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Link to original content: https://doi.org/10.1007/3-540-58426-9_156
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Reconfiguration of faulty hypercubes

  • Session 12: Switching networks and hypercubes
  • Conference paper
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Dependable Computing — EDCC-1 (EDCC 1994)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 852))

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Abstract

The problem of tolerating faulty nodes in hypercubes has been studied by many researchers either by using spares or by reconfiguration. In this paper, an algorithm for tolerating faulty nodes in hypercubes is presented. The algorithm is based on using general spanning trees for reconfiguring the hypercube to avoid faulty nodes. The algorithm contains two phases: the first phase involves the construction of the spanning tree, and the second one is for reconfiguring the hypercube should a faulty node be detected. The reconfiguration process introduced consists of two basic steps. First, the faulty node is disconnected from the spanning tree. Then, a new spanning tree is constructed by reconnecting the children of the faulty node to the spanning tree. This paper deals with reconfiguring faulty hypercubes; however, the same algorithm can be generalized to work for reconfiguration of multicomputer networks in general in the presence of faults. Single fault coverage of 100% and almost 100% fault coverage of double and triple faults are achieved by the proposed algorithm, with no extra-dilation for hypercubes having a dimension of n≥ 10. Simulation results for the algorithm under more than three faults also are presented. Fault coverage and congestion results for up to 60 faults having different cube sizes are discussed.

Research supported in part by NSF and by the Texas Advanced Technology Program under grant no. 999903-029.

This author is supported by King Fahd Univ. of Petroleum and Minerals, Saudi Arabia, Dhahran 31261

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Klaus Echtle Dieter Hammer David Powell

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© 1994 Springer-Verlag Berlin Heidelberg

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Avresky, D.R., Al-Tawil, K.M. (1994). Reconfiguration of faulty hypercubes. In: Echtle, K., Hammer, D., Powell, D. (eds) Dependable Computing — EDCC-1. EDCC 1994. Lecture Notes in Computer Science, vol 852. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-58426-9_156

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  • DOI: https://doi.org/10.1007/3-540-58426-9_156

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-58426-1

  • Online ISBN: 978-3-540-48785-2

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