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- Mohamed Bamakhrama, Todor Stefanov
- 2011 Proceedings of the Ninth ACM International…
- 2011

Most of the hard-real-time scheduling theory for multiprocessor systems assumes <i>independent</i> periodic or sporadic tasks. Such a simple task model is not directly applicable to modern embedded streaming applications. This is because a modern streaming application is typically modeled as a directed graph where nodes represent actors (i.e. tasks) and… (More)

- Mohamed Bamakhrama, Todor Stefanov
- CODES+ISSS
- 2012

In this paper, we consider the problem of hard-real-time scheduling of embedded streaming applications, modeled using dataflow graphs, while minimizing the application latency. Recently, it has been shown that the actors in an acyclic Cyclo-Static Dataflow (CSDF) graph can be scheduled as a set of implicit-deadline periodic tasks. Such scheduling approach… (More)

- Mohamed Bamakhrama, Jiali Teddy Zhai, Hristo Nikolov, Todor Stefanov
- 2012 Design, Automation & Test in Europe…
- 2012

The increasing complexity of modern embedded streaming applications imposes new challenges on system designers nowadays. For instance, the applications evolved to the point that in many cases hard-real-time execution on multiprocessor platforms is needed in order to meet the applications' timing requirements. Moreover, in some cases, there is a need to run… (More)

- Mohamed Bamakhrama, Todor Stefanov
- Design Autom. for Emb. Sys.
- 2013

In this paper, we consider the problem of hard-real-time (HRT) multiprocessor scheduling of embedded streaming applications modeled as acyclic dataflow graphs. Most of the hard-real-time scheduling theory for multiprocessor systems assumes independent periodic or sporadic tasks. Such a simple task model is not directly applicable to dataflow graphs, where… (More)

- Jiali Teddy Zhai, Mohamed Bamakhrama, Todor Stefanov
- 2013 50th ACM/EDAC/IEEE Design Automation…
- 2013

Embedded streaming applications specified using parallel <i>Models of Computation</i> (MoC) often contain ample amount of parallelism which can be exploited using Multi-Processor System-on-Chip (MPSoC) platforms. It has been shown that the various forms of parallelism in an application should be explored to achieve the maximum system performance. However,… (More)

- Emanuele Cannella, Mohamed Bamakhrama, Todor Stefanov
- 2014 Design, Automation & Test in Europe…
- 2014

Modern multiprocessor streaming systems have hard real-time constraints that must be always met to ensure correct functionality. At the same time, these streaming systems must be designed to use the minimum required amount of resources (such as processors and memory). In order to meet such constraints, using scheduling algorithms from the classical… (More)

PROEFSCHRIFT ter verkrijging van de graad van Doctor aan de Universiteit Leiden, op gezag van Rector Magniicus prof.mr. My prayer and my sacrifice and my life and my death are all for God, the Lord of the worlds.

In this paper, we address the problem of automated design of hard real-time embedded streaming systems. To this end, we introduce the notion of optimal design flow. An optimal design flow is one that accepts, as input, a set of hard real-time streaming programs, and then produces in a fully automated manner, as output, the final system implementation, which… (More)

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