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1 CTP offline software status (Offline week) A.Jusko and R.Lietava

1 CTP offline software status (Offline week) A.Jusko and R.Lietava

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Page 1: 1 CTP offline software status (Offline week) A.Jusko and R.Lietava

1

CTP offline software status(Offline week)

A.Jusko and R.Lietava

Page 2: 1 CTP offline software status (Offline week) A.Jusko and R.Lietava

2CTP offline software status 07/07/2008

Outlook

• Naming scheme for ALICE trigger classes• CTP Configuration file for Partition (Run)• Counters for Cross section• Interaction record - CTP readout• Interaction record – online access• Trigger inputs - CTP readout

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3CTP offline software status 07/07/2008

Naming scheme

Proposal discussed with trigger and offline prepared by F.Antinori, see:http://aliceinfo.cern.ch/Offline/Activities/TriggerConvention/index.html

Basic elements:Descriptor = logical AND of trigger inputs and 2 L0functionsDetector cluster = group of detectors to be read-outBunch crossing mask = defines which BC in orbit are vetoedPast future protection = conditon imposed on the presence of triggers in the BC preceeding and following the trigger BCRare flag = defines rare classes, which have reserved special bandwidth

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4CTP offline software status 07/07/2008

Naming scheme for classes

• Scheme under discussion (for offline use):Scheme under discussion (for offline use):• C<descriptor code>-<bcm code>-<pf code>-<cluster code>-<rare flag>C<descriptor code>-<bcm code>-<pf code>-<cluster code>-<rare flag>• e.g.: e.g.:

C0SH1-B-NOPF-ALL-RC0SH1-B-NOPF-ALL-R

44

BX mask code

PF protection code

cluster code

rare class flag

descriptor code

Page 5: 1 CTP offline software status (Offline week) A.Jusko and R.Lietava

5CTP offline software status 07/07/2008

Config File: rxxxxx.rcfg

PARTITION: ALICE############################################INPUTS:# BC1 BC2 RND1 RND2 -special names for onboard #trigger generators#InName Det Level SignatureOrBCRNDvalue InpNum BC1 CTP 0 4799999 0RND1 CTP 0 52076 0VZERO V0 0 42 2 SPD_GFO SPD 0 20 4 ############################################# Interaction is any function of first 4 L0 inputs or RND1,RND2,BC1,BC2INTERACTIONS:INT1 ~(SPD_GFO | VZERO)INT2 VZERO ############################################# Check compatibility with parted# rcfg descriptor = parted descriptors+rnd+bcDESCRIPTORS:# L0 functions can be defined with the name: l0fxxxxl0fmb2 VZERO | SPD_GFO # descriptor = list of inputs and functions, always AND # between list items MB1_RND1 VZERO SPD_GFO RND1MB2_BC1 l0fmb2 BC1 EMPTY_RND1 RND1

Format not changed (yet) – naming conventions to be used

# Maximum of 6CLUSTERS:ALL 1 SPD SDD SSD TPC TRD TOF PHOS CPV HMPID MUON_TRK MUON_TRG PMD TRG FMD T0 V0 ZDC ACORDE EMCal############################################################### Maximum of 4PFS:NONE########################################################## Maximum of 4BCMASKS: NONE############################################################ HW number of cluster is in clustersCLASSES:# Name HW Descriptor Cluster PF BCM Prescaler All/RareMB1 01 MB1_RND1 ALL {NONE} {NONE} 10 1MB2 03 MB2_BC1 ALL {NONE} {NONE} 0 1PULSER 23 EMPTY_RND1 ALL {NONE} {NONE} 0 1

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6CTP offline software status 07/07/2008

Configuration file status

• Aliroot class written (Cvetan)• Send to OCDB

- via DAQ logbook

- via DCS FXS

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7CTP offline software status 07/07/2008

Counters data

• 6 counters per Trigger class necessary for cross section

• Maximum Data volume: (50 classes* 6+ time stamp) counters=305 words• Read 1 per min => 305*60=74 kB/hour (to allow for

