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SC2004 GLIF Panel Peter Clarke
GLIF Infrastructure
SC2004 Panel
Discussion
Peter ClarkeUK National e-Science Centre
SC2004 GLIF Panel Peter Clarke
Questions
Why are Canada, Japan, the Netherlands, the United Kingdom and the United States involved in GLIF?
What can be accomplished on lambdas that cannot be accomplished on "best-effort" networks?
Where does your infrastructure connect?
What's missing? When will we implement a totally functional LambdaGrid?
What do you see as the future of networking?
SC2004 GLIF Panel Peter Clarke
Questions
Why are Canada, Japan, the Netherlands, the United Kingdom and the United States involved in GLIF?
Community Lobby
National Competitiveness in Research
Acceptance that one size manifestly doesn’t fit all
Capability for Research
You cant do it alone (by definition its an end-2-end thing)
Trust
SC2004 GLIF Panel Peter Clarke
Initial condition: Random water/ surfactant mixture.
Self-assembly starts.
Rewind and restart from checkpoint.
Lamellar phase: surfactant bilayers between water layers.
Cubic micellar phase, low surfactant density gradient.
Capability : Capability : Steering & Migration of Computationally intensive simulationsSteering & Migration of Computationally intensive simulations
SC2004 GLIF Panel Peter Clarke
UK HPC machines connected to TeraGrid for SC2003
Now a persistent connection
Source: Reality Grid Project www.realitygrid.org
SC2004 GLIF Panel Peter Clarke
Capability: Breast Screening ProgrammesCapability: Breast Screening Programmes
Current system is “minimal”
technologically
(taken from e-DiaMoND Project)
SC2004 GLIF Panel Peter Clarke
NETWORK NETWORK
Future should be digitised and
processed images
Remote Radiographers ?
Remote Patient information
2nd opinion
• Requires ~ Gbit/s flows for remote access
• Will not be possible without scheduled guaranteed net-
services
(taken from e-DiaMoND Project)
SC2004 GLIF Panel Peter Clarke
What can be accomplished on lambdas that cannot be accomplished on "best-effort" networks?
An R&D network is not a production network – you can do “out of the box” things
Certainty of having what you need when you need it (but not scalable today of course) – means research
computing can be planned
Ability to use non standard transport
Fixed latency => “backplane” connections between compute centres => virtual machine rooms
Provide virtual networks a la UCLP, and push management to the users
SC2004 GLIF Panel Peter Clarke
CDF – Connection UCL-FNAL
SC2004 GLIF Panel Peter Clarke
Where does your infrastructure connect ?
SC2004 GLIF Panel Peter Clarke
10 Gbit/s
SURFnet10 Gbit/s
SURFnet10 Gbit/s
IEEAF10 Gbit/s
PragueCzechLight
PragueCzechLight
2.5 Gbit/s
NSF10 Gbit/s
StockholmNorthernLight
StockholmNorthernLight
CA*net4
2.5 Gbit/s
New YorkMANLANNew YorkMANLAN
TokyoWIDETokyoWIDE
10 Gbit/s
10 Gbit/s
10 Gbit/s
10 Gbit/s
IEEAF10 Gbit/s
10 Gbit/s
10 Gbit/s
2.5 Gbit/s
2.5 Gbit/sTokyoAPANTokyoAPAN
AmsterdamNetherLightAmsterdamNetherLight
GenevaCERN
GenevaCERN
LondonUKLightLondonUKLight
ChicagoStarLightChicagoStarLight
Source: Kees Neggers, SURFnet
SC2004 GLIF Panel Peter Clarke
As a result of the initiative, UKERNA have pushed through a complementary initiative to provide a nationwide domestic R&D network in parallel with SupetJANET
LeNSESWERN
Kentish MAN
NorMAN
YHMAN
EMMAN
EastNet
LMN
South WalesMAN
TVN
MidMAN
NorthernIreland
NNWC&NLMAN
Glasgow Edinburgh
Warrington Leeds
Reading London
Bristol Portsmouth
EaStMAN
UHI NetworkClydenet
AbMANFaTMAN
S
T
C
T
T
T
TT
T
S S
S
T
T
LondonUKLightLondonUKLight
SC2004 GLIF Panel Peter Clarke
What's missing? When will we implement a totally functional LambdaGrid?
When NRENS all adopt hybrid networking as the normal business model
o Requirement: irrefutable proof of benefit o Political: national competitiveness, one price for all
issues.. o Financial: proof of cost effectiveness
o Policy:
When we have a common and “standards” based control plane infrastructure – not individual solutions : now is the
time to get together on this one (IMHO)
I have no idea about the last mile issue
SC2004 GLIF Panel Peter Clarke
What do you see as the future of networking
Wrong guy to ask – I think from point of view of future of computationally intensive research where I would say:
We must get to point where network is not seen by researchers as a big barrier which keeps sites disjoint
Must ensure it is understood that research capability is currently inhibited by “traditional” network provision
Must ensure it is understood that one size doesn’t fit all is a good idea
(there is no way research could be carried out if we all took commercial IP connections)
SC2004 GLIF Panel Peter Clarke
… a possible Network of the Future….
Provides• Normal best effort IP network where appropriate • Extended “virtual LANs” where appropriate • Switched lightpaths where appropriate
“layer-2” split out of wavelength[e.g. Ethernet]
Router RouterRouted IP Network