Title
Efficient algorithms for checking the equivalence of multistage interconnection networks
Abstract
In this paper we study the topological equivalence problem of multistage interconnection networks (MINs). We prove a new characterization of topologically equivalent MINs by means of a novel approach. Applying this characterization to log N stage MINs we completely describe the equivalence class which the Reverse Baseline belongs to. Most important, we apply the characterization to (2 log N - 1) stage MINs obtained as concatenation of two log N stage Reverse Baseline equivalent MINs: in this way, we deduce an O(N log N) time algorithm testing the equivalence of two such MINs. This result substantially improves the time complexity of the previously known algorithms (O(N4 log N)). Finally, we determine the number of different equivalence classes of (2 log N - 1) stage MINs and we characterize each of them.
Year
DOI
Venue
2004
10.1016/j.jpdc.2003.09.003
J. Parallel Distrib. Comput.
Keywords
Field
DocType
layered cross,n log,stage mins,topologically equivalent mins,efficient algorithm,multistage interconnection networks,n4 log,different equivalence class,topological equivalence problem,equivalence class,baseline equivalent mins,topological equivalence,n stage,log n stage,multistage interconnection network
Binary logarithm,Discrete mathematics,Combinatorics,Algorithm,Multistage interconnection networks,Topological equivalence,Equivalence (measure theory),Topological conjugacy,Concatenation,Equivalence class,Time complexity,Mathematics
Journal
Volume
Issue
ISSN
64
1
Journal of Parallel and Distributed Computing
Citations 
PageRank 
References 
3
0.43
13
Authors
2
Name
Order
Citations
PageRank
Tiziana Calamoneri151146.80
Annalisa Massini213715.53