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OGSA V1 Document (p19)

Demand. “. ”. Supply. “. ”. Workload Mgmt. Resource Mgmt. Framework. Environment. Framework. Resource. CMM. Mgmt. Reservation. Primary Interaction. Factory. User/Job. Job. Policies. Information Provider. Resource. Proxies. Factory. Allocation. Meta. -. Interaction.

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OGSA V1 Document (p19)

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  1. Demand “ ” Supply “ ” Workload Mgmt. Resource Mgmt. Framework Environment Framework Resource CMM Mgmt. Reservation Primary Interaction Factory User/Job Job Policies Information Provider Resource Proxies Factory Allocation Meta - Interaction Resource Provisioning (or Binding) Dependency management Optimizing Framework Scheduling Resource Optimizing Framework Workload Optimizing Framework Queuing Services Capacity Management Workload Optimization Workload Optimization Resource Placement Resource – Workload Workload Post Balancing Admission Control (Resources) Optimal Mapping Quality of Service (Resources) Workload Models (History/Prediction) Resource Selection Workload Orchestration Selection Context (e.g. VO) Admission Control (Workload) Represents one or more OGSA services SLA Management (Workload) 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 ImplementationsWhere 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)

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