Remote Participation in physical experiments

1. Remote Participation in physical experiments Piroska Giese KFKI RMKI e-mail: giese@rmki.kfki.hu Yahoo ID: kfki_Piroska_Giese RoEduNet Conference

2. Overview • Introduction • Remote Participation in Fusion Motivation, Methods, Tools • Remote Participation Technical Measures • Remote Data Access • Remote Computer Access • Telecommunications – Tele-Collaboration • Network Connectivity • Support and Documentation • Summary • Links and References RoEduNet Conference

3. Nuclear Fusion The world energy needs increase! Nuclear Fusion is the energy producing process which takes place in the sun and stars (H is converted to He providing energy) For energy production on earth the most suitable reaction occurs between two nuclei - Deuterium and Tritium. The required temperature 100 Mill. deg. C fuels change its state from gas to PLASMA Fuels - plentiful in earth Deuterium – can be extracted from water Tritium - doesn’t occur naturally it will be manufactured from Lithium RoEduNet Conference

4. TOKAMAK – “toroidal magneticchamber” the most successful experimental fusion device for controlled fusion reaction the plasma is heated in a toroidal vessel and confined away from the vessel walls by magnetic field Parameters: Diameter 15 m High 12 m Plasma major radius2.96 m Flat-top pulse length 20 s Wight of the iron core2800 t Toroidal magnetic field 3.45 T Plasma current 3.2– 4.8MA Heating power25MW JET-Joint European Torus (UKAEA – Culham, UK) RoEduNet Conference

5. Inside the toroidal vacuum vessel, showing the Plasma (the high of the vessel: 4,2 m) RoEduNet Conference

6. The JET Pulse Cycle Pulse preparation online/offline/remote Futher Analysis offline Control setup Diagnosticsetup online Intershot Analysis online Data Storage 4TB~55000 pulse Data Display online/offline Countdown online Data collection online 1 GB/ pulse Pulse 25 / day RoEduNet Conference

7. JET computer system • Data collection,storage • Solaris system • Storage Tek Silo 230TByte • Analysis • Linux Cluster (Red Hat7.1) • 56 nodes: Athlon/Intel proc. • 13 Gflops/sec • JETNET local network • office computers • PC, Terminal & ICA Server • WEB service • Documentation • Remote Participation RoEduNet Conference

8. Remote Participation in Fusion RoEduNet Conference

9. Remote Participation in Fusion • 1957 – Euratom Treaty creating “ Fusion Associations • Traditionally high mobility and many inter-Association links • Pre-1998 RP is limited by both local politics and technology restrictions. • However many examples of inter-collaborations and especially joint work with the JET Joint Undertaking • 1999 establishment of EFDA. • Improved efficiency of resources required (human and material) . • Modern techniques make RP more viable. • 1999/2000/2001 “ User Meetings” define RP needs for EFDA-JET • 2000/2001 Creation of EFDA-JET RP Technical Project • Scientific exploitation of JET jointly by Task Forces from the more than 20 EFDA Associate laboratories. • Strong support by the JET “Operator” (UKAEA Culham Division) 2000-Association EURATOM/HAS (KFKi RMKI, KFKI AEKI, BMGE) RoEduNet Conference

10. New (Budapest) New (Prague) New (Bucharest) European Magnetic Fusion Centres RoEduNet Conference

11. RP - Motivation • Essential for a viable JET Scientific programme within the new framework. • Immediate needs driven by USER REQUESTS and/or existing utilities • Strong political backing – Busquin, Mitsos and EFDA – « prototype European Research Area »The subject is « à la mode » • Desire to reduce Mission Costs • Desire to create closer « European Fusion Community » • Desire to make more efficient use of existing resources and facilities – Investment Budget in Fusion >> Operational and manpower resources. Counter Arguments • Undermines Association Autonomy • Reduces human contact/interaction • Resources in Fusion are already too widely stretched (fear of closure of local facilities in favour of RP) • Requires too much « support » RoEduNet Conference

12. RP Methods The RP project includes five subjects: • Remote Data Access– transfer of data across the web • Remote Computer Access– log in remotely to computers • Telecommunication– Office, Control Rooms and Seminars • Network Connectivity- best use of European Networks • Support and Documentation No ready-to-use solution RoEduNet Conference

13. RP Working Methods The subjects are handled by four working methods: • Feasibility Studies • Specifications • Purchase and Commissioning • Organisation of Support. • Comprehensive Data Base established of “desires”. • Work at JET supported by the UKAEA-Operator • Specific Work in the Associations by “Notification" contracts. • Formation of topical “Study Groups” for particular issues. RoEduNet Conference

