Remote Participation in in Remote Participation physical experiments physical experiments Piroska Giese KFKI RMKI e-mail : giese@rmki.kfki.hu Yahoo ID : kfki_Piroska_Giese April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 1
Overview Overview � Introduction � Remote Participation in Fusion Motivation, Methods, Tools � Remote Participation Technical Measures 1. Remote Data Access 2.Remote Computer Access 3.Telecommunications – Tele-Collaboration 4.Network Connectivity 5.Support and Documentation � Summary � Links and References April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 2
Nuclear Fusion 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 f uels 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 April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 3
TOKAMAK – – “ TOKAMAK toroidal magnetic magnetic chamber chamber ” “ toroidal ” 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 JET T - J oint E uropean T orus JE - J oint E uropean T orus ( UKAEA ( UKAEA – – Culham Culham, UK) , UK) Parameters: Diameter 15 m High 12 m Plasma major radius 2.96 m Flat-top pulse length 20 s Wight of the iron core 2800 t Toroidal magnetic field 3.45 T Plasma current 3.2 – 4.8MA Heating power 25 MW April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 4
Inside the toroidal vacuum vessel, showing the Plasma (the high of the vessel: 4,2 m) April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 5
The JET JET Pulse Cycle Pulse Cycle The Pulse preparation Futher online/offline/remote Analysis offline Control setup Diagnostic setup online Intershot Data Display Analysis online/offline Countdown online online Data Storage 4TB~55000 pulse Data collection Pulse online 25 / day 1 GB / pulse April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 6
JET computer system 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 April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 7
Remote Participation in Remote Participation in Fusion Fusion April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 8
Remote Participation in Fusion 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 E , BMGE) RMKI, KFKI AEKI , EU URATOM/HAS RATOM/HAS (KFK (KFKi i RMKI, KFKI AEKI BMGE) April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 9
European Magnetic Fusion Centres Centres European Magnetic Fusion New (Budapest) New (Prague) New (Bucharest) April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 10
RP - - Motivation Motivation RP � 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 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 » April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 11
RP Methods RP Methods The RP project includes five subjects: The RP project includes five subjects: 1. Remote Data Access – transfer of data across the web 2. Remote Computer Access – log in remotely to computers 3. Telecommunication – Office, Control Rooms and Seminars 4. Network Connectivity - best use of European Networks 5. Support and Documentation No ready- -to to- -use solution use solution No ready April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 12
RP Working Methods RP Working Methods The subjects are handled by four The subjects are handled by four working methods: working methods: - Feasibility Studies - Specifications - Purchase and Commissioning - Organisation of Support. • C Comprehensive omprehensive Data Base established of Data Base established of “ “desires desires” ”. . • • Work at JET supported by the UKAEA • Work at JET supported by the UKAEA- -Operator Operator • Specific Work in the Associations by Specific Work in the Associations by “ “Notification" contracts. Notification" contracts. • • Formation of topical Formation of topical “ “Study Groups Study Groups” ” for particular issues. for particular issues. • April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 13
RP Tools RP Tools Aim: “Fusion- -Standard” RP Toolkits Standard” RP Toolkits Aim: “Fusion 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 ) April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 14
RP Technical Project RP Technical Project Started in 2000 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 April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 15
Remote Participation Remote Participation Technical Measures Technical Measures April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 16
1. Remote Data access - - RDA RDA 1. Remote Data access The JET- -RDA client/server system makes JET's RDA client/server system makes JET's The JET scientific databases available over the Internet. scientific databases available over the Internet. � Requires Client Access Program and support Unix, PC, Mac, Linux � Requires reasonable network bandwidth typical 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 April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 17
RDA structure - - overview overview RDA structure � An extension of IIS web server running on Windows � Uses HTTP and NetCDF � Requires username/password April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 18
2. Remote Computer access - - RCA RCA 2. Remote Computer access � Remote log on to a distant computer 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 Widely used for many years . � � EFDA JET Policy EFDA JET Policy - - Remote Collaborators can Remote Collaborators can � have the same remote platform as within a have the same remote platform as within a JET Office. JET Office. internal firewalls, protocols and passwords control � Security issues are Security issues are the the paramount aspect in paramount aspect in � the chosen solution (s). (s). the chosen solution April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 19
RCA Imlementation Imlementation RCA � There are a number of Windows server running CITRIX Metaframe � Remote clients use CITRIX ICA client ( I ndependent C omputer A rchitecture) – Available for most platform – High performance over slow links user configuration is required April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 20
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