NOTES on [efficient and cost-effective Hybrid congestion Control for HPC interconnection Networks]

Efficient and cost-effective Hybrid congestion Control for HPC interconnection Networks

Abstract-interconnection Networks is key components in High-performance Computing (HPC) systems, their performance have A strong influence on the overall system one. However, at high load, congestion and its negative effects (e.g., head-of-line blocking) threaten the performance of the N Etwork, and so the one of the entire system. Congestion control (CC) is crucial to ensure an efficient utilization of the interconnection network during congestion sit Uations. As one major trend is to reduce the effective wiring in interconnection networks to reduce cost and power consumption, the Network would operate very close to its capacity. Thus, congestion control becomes essential. Existing CC techniques can is divided into the general approaches. One is to throttle traffic injection at the sources that contribute to congestion, and the and the other are to isolate the Congest Ed traffic in specially designated resources. However, both approaches has different, but non-overlapping weaknesses:injection Throttling techniques has a slow reaction against congestion, while isolating traffic in special resources may leads the System to run out of those resources. In this paper we propose ECOCC, a new efficient and cost-effective CC technique, that combines injection throttling and co Ngested-flow isolation to minimize their respective drawbacks and maximize overall system performance. This new strategy are suitable for the current commercial switch architectures, where it could be implemented without requiring Significant complexity. Experimental results, using simulations under synthetic and real trace-based traffic patterns, show that this technique IM proves by-to-percent over some of the most successful congestion control techniques. 

Concerns: Internet "congestion control (CC)"

Existing CC technology and presence problems (two technologies are problematic and do not overlap):

• Control source node flow (long reaction time)
• Isolate congested traffic (resource exhaustion issues)

The article proposes the proposal: ECOCC

• Combination of source control and isolation to improve system performance

NOTES on [efficient and cost-effective Hybrid congestion Control for HPC interconnection Networks]