Title
Worst-case traffic for oblivious routing functions
Abstract
This paper presents an algorithm to find a worst-case traffic pattern for any oblivious routing algorithm on an arbitrary interconnection network topology. The linearity of channel loading offered by oblivious routing algorithms enables the problem to be mapped to a bipartite maximum-weight matching, which can be solved in polynomial time for most practical routing functions. Finding exact worst-case performance was previously intractable, and we demonstrate an example case where traditional characterization techniques overestimate the throughput of a particular routing algorithm by 47%.
Year
DOI
Venue
2002
10.1145/564870.564872
IEEE Computer Architecture Letters
Keywords
DocType
Volume
oblivious routing function,bipartitemaximum-weight matching,obliviousrouting algorithm,interconnection networks,oblivious routing,worst-case traffic,channel loading,oblivious routing algorithm,practical routing function,exact worst-case performance,arbitrary interconnection network topology,worst-case throughput,overestimate thethroughput,bipartite maximum-weight matching,arbitrary interconnectionnetwork topology,exact worstcaseperformance,polynomial time,example case,worst-case traffic pattern,polynomial number,particular routing algorithm
Conference
1
Issue
ISSN
ISBN
1
1556-6056
1-58113-529-7
Citations 
PageRank 
References 
43
2.30
9
Authors
2
Name
Order
Citations
PageRank
Brian Towles12564195.45
William J. Dally2117821460.14