Skip to Main content Skip to Navigation
Reports

Optimal resilience patterns to cope with fail-stop and silent errors

Abstract : This work focuses on resilience techniques at extreme scale. Many papers deal with fail-stop errors. Many others deal with silent errors (or silent data corruptions). But very few papers deal with fail-stop and silent errors simultaneously. However, HPC applications will obviously have to cope with both error sources. This paper presents a unified framework and optimal algorithmic solutions to this double challenge. Silent errors are handled via verification mechanisms (either partially or fully accurate) and in-memory checkpoints. Fail-stop errors are processed via disk checkpoints. All verification and checkpoint types are combined into computational patterns. We provide a unified model, and a full characterization of the optimal pattern. Our results nicely extend several published solutions and demonstrate how to make use of different techniques to solve the double threat of fail-stop and silent errors. Extensive simulations based on real data confirm the accuracy of the model, and show that patterns that combine all resilience mechanisms are required to provide acceptable overheads.
Complete list of metadatas

Cited literature [37 references]  Display  Hide  Download

https://hal.inria.fr/hal-01215857
Contributor : Equipe Roma <>
Submitted on : Thursday, October 15, 2015 - 10:43:23 AM
Last modification on : Wednesday, February 26, 2020 - 11:14:31 AM
Long-term archiving on: : Thursday, April 27, 2017 - 4:39:23 AM

File

RR-8786.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : hal-01215857, version 1

Collections

Citation

Anne Benoit, Aurélien Cavelan, Yves Robert, Hongyang Sun. Optimal resilience patterns to cope with fail-stop and silent errors. [Research Report] RR-8786, LIP - ENS Lyon. 2015. ⟨hal-01215857⟩

Share

Metrics

Record views

426

Files downloads

404