Automating fault tolerance in high-performance computational biological jobs using multi-agent approaches

Blesson Varghese, Gerard McKee, Vassil Alexandrov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
311 Downloads (Pure)

Abstract

Background: Large-scale biological jobs on high-performance computing systems require manual intervention if one or more computing cores on which they execute fail. This places not only a cost on the maintenance of the job, but also a cost on the time taken for reinstating the job and the risk of losing data and execution accomplished by the job before it failed. Approaches which can proactively detect computing core failures and take action to relocate the computing core's job onto reliable cores can make a significant step towards automating fault tolerance. Method: This paper describes an experimental investigation into the use of multi-agent approaches for fault tolerance. Two approaches are studied, the first at the job level and the second at the core level. The approaches are investigated for single core failure scenarios that can occur in the execution of parallel reduction algorithms on computer clusters. A third approach is proposed that incorporates multi-agent technology both at the job and core level. Experiments are pursued in the context of genome searching, a popular computational biology application. Result: The key conclusion is that the approaches proposed are feasible for automating fault tolerance in high-performance computing systems with minimal human intervention. In a typical experiment in which the fault tolerance is studied, centralised and decentralised checkpointing approaches on an average add 90% to the actual time for executing the job. On the other hand, in the same experiment the multi-agent approaches add only 10% to the overall execution time
Original languageEnglish
Pages (from-to)28-41
Number of pages14
JournalComputers in Biology and Medicine
Volume48
Issue number1
Early online date20 Feb 2014
DOIs
Publication statusPublished - 01 May 2014

Fingerprint

Dive into the research topics of 'Automating fault tolerance in high-performance computational biological jobs using multi-agent approaches'. Together they form a unique fingerprint.

Cite this