A Scalable NoC Router Design Providing QoS Support Using Weighted Round Robin Scheduling

Networks on Chip are the most promising approach to cope with communication requirements in future many core SoCs. Depending on the executed applications, communication requirements may vary at run-time. Dynamic reservation of communication resources in virtual channel NoCs is an encouraging approac...

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Vydané v:2012 IEEE 10th International Symposium on Parallel and Distributed Processing with Applications s. 625 - 632
Hlavní autori: Heißwolf, J., Konig, R., Becker, J.
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.07.2012
Predmet:
Bandwidth
Best Effort
Guaranteed Service
Networks-on-Chip
QoS
Quality of service
Round robin
Router Design
Routing
Scalability
Scalable
Throughput
Time division multiplexing
Weighted Round Robin Scheduling
ISBN:1467316318, 9781467316316
ISSN:2158-9178
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Abstract Networks on Chip are the most promising approach to cope with communication requirements in future many core SoCs. Depending on the executed applications, communication requirements may vary at run-time. Dynamic reservation of communication resources in virtual channel NoCs is an encouraging approach for connection-oriented communication guaranteeing QoS. This paper presents a concept enhancing virtual channel reservation to support different bandwidth and latency guarantees. The used weighted round robin scheduling provides hard guarantees regarding throughput and latency. The proposed router design enables dynamic sharing of communication resources between connectionless Best Effort and connection-oriented Guaranteed Service traffic. Due to decentralized routing and resource management it offers a very good scalability for future many core architectures. Simulation results are obtained from a 10x10 NoC with a cycle accurate SystemC router model. The presented results are compared to existing round robin arbitration schemes and show the advantage of the proposed concept. Synthesis results expose its low area overhead.
AbstractList Networks on Chip are the most promising approach to cope with communication requirements in future many core SoCs. Depending on the executed applications, communication requirements may vary at run-time. Dynamic reservation of communication resources in virtual channel NoCs is an encouraging approach for connection-oriented communication guaranteeing QoS. This paper presents a concept enhancing virtual channel reservation to support different bandwidth and latency guarantees. The used weighted round robin scheduling provides hard guarantees regarding throughput and latency. The proposed router design enables dynamic sharing of communication resources between connectionless Best Effort and connection-oriented Guaranteed Service traffic. Due to decentralized routing and resource management it offers a very good scalability for future many core architectures. Simulation results are obtained from a 10x10 NoC with a cycle accurate SystemC router model. The presented results are compared to existing round robin arbitration schemes and show the advantage of the proposed concept. Synthesis results expose its low area overhead.
Author Heißwolf, J.
Konig, R.
Becker, J.
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  givenname: R.
  surname: Konig
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  givenname: J.
  surname: Becker
  fullname: Becker, J.
  email: becker@kit.edu
  organization: Karlsruhe Inst. of Technol., Karlsruhe, Germany
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Snippet Networks on Chip are the most promising approach to cope with communication requirements in future many core SoCs. Depending on the executed applications,...
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StartPage 625
SubjectTerms Bandwidth
Best Effort
Guaranteed Service
Networks-on-Chip
QoS
Quality of service
Round robin
Router Design
Routing
Scalability
Scalable
Throughput
Time division multiplexing
Weighted Round Robin Scheduling
Title A Scalable NoC Router Design Providing QoS Support Using Weighted Round Robin Scheduling
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