Local Traffic-Based Energy-Efficient Hybrid Switching for On-Chip Networks
| Autor: | Masaaki Kondo, Yuan He, Jinyu Jiao |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Flow control (data) Circuit switching Hardware_MEMORYSTRUCTURES business.industry Computer science 02 engineering and technology 01 natural sciences 020202 computer hardware & architecture Network planning and design Control system 0103 physical sciences Hardware_INTEGRATEDCIRCUITS 0202 electrical engineering electronic engineering information engineering System on a chip Latency (engineering) business Computer network Electronic circuit Efficient energy use |
| Zdroj: | PDP |
| DOI: | 10.1109/pdp52278.2021.00039 |
| Popis: | Advanced flow control mechanisms employed by modern on-chip networks are the reasons of large energy footprint and long per-hop latency. On the other hand, dated and simpler flow controls such as circuit switching can draw far less power and offer an end-to-end latency analogous to wire delay. In this paper, we present a hybrid flow control mechanism, which mixes both virtual channels and circuit-switching, to provide a latency-competitive and energy-efficient on-chip network design. Contrary to existing hybrid switching designs, our proposal is based on local traffic so that circuits are formed without the knowledge of end-to-end traffic. When compared to on-chip networks with virtual channels, our proposal achieves a very competitive latency per flit, for up to 4% lower, while also dramatically suppressing the energy per flit by up to 18%. |
| Databáze: | OpenAIRE |
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