14. RP Tools Aim: “Fusion-Standard” RP Toolkits • Requirements: • platform-independent or at least multi-platform tools • Shareware or freeware solutions with source code access are strongly preferred • Internet-based Communications • Compatibility as far as possible with existing infrastructures (priority JET) RoEduNet Conference

15. RP Technical Project Started in 2000 • Two technical coordinators: • Volker Schmidt, Conzorcio RFX, Euratom-ENEA sulla fusione I-35127 Padova, Italy e-mail: Volker.Schmidt@ieee.org Yahoo Messenger ID:RFX_Volker_Schmidt • John A. How, Euratom-CEA, DRFC, CEA-Cadarache F-13108 Saint-Paul-Lez-Durance, France e-mail: how@cea.fr Yahoo Messenger ID: DRFC_John_How RoEduNet Conference

16. Remote Participation Technical Measures RoEduNet Conference

17. 1. Remote Data access - RDA The JET-RDA client/server system makes JET's scientific databases available over the Internet. • Requires Client Access Programand support Unix, PC, Mac, Linux • Requires reasonable network bandwidthtypical data transfers are 2Mb/s = 250kbaud/s = 16secs for 1Meg of 32bit data • Requires efficient Central data server(and tape recall) • Desirable to have some local data cache to avoid transfer of the same signal many times RoEduNet Conference

18. RDA structure - overview • An extension of IIS web server running on Windows • Uses HTTP and NetCDF • Requires username/password RoEduNet Conference

19. 2. Remote Computer access - RCA • Remote log on to a distant computer.Complements RDA approach. Only the screen is sent across the network, not the data. • Widely used for many years. • EFDA JET Policy - Remote Collaborators can have the same remote platform as within a JET Office.internal firewalls, protocols and passwords control • Security issues are the paramount aspect in the chosen solution(s). RoEduNet Conference

20. RCA Imlementation • There are a number of Windows server running CITRIX Metaframe • Remote clients use CITRIX ICA client(Independent Computer Architecture) • Available for most platform • High performance over slow links user configuration is required RoEduNet Conference

21. RCATwo-step Authentication • Remote CITRIX ICA clientsets up the • contact to CITRIX Metaframe server • JET remote accessusername/password • 2. SecurID token card atthe firewall • PIN code+SecurID card “token” • Logon to JET computers • - OfficePC network (Win2K) - Internal Web - Linux cluster - Solaris system JET local Username/password RoEduNet Conference

22. RCA – why is needed? • Remote execution of interactive tasks • Sun/Solaris (session leader tools, monitoring, diagnostics) • JAC (Submission of simulation/analysis codes) • Office PC systems (shared task force drives, staff on mission) • (ultimately) active remote control of equipments • Access to internal JET web Technical documentation, Shift rosters, Inventories, LOG files, etc • Remote system administration RoEduNet Conference

23. 3. Telecommunications Scenarios Tele-collaboration includes a wide range of arrangements: • Desktop dialogue:two scientists that want to discuss and share interactively documents on their desktops • Office-based Meetings:small groups communicate via audio and, possibly live video,interactively sharing documents on their desktop • Broadcast meeting: broadcasting only, without remote interaction– e.g. Science Meeting • Fully interactive “Multi-centre Meetings”:participantsin meeting rooms at different sites JET Task Force Meetings, Formal presentations • Remote Control Room Extension: • possibility to interact with the JET control room in real time • combination of teleconferencing, broadcasting, and remote computer access RoEduNet Conference

24. Tele-collaboration Toolkit (1) • Virtual Rooms Videoconferencing System • - Audio & Video • - Caltechdevelopment for LHC community • Multi-platform public domain software • (Windows, Unix, Linux,non-interactive version for MacOS ) • based on the concept of Virtual Meeting Rooms • based on Mbone tools: VICandRAT • interoperable with H.323 videoconferencing system • (MS “NetMeeting”, Intel “Internet Video Phone”) RoEduNet Conference

25. VRVS Web User Interface Others ?? MPEG QuickTime V4.0 Mbone Tools (vic, vat/rat,..) H.323 Collaborative Applications VRVS Reflectors (Unicast/Multicast) QoS Real Time Protocol (RTP/RTCP) Network Layer (TCP/IP) VRVS Model - Implementation RoEduNet Conference

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27. VRVS Reflectors RoEduNet Conference