RUN fragmentation and control counter overflow)

• Counters read viaVME at CTP CPU ( not part of ‘normal’ data flow)

• Data flow: - CTP -> DCS FXS ->SHUTTLE->OCDB

Page 8: 1 CTP offline software status (Offline week) A.Jusko and R.Lietava

8

123265 9 1 2 3 4 5 6 7 8 93431363 0 1204292441 6295160 0 0 0 0 01 0 0 0 0 0 0 0 0 0 0 0104 43 43 43 43 430 0 0 0 0 04 4 4 4 4 40 0 0 0 0 00 0 0 0 0 00 0 0 0 0 0 3723686 0 120429467 623556

versionrun #ofclasses listofclassesOrbit Periodcounter secs usecsL0before L0after L1b L1a L2b L2a1 0 0 0 0 0 0 0 0 0 0 0104 43 43 43 43 430 0 0 0 0 04 4 4 4 4 40 0 0 0 0 00 0 0 0 0 00 0 0 0 0 0 3723686 0 120429467 623556

Counters data format

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9CTP offline software status 07/07/2008

versionRun #ofclasses listofclassesOrbit Periodcounter secs usecsL0before L0after L1b L1a L2b L2aOrbit Periodcounter secs usecsL0before L0after L1b L1a L2b L2a...

Counters data format

143357 1 1 10623527 0 1215243845 558137906491822 126163588 126163585 126163585 126163582 126163582 10855234 0 1215243866 162760906566888 126235112 126235109 126235109 126235106 126235106 11532829 0 1215243926 418087906786409 126454633 126454630 126454630 126454626 126454626 12210435 0 1215243986 674413907005933 126674157 126674154 126674154 126674151 126674151 12888041 0 1215244046 930743907225458 126893682 126893678 126893679 126893675 126893675 12896317 0 1215244047 666719907228139 126896358 126896355 126896355 126896352 126896352

Run43357 (just 1 class)

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10CTP offline software status 07/07/2008

Counters data status

• File format defined• Aliroot class written (Cvetan)• CTP dim server part implemented • CTP client part implemented• Full chain tested from February 08• Todo: error management

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11CTP offline software status 07/07/2008

Interaction records

• Interaction = 2 different interactions as two independent functions of (first) 4 L0 inputs are to be defined

• Interaction record = list of interactions in an ORBIT, up to 254 interactions per ORBIT

• For each DAQ event the interaction records from 2 ORBITS before and 2 ORBITS after are to be added to the event trigger data => Interaction records part of ‘normal’ data stream

• Full stream recorded also by DAQ

Aim: to have full interaction history ± 88 μs for every event recorded by DAQ

IR to event stream is being implemented by Klaus

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12CTP offline software status 07/07/2008

Interaction record – online access

• IR online access necessary for

- beam structure monitoring

- bunch crossing luminosity

- low rate inputs alignment • DAQ: Sylvain, Klaus, CTP: Ivan Kralik• Tested in lab• To be tested in ACR

Page 13: 1 CTP offline software status (Offline week) A.Jusko and R.Lietava

13CTP offline software status 07/07/2008

Trigger inputs – CTP• Triger inputs (L0 24+L1 24+L2 12) are added

to CTP readout by firmware (8+5 words)• Software development: to extract them from raw

data

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14CTP offline software status 07/07/2008

Summary

• Configuration file (Partition); ok• Counters – Cross section; - error managment• Interaction record – CTP readout; in progress

- DAQ-CTP debug session in ACR necessary• Interaction record – online; in progress• Trigger inputs – CTP : ok• Implement xsection calculation in aliroot

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15CTP offline software status 08/04/2008

Back up

Page 16: 1 CTP offline software status (Offline week) A.Jusko and R.Lietava

16CTP offline software status 08/04/2008

Naming conventions - detectors

Detector Character

Acorde A

BPTX B

Reserved C

Reserved D

TRD H

TPC L

MTRG M

TOF O

PHOS P

RTG R

SPD S

T0 T

V0 V

ZDC Z

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17CTP offline software status 08/04/2008

