System virtualization allows resources of a single physical machine to be shared among multiple virtual machines (VMs). This can increase system flexibility, but it can also invalidate some assumption that the OS running in a VM has about the system it is executing on. This paper surveys the implementation of symmetric multiprocessing (SMP) in a virtualized environment. It examines two proposal...

This paper describes a way to get more flexibility in a real-time product and its base platform (realtime operating system and hardware). Industrial hardware and software platforms are due to change and in some cases a new platform is needed after five to ten years, if not earlier. This is costly and there is a need to be able to make the product grow in performance without changing the platfor...

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A deterministic cycle scheduling of partitions at the operating system level is supposed for a multiprocessor system. In this paper, we propose a tool for generating such schedules. We use constraint based programming and develop methods and concepts for a combined interactive and automatic partition scheduling system. This paper is also devoted to basic methods and techniques for modeling and ...

New method for the rigorous mathematical analysis of electronic synchronization systems is suggested. This method allows to calculate the characteristics of phase detectors and carry out a rigorous mathematical analysis of transient process and stability of the system.

DYNAMIC RECONFIGURATION OF INTERCONNECTION is important in today's multiprocessing computing systems. A reconfigurable network between processing elements is essential for systolic array, vector processing, or pipeline processing systems. This paper focuses on the development of a Link and INterconnection Chip (LINC), an interface chip optimized for dynamically reconfiguring the data flow and s...

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Supporting multi-gigabit/s of iSCSI over TCP can quickly saturate the processing abilities of a SMP server today. Legacy OS designs and APIs are not designed for the multi-gigabit IO speeds. Most of industry’s efforts had been focused on offloading the extra processing and memory load to the network adapter (NIC). As an alternative, this paper shows a software implementation of iSCSI on generic...

Approximation of solutions to diffusion equations with memory represented by convolution integral terms is considered. Such problems arise from modeling of flows in fissured media. Convergence of the method is proved and results of numerical experiments confirming the theoretical results are presented. The advantages of implementation of the algorithm in a multiprocessing environment are discus...