Deadlock-Free Message Routing in Multiprocessor Interconnection Networks
IEEE Transactions on Computers
IEEE/ACM Transactions on Networking (TON)
The turn model for adaptive routing
Journal of the ACM (JACM)
Principles and Practices of Interconnection Networks
Principles and Practices of Interconnection Networks
Age-based packet arbitration in large-radix k-ary n-cubes
Proceedings of the 2007 ACM/IEEE conference on Supercomputing
Probabilistic Distance-Based Arbitration: Providing Equality of Service for Many-Core CMPs
MICRO '43 Proceedings of the 2010 43rd Annual IEEE/ACM International Symposium on Microarchitecture
Computer Architecture, Fifth Edition: A Quantitative Approach
Computer Architecture, Fifth Edition: A Quantitative Approach
Computer Networks, Fifth Edition: A Systems Approach
Computer Networks, Fifth Edition: A Systems Approach
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This paper presents the position-based weighted round-robin arbitration for equality of service in many-core network-on-chips employing a deterministic routing algorithm. We concentrate on the network saturation induced by the hot-spot traffic that occurs when the threads running on the system simultaneously access shared data, global shared locks, etc. It exploits the deterministic properties of the interconnect network---the topology and the routing algorithm. This leads to the omission of additional information in packet headers, compared to the previous approaches. The hardware overhead is minimal, requiring only the weight counters in addition to a typical round-robin arbiter. Compared with the previous work, the proposed algorithm also reduces the critical path delay due to its simplicity. Although designed against the hot-spot traffic, the proposed arbitration scheme shows little performance degradation under other traffic patterns in terms of the average latency and the saturation throughput.