دانلود مقاله ISI انگلیسی شماره 148317
کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
148317 2017 45 صفحه PDF سفارش دهید 10171 کلمه
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عنوان انگلیسی
MorphoNoC: Exploring the design space of a configurable hybrid NoC using nanophotonics
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Microprocessors and Microsystems, Volume 50, May 2017, Pages 113-126

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چکیده انگلیسی

As diminishing feature sizes drive down the energy for computations, the power budget for on-chip communication is steadily rising. Furthermore, the increasing number of cores is placing a huge performance burden on the network-on-chip (NoC) infrastructure. While NoCs are designed as regular architectures that allow scaling to hundreds of cores, the lack of a flexible topology gives rise to higher latencies, lower throughput, and increased energy costs. In this paper, we explore MorphoNoCs - scalable, configurable, hybrid NoCs obtained by extending regular electrical networks with configurable nanophotonic links. In order to design MorphoNoCs, we first carry out a detailed study of the design space for Multi-Write Multi-Read (MWMR) nanophotonics links. After identifying optimum design points, we then discuss the router architecture for deploying them in hybrid electronic-photonic NoCs. We then study the design space at the network level, by varying the waveguide lengths and the number of hybrid routers. This affords us to carry out energy-latency trade-offs. For our evaluations, we adopt traces from synthetic benchmarks as well as the NAS Parallel Benchmark suite. Our results indicate that MorphoNoCs can achieve latency improvements of up to 3.0× or energy improvements of up to 1.37× over the base electronic network.

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