RePhoNet
–
a Regional Photonic Testbed
Dr. Thomas Eickermann
John von Neumann - Institute for Computing
Research Centre Jülich
UK National e-Science Centre Opening
Full Sail Room, April 25th
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Agenda
• the proposed RePhoNet
– objectives
– partners
– project outline
• application examples
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Research Centre Jülich
• largest national research lab in Germany:
4300 employees, ~1000 scientists
• multi-disciplinary centre:
Matter
Energy
Information
Life
Environment
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John von Neumann - Institute for Computing
• joint foundation of
– Research Centre Jülich
– DESY (German Electron Synchrotron)
• mission
– nationwide provision of supercomputer capacity for
science, research and industry
– Supercomputer-oriented research and development
– education and training in supercomputing
• Supercomputers
– Jülich: CRAY T3E-600/512, T3E-1200/512, SV1ex
– Zeuthen: 3 x Quadrics/APE100, APEmille
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RePhoNet – Rationale
• data transfer volume in DFN- German
Science Network grows by ~ 2.2 / year
– 629 TeraByte in January 2002
• technology-update
– 1996 B-WiN: 155 Mbit/s ATM
– 2000 G-WiN: 2.5 Gbit/s POS
– 200? ?
• testbeds have prepared each transition
– what will be the next step ?
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All-optical „photonic“ Networks
• current backbone networks
– optical transport via fiber
– electrical switching at the cross-connects
• drawbacks
– performance of electrical components limit
bandwidth
• photonic networks
– optical switching of individual λs
– no packet switching
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Photonic Networks
• technology for Terabit-backbones
• adaption of network topology and
bandwidth by assigning λs according to
– network load
– application requirements: GRID
• protocol transparency - ability to transport
any digital data:
– IP-traffic
– fiber-channel, digital video, Myrinet, ...
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RePhoNet
• A regional photonic network in North Rhine
Westfalia that serves as a testbed for the nextgeneration Science Network in Germany:
– evaluation of equipment
– gain experience with the operation of an all-optical
network
– demonstration of applications that rely on the new
features of the network
• high bandwidth, bandwidth on demand
• protocol-transparency
• proposed start: December 2002
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Project Partners
Federal Ministry for Education and Research
DFN – German Research Network
Fraunhofer Institute for Media Communication
John von Neumann - Institute for Computing
Fraunhofer Institute for Algorithms and Scientific Computing
Center of Advanced European Studies and Research
Fachhochschule Bonn-Rhein-Sieg
DLR – German Aerospace Center
University of Bonn
Pallas GmbH
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RePhoNet - Objectives
• evaluation of equipment, gain experience
–
–
–
–
set up a testbed of sufficient complexity
start with „standard“ DWDM hardware
replace electrical by optical components when available
connect to a European „post-Géant“ optical testbed
RWTH
Aac he n
2nd pha s e
Köln
170 km
indire ct link
J ülich
KHM
10 km
28 km
FZJ
120 km
155 km
indire ct link
Bonn
UNI
K.-P orz
S t. Augus tin
22 km
DLR
35 km
Optica l Add-Drop Multiple xe r (OADM)
GMD
Cae s ar
Uni - IAM
Th.Eickermann 25.4.2002
Optica l Cros s -Conne ct (OXC)
Kuns thalle
Forschungszentrum Jülich
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RePhoNet - Application Areas
• distributed interactive simulations:
– coupling of PC-Clusters at the partner sites
– remote visualisation and steering of
simulations
• virtual reality / visualisation
– tele-immersion
– collaborative visualisation
• Wide Area Storage Networks
– remote backup, desaster recovery, ...
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Two Examples from a former Project
• Gigabit Testbed West (1997-2000)
2.5 Gbit/s ATM-network between Jülich
(NIC) and Sankt Augustin (FhG)
– Supercomputer-enhanced instruments:
online functional magneto-resonance imaging
– distributed interactive simulations:
transport of pollutants in ground water
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Online Visualization of fMRI data
W.Frings (NIC), S.Posse (IME), G.Goebbels (FhG-IMK)
• non-invasive human brain
reseach & diagnostic:
• MR-scan of brain ~ 1-4 sec
• correlatation of modeled
blood-oxygen response to
external stimulus with
measurement
• visualization on VR or
stereo WS display
• advanced processing requires
supercomputers
• online visualization requires
high-end servers
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fMRI: Right Hand Finger-Tapping
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Interactive Distributed Simulation of
Transport of Pollutants in Ground water
W.Frings (NIC), H.Vereecken (ICG), H.Grund (FhG-SCAI)
GTBW
• FE-simulation of ground water on an IBM SP2
• transfer of results over the 2.5 Gbit/s testbed
• particle-simulation of pollutants on a Cray T3E
• optional onlinevisualization
and -control
rainfall
evaporation
non-saturated flow
saturated flow
saturated flow
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Impermeable layers
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Resources
•
•
•
•
DFN
www.dfn.de
FhG
www.fraunhofer.de
NIC
www.fz-juelich.de/nic
Gigabit Testbed West
www.fz-juelich.de/gigabit
Contact
• Ferdinand Hommes (FhG-IMK)
Ferdinand.Hommes@imk-fraunhofer.de
• Dr. Thomas Eickermann (FZ-Jülich / NIC)
th.eickermann@fz-juelich.de
• Dr. Peter Kaufmann (DFN)
kaufmann@dfn.de
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