Data-flow Timing Models of Dynamic Multimedia Applications for Multiprocessor Systems
Efficient implementation of complex state-of-the-art multimedia applications on a system-on-chip requires a multi-
processor architecture. For this purpose, we have developed modeling techniques for application mapping on predictable multiprocessor systems. In the mapping experiments, it was found that the static nature of synchronous
data-flow graphs are not suited for multimedia systems,
which are increasingly characterized by dynamic workload. Therefore, we present an extension that also captures the dynamic properties of multimedia applications.
We chose MPEG-4 shape-texture decoding, as a complex
example for the modeling of an application with dynamic
behavior. Experiments with a set of five test sequences show
that our model has a high accuracy (3.4%). A key advantage of our modeling method is that it allows to analytically
derive the performance characteristics.
- Data-flow Timing Models of Dynamic Multimedia Applications for Multiprocessor Systems.
M. Pastrnaka, P. Poplavko, P.N.H. de With and D.S. Farin
In: System-on-Chip for Real-Time Applications, The 4th IEEE International Workshop, IWSOC04, Proceedings. IEEE Computer Society
Press, Los Alamitos, CA, USA, 2004. (abstract, pdf)
|
