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DABCDABC D ata A cquisition B ackbone C ore 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 1 Work supported.

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Presentation on theme: "DABCDABC D ata A cquisition B ackbone C ore 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 1 Work supported."— Presentation transcript:

1 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 1 Work supported by EU RP6 project JRA1 FutureDAQ RII3-CT-2004-506078 Data Acquisition Backbone Core Jörn Adamczewski, Hans G.Essel, Nikolaus Kurz, Sergey Linev GSI, Experiment Electronics: Data Processing group Again: motivation and use cases Again: system design and achievments since July (Huelva) New: MBS application as example New: performance measurements (optional) To do

2 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 2 Driving forces for DABC 2004 → EU RP6 project JRA1 FutureDAQ* 2004 → CBM FutureDAQ for FAIR * RII3-CT-2004-506078 1996 → MBS future 50 installations at GSI, 50 external http://daq.gsi.de Use cases Detector tests FE equipment tests Data transport Time distribution Switched event building Software evaluation MBS event builder General purpose DAQ Data Acquisition Backbone Core Intermediate demonstrator Requirements build events over fast networks handle triggered or self-trigger front-ends process time stamped data streams provide data flow control (to front-ends) connect (nearly) any front-ends provide interfaces to plug in application codes connect MBS readout or collector nodes be controllable by several controls frameworks  Some use cases

3 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 3 PCIe FE Front end board: sampling ADCs, clock distribution Active Buffer board *: PCI express card PC ABB PCIe 2.5 GBit/s bi-directional (optical) link: data, clock Use case example: Frontend components test The goal: Detector tests FEE tests Data flow tests FE: Frontend board ABB: Active Buffer board * A.Kugel, G.Marcus, W.Gao, Mannheim University Informatics V

4 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 4 GE switch PC ABB PCIe DCB FE IB switch FE DC Front end board: sampling ADCs (4*4), clock distribution Data collector boards, clock distribution to FE Active Buffer board: PCI express card 8-20 PCs dual quad PC ABB PCIe *8 *4 Scales up to 10k channels, 160 CPUs bidirectional event building 2.5 GBit/s bi-directional (optical) link: data, clock 2.5 GBit/s data links Gigabit Ethernet The goal: Investigate critical technology Detector tests Replace existing DAQ FE: Frontend board DC: Data combiner board ABB: Active Buffer board GE: Gigabit Ethernet IB: InfiniBand MBS: MultiBranchSystem MBS Use case example: Frontend components test

5 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 5 input event builder PC archive MBS frontend DABC Use case example: simple MBS TCP input Triggerbus

6 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 6 input event builder input event builder GE PC GE analysis archive PC GE: Gigabit Ethernet MBS frontend sender DABC Use case example: complex MBS TCP Triggerbus  DABC structure

7 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 7 data input sorting tagging filter analysis data input sorting tagging filter analysis IB PC GE analysis archive PC GE: Gigabit Ethernet IB: InfiniBand frontend DataCombinerr frontend other frontend Readout scheduler DABC DABC design: global overview  DABC data flow

8 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 8 DABC design: Software objects of data flow engine Device Transport Central data manager Memory pools DABC Module port process Transport Device PCIboard Module manager File A module processes data of one or several data streams. Data streams propagate through ports, which are connected by transports and devices Bufferqueue

9 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 9 DABC design: Software objects of data flow engine DABC Module port DABC Module port process Device Transport Device Transport Network Module manager locally (by reference) A module processes data of one or several data streams. Data streams propagate through ports, which are connected by transports and devices Central data manager Memory pools Bufferqueue

10 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 10 DABC design: Threads and synchronization DABC Module MainLoop ProcessCommand ActionEvent manager Module thread Command Device thread Transport & Queue A device, i.e. socket device controls one port (transport). Once a queue buffer is filled, the transport signals the ActionEvent manager, which in turn calls the MainLoop function of the associated module, or If MainLoop was waiting for resource or buffer, it continues. Commands are synchronized with the data flow through the ActionEvent manager ActionEvent manager Recource granted

11 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 11 Node XDAQ Executive (process, addressspace) Web server (SOAP), DIM** server XDAQ Application (thread), infospace DABC Core (threads) DABC design: XDAQ* Infrastructure * Standard DAQ framework for LHC CMS experiment Orsini, Gutleber http://xdaqwiki.cern.chhttp://xdaqwiki.cern.ch ** DIM: Distributed Information Management System, CERN DABC core decoupled from XDAQ environment!

