Transcript Standard Parameters - Web Lecture Archive Project

TDAQ Report
LVL1 Calo & Muon
DAQ & HLT
DCS
Level-1 Calorimeter Trigger
Success in test-beam
Integrated with:
Single-tower
saturation level
•LAr and Tile Calorimeters, via
TileCal patch-panels and receivers
•Central Trigger Processor
•Region-of-Interest Builder
•ATLAS run-control, etc.
•ATLAS DAQ, via RODs and ROS
Slope ~1
Internally:
•All modules in the Calorimeter Trigger
logic chain functioned
•Fast serial links to CPM and JEM
worked well, verifying
–BC-MUX scheme for CPM (halves
number of links)
–PPM formation of jet elements
Produced e.m., jet, and
total-energy triggers
Slope ~0.55 to be corrected by:
• e/h ratio: x1.5
• ET not E: x1.25
to get ~1.0
20 GeV e.m.
trigger threshold
PreProcessor
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Preprocessor Module
 Control problems seen in test-beam have been understood
and corrected
 Will build improved prototype
 Could do early installation
using existing prototypes if
necessary
Multi-chip modules (MCMs)
4 AnIn
16 MCM
 Tested successfully under:
 Severe vibration
 Temperature cycling (they even work at 120°C!)
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PRR for ASIC/MCM assembly was held in January
LVDS
ASICs
 Production ASIC wafers have now been series tested, and in principle
enough (~4400) have passed for final system
 Early wafers had yields ~60%, as expected (process, die size)
 Recent batches have quality control problems – yield lower and very
inconsistent
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Being discussed with the manufacturer, more will be made
Cluster & Jet/Energy Processors
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Cluster Processor Module
 Latest prototypes look very good
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Jet/Energy Module
 Needs only minor design changes and a few more system tests
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FDR planned for March
FDR planned for April
Common Merger Module
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FDR was in September
Passed system tests
requested by FDR
 6 CPMs, 2 JEMs, 2 CMMs
running in a crate with
maximum backplane traffic
 Crate-to-crate merging
PRR planned for 28 February
System
CMM
Crate
CMM
Crate
CMM
CPMs
JEMs
Analogue Receivers,
Custom Backplane, and ROD
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Receivers
 Production TileCal receivers (2 crates) now built and being
shipped to CERN from Pittsburgh
 LAr receivers (6 crates) will follow at ~ one crate-full per month
Backplane
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FDR for backplane was on 6 December (no PRR needed)
Preparing for production (6 needed for CP and JEP)
ROD
 Standalone tests of
first 9U ROD have
gone well
 Second module is
now assembled
 Firmware writing
(11 variants!) is
going well
Commissioning and Calibration

Held joint Calorimeter/Trigger workshop on
installation, commissioning and calibration 1 Feb.
Aimed at initiating and reviving discussions on:
 Joint installation and commissioning plans, including testing
 Calibration requirements and procedures, mainly during installation
phase and leading to normal running
 Infrastructure needs, including DAQ etc.
Must agree on responsibilities in boundary areas between calorimetry and
trigger
Will set up working group of responsible people, etc.

Must agree on how to progress
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Who designs and writes which software, and to what timetable?
Operational responsibilities – who takes care of what?
What info is in which database, how accessed and controlled?
Endcap Muon Trigger
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Full chain of prototype system has
been operating for some time in lab
tests and, last year, at H8 with 25 ns
bunch structure beam
The PS boards used Version 4 of
“SLB” ASIC

Minor error in readout part of
ASIC at high rate was
understood, and revised
versions were submitted
towards the end of last year
Recently received prototypes of new
version (Version 4 ECO2) of SLB
ASIC

This is fully functional and the
problem with the previous
version has been solved
Now have fully-functional versions
for all ASIC types in the end-cap
muon trigger system
Barrel Muon Trigger

