1. Emanuele Leonardi PADME General Meeting - LNF 17-18 January 2017
TDAQ & Computing
Emanuele Leonardi
PADME General Meeting - LNF January 2017

2. PADME on-line computing model
Target
32ch
FADC
Spectrometer Veto
192 ch
FADC
High Energy Positron
Veto 32ch
FADC
ECAL
616 ch
FADC
SAC
49 ch
FADC
TPix
65536 ch
TBD
L1 DAQ
1 process per DAQ board
L0 DAQ
1 process per DAQ board
ADC zero suppression (?)
Trigger Distribution System
BTF Beam
Cosmics
SW/Random
L1 DAQ
Event build
Temporary disk buffer
Neutral Filter (Inv) 1 or more ECAL clusters
Charged Filter (Vis) 2 or more tracks
RAW data
Trigger signal
Data flow
Central Data Recording Facility
CNAF (+LNF?)
PADME experiment site
PADME on-line computing model
18/01/2017
E. Leonardi - PADME G.M. - TDAQ & Computing 2

3. DAQ data rates
Detector
Channels
ADC boards
DAQ in
MB/s
DAQ out
RAW data
GB/d
TB/365d
Raw event
KB/event
Target 32 1
2.6
1.26
109 40
24.6
Calorimeter
616 20
52.8
2.70
234 85
SAC 49 2
5.3
1.08 93 34
21.1
E veto 96 3
7.9
0.60 51 19
11.6
P veto
1.31
113 41
25.6
HEP veto
1.15
100 36
22.5
TimePix
65536 -
18.8
1.50
130 47
29.3
Total
919 30
97.9
9.60
830
303
187.5
Output estimates assume that zero-suppression is active,
include trigger ADC samples (25%) and a 1% autopass stream (10%),
and do not include ROOT data-compression factor (testbeam: ≈50%)
18/01/2017
E. Leonardi - PADME G.M. - TDAQ & Computing

4. 2017 Milestones – On-line HW
Acquire on-line HW
2 L0 servers
2 L1 servers with storage (~40TB)
2 Network switches
Rack and cabling
Define UPS for experimental area (computing, electronics, HV)
Create on-line infrastructure
Define location of L0/L1
Define realistic count of network ports needed
Servers, trigger, DCS, sensors, …
Lay out cabling
Create 10Gbps link to LNF-IT
18/01/2017
E. Leonardi - PADME G.M. - TDAQ & Computing

5. 2017 Milestones – On-line SW
Define production DAQ procedures
Define main DAQ strategy
Now: each ADC board is acquired asynchronously
Can we use a trigger-oriented DAQ (all boards acquired after each trigger)?
Multi-server RunControl
Integrate trigger information
Integrate TimePix3 data stream
Verify event merger with >2 ADC boards
How do we merge TimePix3 data?
18/01/2017
E. Leonardi - PADME G.M. - TDAQ & Computing

6. E. Leonardi - PADME G.M. - TDAQ & Computing
2017 Milestones - Trigger
Create Trigger/Clock infrastrurcture
Preliminary requirement for the PADME L0TP are defined
Deeper understanding of V1742 board necessary
Needs dedicated man power to start implementation studies and project soon.
Is an evaluation board+analog Mezzanine suited for the PADME L0TP?
18/01/2017
E. Leonardi - PADME G.M. - TDAQ & Computing

7. E. Leonardi - PADME G.M. - TDAQ & Computing
2017 Milestones - GRID
Port PADME SW to the GRID
Install padme-fw to CVMFS
Verify interaction with standard G4/ROOT libraries
Enable PADME support at selected sites
LNF, CNAF, Sofia, Roma1…
Create VO roles, register production/standard users
Set up automatic data transfer LNF → CNAF
CNAF already accepting PADME data (manual or automatic transfer)
Create GRID-interfaced transfer server at LNF
Allocate GRID/off-GRID CPU power at LNF Tier1
Define utilization of KLOE tape library at LNF
18/01/2017
E. Leonardi - PADME G.M. - TDAQ & Computing

8. E. Leonardi - PADME G.M. - TDAQ & Computing
2017 Milestones - Software
Finalize MC digitization
Define digi structure and digitization procedure for all detectors
Verify processing times/data output
Release Reconstruction SW
Finalize infrastructure
Create reconstruction example
Define reconstruction procedures
18/01/2017
E. Leonardi - PADME G.M. - TDAQ & Computing

9. 2017 buying list 2 L0 servers (HP Proliant or Dell PowerEdge) 10-15K€
2 L1 servers (Dell PowerEdge) K€
2 Network Switches (HPE 5130) K€
Rack & cabling K€
All HW to be ordered before summer
18/01/2017
E. Leonardi - PADME G.M. - TDAQ & Computing