12 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 12 DABC design: Controls & monitoring communication XDAQ Executive (process, addressspace) Web server (SOAP) DIM client: Java GUI LabView GUI EPICS GUI SOAP client: Java GUI Infospace* XDAQ Application Modules command queue DABC Core DIM server State machine Web browser GRIDCC * Infospace: remotely accessible parameters DABC core decoupled from XDAQ environment!  MBS connection

13 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 13 MBS topologies Readout 1 Readout n Triggerbus TCP Eventbuilder 1 Eventbuilder m Readout Eventbuilder Timebus TCP Timesorter Eventbuilder Readout Triggerbus Eventbuilder Readout Eventbuilder Monitor (analysis) Archive, RFIO Memory mapped bus n x m multiple EBs Time stamped (20 ns) EB hierarchy EB data transport ControlNode TCP < 20 MByte/s

14 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 14 MBS example topology Trigger Readout ADC Trigger Readout ADC Trigger Readout ADC Trigger Readout ADC Network Eventbuilder Detector Crates Multi Branch System GSI Standard Triggerbus

15 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 15 MBS node control and monitor External control asynchronous DAQ status Dispatcher Task commands (text) messages (text) Task Messageserver Statusserver asynchronous on request MBS node Task command thread working thread message thread Commands handled by threads Execution maybe in working thread Message thread maybe not needed Memory DIM server publish

16 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 16 MBS GUI (monitor)

17 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 17 Buffer2 (full) Buffer1 Slots MBS Readout Sender Trigger Event interrupt Buffer header Item header Item data (subevent) Item data Poll/yield TCP Trigger type Local event counter not in subevent Copy/send MBS data channel to DABC, first idea Subevent pipe DABC (Trigger, counter) Task

18 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 18 MBS data channel to DABC, as implemented Readout Collector Transport DABC Buffers Subevent pipe Readout Subevent pipe

19 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 19 General upgrades Large buffers (up to now 32K limit) in MBS. Large buffers in LMD files. DABC specific mode MBS transport in DABC mode blocks, if no DABC is connected. MBS transport sends variable sized buffers. Using large buffers and one buffer per stream: no event spanning. New LMD file format No buffer structure. File header, data elements, index table (random access). No size limit ( > 2 GB). Supported by event API. To do –Java based MBS GUI upgrade to integrate into DABC GUI (DIM) –Event server in DABC MBS Upgrade for DABC event builder  MBS application in DABC

20 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 20 input event builder PC archive MBS frontend DABC DABC: Local event building for MBS TCP input Triggerbus

21 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 21 Device Transport DABC Module port Combine Transport Device MBS File Transport Device MBS port DABC: Local event building for MBS

22 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 22 DABC application: Local Mbs event builder MbsRead MbsRead (port) Connect MBS transport Register port GetBufferSize () Return buffer size Read (buffer) Read header Read data Return ~MbsRead () Disconnect MBS MbsFrontend MbsFrontend () Create commands Register parameters CreateTransport (port) Create MbsRead DABC Device DABC Transport MbsCombiner MbsCombiner () Create commands Register parameters Create ports (n x input, 1x output) MainLoop () Wait input port 1...n Get empty buffer Loop: Add subevent ref. to buffer Size > max? Put buffer to port Return EndLoop ~MbsCombiner () MbsStore MbsStore (port) Register port Write (buffer) Filesize > max? close/open Write fragments to file ~MbsStore () Close last file DABC Module DABC Transport MbsFile MbsFile () Create commands Register parameters CreateTransport (port) Create MbsStore DABC Device Thread

23 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 23 input event builder input event builder GE PC archive GE: Gigabit Ethernet MBS frontend sender DABC TCP Triggerbus  DABC structure DABC: Network event building for MBS

24 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 24 Device Transport DABC Module port Formatter File Transport Device MBS port DABC: Network event building for MBS DABC Module port Sender port DABC Module port Receiver port DABC Module port Combiner port Second node Local or over network

