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“Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003
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“Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

Jan 04, 2016

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Page 1: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

“Grids and eScience”

Mark Hayes Technical Director - Cambridge eScience Centre

GEFD Summer School 2003

Page 2: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

eScience - a definition

“eScience is about global collaboration in key areas of science and the next generation of infrastructure that will enable it.”

Dr.John Taylor, Director General of the Research Councils

Page 3: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

In the beginning…

"The collection of people, hardware, and software... will become a node in a geographically distributed computer network…. Through the network... all the large computers can communicate with one another. And through them, all the members of the community can communicate with other people, with programs, with data, or with a selected combination of those resources.”

J.C.R.Licklider, “The Computer as a Communication Device”Science and Technology, April 1968

The ARPAnet in 1970

Page 4: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

International connectivity - 1991

Page 5: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

International connectivity - 1997

Page 6: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

International bandwidth

From “3D geographic network displays” - Cox et al, ACM Sigmod Record - December 1996

Page 7: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

What does the Internet look like?

http://www.cybergeography.org/

Page 8: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

The World Wide Web

Invented at CERN by Tim Berners-Lee in 1989 as a tool for collaboration and information sharing in the particle physicscommunity.

Page 9: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

Early distributed computing

1.2 million CPU years so far...

Brute force attempt to crack strong encryption

Protein folding

Page 10: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

The Grid - 1998

Editors: Foster & Kesselman

700 pages22 chapters40 authors

Analogy with the electricalpower grid - just plug in.

Page 11: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

The Grid - 2003

Editors: Berman, Hey, Fox

1000 pages43 chapters116 authors

Applications, data sharing andvirtual communities.

Page 12: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

It’s not just compute cycles...

An exponential growth in data from many areas of science.

Page 13: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

The Grid in the UK

Pilot projects in particle physics,astronomy, medicine, bioinformatics,environmental sciences...

Contributing to internationalGrid software development efforts

10 regional “eScience Centres”

Page 14: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

Some UK Grid resources

• Daresbury - loki - 64 proc Alpha cluster• Manchester - green - 512 proc SGI Origin 3800• Imperial - saturn - large SMP Sun• Southampton - iridis - 400 proc.Intel Linux cluster• Rutherford Appleton Lab - hrothgar - 32 proc Intel Linux• Cambridge - herschel - 32 proc Intel Linux cluster • ...• coming soon: 4x >64 CPU JISC clusters, HPC(X)

Page 15: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

Applications on the UK Grid

Ion diffusion through radiation damaged crystal structures (Mark Calleja, Earth Sciences, Cambridge)

• Monte Carlo simulation lots of independent runs• small input & output • more CPU -> higher temperatures, better stats• access to ~100 CPUs on the UK Grid• Condor-G client tool for farming out jobs

Page 16: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

Applications on the UK Grid

Reality Grid (Stephen Pickles, Robin Pinning - Manchester)

• Fluid dynamics of complex mixtures, e.goil, water and solid particles (mud)

• Used CPU at London, Cambridge

• Remote visualisation using SGIOnyx in Manchester (from a laptop in Sheffield)

• Computational steering

Page 17: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

Applications on the UK Grid

GENIE - Grid Enabled Integrated Earth system model(Steven Newhouse, Murtaza Gulamali - Imperial)

• Ocean-atmosphere modelling

• How does moisture transport from the atmosphere effect ocean circulation?

• ~1000 independent 4000year runs (3 days real time!) on ~200 CPUs

• Flocked condor pools at London & Southampton

• Coupled modelling

Page 18: “Grids and eScience” Mark Hayes Technical Director - Cambridge eScience Centre GEFD Summer School 2003.

Questions?