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Fault Tolerance Integration for Common Component Architecture

Explore integrating fault tolerance mechanisms into the Common Component Architecture, enhancing the resilience of software systems. This project involves event services, sensors, adaptation, and response strategies across various components.

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Fault Tolerance Integration for Common Component Architecture

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  1. Fault Tolerance and the Common Component Architecture David E. Bernholdt ORNL

  2. Center for Improvement of Fault Tolerance in Systems (CIFTS) • Participants: Institution – PI • ANL – Beckman (Lead PI) • Indiana U – Lumsdaine • LBNL – Hargrove • Ohio State U – Panda • ORNL – Geist • U Tennessee – Dongarra • Submitted as SciDAC 2 CET • Funded as base program • Also known as FOBAWS, Faulty

  3. Fault Tolerance Backplane (FTB) • The core idea of CIFTS • Event service to convey fault information throughout the software stack and the machine • Hardware sensors to OS/runtime to libraries to applications • FTB components may generate or consume fault-related events • Prediction, adaptation, response

  4. ANL (Beckman) Parallel file systems MPI, MPI-IO Linux Scheduler/resource manager Indiana U (Lumsdaine) MPI, MPI-IO LBNL (Hargrove) Checkpoint/restart Ohio State U (Panda) Interconnect ORNL (Geist) CCA integration Applications (chemistry, fusion) U Tennessee (Dongarra) Scalapack, math libraries Planned Areas of Activity

  5. CCA Integration • CCA components should be able to consume or generate FTB events • Adapter between FTB and CCA event service • Main focus • CCA applications will be consumers of FTB information • Interesting secondary possibilities • Allow CCA components to plug into FTB as to provide adaptation/response services • FTB could be derived from CCA event service

  6. Summer Plans • MCMD architecture for SWIM Integrated Plasma Simulator (IPS) to be developed this summer by Samantha Foley (IU) • Not CCA-compliant, but will provide use case and prototype implementation for CCA MCMD discussions • Demonstration of FT in MCMD IPS to be developed by Aniruddha Shet • Focus on a few simple MCMD-relevant events • Use IPS event service (FTB not designed)

  7. Discussion: What FT Events are Relevant to CCA? • Presumably many FT events are interesting to CCA applications, utility components • What FT events are relevant to CCA itself? • framework • parallel • distributed • services • …

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