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The horizontal rotate crossed cube: HCQ interconnection network

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2 Author(s)
Horiguchi, S. ; Graduate Sch. of Inf. Sci., JAIST, Ishikawa, Japan ; Konuki, M.

Massively parallel computers have been used for high performance computation in advanced science and technology. The Hypercube (HC) network: has attractive properties such as strong connectivity, recursive interconnection, simple routing, and a good link complexity. However, as the number of processing elements (PEs) increases, the diameter and average distance of HC become large in proportion to a logarithm of the number of PEs. This causes a large latency in communication between PEs and consequently, it reduces system performance. To solve this problem, two approaches have been investigated. The first approach is a theoretical approach to find a network topology reducing a diameter and an average distance between PEs. The second approach reduces the physical distances between PEs by integrating a large interconnection on a small chip for a silicon wafer. In this paper, we propose a new interconnection network; The HCQ (Horizontal Rotate Crossed Cube) by taking into account a WSI implementation, Theoretical network properties such as the diameter, the average distance, a routing algorithm are discussed in detail. It is shown that HCQ is a suitable network topology for massively parallel computers for WSI

Published in:

Parallel Architectures, Algorithms, and Networks, 1997. (I-SPAN '97) Proceedings., Third International Symposium on

Date of Conference:

18-20 Dec 1997