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CCGRID
2001
IEEE

An Adaptive, Reconfigurable Interconnect for Computational Clusters

9 years 11 months ago
An Adaptive, Reconfigurable Interconnect for Computational Clusters
This paper describes the principles of an original adaptive interconnect for a computational cluster. Torus topology (2d or 3d) is used as a basis but nodes are allowed to effectively migrate along the torus cycles. An optoelectronic scheme which makes such migrations possible with only local synchronisation is outlined. Between the instances of migration the interconnect behaves as a direct packet-routing network which constantly monitors its traffic parameters. A decentralised predictive algorithm is applied periodically to decide whether the current topology is consistent with the predominant traffic flow and if it is not, a reconfiguration to a better-matched topology occurs. We present simulation results that show that on some standard computational benchmarks a significant speedup is possible as a result of automatic matching between the effective topology of the application's message-passing infrastructure and that of the interconnect. 1 The case for reconfiguration In thi...
Alexander V. Shafarenko, Vladimir Vasekin
Added 23 Aug 2010
Updated 23 Aug 2010
Type Conference
Year 2001
Where CCGRID
Authors Alexander V. Shafarenko, Vladimir Vasekin
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