ILC Trigger & DAQ Issues - 1 ILC DAQ issues ILC DAQ issues By P. Le Dû [email protected]

ILC Trigger & DAQ Issues - ILC Trigger & DAQ Issues - 11

ILC DAQ issuesILC DAQ issues

By P. Le Dû

[email protected]

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Software Trigger concept Trigger concept No hardware trigger !No hardware trigger !

Sub-Detectors FE Read-outSignal processing – digitization, no trigger interrupt

Sparcification,cluster finding and/or data compressionBuffering

Sub-Detectors FE Read-outSignal processing – digitization, no trigger interrupt

Sparcification,cluster finding and/or data compressionBuffering

Data Collection is triggered by every train crossing

Trigger :Software Event Selection using partial information of a complete train (equivalent to L1)

Select ‘Bunches Of Interest’Event classification according to physics, calibration &

machine needs (HLT)

Data Collection is triggered by every train crossing

Trigger :Software Event Selection using partial information of a complete train (equivalent to L1)

Select ‘Bunches Of Interest’Event classification according to physics, calibration &

machine needs (HLT)

Monitoring & on-line processing Monitoring & on-line processing

S1 S2 S3 S4 Sn

1 ms

200 ms

Few sec

Data streams

Read-OutBuffer

Network

DetectorFront End

ProcessorFarm(s)

Storage

3000 Hz

Few Hz1 MBytes Average

event size

Data Flow

up to 1 ms active pipeline

(full train) Dead time free


ILC DAQ conceptual (GLD) Architecture

VFD VTX ECALTPC HCAL MUON

P PPPP PPPP PPPPP P P

Data Steams Logger and Mass Storage

Event buildingNetwork

10-20 Gbit/sec

Processor farm (one bunch train per processor)

Event manager & Control

Detector Buffering (per bunch train in Mbytes/BT = 140 MB/s)

Links

Select Bunch Of Interest (200 Hz)

SiTMachine

1 G 2.6 M5 M5K 4568 K 12K9215K

10k 5MB 1MB 110 MB 20 MB 3 MB 1 MB

1GB/s = 100 PB/year


About systems boundaries …..moving due to !

evolution of technologies,sociology …...Subdetectors FE Read Out

Signal processingLocal FE Buffer

MachineSynchronization

Detector feedbackBeam BT adjustment

Data Collection (ex on-line)Bunch Train data collection from Buffer RO

Bunch Of Interest selectionSW trigger & algorithms

Event BuildingControl - supervisorOn line Processing

Global calibration ,monitoring and physicsLocal (temporary) Data logging (Disks)

Full Integration of Machine DAQ

In the data collection system

NEW !

Global Detector Network

(worlwide)Detector IntegrationRemote Control Rooms (3?)– Running modes

Local stand alone Test Global RUN

– Remote shiftsSlow controlDetector Monitoring

Physics & data analysis Physics & data analysis (ex On- Off line)(ex On- Off line)

– FarmsFarms– GRID …GRID …

Final Data storageFinal Data storage

Read out Node Partitionning

(physical and logical)

Read out Node Partitionning

(physical and logical)

Uniform interface


Cosmic trigger ?????Cosmic trigger ?????– Very useful during installation and debuggingVery useful during installation and debugging– Compatibility with power cycling ????Compatibility with power cycling ????

Clock, machine synchronization and timing Clock, machine synchronization and timing distribution distribution – with experts from LHC ! (Ph. Farthouat)with experts from LHC ! (Ph. Farthouat)

Somes Issues

To be discussed in specific meetings


Current view of a uniform RO architecture

PreampliShaperDigitizer

VTXCCDMAPSDEPFET…..

TRKSiTPC

ECALSi WScint

W

HCALDigitalAnalog

MuonRPCScint …

VFD

Sensor technology

FPGA

ReceiverDigital Processing

MUX RO Buffer

LocalData

Management

GDN

Local/Global Controls & ServicesPartitionRunning mode (Stand alone, test, RUN) Synchronization & machine interface Databases : Calibration & Monitoring ……

Integration To be studied!

On detectorVery Front End

Local SignalProcessing

andbuffer

Common/uniformInterface

Front End(On / Near detector)

Commercial standardDedicated ASIC and/or SOC*

Read Out Node/Hub

*System On Chip

GlobalDetectorNetwork


ILC ‘today’ Data Collection Network ILC ‘today’ Data Collection Network modelmodel

Run Control

MonitoringHistograms

Event Display

DCS

Databases

...

AnalysisFarm

Mass storage Data logging

ConfigManager

Local/worldwide

Remote(GDN)

Synchro

NO On line – Off line boundary

Local/Global Network(s)Wordlwide!

Machine BxBT feedback

Local partition

Data collectionSw triggers

Sub DetectorRead-Out

Node

FPGA

receiver Buffer

FPGA

receiver Buffer

FPGA

receiver Buffer

Proc

receiver Buffer

Data link(s) Services

Networking Hub

On/Near Detector Front EndOn/Near Detector Front End

FPGADirect network accessFrom

Detectors

Trigger Farms & Analysis

Co

ntr

ols

&S

tora

ge

se

rve

rs

EVENT BUILDER NETWORKMulti Terabit/s


Trigger & Event Analysis COMPUTING MODEL

Sec. Temporary storage

•Monitoring •Calibration•Alignements

• Physics monitoring•“Gold Platted“ events• Physics samples

Bunch TrainProcessing

(ex L1)

Database

“Garbage”Final storage

CandidatesStorage

Calibration ConstantsSub-Detector performance

“Analysis” farm “Analysis” farm

SamplePrescale

Compress

Fast Analysis Stream Physics streams

200 ms

Hours

Days

Year

S1S1 S2S2 SnSn

Bunch Of Interest & classification

Simple signatures : e/g , µ, taus ,Jet •Detector matching

Complex signatures :• PFA•Missing Et, scalar Et•Invariant and transverse mass•separation …•vertices, primary and displaced• Selection:•Thresholding•Prescaling•“Intelligent formatting “

Bunch train Software Trigger

(equivalent to L1)using fast and/or simple

information at the bunch level

•Machine Infos

Event Classification (HLT)ON LINE

OFF LINE

200 Hz


Computing and communication Computing and communication trendstrends

1000Gbit/IN2

1000Gbit/IN2

10Mbit/IN2

10Mbit/IN2

2015

1Gbit/IN2

1Gbit/IN2

Mas

s st

orag

e

Mas

s st

orag

eB

andw

idth

Ban

dwid

th


Read Out evolution LHC --> ILCRead Out evolution LHC --> ILCSubdetector

Read Out Crate(VME 9U)

Read Out Driver

Read Out Buffer(3 ROBin)

ROS(150 PCs)

Gbit Link to Gbe Switch (60 PCs)

92SLink

Subdetector

400 Robin (PCI)

AMC

ATCA Module

ATCA Crate

Digital Buffer

CCTA


What next

Common work with Machine CTRL group

–ATCA– GAN–(Slow) Controls

Look for EUDET 2 ???? Workplans– ATCA experience– Global (Test beam) Detector networking

Between DESY/CERN,FNAL/SLAC,KEK ????

Documents

ILC Trigger & DAQ Issues - 1 ILC DAQ issues ILC DAQ issues By P. Le Dû [email protected]