Title: Application-specific permutation networks

Authors: Thorsten Drager, Gerhard P. Fettweis

Addresses: Signalion GmbH, Dresden, Germany. ' Vodafone Chair Mobile Communications Systems, Technische Universitat Dresden, Germany

Abstract: This paper examines some aspects of the usage of applications specific interconnection networks for highly parallel processors. The networks are based on permutations. Hence, group theoretic methods may be applied to systematically find good networks. Three methods are presented in this paper: partial Schreier Trees, reduced stabiliser chains, and scaling. These methods allow optimum performance for the application specific transfers, and offer compromises between performance of the remaining transfers, and the effort for finding the solution. The combination of all three methods is shown in a case study with a permutation network for a 16-fold processor.

Keywords: interconnection networks; instruction sets; data transfer; application-specific networks; group theory; parallel processing; group theory; permutation networks.

DOI: 10.1504/IJES.2008.022391

International Journal of Embedded Systems, 2008 Vol.3 No.4, pp.199 - 208

Available online: 03 Jan 2009 *

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