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Multi-cores are the contemporary solution to satisfy high performance and low energy demands in general and embedded computing domains. However, currently available multi-cores are not feasible to be used in safety-critical environments with hard real-time constraints. Hard real-time tasks running on different cores must be executed in isolation or their(More)
To meet performance requirements as well as constraints on cost and power consumption, future embedded systems will be designed with multi-core processors. However, the question of timing analysability is raised with these architectures. In the MERASA project, a WCET-aware multicore processor has been designed with the appropriate system software. They both(More)
Engineers who design hard real-time embedded systems express a need for several times the performance available today while keeping safety as major criterion. A breakthrough in performance is expected by parallelizing hard real-time applications and running them on an embedded multi-core processor, which enables combining the requirements for(More)
In this paper we present synchronisation techniques for hard real-time (HRT) capable execution of parallelised applications on embedded multi-core processors. We show how commonly used software synchronisation techniques can be implemented in a time analysable way based on the proposed hardware primitives. We choose to implement the hardware synchronisation(More)
Hard real-time applications in safety-critical domains – namely avionics, automotive, and machinery – require high-performance and timing analysability. We present research results of the parallelisation and WCET analysis of an industrial hard real-time application, i.e. the control code of a large drilling machine from BAUER Maschinen GmbH. We reached a(More)
Processor technology is advancing from bus-based multicores to network-on-chip-based many cores, posing new challenges for operating system design. In this paper, we discuss why future safety-critical systems can profit from such new architectures. To make the potentials of many core processors usable in safety-critical systems, we devise the operating(More)
Hard real-time applications in safety critical domains require high performance and time analyzability. Multi-core processors are an answer to these demands, however task interferences make multi-cores more difficult to analyze from a worst-case execution time point of view than single-core processors. We propose a multi-core SMT processor that ensures a(More)