21 April 2006 Selective optical broadcasting in reconfigurable multiprocessor interconnects
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Abstract
Nowadays, multiprocessor systems are reaching their limits due to the large interconnection bottleneck between chips, but recent advances in the development of optical interconnect technologies can allow the use of low cost, scalable and reconfigurable networks to resolve the problem. In this paper, we make an initial evaluation of the performance gain on general network reconfigurability. In a next stage, we propose an optical system concept and describe a passive optical broadcasting component to be used as the key element in a broadcast-and-select reconfigurable network. We also discuss the available opto-electronic components and the restrictions they impose on network performance. Through detailed simulations of benchmark executions, we show that the proposed system architecture can provide a significant speedup for shared-memory machines, even when taking into account the limitations imposed by the opto-electronics and the presented optical broadcast component.
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Iñigo Artundo, Lieven Desmet, Wim Heirman, Christof Debaes, Joni Dambre, Jan Van Campenhout, Hugo Thienpont, "Selective optical broadcasting in reconfigurable multiprocessor interconnects", Proc. SPIE 6185, Micro-Optics, VCSELs, and Photonic Interconnects II: Fabrication, Packaging, and Integration, 61850J (21 April 2006); doi: 10.1117/12.662882; https://doi.org/10.1117/12.662882
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