Inputs, Descriptors, Bunch Crossing mask, Past Future protection

• Input = n<3-char code>

n – trigger level 0,1,2

2nd char = detector

Example: 0SH1 – level 0 , SPD high multiplicity 1 trigger

• Desxriptor = DXXXX

- minimum 5 chars

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18CTP offline software status 08/04/2008

Configuration: Load/Start of Run

ECS

TRIGDB

CTPproxy

LoadPartition(name.cfg)

DAQ logbook

rxxxx.rcfg

rxxxx.rcfg

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19CTP offline software status 08/04/2008

Configuration: End of Run

OCDB

DCS FXS

SHUTTLE

TRIGDBECS

CTPproxy

STOPPartition(runnum)

CTPDIM

server

xsecDIMclient

Stoprun

rxxxx.rcfg

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20CTP offline software status 08/04/2008

Counters: Start of Run

ECS

CTPproxy

STARTPartition(runnum)

Open file (<7)

CTPDIM

server

xsecDIMclient

Startcounters

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21CTP offline software status 08/04/2008

Counters: End of Run

ECS

DCS FXS

CTPproxy

STOPPartition(runnum)

Close file

CTPDIM

server

xsecDIMclient

Stopcounters Shuttle

OCDB

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22CTP offline software status 08/04/2008

Counters data format

1st line = ‘version’

2nd line = ‘run number’ ‘num of classes’ ‘list of classes’

3rd line = ‘1st reading’

n-th line=‘(n-2)-th reading’

EOF

reading:

1st line=time stamp (4 words):ORBIT (24 bits) ‘Period counter’ (28 b) ‘seconds from epoch’(32 b) msecs(32 b)

2nd line = 1st class counters: L0before,L0after,L1before,L1after,L2 before,L2 after

(num of classes+1)-th line= last class counters: L0b,L0a,L1b,L1a,L2b,L2a

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23CTP offline software status 08/04/2008

Cross section and Luminosity

)(tLdt

dN

T

dttLTN )()(

• if you know L, you can calculate σ• if you know σ, you can calculate L

CTP counters provides information about the number of interactions N(ΔT)

http://epweb2.ph.bham.ac.uk/user/pedja/alice/::CTP preliminary design review; Cross section calculation

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24CTP offline software status 08/04/2008

Trigger Class Logic and Counters

LX Trigger input Delayed Class L(X-1)

Class LX Trigger before vetoes

32 bits

Counter NXb

VME

32 bits

Counter NXa

VME

Class LX Trigger after vetoes

Class LX Trigger

LX Trigger Condition

LX Trigger Vetoes

50 circuits

X = [0,1,2]

Ldt

N

N

N

N

N b

a

b

a

bclass 0

0

1

1

2

• σclass - uncorrected cross section for class ‘class’• NXa,NXb – counters at level X=[0,1,2] before and after vetoes (see picture). Formula assumes counters are cleared at the beginning• L – luminosityhttp://epweb2.ph.bham.ac.uk/user/lietava/alice.html Offline procedure for the cross

Section calculation

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25CTP offline software status 08/04/2008

L0 trigger input

Scaled-down BC

Random trigger

4

2

2

Look-up Table 16x1

(1 to 4)

Figure 3.9 Generation of Interaction signals

Sel

ecto

r

2 Select Interaction A

Interaction 1

L0 trigger input

Scaled-down BC

Random trigger

4

2

2

Look-up Table 16x1

(1 to 4)

Sel

ecto

r

2 Select Interaction B

Interaction 2

L0 trigger input 4 Look-up Table

16x1 (1 to 4)

Interaction Test

CTP Preliminary Design Review,http://www.ep.ph.bham.ac.uk/user/pedja/alice/

Interaction signals logic

2 interactions can be defined

Interaction: any logical function of 4 L0 inputs

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26CTP offline software status 08/04/2008

CTP data to ESD

Trigger and cluster mask or classes in ‘normal’ language as in config file