1. OGSA V1 Document (p19)

2. Terminology What is a job? Job made of multiple tasks –Task: Single unit of work –Job: Multiple tasks GT2: DUROC: Link tasks with barriers etc. GL: App=set of jobs, jobs=set of process COG: GridAnt (client side) SF: One provisioning jobs

3. OGSA Diagram Confusing: –What are all the services doing? –Allocation: Implementation of Auth policy with required resource. –Difference between Reservation & Resource Allocation

4. Duplication (P19) Workload Mgmt Framework –Proxies –Job factory –GL: GRMS (Job Submission) Resource Mgmt Framework –Information Provider (Glue Schema, class ad, JDL) Feed into MDS and other infor systems –Resource factory (Provisioning?) SmartFrog –Reservation (Very Basic concepts, Research level)

5. Workload Optimisation Framework (DRM) –Submit & monitoring & control job E.g. kill, suspend, signal sending Resource Optimisation Framework –Admission Control (gridmap, or equiv.)

6. Admission Control Workload Optimisation/Meta-Scheduling –ICENI, GRMS, CSF

7. User Functionality: Capability Security Context (e.g. Identity) Manipulation Submit, Control & Monitor Jobs Monitoring/Testing of the System Manipulating Remote File System –e.g. GridFTP ‘Virtual’ File Store & meta-data manipulation –e.g. RLS, WinFS –Better the viewing of the meta-data the FS structure becomes irrelevant

8. The Implementations Where are the differences? Geodise Matlab, Jython & Python environments –Gridmap: System Control –ACL on files in VirtualFS: User Control –Job Monitoring Capability –Explicit heartbeat & health monitoring GT2, GT3 & GT4 command line tools –Replica & meta-data services –Authorisation services –Infrastructure Discovery & Monitoring (soft state reg.==heartbeat) GAT (Grid Application Toolkit) implemented by GridLab –Resource Discovery (built on top of MDS & GRMS) –Registry for jobs, files, … or any object/endpoint! –Monitor all of the above objects. –Reservation API ICENI –Scheduling, performance & reservation support/implementation

9. What is being used beyond WS-I (/5) WS-Security [Username/PW/X509] (5) WS-Addressing (3.5) WS-Trust (2.5) WS-SecureConversation (2.5) JSDL (2) WS-Notification (1.5) WS-RF (1.5 – average) –WS-BaseFaults (2) –WS-ResourceProperties (2) –WS-ServiceGroup (1) –WS-ResourceLifetime (1) WS-Eventing (1)