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Communication-aware Scheduling of AUTOSAR Runnables on Multi-core Systems

Authors:

Hamid Reza Faragardi, Kristian Sandström, Björn Lisper, Thomas Nolte

Research groups:

Programming Languages
Complex Real-Time Embedded Systems

Publication Type:

Conference/Workshop Paper

Venue:

International Workshop on Design Space Exploration of Cyber-physical Systems

Abstract

The AUTOSAR consortium has developed as the worldwide standard for automotive embedded software systems. From a processor perspective, AUTOSAR has originally been developed for single-core processor target platforms. Recent trends and developments have raised the desire and focused on the potential usage of multi-core processors for running AUTOSAR-based software. However, inherent in the complex nature of software execution on multi-core processors, there are challenges in achieving a resource ecient design of embedded software systems for multi-core processors. In this paper, we investigate the design space related challenges in achieving such a resource ecient and predictable mapping of AUTOSAR runnables onto a multi-core processor. The goal of this paper is to achieve a design solution that minimize the runnables' communication cost besides meeting all runnables' timing and precedence constraints. The main challenges in ful lling this goal are the mapping of AUTOSAR runnables onto a set of tasks and to schedule the generated task set on a multi-core processor such that timing and precedence constrains are met while the overall communication cost is minimized. To address the problem two solution frameworks are suggested, that each of which contains both mapping and scheduling phases. In addition, the impact of the communication cost on the overall system utilization is discussed as a design space parameter for trading off diffrerent design solutions.

Bibtex

@inproceedings{Faragardi3721,
author = {Hamid Reza Faragardi and Kristian Sandstr{\"o}m and Bj{\"o}rn Lisper and Thomas Nolte},
title = {Communication-aware Scheduling of AUTOSAR Runnables on Multi-core Systems},
month = {April},
year = {2014},
booktitle = {International Workshop on Design Space Exploration of Cyber-physical Systems},
url = {http://www.es.mdu.se/publications/3721-}
}