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Issue No.02 - February (2006 vol.17)
pp: 174-190
Wai Hong Ho , IEEE Computer Society
<p><b>Abstract</b>—As the level of chip integration continues to advance at a fast pace, the desire for efficient interconnects—whether on-chip or off-chip—is rapidly increasing. Traditional interconnects like buses, point-to-point wires, and regular topologies may suffer from poor resource sharing in the time and space domains, leading to high contention or low resource utilization. In this paper, we propose a design methodology for constructing networks for special-purpose computer systems with well-behaved (known) communication characterictics. A temporal and spatial model is proposed to define the sufficient condition for contention-free communication. Based upon this model, a design methodology using a recursive bisection technique is applied to systematically partition a parallel system such that the required number of links and switches is minimized while achieving low contention. Results show that the design methodology can generate more optimized on-chip networks with up to 60 percent fewer resources than meshes or tori while providing blocking performance closer to that of a fully connected crossbar.</p>
On-chip interconnects, communication model, low-contention communication, network partitioning, irregular topology.
Wai Hong Ho, Timothy Mark Pinkston, "A Design Methodology for Efficient Application-Specific On-Chip Interconnects", IEEE Transactions on Parallel & Distributed Systems, vol.17, no. 2, pp. 174-190, February 2006, doi:10.1109/TPDS.2006.15
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