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HPCA
2001
IEEE

Self-Tuned Congestion Control for Multiprocessor Networks

14 years 4 months ago
Self-Tuned Congestion Control for Multiprocessor Networks
Network performance in tightly-coupled multiprocessors typically degrades rapidly beyond network saturation. Consequently, designers must keep a network below its saturation point by reducing the load on the network. Congestion control via source throttling--a common technique to reduce the network load--prevents new packets from entering the network in the presence of congestion. Unfortunately, prior schemes to implement source throttling either lack vital global information about the network to make the correct decision (whether to throttle or not) or depend on specific network parameters, network topology, or communication patterns. This paper presents a global-knowledge-based, selftuned, congestion control technique that prevents saturation at high loads across different network configurations and communication patterns. Our design is composed of two key components. First, we use global information about a network to obtain a timely estimate of network congestion. We compare this ...
Mithuna Thottethodi, Alvin R. Lebeck, Shubhendu S.
Added 01 Dec 2009
Updated 01 Dec 2009
Type Conference
Year 2001
Where HPCA
Authors Mithuna Thottethodi, Alvin R. Lebeck, Shubhendu S. Mukherjee
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