1. Future UK e-Science Grid Middleware Dr Steven Newhouse London e-Science Centre Department of Computing, Imperial College London

2. 2 Contents Grid Middleware UK e-Science Core Programme I & II LeSC Activities

3. 3 Status of the Grid Today: ‘early adoption’ phase - just like the Web in the early days Tomorrow: sophisticated combinations of services to locate information, applications to process it, and computer systems to run them Requirements: Infrastructure to support: –e-Science –Virtual Organisations –e-Commerce –e-Utilities

4. 4 Exposing Resources as Services Permissible SLA COMPUTE RESOURCES SERVICE LEVEL AGREEMENT B A C D Defines: What? Who? When? SOFTWARE RESOURCES STORAGE RESOURCES

5. 5 Open Grid Services Architecture OGSA addresses architectural issues related to broadly interoperable Grid Services. OGSI based on the GSS provides mandatory features, such as service invocation, lifetime management, a service data interface, and security interfaces. GT3 implementation of OGSI & equivalent GT2 services GT3 Jini Jxta GT2 OGSI

6. 6 UK e-Science Core Programme From Tony Hey’s slides at EPSRC Pilot Project meeting (end of Jan 03) CP I: e-Science Centres & open calls CP II: Plans not promises as dependent on funding –SR2002: £16M –DTI: £??M Cambridge Newcastle Edinburgh Oxford Glasgow Manchester Cardiff Southampton London Belfast DL RAL Hinxton

7. 7 Core Programme 2: Overall Rationale Assist development of essential, well- engineered, generic, Grid middleware usable by both e-scientists and industry Provide necessary infrastructure support for UK e-Science Research Council projects Collaborate with the international e-Science and Grid communities Work with UK industry to develop industrial- strength Grid middleware

8. 8 Key Activities UK e-Science Grid/Centres and e-Science Institute Grid Support Centre and Network Monitoring Core Middleware engineering National Data Curation Centre e-Science Exemplars/New Opportunities Outreach and International involvement

9. 9 The e-Science Grid/Centres and the e- Science Institute Continuation of e-Science Centre’s & Institute –2 year extension for infrastructure after review –Further development of UK e-Science Grid Collaborative Industrial Projects –Call for DTI collaborative industrial projects targeted to key middleware areas Grid Support Centre & Network Monitoring

10. 10 Core Grid Middleware Activity Need to develop open source, open standard compliant, Grid Middleware stack that will integrate and federate with industrial solutions Software Engineering focus as well as R&D –Aim is to produce robust, well-documented, re-usable software that is maintainable and can evolve to embrace emerging Grid Service standards Link UK activities with Europe & US –Reduce duplication of effort –Standards development & compliance testing

11. 11 Possible Core Grid Middleware Themes Heterogeneous Database Integration Security Legal and regulatory Accounting Systems for VOs Collaborative Decision-making Networks Enterprise Computing Systems Outsourcing/e-Utilities Real-time High End Computing Enterprise Application Integration Business Processes for VOs Links to EPSRC CS Research? Autonomic Computing Semantic Grid Rapid Customised Assembly of Services Trusted Ubiquitous Systems ….

12. 12 ICENI The Iceni, under Queen Boudicca, united the tribes of South-East England in a revolt against the occupying Roman forces in AD60. IC e-Science Networked Infrastructure Developed by LeSC Grid Middleware Group Collect and provide relevant Grid meta-data Use to define and develop higher-level services Interaction with other frameworks: Web Services, Jxta etc.

13. 13 ICENI Architecture Resource Manager Policy Manager CR SR Identity Manager Domain Manager CR SR Gateway between private and public regions Public Public Computational Community SR CR Public Computational Community SR Private Administrative Domain SR CR Resource Broker Application Design Tools Component Design Tools Application Mapper Web Services Gateway Applicatio n Portal Private Computational Resource Software Resources Network Resources Storage Resources JavaCoG Globus Resource Browser RESOURCESPOLICY SERVICESUSERS

14. 14 Service Oriented Architecture ICENI interfaces for services & discovery –Platform neutral interfaces Resource: Abstraction for a capability Policy: How & where the resource is exposed Service: Route for user interaction with a resource JiniJxtaOGSA ICENI Services Users & Clients Policy Integration & Interoperability Layer Portal

15. 15 User Interaction API to discover & interact with services Exploit Netbeans Application Framework

16. 16 Grid Economic Services Architecture (GGF-WG) OGSA Grid Service Service InterfaceService Data Service InterfaceService Data OGSA Chargeable Grid Service Grid Economic Service Interface Record Resource Usage OGSA Resource Usage Service Contract Negotiation Economic Service Data Contract Verification Service Charging OGSA Grid Banking Service Grid User/Actor

17. 17 How it might work… User Container Factory Container Factory Request a price for users (…) to run jobs over 16 processors for the next 2 hours using auctioning. 30s lifetime to complete auction Request use of software library For the next 2 hours. Accept Flat rate fee of £2/hour.

18. 18 What’s next? Ontologies –For Scientific Software –For ICENI Services –For resources Fuzzy Service Matching Malleable & Ductile Scientific Components Hard deadline scheduling for network & calculation Computational Markets

19. 19 Acknowledgements Director: Professor John Darlington Technical Director: Dr Steven Newhouse Research Staff: –Anthony Mayer, Nathalie Furmento –Stephen McGough, James Stanton –Yong Xie, William Lee –Marko Krznaric, Murtaza Gulamali –Asif Saleem, Laurie Young, Gary Kong Support Staff: –Keith Sephton, Oliver Jevons, Sue Brookes Contact: –http://www.lesc.ic.ac.uk/ –e-mail: lesc@ic.ac.uk