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Harmonic Scheduling and Control Co-Design

Xu, Yang LU ; Cervin, Anton LU and Årzén, Karl-Erik LU (2016) 22nd IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2016 In 2016 IEEE 22nd International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA)
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,... (More)
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. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
2016 IEEE 22nd International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA)
pages
6 pages
conference name
22nd IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, RTCSA 2016
external identifiers
  • Scopus:84994482301
DOI
10.1109/RTCSA.2016.44
language
English
LU publication?
yes
id
7d247a89-2d97-4b36-bd53-6dc4cf78a0b3
date added to LUP
2016-08-16 09:38:23
date last changed
2016-12-04 04:56:06
@misc{7d247a89-2d97-4b36-bd53-6dc4cf78a0b3,
  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.},
  author       = {Xu, Yang and Cervin, Anton and Årzén, Karl-Erik},
  language     = {eng},
  month        = {08},
  pages        = {6},
  series       = { 2016 IEEE 22nd International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA)},
  title        = {Harmonic Scheduling and Control Co-Design},
  url          = {http://dx.doi.org/10.1109/RTCSA.2016.44},
  year         = {2016},
}