Harmonic Scheduling and Control Co-Design

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

Harmonic task scheduling has many attractive properties, including a utilization bound of 100% under rate-monotonic scheduling and reduced jitter. At the same time, it places a severe constraint on the task period assignment for any application. In this paper, we explore the use of harmonic task scheduling for applications with multiple feedback control tasks. We present an algorithm for finding harmonic task periods that minimizes the distance from an initial set of non-harmonic periods. We apply the algorithm in a scheduling and control co-design procedure, where the goal is to optimize the total performance of a number of control tasks that share a common computing platform. The procedure is evaluated in simulated randomized examples, where it is shown that, in general, harmonic scheduling combined with release offsets gives better control performance than standard, non-harmonic scheduling.

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Subject classification (UKÄ) – MANDATORY

  • Control Engineering
Original languageEnglish
Title of host publication 2016 IEEE 22nd International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA)
Number of pages6
ISBN (Electronic)978-1-5090-2479-7
Publication statusPublished - 2016 Aug 17
Publication categoryResearch
Peer-reviewedYes
Event22nd IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2016 - Daegu, Korea, Republic of
Duration: 2016 Aug 172016 Aug 19
https://conference.cs.cityu.edu.hk/rtcsa2016/

Conference

Conference22nd IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2016
CountryKorea, Republic of
CityDaegu
Period2016/08/172016/08/19
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