28. Sceduler in VRVS RoEduNet Conference

29. Tele-collaboration Toolkit (2) Interactive Shared Desktop Tool VNC Result of a collaboration between Oracle and Olivetti developed by AT&T Virtual Network Computing • - VNCserver - VNCviewer client • - Multi-platform server, Viewer client is very small • VNC is a cheap alternativeto CITRIX ICA • Can be used to logon to JAC and Solaris system • Can be used either from a WEB browser or a standalone client utility • Secure ID authentication has to be implemented by the user • Normally VNC is used to provide users with remote access to their desktop. At JET is used to provide full X access by creating virtual X terminal via inetd service on a Solaris system RoEduNet Conference

30. JTV – JET Television On VNC based Web streaming • JTV – web browser/Java based image broadcast • 10 channels of live control room data • one channel low webcam view of the Session leader • one channel for the broadcast of sliedes for conference RoEduNet Conference

31. JTV Real-Time Screen Broadcast Utility RoEduNet Conference

32. Tele-collaboration Toolkit (3) Real-time dialog CHAT useful as self-documenting tool essential addition to teleconference during set-up public server replaces telephone calls Spaniel Chat private server secure Control room communication RoEduNet Conference

33. 4. Network Connectivity • Sufficient network connectivity is requiredthroughput, response time, reliability • All European fusion laboratories are connected through TEN-155 or GEANT 2.5GB/sButsome local connections are presently insufficient Network Monitoring is essential • A small study group (monitoring web sites) • Used desktop tools • Pingplotter - traceroute, store, accumulate, re-plot data • Qcheck - testing of network performance response time, throughput, availability • lost of packets for TCP, UDP, SPX, IPX • Future Issues • UnifiedNetwork Security • Internet Traffic Priorities • Virtual Private Network (VPN)? RoEduNet Conference

34. 5. Support and Documentation • Central Support at JET • Supports Task Force programme • Includes Local JET Facility Documentation on Internal Web • Excellent Europe Wide  EFDA-JET USERS WEB (restricted access) Includes major section on “Remote participation” • In the Associations • Active Users Group and Technical Contact Persons for RP • Support Teams in most laboratories • Some local documentation • Europe-Wide Organisation • Two Technical Coordinators for the EFDA-JET RP project • Central EFDA and ITER public web sites http://www.efda.org/ RoEduNet Conference

35. SummaryReferences, Links RoEduNet Conference

36. Summary “Shared-facility” mode since January 2000 • The « Remote Participation » Technical Infrastructure for European Fusion Research has been organised • JET is operating under the new shared-exploitation • scheme • approximately 300 scientists regularly use the RP • techniques for JET Work • Active Users Group and network of • Technical Contact Persons RoEduNet Conference

37. Summary (cont) • Many physicists are only periodic visitors to the JET site • Support of experiment sessions is shared between on-site and off-site staff • Data analysis is run (remotely) on JET-based computers and on computers at the partner laboratories • JET operation can be followed by remote observers • Scientists make use of teleconferencing in the widest sense • Remote Participation infrastructure does not replace the physical presence on the JET site • No remote experiment control RoEduNet Conference

38. Summary (cont) • The joint scientific exploitation of the JET Facilities could serve as a blueprint for the future shared exploitation of several other large experiments • JET EP (Extended Performance) Activities • ITER the first fusion device to produce thermal energy • International Collaboration: Canada, Europe, Japan, Russia • Experiment-based or scientific collaborations between other fusion research sites in Europe • Universities, other research organisations RoEduNet Conference

39. References and Links • The Euroatom Treaty of 1957 http://www.euroli.net/sectors/1/A/1957 http://www.fusion-eur.org/fusion • J. Pamela, JET under EFDA: Organisation and resent results 21st Symposium on Fusion Technology, Madrid, Spain, 11-15 September 2000 • 3rd IAEA Technical Committee Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research Padua TCM Conference, Italy, July 2001 http://tcm2001.igi.pd.cnr.it/ RoEduNet Conference

40. Links and References • JET: http://www.jet.efda.org/ • EFDA: http://www.efda.org/ • UKAEA Culham http://www.fusion.org.uk/ • ITER: http://www.iter.org/ • Citrix:http://www.citrix.com/ • VRVS: http://www.vrvs.org/ • VIC:http://www-nrg.ee.lbl.gov/vic/ • RAT: http://wwwmice.cs.ucl.ac.uk/multimedia/software/rat/ • VNC:http://www.uk.research.att.com/vnc/index.html • Pingplotter:http://www.nessoft.com/pingplotter/ • Yahoo Messenger:http://messenger.yahoo.com/ • Spaniel chat: http://www.searchspaniel.com RoEduNet Conference