Data Acquisition System for the TPC Sector Test

Data Acquisition System for the TPC Sector Test

Klaus Schossmaier

CERN EP-AID

ALICE TPC collaboration meeting

GSI, Darmstadt, Germany

2-3 June 2003

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

Setup in Hall 167

auxiliary

systems:

- gas

- cooling

- low voltage

- high voltage

gas vessel

readout

chamber

electronics

data acquisition

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

Readout close-up

Front End Cards (FEC)

Readout Control Unit

(RCU) in a PC

Inner Readout

Chamber

(IROC)

Data

Acquisition

System

(DAQ)

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

Present DAQ

RCU 1

Front-end bus (GTL) Local slow control (serial)

Ethernet

Online monitoring

http://mactpc01.cern.ch/~tpc

FEC128 CH

FEC128 CH

FEC128 CH

FEC128 CH

PCI

PC

LabView

PCI board from PLDA custom-made mezzanine card

Cosmic trigger: 1 event in about 4 minutesEvent size: 128*4*500*10 bits = 312 KB

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

Detector Data Link (DDL)

The DDL will be installed between the detectors and the front-end computers.

The DDL is an integral part of the ALICE data acquisition system.

The DDL provides up to 200 MB/s bandwidth. The DDL consists of three parts:

Destination Interface Unit (DIU): on the front-end computers connected via the RORC (pRORC or HLT-RORC)

Multi-mode optical fiber cable: to bridge up to 200 meters, full duplex LC connector

Source Interface Unit (SIU): on the detector electronics connected to the RCU (prototype 1, 2, 3)

DDL-SIU

DDL-DIU

PCRORC

detector electronics

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

DDL hardware

pcald09.cern.ch:- PII@300Mhz- 256 SDRAM- 2x 40 GB disk- Fast Ethernet- RH 7.3.2

DDL-SIU

Fiber cable

(5 meters)

DDL-DIU

with

pRORC

This system is ready for operation!

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

Planned DAQ with DDL

RCU 3

FEC128 CH

FEC128 CH

FEC128 CH

FEC128 CH

FEC128 CH

FEC128 CH

RCU 3

DDL-SIU

DDL-SIU

DDL-DIU

DDL-DIU

Fiber cables

Eth.

MonitoringArchiving

Web Access

PCIPCI

PCLinux

DATE v4.6FeC2

MOOD

RORC RORC

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

Towards the final DAQ

More realistic setup with respect to installations at Test Beams or at Point 2: Data stream over a long distance Electronics can be controlled remotely PC with LabView is not necessary High bandwidth upstream and downstream Scalable to more RCUs and FECs

Early integration of front-end electronics with theALICE data acquisition system All components are ready DAQ milestone #388 of ALICE

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

DATE

The Data Acquisition and Test Environment is the software framework of the ALICE DAQ.

It runs on Linux platforms. The latest release is V4.6 user’s guide available Well tested (test beams, data challenges) Services/Packages:

System configuration Run Control Readout for DDL Event Building Event Recording Messaging system Performance monitoring

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

DDL+DATE Performance

0

20

40

60

80

100

120

Bytes

MB

/s2x Xeon @2.4Ghz 2x Pentium III @600Mhz

2x Pentium III @1Ghz 2x Athlon MP 2200+

1x Pentium II @300Mhz

0

20000

40000

60000

80000

100000

Bytes

ev

en

ts/s

2x Xeon @2.4Ghz 2x Pentium III @600Mhz

2x Pentium III @1Ghz 2x Athlon MP 2200+

1x Pentium II @300Mhz

10.0 µs

12.5 µs

16.7 µs

25.0 µs

50.0 µs

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

FeC2

The DDL is capable to Control and Configure the Front-end electronics integration with the ECS

Protocols are defined for 4 basic transactions: Sending commands (19 bits information) Reading status (19 bits address, 19 bits reply) Sending data blocks (19 bits address, file to send) Reading data blocks (19 bits address, file to read)

Interpreter is implemented for executing scripts Example of a FeC2 script:

define THRESHOLDS /local/thresholds.data

write_block 0x600 THRESHOLDS

read_and_check_block 0x600 THRESHOLDS

stop_if_failed -1

write_command 0x1ff

stop

DDL-SIU

DDL-DIU

PCRORC

detector electronics

FeC2

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

Data Quality Monitor MOOD

- ROOT based

- Offline: files

- Online: DATE

z distance(no cluster finding)

Total charge

Event sizedistribution

Time projections

Using data of TPC sector test

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

Working steps

Installation of PCs with Linux and DATE: 1 PC with 2 DDLs for Hall 167 1 PC with 1 DDL for the TPC lab

Integration DATE DDL RCU in the TPC lab Stable data stream with high performance Control&configuration of the final RCU prototype via DDL and FeC2

Integration of the full DAQ chain in Hall 167 Installing the PC and the 2 DDLs Configuration Test runs Production runs Online Monitoring Analysis

TPC collaboration meeting, 2-3 June 2003

Klaus SchossmaierDAQ system for the TPC Sector Test

Summary

A planned DAQ setup by using the DLL for the TPC sector test in Hall 167 has been presented.

Hardware/software components of the new DAQ : Hardware:

DDL: SIU, DIU, fiber cables RORC: pRORC, HLT-RORC RCU: prototype 1, 2, 3 PC: Linux, disks, networking

Software: DATE: readout, recording, services FeC2: control/configure the front-end electronics MOOD: data quality monitoring

Online monitoring software can be reused Let’s start the work!