Proceedings of the Ninth IEEE/ACM/IFIP International Conference on Hardware/Software Codesign and System Synthesis
Proceedings of the Ninth IEEE/ACM/IFIP International Conference on Hardware/Software Codesign and System Synthesis
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Modern embedded MPSoC designs increasingly couple hardware accelerators to processing cores to trade between energy efficiency and platform specialization. To assist effective design of such systems there is the need on one hand for clear methodologies to streamline accelerator definition and instantiation, on the other for architectural templates and run-time techniques that minimize processors-to-accelerator communication costs. In this paper we present an architecture featuring tightly-coupled processors and accelerators, with zero-copy communication. Efficient programming is supported by an extended OpenMP programming model, where custom directives allow to specialize code regions for execution on parallel cores, accelerators, or a mix of the two. Our integrated approach enables fast yet accurate exploration of accelerator-based HW and SW architectures.