25 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 25 DABC application: Mbs event builder over network I MbsCombiner MbsCombiner () Create commands Register parameters Create ports (1 x input, 1x output) MainLoop () Wait input port 1 Get empty buffer Loop: Add data ref. to buffer Size > max? Put buffer to port Return EndLoop ~MbsCombiner () BNetNetworkTransport NetNetworkTransport (port) Register port Write (buffer) Send fragments ~BNetNetworkTransport () DABC Module DABC Transport BNetNetworkDevice BNetNetworkDevice () Create commands Register parameters CreateTransport (port) () Create BNetNetworkTransport DABC Device Thread BNetSender BNetSender () Create commands Register parameters Create ports (1 x input, n x output) MainLoop () Wait input port 1 Put buffer to next output port ~BNetSender () DABC Module Thread Input as before Provided by DABC

26 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 26 DABC application: Mbs event builder over network II MbsEventBuilder MbsEventBuilder () Create commands Register parameters Create ports (1 x input, 1x output) MainLoop () Wait input port 1 Get empty buffer Build event from input list Put event to buffer Put buffer to port (file store) ~MbsEventBuilder () DABC Module Thread BNetNetworkTransport BNetNetworkTransport (port) Register port Read (buffer) Receive fragments ~BNetNetworkTransport () DABC Transport BNetNetworkDevice BNetNetworkDevice () Create commands Register parameters CreateTransport (port) Create BNetNetworkTransport DABC Device Thread BNetReceiver BNetReceiver () Create commands Register parameters Create ports (n x input, 1 x output) MainLoop () Wait for all input ports Add input buffers to output list Put list to output port ~BNetReceiver () DABC Module Thread  DABC setup Provided by DABC

27 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 27 DABC Setup Configuration via XML files ApplicationPlugins (entry point to application libraries) –Call application factories Application factory classes –CreateDevice –CreateModule –Device->CreateTransport ( Module->GetPort ) –ConnectPorts ( Module1->GetPort, Module2->GetPort ) –CreateMemoryPool State commands –Startup –Initialize –Run / Stop –Hold / Resume –Shutdown

28 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 28 DABC: Commands and parameters Commands Objects with command description (XML) and ProcessCommand function. Name string: / server / node / application / type.thread.name –server: DIM namespace –node: name:ID (port) –application: namespace::name:ID –type: DEV, MOD, POOL, PLUG –thread: name of module or device or... –name: command (description by related parameter record) Parameters Same name structure as above Parameter records Recognized by GUI, graphical presentation –Status –Rate –Histogram –Command description –and more

29 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 29 Java GUI DIM based, run time built from services  IB performance

30 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 30 DABC further tasks Achieved Infrastructure Data flow engine Very first (0.1) Java GUI PCI support MBS event building Final Programming Interface definitions Todo Controls, GUI Data formats Combiner/Time sort Event building Final Programming Interface implementation Final packaging MBS GUI Documentation

31 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 31 Resources and time People of data processing group H.G.Essel J.Adamczewski N.Kurz S.Linev People of controls group maybe one FTE People from CBM hopefully CBM requires in 2008 a data taking system Start with small system, grow on demand Preliminary controls NUSTAR ? In discussion MBS a first test bed

32 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 32 Network test performance 4x4 bidirectional

33 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 33 Optimized transfer (23 nodes at FZK), all to all Synchronization never overloads receivers, but gains 25% only! We thank Frank Schmitz, Ivan Kondov and Project CampusGrid at the Institute for Scientific Computing, Forschungszentrum Karlsruhe, for providing resources and support for the large-scale measurements.

34 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 34 Scaling of performance (FZK) Degration only with large buffers We thank Frank Schmitz, Ivan Kondov and Project CampusGrid at the Institute for Scientific Computing, Forschungszentrum Karlsruhe, for providing resources and support for the large-scale measurements.

35 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 35 Scaling of performance (Mainz) We thank Klaus Merle and Markus Tacke at the Zentrum für Datenverarbeitung der Johannes Gutenberg Universität, Mainz, for providing resources and support for the large-scale measurements.

36 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 36 Scaling of performance (Mainz) We thank Klaus Merle and Markus Tacke at the Zentrum für Datenverarbeitung der Johannes Gutenberg Universität, Mainz, for providing resources and support for the large-scale measurements.

37 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 37 plugin input DABC: Full event building example measurement 4*Readout Data generators combiner receiver sender Network builderanalysis 4 nodes, all to all 6 different modules Node

38 DABCDABC D ata A cquisition B ackbone C ore http://www-linux.gsi.de/~dabc/dabc/DABC.php 12.12.07 J.Adamczewski, H.G.Essel, N.Kurz, S.Linev 38 Dataflow engine and event building rate 4x4 nodes

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