Abstract
Current trends in technology scaling, coupled with the increasing compute demands with a limited power budget, has spurred research into specialized accelerator architectures. Coarse-Grained Reconfigurable Architectures (CGRAs) have been shown to achieve higher performance and energy efficiency compared to conventional instruction-based architectures by avoiding instruction overheads with reconfigurable data and control paths. CGRAs also avoid the hardware and programming overheads of fine-grained alternatives such as Field-Programmable Gate Arrays (FPGAs) by raising the hardware abstraction. Designing efficient CGRAs requires a careful calibration of the granularity of its elements and building automated compilation flow to map high-level programs to the reconfigurable elements. This chapter reviews the challenges and opportunities in the field of CGRAs.
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Prabhakar, R., Zhang, Y., Olukotun, K. (2020). Coarse-Grained Reconfigurable Architectures. In: Murmann, B., Hoefflinger, B. (eds) NANO-CHIPS 2030. The Frontiers Collection. Springer, Cham. https://doi.org/10.1007/978-3-030-18338-7_14
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