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ITS Quality AssuranceITS Quality Assurance(& DQM)(& DQM)

P. Cerello, P. Christakoglou, W. Ferrarese, M. Nicassio, M.

Siciliano

ALICE OFFLINE WEEK – April 2008

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SummarySummary

ITS Offline QA Approach Status PlansITS QA code for the Online DQM StatusWhat’s Next…

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Offline QAOffline QA

Approach Minimize code duplication (SDD & SSD)

Code for QA & DQM in AliRoot amoreAgent to drive the DQM, which calls AliRoot DQM GUI in Amore

Online Monitoring Used during the last cosmic run

Build QA distributions on real Data

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SPD QASPD QA

Implementation status

Offline - ESD

Offline - Digits

Offline - RecPoints

Offline - RAW

Online - RAW

Comparison with

ref. data

Warnings

Code in SVN

Code implementati

on

Definition of

monitored objects

SOURCE

Online - RecP

READYIN

PROGRESSNOT

STARTED

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SPD QASPD QA

Implementation status

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SSD QASSD QA

Implementation status

Offline - ESD

Offline - Digits

Offline - RecPoints

Offline - RAW

Online - RAW

Comparison with

ref. data

Warnings

Code in SVN

Code implementati

on

Definition of

monitored objects

SOURCE

Online - RecP

READYIN

PROGRESSNOT

STARTED

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SSD QA - RAWSSSD QA - RAWSEvent type SSD data size SSD data

size/

DAQ data size

LDC map

SSD data

size per DDL

DDL map

• Data size distribution for each DDL

• Data size distribution for each LDC

• Occupancy as a function of the pair (Nladder,Nmodule)

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SDD QASDD QA

Implementation status

Offline - ESD

Offline - Digits

Offline - RecPoints

Offline - RAW

Online - RAW

Comparison with

ref. data

Warnings

Code in SVN

Code implementati

on

Definition of

monitored objects

SOURCE

Online - RecP

READYIN

PROGRESSNOT

STARTED

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SDD QA/DQMSDD QA/DQM

Module map for injector run

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SDD QA/DQMSDD QA/DQM

Cluster charge

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SDD QA/DQMSDD QA/DQM

Cluster Global coordinates

Layer 4

Layer 3

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SDD DQMSDD DQMSDD Amore/DQM GUI

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What’s Next?What’s Next?ONLINE DQM/QA SPD

Until now, stay with MOOD SDD/SSD

AMORE + AliRoot Improve the GUI Optimize the updating frequency (-> speed) Add long-term detector controls (SDDs)

– Drift speed vs time– Baseline vs time– …

Minimize the number of histograms… Exploit the improvements in the new AMORE version

– Custom time interval for update– New Subscribe procedure

AMORE improvements wishlist Update histograms dynamically ONLY when they are requested from a GUI agent

(minimize task load…)

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What’s Next?What’s Next?OFFLINE QA SPD/SDD/SSD

Improve the DataMaker implementation QA Checker implementation

– Define the reference distributions

• This is the difficult part

• The detector behaviour is not understood (yet)

• It can be implemented on simulated data, but it is meaningless (you get what you put…)

• Reference distributions should be blessed by the hardware people

– Implement the QA set of checks and provide the QA result

• Who does the SPD/SDD/SSD merging?