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In multiprocessor systems, low-latency synchronization is extremely important to effectively exploit fine-grain data parallelism and improve overall performance. This brief presents an efficient synchronization for embedded distributed multiprocessors. The proposed solution works in a completely decentralized request–response manner via explicit message exchange among the processing elements. Scalable...
We explore a novel model of computation based on nodes that have no public addresses (ids). We define nodes as concurrent, message-passing computational entities in an abstract communication medium, similar to the Actor model, but with all public node ids elided. Instead, drawing inspiration from biological systems, we postulate a send-to-behavior language construct to enable anonymous one-way communication...
We propose a programmable heterogeneous multi-processor system-on-chip (MPSoC) platform architecture for flexible radio processing that aims at striking a balance between performance (as provided by ASICs) and flexibility (as provided by SDR). Based on a novel hardware-oriented Virtual Flow Pipelining (VFP) framework, the key highlights of this solution are a simple task-level programming model for...
The advent of embedded systems with greater capacity in terms of processing and general functionality has given rise to the recent use of embedded clusters, as seen in Singapore's satellite mission, X-Sat. This paper presents a Linux-based concurrent system of embedded network nodes, interconnected by Ethernet. It is formed of readily available components and is configured as a standard, commodity-based...
In this article, we present an original MPI-based adaptive task migration support for the HS-Scale system. Our previous communication API was modified in order to be MPI compliant. In order to enable task migration without any MMU, a Position Independent Code compilation technique is implemented. The self-adaptability is based on monitoring information collected at run-time by each processing element...
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