WANG Zhao, PEI Bing-xi, HE Wei-feng. An optical-electrical hybrid switching high performance computing interconnect network based on AWGR[J]. 2019, 36(8): 19-24.
WANG Zhao, PEI Bing-xi, HE Wei-feng. An optical-electrical hybrid switching high performance computing interconnect network based on AWGR[J]. 2019, 36(8): 19-24.DOI:
An optical-electrical hybrid switching high performance computing interconnect network based on AWGR
To satisfy the throughput and latency requirement of high-performance-computing interconnect network
a low-latency optical-electrical hybrid switching network structure based on arrayed waveguide grating router (AWGR) is proposed. On the basis of "Tianhe-Ⅱ" supercomputers network topology
part of electrical high-radix routers are replaced by non-blocking and contention-free AWGRs. The optical port of electrical router is re-designed to interface the optical packets with routers internal switching logics. To evaluate the performance of proposed network
a simulation model is developed using OMNeT++ software framework. The simulation shows that the data latency of hybrid switching network is 8%~10% lower than the electrical switching network.
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