Congestion control in wormhole networks: First results
We present the first results of a congestion control scheme for computer wormhole networks. The basic idea of this scheme is to require preselected nodes to restrict their packet injection in order to reduce and possibly eliminate congestion in the whole network. The scheme employs randomization to select nodes. Our preliminary performance measurements indicate clearly that the proposed scheme improves network performance. Some of the remaining studies are implementation cost, such as the impact of the scheme on the input/ output queues in the nodes. Another further study would be to compare such flow control schemes with other trends such as that of adaptive routing algorithms.
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