On-detector electronics related to the trigger
 Splitter boxes
 Production and testing well advanced; supply not a problem for
detector integration
 Pad boxes
 Depends crucially on Coincidence Matrix Array ASIC
 Final motherboard prototype under evaluation at CAEN
 Production of Pad-or mezzanine boards completed
 Cabling (within and between stations)
 Requires a lot of detailed design work
CMA ASIC
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Original prototype ASIC worked according to specification,
but programmable delay range had to be extended for final
detector cabling
Redesigned ASIC submitted last September
 Small functional changes, but major redesign
Packaged protos received by ASIC testing company
 Last week we received encouraging news: all test
vectors passed without error
Must now do evaluation of the protos in Pad test system
 Essential to validate the ASIC in the system as well as
with test vectors before drawing final conclusions – slice
test in Rome and cosmic-ray stand in BB5
Then place order for main production as soon as possible
Pads
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A small number of Pad boxes equipped with the original ASIC are
available for testing RPC detector assemblies
 Number limited by availability of proto ASICs (old version)
 8 boxes now available in BB5
Some more Pad boxes will become available soon equipped with
the new prototype ASICs
 Boards for 10 additional boxes available
Schedule is extremely critical for delivery of the Pad boxes in
production quantities
 Main installation of RPC system starting late August
Plan prepared to ensure that Pad electronics will become
available very quickly after delivery of ASICs
TC organized a review of the plan last November
 Big effort is being made to bring in some extra effort during
this critical period
ROBIN
 TDAQ component that receives and buffers the data from the RODs
 Final prototypes produced in Jan. 2005
 PRR scheduled March 1st,2005: preparations completed … including documents
 Subject to PRR, Pre-series production (50 boards) to start March 2005
 Planning foresees a volume production (650 units) to be completed in 3Q05
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200 boards to be installed and commissioned in 50 ROSs before end 2005
Overview of ROD Crate DAQ
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RCD provides an application framework
Commands
R
RRRR
to interface the RODs for
C
OOOO
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Control/Configuration
Data
D
DDDD
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Monitoring (Statistics/Event sampling)
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Data Readout (through VME bus)
 Synchronous readout of multiple crates provided
Commissioning phase 1 will be largely based on RCD (all ROS units not available
yet)
Development history:
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2003 – Initial implementation based on ROS software
 Design mostly driven by ROS requirements
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3Q04 – completed first major upgrade
 Largely used in Combined testbeam for ROD configuration/control
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1Q05 – completed second major upgrade
 Based on CTB feedback
 New code included in TDAQ-01-01-00 release
Latest RCD changes
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Introduced alternative user API for data readout
 Old one still supported
Introduced handling of VME interrupts
Enhanced configuration mechanism
More flexible publishing mechanism
Introduced multi-crate Event Builder
Architecture enhancements are documented in
ATL-DQ-ES-0066
 Detector representatives are being individually contacted to
schedule software upgrades
Progress in Measurements & Analysis
Group
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Performance measurements in testbeds in parallel with discrete event
simulation modelling 
 Predict the behavior in test-bed
 Extrapolate to the final system size
 Suggest optimizations for the final system
TDR proposed separate main switches for LVL2 & EB traffic
Optimisation  Mix L2 and EB nodes on 2 data switches:
 Better performance
 Moderated traffic in both Switches
 Queue sizes smaller in mixed network
  More reliable system
The EB and L2 systems are divided in 2
 More flexibility
Bigger systems possible in testbeds
System scalability
LVL2 Nodes: not running algorithms, driving the
DAQ as fast as they can.
→ROS: 30% Final Request Rate
→SFI: 41% GigaBit Bandwidth
→L2PU: 17 times more ROI rate
HLT/DAQ Pre-series
 Fully functional, small scale, version of the complete HLT/DAQ system
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Equivalent to a detector’s ‘module 0’
 Purpose and scope of the pre-series system:
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Pre commissioning phase:
o To validate the complete, integrated, HLT/DAQ functionality
