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SciDAC SSS Infrastructure and BCM Update 10/2002

Narayan Desai desai@mcs.anl.gov Argonne National Laboratory. SciDAC SSS Infrastructure and BCM Update 10/2002. Overview. Infrastructure Service Directory Event Manager SSSlib Bindings Wire Protocol Modules Build and Configuration Management Cluster Hardware Infrastructure Build System

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SciDAC SSS Infrastructure and BCM Update 10/2002

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  1. Narayan Desai desai@mcs.anl.gov Argonne National Laboratory SciDAC SSS Infrastructure and BCM Update 10/2002

  2. Overview • Infrastructure • Service Directory • Event Manager • SSSlib • Bindings • Wire Protocol Modules • Build and Configuration Management • Cluster Hardware Infrastructure • Build System • Node State Manager • Abstraction

  3. Service Directory Status • Static Schemas • Complete Error Handling • Deployed • Reliable at Moderate Scale

  4. Event Manager • Usage Model • Stable Schemas • Relatively Complete Error Handling • Completely Rewritten • Received Moderate Testing • Potential Subscription Type Differentiation

  5. SSSlib • Robust • New C implementation • Bindings • C++ • Java • Python • Perl • Wire protocol modules • Basic • Challenge • http-rm (in development) • http (in development)

  6. BCM Abstraction • “2nd try” Abstraction • Components • Node Manager • Cluster Control • Didn’t Work • “3rd is the charm • Components • Cluster Hardware Infrastructure • Build System • Node State Manager • Why we think it will work

  7. Cluster Hardware Infrastructure • Handles new node integration • Abstracts cluster hardware infrastructure • Power Controllers • Serial Consoles • Bios Issues • Node Inventory • Node Identification

  8. Node State Manager • Node State Tracking • Basic state monitoring • Node Administrative State • Online/Offline • Corrective Action Facility • Pull the plug on bad nodes • Unknown criterion

  9. Build System • Disk Setup • Software Configuration • Software Deployment

  10. Example Node Introduction • New node added • CHI identifies node • CHI hands off control of node to BS • BS builds node into “proper” configuration • BS hands off control of node to NSM • NSM can set node administrative state • In case of errors, node can be rebuilt or other actions can be taken

  11. Soon • Start to standardize events • Enhance event data format? • Implement more wire protocols • Complete “hot-swap” tests for BCM components • Logic for the node state manager • Implement a modular cluster hardware infrastructure

  12. Issues • Abstraction problems • BCM model unknown • Implementation feedback • Multiple implementations help

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