Martin Palkovic

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Loop fusion and loop shifting are important transformations for improving data locality to reduce the number of costly accesses to off-chip memories. Since exploring the exact platform mapping for all the loop transformation alternatives is a time consuming process, heuristics steered by improved data locality are generally used. However, pure locality(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)
Modern embedded multimedia and telecommunications systems need to store and access huge amounts of data. This becomes a critical factor for the overall energy consumption, area, and performance of the systems. Loop transformations are essential to improve the data access locality and regularity in order to optimally design or utilize a memory hierarchy.(More)
The main goals of the 2PARMA project are: the definition of a parallel programming model combining component-based and single-instruction multiple-thread approaches, instruction set virtualisation based on portable byte-code, run-time resource management policies and mechanisms as well as design space exploration methodologies for many-core computing(More)
Data transfers and storage are dominating contributors to the area and power consumption for all modern multimedia applications. A cost-efficient realisation of these systems can be obtained by using high-level memory optimisations. This paper demonstrates that the state-of-the-art memory optimisation techniques only partly can deal with code from real-life(More)
The data transfers and storage are dominating contributors to the area and power consumption for all modern multimedia embedded systems. Modern high-level memory optimisations can ensure cost-efficient realisation of these systems. An important step in these optimisations are loop transformations performed on a geometrical model. However, these loop(More)
Nowadays, multimedia systems deal with huge amounts of memory accesses and large memory footprints. To alleviate the impact of these accesses and reduce the memory footprint, high-level memory exploration and optimization techniques have been proposed. These techniques try to more efficiently utilize the memory hierarchy. An important step in these(More)
We present a tool and a methodology for estimating the memory storage requirement for synchronous real-time video processing systems. Typically, a designer will use the feedback information from this estimation to select the most optimal execution order for software processors or space to time mapping for hardware. We propose to start from a conceptual(More)
Loop fusion and loop shifting are well recognized loop transformations for memory requirement reduction. State-of-the-art optimizations with loop fusion and shifting are based on heuristics without any evaluation of the resulting effects during each optimization step. Thus we cannot guarantee that each step results in a reduced overall memory requirement.(More)
A software-defined radio (SDR) system is a radio communication system in which physical layer components are implemented on a programmable or reconfigurable platform. The modulation and demodulation is performed in software and thus the radio is able to support a broad ran: of frequencies and functions concurrently. In the ideal SDR transceiver scheme, an(More)