o To validate the infrastructure, needed by HLT/DAQ, at point-1.
• Note it will be provisionally installed at point 1 (USA15 and SDX1)
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Commissioning phase
o To validate a component (e.g. a ROS) or a deliverable (e.g. a Level-2 rack) prior to its
installation and commissioning
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TDAQ post-commissioning development system.
o Validate new components (e.g. their functionality when integrated into a fully
functional system).
o Validate new software elements or software releases before moving them to the
experiment.
Pre-Series
USA15
SDX1
5.5
One
ROS
rack
-
TC rack
+ horiz.
Cooling
-
12 ROS
48 ROBINs
RoIB
rack
-
TC rack
+ horiz.
cooling
50% of
RoIB
One
Full L2
rack
-
TDAQ rack
30 HLT PCs
Partial
Superv’r
rack
One
Switch
rack
Partial
EFIO
rack
TDAQ
rack
3 HE PCs
TDAQ
rack
128-port
GEth for
L2+EB
TDAQ
rack
10 HE PC
(6 SFI 2 SFO 2 DFM)
-
-
-
Partial
EF rack
-
TDAQ
rack
12 HLT
PCs
ROS, L2, EFIO and EF racks : one Local File Servers, one or more Local
Switches
Partial
ONLINE
rack
-
TDAQ rack
4 HLT PC
(monitoring)
2 LE PC
(control)
2 Central
FileServers
Inside SDX1
Pre-Series
Pre-Series
 Work Packages for installation and commissioning in point 1 being
defined now
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Installation subject to communicated delivery dates
 Work packages to be discussed with technical coordination asap
 Planning of exploitation, operations & maintenance in progress
SysAdmin Task Force: active since mid December 2004
Goal: preparing a proposal for
Node system administration &
management at Point1
Topic so far addressed:
1. Users / Authentication
2. Booting / OS / Images
3. Software Istallation
4. File Systems
5. Farm Monitoring
6. Networking in general
7. Remote access to nodes
Task Force Members:
Andre DosAnjos
Gökhan Ünel
Haimo Zobernig
Lucian Leahu
Luis Bolinches
Marc Dobson
Marius Leahu
Matthias Wiesmann
Stefan Stancu
Currently: Collecting Input & discussing
with various people on a draft document
Soon: Make an EDMS note
Large Scale System Tests
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Data Challenges for control aspects of the HLT/DAQ system
Annual exercise for last 3-4 years with increasing numbers
of processors
Tests this year planned in Canada, UK and CERN following
on from last year’s tests
CERN tests on LXSHARE
 June/July timeframe in agreement with IT and discussed
in LCG PEB
 1 month with # processors increasing from 200 to
~1,000
HLT Progress
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Recent HLT workshop in Barcelona
Review status and plans for the various components required to
Integrate and Test HLT selection s/w
 Infrastructure Issues related to HLT Selection
 HLT Core s/w and plans
 Selection system performance
 Trigger configuration
 Testbeds and commissioning
 Monitoring in PT (Athena)
Follow-up established in particular on
 Timing & performance measurement plans
 Design review of core selection s/w
 Trigger configuration
 HLT commissioning
 Active participation of one of the Offline commissioners
 Preparation of various aspects of commissioning of HLT
 Understand HLT needs of detectors for their commissioning
 HLT planning for pre-series
HLT Issues
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S/w stability and areas of interface with offline
 Software testing
 Modularity (complexity & dependencies) – considerable recent
progress with ID s/w
 Data Preparation (recent discussions for LAr improvements in calo
trigger software workshop)
 Evaluate timing performance of full system and isolate (and replace
if necessary) elements with insufficient performance - particularly
critical for LVL2
  Established regular technical discussions with offline to clearly
identify areas which need improvement – plan & execute the work
 Priority has to increase in detector s/w for HLT (Steinar’s talk)
Trigger configuration
 Work to gain a complete picture of the requirements of trigger
configuration (LVL1/HLT)
 Common LVL1 & HLT trigger configuration prototype using condDB
in progress
CTB HLT Trigger Studies
 Study electron/pion separation on CTB data using calorimeter and
Inner Detector information from Level2 trigger algorithms.
 Compare results with CTB simulated data
ELECTRON
SELECTION
STRATEGY
• Beam instrumentation (Cherenkov, muTag,
muHalo)
• Calorimeter information (ET, hadronic
leakage, shower shapes variables)
• TRT information (number of tracks, hits, EM
cluster-track matching)
• Preliminary results of electron identification using LVL2 calorimeter
information.
• Most TB runs were not taken with LAr and Tile ROD in Physics Mode. Therefore
T2Calo has been modified to make use of the offline calorimeter cells
• Physics Mode Runs will be looked at in the future
e- 50 GeV Run 2102410
T2Calo EM ET (MeV)
T2Calo EM ET
e
+
ET > 3 GeV
rejects muons

