Stylianos Mamagkakis

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Today, wireless networks are moving big amounts of data between mobile devices, which have to work in an ubiquitous computing environment, which perpetually changes at run-time (i.e., nodes log on and off, varied user activity, etc.). These changes introduce problems that can not be fully analyzed at design-time and require dynamic (runtime) solutions.(More)
In the past decade, real-time embedded systems have become much more complex due to the introduction of a lot of new functionality in one application, and due to running multiple applications concurrently. This increases the dynamic nature of today's applications and systems, and tightens the requirements for their constraints in terms of deadlines and(More)
New portable consumer embedded devices must execute multimedia and wireless network applications that demand extensive memory footprint. Moreover, they must heavily rely on Dynamic Memory (DM) due to the unpredictability of the input data (e.g. 3D streams features) and system behaviour (e.g. number of applications running concurrently defined by the user).(More)
In this paper, we present a novel system modeling language which targets primarily the development of source-level multiprocessor memory aware optimizations. In contrast to previous system modeling approaches this approach tries to model the whole system and especially the memory hierarchy in a structural and semantically accessible way. Previous(More)
New portable consumer embedded devices must execute multimedia and wireless network applications that demand extensive memory footprint. Moreover, they must heavily rely on Dynamic Memory (DM) due to the unpredictability of the input data (e.g., 3D streams features) and system behavior (e.g., number of applications running concurrently defined by the user).(More)
Embedded consumer devices are increasing their capabilities and can now implement new multimedia applications reserved only for powerful desktops a few years ago. These applications share complex and intensive dynamic memory use. Thus, dynamic memory optimizations are a requirement when porting these applications. Within these optimizations, the refinement(More)
In the near future, portable embedded devices must run multimedia and wireless network applications with enormous computational performance (1-40GOPS) requirements at a low energy consumption (0.1–2 W). In these applications, the dynamic memory subsystem is currently one of the main sources of power consumption and its inappropriate management can severely(More)
The information about the run-time behavior of software applications is crucial for enabling system level optimizations for embedded systems. This embedded <i>Software Metadata</i> information is especially important today, because several complex multi-threaded applications are mapped on the memory of a single embedded system. Each thread is triggered at(More)