Abstract
We propose an efficient multipath routing algorithm for routing multiple data packets in parallel over node-disjoint paths on a 3D torus Network-on-Chip. We show how to build node-disjoint paths between any two nodes of the 3D torus topology and how to use these paths to build routing tables. Analytical performance evaluation results for the proposed multipath routing algorithm are derived. The obtained results have shown that using the proposed multipath routing algorithm allows tolerating much higher traffic loads (between 4 times and 6 times higher), compared to single path routing. These results show the effectiveness of the proposed multipath routing algorithm in reducing communication delays and increasing throughput when transferring large amounts of data in a 3D Network-on-Chip based multi-core system.
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