1. Market for Computational Services Resource Brokering, Scheduling and Accounting John Ainsworth, e-Science North West john.ainsworth@manchester.ac.uk

2. e-Science North West2 Project Aims  The majority of Grid deployments are closed –The usage of resources relies on charity or exchange  A model based on a common currency is required to increase availability and utilisation  The aim of the Markets for Computational Services (MCS) project is to develop software that provides the mechanisms from which computational markets can be built –Namely brokering, negotiating, contracting, accounting and payment.  Free market dynamics will then determine what happens…

3. e-Science North West3 Technologies  Originally based firmly on OGSI  Transition from OGSI -> WSRF gave reason to rethink our choice  We are now using plain web services with J2EE container  WS-Security with X.509 certificates is used for authentication  SSL used for secure transmission

4. e-Science North West4 Architecture

5. e-Science North West5 Demonstration Configuration User Agent RB-I RB-R Resource Broker I SD-A QS Altix QS Origin Quote Service Altix Quote Service Origin Quote Service Re-seller Independent Broker Job Submission Service Altix Job Submission Service Origin Resource Usage Service Altix Altix Origin AltixOrigin Service Provider Altix Service Provider RFQ lookup

6. e-Science North West6 Demonstration Configuration User Agent RB-I RB-R Resource Broker I SD-A QS Altix QS Origin Quote Service Altix Quote Service Origin Quote Service Re-seller Independent Broker Job Submission Service Altix Job Submission Service Origin Resource Usage Service Altix Altix Origin AltixOrigin Service Provider Altix Service Provider Quote

7. e-Science North West7 Demonstration Configuration User Agent RB-I RB-R Resource Broker I SD-A QS Altix QS Origin Quote Service Altix Quote Service Origin Quote Service Re-seller Independent Broker Job Submission Service Altix Job Submission Service Origin Resource Usage Service Altix Altix Origin AltixOrigin Service Provider Altix Service Provider JSDL BSUB UR

8. e-Science North West8 Future Work  Resource Usage Server usability and functionality enhancements  Advanced reservation and demand-led pricing  Work flow scheduling and negotiation  Integration with LeSC banking service

9. e-Science North West www.esnw.ac.uk Research Support Services Group, Manchester Computing, University of Manchester www.sve.man.ac.uk