MuTag vs. T2Calo EM ET (MeV)
T2Calo EM ET
muTag < 460
rejects muons
Muon Sagitta reconstructed by Fast @ H8
Straight Muon Beam of 250 GeV
MOORE recontruction: s ≈ 60 m
The sagitta reconstruction is shifted
by 300 m because Fast doesn’t
make use of allignment corrections.
The s width could be dueMOORE
to a wrong
calibration: checks ongoing.
mm
PESA Performance
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First meeting to re-focus the on-line Physics and Event Selection Validation and
Performance activities
Aims to address coherently the physics performance of the on-line selection in
the areas of
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Electrons and photons, Muons, Jets / Taus / ETmiss, b-tagging, B-physics
Building on the work of the existing “vertical slices”, some of them deployed
also in the recent Combined Test Beam
The goal is the definition of complete Trigger Menus, validated against selected
Physics channels

List of items of increasing complexity, moving from simple processes (like Z
 2e or Z  2) to others capable of steering more complex menus
(like H  2e2, top, …)
 Aim for a full exercise on the time scale of DC3
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Prepared also for the HLT commissioning during the cosmic data taking
 Devise specific algorithms if needed (e.g. select non-pointing tracks)
 Understand detector needs and requirements  e.g. recent discussions
with LAr and MDT
PESA Performance
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Presentations about the different selection schemes to identify objects with the
High Level Triggers
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Emphasize areas where reconstruction, combined performance and physics
groups can bring in their expertize to optimise selections and help shaping the
Trigger Menus
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http://agenda.cern.ch/age?a051058
Walk through available software (including steering of the
selections)
Need help to exploit selections on various data samples
Tune cuts, add details, evaluate rates and performances
Aim in ATLAS at Trigger-aware Physics analyses and Physics-aware Trigger
Selection
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Analysis groups to evaluate their understanding and sensitivity to
current trigger strategy and performance and propose
enhancements/additions to trigger strategy and performance
 See Fabiola & Steinar’s talk tomorrow morning
DCS Components
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CAN system: Production well advanced
 ELMB: production finished
 ELMB motherboard: prototype ok, order placed
 CAN Power Supply Unit (PSU): pre-series available,
production organised by PF/ESS for 3Q05
 Other equipment in CERN stores
SW: Working versions (mostly) available
 JCOP Framework for standard devices
 Finite State Machine
 Configuration DB
 JCOP prototype being evaluated
 Conditions DB
 Using Lisbon MySQL for commissioning data
 PVSS API manager to inject data in COOL being
studied, but technical problems not yet solved
 Subdetectors are waiting for the database(s)! 
DCS for ID integration in SR1
Aims of DCS prototype:
 Realistic testing of FE I/O
 Test of JCOP SW components
 Interfacing to external services
 Stand-alone operation of sub-systems
 Integrated operation of Inner Detector
… service for detector construction !!!
The following slides are from P.Ferrari and represent the work of the ID subdetectors
DCS Setup in the SR Building
GCS
SR DAQ
DDC
supervisor
LAN
TRT
SCT
SCT
Therm
Encl.
ENV
SCT
TRT
LCS Power
Pack
LCS
Cooling
SCS
master
TRT LV
SCT PS
ELMB
ILock
Sensors:
Temp
ELMB
IBOX
SCT PS
ELMB
ILock
ELMB
SCS ID
evaporative
Cooling
PLC
Curr
Air T.
etc..
Hum.
Press.
TRT HV
ELMB
PLC
Temp
Hum.
Press.
ELMB
monophase
cooling
SCS master
Pixel
Pixel
LCS Power
LCS Env
Rack
monitoring
HV/LV
ELMB
Sensors:
Temp
Pixel
SCS CIC
Rack/Env
Control
(regulators
Compressor)
ETHERNET
CANBUS
SCS master
Power
SR env
sensors:
Temp,
Humidity,
Pressure
ELMB
IBOX
Sensors:
Temp,
Humidity
SCT Power Supply
TRT SCS
x
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Summary
LVL1
Good progress on module production and software
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On-detector muon trigger electronics is a critical area (ASICs, schedule)
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Focus moving to commissioning of LVL1 and aspects with detectors
HLT/DAQ
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Elements needed for first stage of commissioning now in place
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Good progress on system performance and scalability studies
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Pre-series system being purchased and installation ~on time
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HLT testbeam analyses in progress
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HLT system performance issues - effort established to isolate and improve
critical elements
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Working with detectors to understand calibration requirements
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Focus PESA work on complete menus, selection performance &
commissioning
DCS
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System being used widely by detectors for commissioning and testing work
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Good collaboration with DB group but much work remains to be done
Manpower remains a great concern in some areas of the project in particular
given the “client and server” nature of TDAQ
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Trying to address this where possible with increased coherence between
TDAQ, detector software, physics & combined performance groups
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Backup slides
Mixed LVL2 & EB nodes
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