "GaudiAlg", "GaudiAud","Gaucho"
// Gaudi sequence for L1 //
// rerun L0 and
L1 triggers include "DAVINCIROOT/options/L0.op
ts" include "TRGSYSROOT/options/L1.opts" //
activate Trg checking sequence include
"TRGSYSROOT/options/TrgChecking.opts"
TrgChecking.Members "TrgL0Filter","TrgTrackToC
ontainer", "TrgTrack2MCParticle",
"TrgChecker/L1TrgChecker",
"L1RecoCheck","L1Gaucho"
Gaudi/Gaucho
Run L0/L1
Run L1Gaucho
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2. PVSS

• Install PVSS 3.0
• Install LHCb Framework 2.0.9
• Modify to run your own GaudiJob.

only 1 line to be changed
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thats it!
DIM DNS on lxplus
Gaudi Application running L1 decision algorithm
DIM server on lxplus
PVSS running on my PC in Lausanne
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From PVSS start Gaudi job on lxplus
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From PVSS start Gaudi job on lxplus
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Histos and counters updated in real time
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• Gaucho user guide
• http//lhcb-comp.web.cern/lhcb-comp/ECS/Gaucho/def
  ault.htm

Download PVSS LHCb Framework
Download ROOT viewer for PVSS
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Conclusions

• L1 Gaucho integration
• Straightforward
• Still some problems to solve (ROOT viewer)
• L1 Gaucho code
• Gaudi code temporarly stored in Trg/L1Decision
• in a separate /gaucho directory