The mesh of buses MBUSs is a parallel computation model which consists of n = n processors, n row buses, and n column buses, but no local connections between neighboring processors. An n lower bound for the permutation routing on this model is shown. The proof does not depend on common predetermined
Routing with Locality on Meshes with Buses
โ Scribed by Steven Cheung; Francis C.M. Lau
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 232 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0743-7315
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โฆ Synopsis
Routing with locality is studied for meshes with buses. In this problem, packets' distances are bounded by a value, d, which is less than the diameter of the network. This problem arises naturally when specific known algorithms are implemented on meshes. Solving this problem in ordinary meshes requires at least a routing time of d steps. To do better than this, we propose adding a kind of short bus to ordinary meshes. By using a technique which we call iterative walk-and-ride, we show how the routing time can be reduced by approximately one-third for solving the problem (including the multipacket version) on one-and two-dimensional short-bus meshes. The bounds we develop are tight.
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