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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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 1

Remote Participation Remote Participation in in physical experiments physical experiments

Piroska Giese KFKI RMKI

e-mail: giese@rmki.kfki.hu Yahoo ID: kfki_Piroska_Giese

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 2

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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 3

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 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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 4

TOKAMAK TOKAMAK – – “

“toroidal toroidal magnetic magnetic chamber chamber” ”

JE JET T-

  • J

Joint

  • int E

European

uropean T

Torus

  • rus

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

( (UKAEA

UKAEA – – Culham Culham, UK) , UK)

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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 5

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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 6

Pulse preparation

  • nline/offline/remote

Control setup Diagnostic setup

  • nline
  • nline

Futher Analysis

  • ffline

The The JET JET Pulse Cycle Pulse Cycle

Intershot Analysis Countdown

  • nline

Data Display

  • nline/offline

Data Storage 4TB~55000 pulse Pulse 25 / day Data collection

  • nline

1 GB / pulse

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 7

WEB service

Documentation Remote Participation

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
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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 8

Remote Participation in Remote Participation in Fusion Fusion

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 9

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

EU URATOM/HAS RATOM/HAS (KFK (KFKi i RMKI, KFKI AEKI RMKI, KFKI AEKI,

, BMGE)

BMGE)

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 10

European Magnetic Fusion European Magnetic Fusion Centres Centres

New New New

(Bucharest) (Budapest) (Prague)

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 11

RP RP -

  • Motivation

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 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 »

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 12

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 No ready-

  • to

to-

  • use solution

use solution

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 13

  • Feasibility Studies
  • Specifications
  • Purchase and Commissioning
  • Organisation of Support.
  • C

Comprehensive

  • mprehensive 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.

The subjects are handled by four The subjects are handled by four working methods: working methods:

RP Working Methods RP Working Methods

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 14

RP Tools RP Tools

Aim: “Fusion Aim: “Fusion-

  • Standard” RP Toolkits

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)

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 15

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

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Remote Participation Remote Participation Technical Measures Technical Measures

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 17

  • 1. Remote Data access
  • 1. Remote Data access -
  • RDA

RDA

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 The JET The JET-

  • RDA client/server system makes JET's

RDA client/server system makes JET's scientific databases available over the Internet. scientific databases available over the Internet.

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 18

RDA structure RDA structure -

  • overview
  • verview

An extension of IIS web server running on Windows Uses HTTP and NetCDF Requires username/password

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  • 2. Remote Computer access
  • 2. Remote Computer access -
  • RCA

RCA

  • 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 the chosen solution(s). (s).

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 20

RCA RCA Imlementation 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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 21

RCA Two Two-

  • step Authentication

step Authentication

  • 1. Remote CITRIX ICA client sets up the

contact to CITRIX Metaframe server JET remote access username/password

  • 2. SecurID token card at the firewall

PIN code+SecurID card “token” Logon to JET computers

  • Office PC network (Win2K)
  • Internal Web
  • Linux cluster
  • Solaris system

JET local Username/password

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 22

RCA RCA – – why is needed 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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 23

  • 3. Telecommunications Scenarios
  • 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”:

participants in 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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 24

Tele Tele-

  • collaboration Toolkit (1)

collaboration Toolkit (1)

Virtual Rooms Videoconferencing System Virtual Rooms Videoconferencing System

  • Audio & Video
  • Caltech development 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: VIC and RAT
  • interoperable with H.323 videoconferencing system

(MS “NetMeeting”, Intel “Internet Video Phone”)

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 25

VRVS Model VRVS Model -

  • Implementation

Implementation

Network Layer (TCP/IP) Network Layer (TCP/IP) QoS QoS VRVS Reflectors (Unicast/Multicast) VRVS Reflectors (Unicast/Multicast) Real Time Protocol (RTP/RTCP) Real Time Protocol (RTP/RTCP)

Mbone Mbone Tools Tools

( (vic vic, vat/rat,..) , vat/rat,..)

QuickTime QuickTime V4.0

H.323 H.323 MPEG MPEG

Others Others

?? ??

Collaborative Collaborative Applications Applications

VRVS Web User Interface VRVS Web User Interface

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VRVS Reflectors VRVS Reflectors

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Sceduler in VRVS Sceduler in VRVS

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Tele Tele-

  • collaboration Toolkit (2)

collaboration Toolkit (2)

V Virtual irtual N Network etwork C Computing

  • mputing

Interactive Shared Desktop Tool VNC Interactive Shared Desktop Tool VNC

Result of a collaboration between Oracle and Olivetti developed by AT&T

  • VNCserver - VNCviewer client
  • Multi-platform server, Viewer client is very small

VNC is a cheap alternative to 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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 30

JTV JTV – – JET Television JET Television

On VNC based Web streaming 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

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JTV Real JTV Real-

  • Time Screen Broadcast Utility

Time Screen Broadcast Utility

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Tele Tele-

  • collaboration Toolkit (3)

collaboration Toolkit (3)

Real Real-

  • time dialog CHAT

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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 33

4.

  • 4. Network Connectivity

Network Connectivity

Sufficient network connectivity is required

throughput, response time, reliability

All European fusion laboratories are connected through

TEN-155 or GEANT 2.5GB/s But some local connections are presently insufficient

Network Monitoring is essential 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

Future Issues

Unified Network Security Internet Traffic Priorities

Virtual Private Network (VPN) Virtual Private Network (VPN) ? ?

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 34

  • 5. Support and Documentation
  • 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/

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Summary Summary References, Links References, Links

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Summary 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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 37

Summary Summary (cont)

(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

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 38

Summary Summary

(cont) (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
  • ther fusion research sites in Europe

Universities, other research organisations

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April 18-19 2002, Cluj-Napoca RoEduNet Conference Slide 39

References and References and L Links inks

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/

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L Links and References inks 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