1 / 11

ILC DAQ issues

ILC DAQ issues. By P. Le Dû. Patrick.le-du@cea .fr. Data Flow. Software Trigger concept  No hardware trigger !. Read-Out Buffer. Detector Front End. up to 1 ms active pipeline (full train). Sub- Detectors FE Read-out

griffith-smith
Download Presentation

ILC DAQ issues

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ILC DAQ issues By P. Le Dû Patrick.le-du@cea.fr ILC Trigger & DAQ Issues -

  2. Data Flow Software Trigger concept  No hardware trigger ! Read-Out Buffer Detector Front End up to 1 ms active pipeline (full train) Sub-Detectors FE Read-out Signalprocessing – digitization, no trigger interrupt Sparcification,cluster finding and/or data compression Buffering Dead time free 1 ms 3000 Hz 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) Network Processor Farm(s) Few Hz 1 MBytes Average event size 200 ms Monitoring & on-line processing Few sec Storage Data streams S1 S2 S3 S4 Sn ILC Trigger & DAQ Issues -

  3. ILC DAQ conceptual (GLD) Architecture 5K 1 G 5 M 2.6 M 9215K 4568 K 12K VFD Machine TPC ECAL MUON VTX SiT HCAL 10k 5MB 1MB 20 MB 3 MB 1 MB 110 MB Detector Buffering (per bunch train in Mbytes/BT = 140 MB/s) Links Event manager & Control Event building Network 10-20 Gbit/sec Processor farm (one bunch train per processor) P P P P P P P P P P P P P P P P Select Bunch Of Interest (200 Hz) Data Steams Logger and Mass Storage 1GB/s = 100 PB/year ILC Trigger & DAQ Issues -

  4. About systems boundaries …..moving due to !  evolution of technologies,sociology ….. NEW ! Subdetectors FE Read Out Signal processing Local FE Buffer Machine Synchronization Detector feedback Beam BT adjustment Global Detector Network (worlwide) • Detector Integration • Remote Control Rooms (3?) • Running modes • Local stand alone • Test • Global RUN • Remote shifts • Slow control • Detector Monitoring • Physics & data analysis (ex On- Off line) • Farms • GRID … • Final Data storage Uniform interface Full Integration of Machine DAQ In the data collection system Read out NodePartitionning (physical and logical) Data Collection (ex on-line) Bunch Train data collection from Buffer RO Bunch Of Interest selection SW trigger & algorithms Event Building Control - supervisor On line Processing Global calibration ,monitoring and physics Local (temporary) Data logging (Disks) ILC Trigger & DAQ Issues -

  5. Somes Issues To be discussed in specific meetings • Cosmic trigger ????? • Very useful during installation and debugging • Compatibility with power cycling ???? • Clock, machine synchronization and timing distribution • with experts from LHC ! (Ph. Farthouat) ILC Trigger & DAQ Issues -

  6. Current view of a uniform RO architecture Integration To be studied! Sensor technology Common/uniform Interface Local/Global Controls & Services Partition Running mode (Stand alone, test, RUN) Synchronization & machine interface Databases : Calibration & Monitoring …… • VTX • CCD • MAPS • DEPFET….. • TRK • Si • TPC • ECAL • Si W • Scint W • HCAL • Digital • Analog • Muon • RPC • Scint … • VFD On detector Very Front End Local Signal Processing and buffer Preampli Shaper Digitizer FPGA Local Data Management G D N Receiver Digital Processing MUX RO Buffer Global Detector Network Front End (On / Near detector) Read Out Node/Hub Dedicated ASIC and/or SOC* Commercial standard *System On Chip ILC Trigger & DAQ Issues -

  7. ILC ‘today’ Data Collection Network model Direct network accessFrom Detectors receiver receiver receiver Buffer Buffer Buffer FPGA FPGA FPGA Controls &Storage servers EVENT BUILDER NETWORK Multi Terabit/s Trigger Farms & Analysis Local/ worldwide Remote (GDN) On/Near Detector Front End  Data link(s) Services Run Control receiver Buffer Synchro Sub Detector Read-Out Node FPGA Proc Monitoring Histograms Local partition Networking Hub Event Display Config Manager Local/GlobalNetwork(s) Wordlwide! DCS Machine Bx BT feedback Databases Data collection Sw triggers Analysis Farm Mass storage Data logging ILC Trigger & DAQ Issues - ... NO On line – Off line boundary

  8. Trigger & Event Analysis COMPUTING MODEL Event Classification (HLT) Bunch train Software Trigger (equivalent to L1) using fast and/or simple information at the bunch level ON LINE • Complex signatures : • PFA • Missing Et, scalar Et • Invariant and transverse mass • separation … • vertices, primary and displaced • Selection: • Thresholding • Prescaling • “Intelligent formatting “ Bunch Train Processing (ex L1) • Simple signatures : • e/g , µ, taus ,Jet • Detector matching Bunch Of Interest & classification 200 ms Fast Analysis Stream Physics streams 200 Hz • Monitoring • Calibration • Alignements • Physics monitoring • “Gold Platted“ events • Physics samples • Machine • Infos Temporary storage Sec. Sn S1 S2 Database “Analysis” farm Hours Days Year Calibration Constants Sub-Detector performance Sample Prescale Compress Candidates Storage OFF LINE “Garbage” Final storage ILC Trigger & DAQ Issues -

  9. Computing and communication trends 1000Gbit/IN2 Mass storage Bandwidth 1Gbit/IN2 10Mbit/IN2 2015 ILC Trigger & DAQ Issues -

  10. Read Out evolution LHC --> ILC Subdetector Subdetector Digital Buffer CCTA Read Out Crate (VME 9U) Read Out Driver 92 AMC SLink 400 Robin (PCI) ROS (150 PCs) Read Out Buffer (3 ROBin) ATCA Module ATCA Crate Gbit Link to Gbe Switch (60 PCs) ILC Trigger & DAQ Issues -

  11. 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 ???? ILC Trigger & DAQ Issues -

More Related