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Belief-Propagation-Assisted Scheduling in Input-Queued Switches

Published: 01 October 2013 Publication History

Abstract

We consider the problem of scheduling the transmission of packets in an input-queued switch. In order to achieve maximum throughput, scheduling algorithms usually employ the queue length as a parameter for determining the priority to serve a given queue. In this work, we propose a novel scheme to optimize the performance of a preexisting scheduler. Our main idea is to assist the scheduling decision, considering "messagesâ rather than queue lengths. Such messages are obtained by running an iterative parallel algorithm, inspired by a rigorous belief-propagation approach. We demonstrate that belief-propagation-assisted scheduling is able to boost the performance of a given scheduler, reaching almost optimal throughput, even under critical traffic scenarios.

Cited By

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  • (2017)Queue-Proportional SamplingACM SIGMETRICS Performance Evaluation Review10.1145/3143314.307850945:1(4-4)Online publication date: 5-Jun-2017
  • (2017)Queue-Proportional SamplingProceedings of the ACM on Measurement and Analysis of Computing Systems10.1145/30844401:1(1-33)Online publication date: 13-Jun-2017
  • (2017)Queue-Proportional SamplingProceedings of the 2017 ACM SIGMETRICS / International Conference on Measurement and Modeling of Computer Systems10.1145/3078505.3078509(4-4)Online publication date: 5-Jun-2017
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Information & Contributors

Information

Published In

cover image IEEE Transactions on Computers
IEEE Transactions on Computers  Volume 62, Issue 10
October 2013
209 pages

Publisher

IEEE Computer Society

United States

Publication History

Published: 01 October 2013

Author Tags

  1. Computer architecture
  2. Convergence
  3. Fabrics
  4. Hardware
  5. Scheduling
  6. Switches
  7. Throughput
  8. belief propagation
  9. input-queued switches
  10. maximum weight matching problem
  11. router architectures

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Cited By

View all
  • (2017)Queue-Proportional SamplingACM SIGMETRICS Performance Evaluation Review10.1145/3143314.307850945:1(4-4)Online publication date: 5-Jun-2017
  • (2017)Queue-Proportional SamplingProceedings of the ACM on Measurement and Analysis of Computing Systems10.1145/30844401:1(1-33)Online publication date: 13-Jun-2017
  • (2017)Queue-Proportional SamplingProceedings of the 2017 ACM SIGMETRICS / International Conference on Measurement and Modeling of Computer Systems10.1145/3078505.3078509(4-4)Online publication date: 5-Jun-2017
  • (2014)On emulating hardware/software co-designed control algorithms for packet switchesProceedings of the 7th International ICST Conference on Simulation Tools and Techniques10.4108/icst.simutools.2014.254797(132-141)Online publication date: 17-Mar-2014

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