Observatorio de I+D+i UPM

Memorias de investigación
Communications at congresses:
Time-Predictable Reconfiguration with Contract-Based Resource Management.
Year:2009
Research Areas
  • Architecture of computers,
  • Telematics
Information
Abstract
Applications of high-quality multimedia embedded systems (HQMES) contain concurrent functionality pieces; they may have a flexible structure consisting of services, components, or tasks. This allows applications to offer different execution possibilities to provide a same (or different) output quality. Since multimedia applications are typically greedy resource consumers, they may interfere one another¿s execution; this can be a source of unpredictability, especially in the event of reconfigurations. This paper presents a description on how to minimize such execution uncertainty at different levels: (1) the OS has to offer the basic real-time support, (2) appropriate resource management techniques will have to be built, usually inside a QoSRM (QoS resource manager entity), and (3) applications should be designed in a flexible but yet manageable way. This paper recovers an efficient application characterization as the basis for offering the QoSRM a manageable application structure. On top of this application characterization, a contract model is described to provide predictable execution. Also, two reconfiguration algorithms are presented, so that application execution is kept predictable even during reconfiguration.
International
Si
Congress
960
Place
Reviewers
Si
ISBN/ISSN
978-0-7695-3639-2
Start Date
End Date
From page
0
To page
0
Participants
  • Autor: Alejandro Antonio Alonso Muñoz (UPM)
  • Autor: Juan Antonio de la Puente Alfaro (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Sistemas de tiempo real y arquitectura de servicios telemáticos
  • Departamento: Ingeniería de Sistemas Telemáticos
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