Principles and Practices of Interconnection Networks
Principles and Practices of Interconnection Networks
Optical Switching and Networking
Computers and Electrical Engineering
Determination of fault tolerance and latency of all optical switch: the augmented data vortex
WOC '08 Proceedings of the Eighth IASTED International Conference on Wireless and Optical Communications
Terminal reliability evaluation of the augmented data vortex all optical interconnection network
COMSNETS'10 Proceedings of the 2nd international conference on COMmunication systems and NETworks
Optical interconnection reverse data vortex network: performance analysis
Photonic Network Communications
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Modern high-performance computing systems require networks with high capacity, extremely high throughput and low latency in order to pass messages between thousands of processors and memory elements. Optical Interconnection Networks (OIN) offer a potentially viable solution to this requirement. An all-optical packet switched interconnection network called a Data Vortex (DV) switch has already been proposed by Yang et al. for the purpose of large scale photonic interconnections. For any interconnection network, fault tolerance and reliability are crucial issues, evaluation of which lacked attention for the case of the DV switch. In our earlier work we therefore presented the results for fault tolerance and reliability analysis of the primary DV switch. We also proposed a new Augmented Data Vortex (ADV) switch fabric, to improve the fault tolerance of the primary DV switch. The performance as regards fault tolerance of the ADV switch was computed and detailed results were obtained. In this paper, performance of ADV is investigated with reference to parameters such as latency and injection ratio (throughput) by means of numerical simulations. A uniform random traffic model has been used for the performance evaluation. The results obtained are compared with the results reported for the DV switch. The results show that the ADV switch with enhanced fault tolerance also improves the performance regarding latency. For same switch sizes (i.e. the same number of angles A, and height H) the injection ratios (throughput) for the DV and the ADV switches are comparable. Hence it can serve as a suitable candidate for high performance computing.