Multi-Objective Optimization of Real-Time Task Scheduling Problem for Distributed Environments

Maghsood Salimi, Amin Majd, Mohammad Loni, Tiberiu Seceleanu, Cristina Seceleanu, Marjan Sirjani, Masoud Daneshtalab, Elena Troubitsyna

Research output: Chapter in Book/Conference proceedingConference contributionScientificpeer-review

Abstract

Real-world applications are composed of multiple tasks which usually have intricate data dependencies. To exploit distributed processing platforms, task allocation and scheduling, that is assigning tasks to processing units and ordering inter-processing unit data transfers, plays a vital role. However, optimally scheduling tasks on processing units and finding an optimized network topology is an NP-complete problem. The problem becomes more complicated when the tasks have real-time deadlines for termination. Exploring the whole search space in order to find the optimal solution is not feasible in a reasonable amount of time, therefore meta-heuristics are often used to find a near-optimal solution.We propose here a multi-population evolutionary approach for near-optimal scheduling optimization, that guarantees end-to-end deadlines of tasks in distributed processing environments. We analyze two different exploration scenarios including single and multi-objective exploration. The main goal of the single objective exploration algorithm is to achieve the minimal number of processing units for all the tasks, whereas a multi-objective optimization tries to optimize two conflicting objectives simultaneously considering the total number of processing units and end-to-end finishing time for all the jobs. The potential of the proposed approach is demonstrated by experiments based on a use case for mapping a number of jobs covering industrial automation systems, where each of the jobs consists of a number of tasks in a distributed environment.
Original languageEnglish
Title of host publicationProceedings of the 6th Conference on the Engineering of Computer Based Systems
Place of PublicationNew York, NY, USA
PublisherAssociation for Computing Machinery
ISBN (Print)9781450376365
DOIs
Publication statusPublished - 2019
MoE publication typeA4 Article in a conference publication

Publication series

NameECBS '19
PublisherAssociation for Computing Machinery

Keywords

  • Real-Time Processing
  • Distributed Task Scheduling
  • Evolutionary Computing
  • Multi-Objective Optimization

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