DC Field | Value | Language |
---|---|---|
dc.contributor.author | KIM, GWANGSUN | - |
dc.contributor.author | CHOI, HAYOUNG | - |
dc.contributor.author | KIM, JOHN | - |
dc.date.accessioned | 2018-12-04T02:50:02Z | - |
dc.date.available | 2018-12-04T02:50:02Z | - |
dc.date.created | 2018-11-12 | - |
dc.date.issued | 2018-06-06 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/94398 | - |
dc.description.abstract | High-radix topologies in large-scale networks provide low network diameter and high path diversity, but the idle power from high-speed links results in energy inefficiency, especially at low traffic load. In this work, we exploit the high path diversity and non-minimal adaptive routing in high-radix topologies to consolidate traffic to a smaller number of links to enable more network channels to be power-gated. In particular, we propose TCEP (Traffic Consolidation for Energy-Proportional high-radix networks), a distributed, proactive power management mechanism for large-scale networks that achieves energy-proportionality by proactively power-gating network channels through traffic consolidation. Instead of naively power-gating the least utilized link, TCEP differentiates links with the type of traffic (i.e., minimally vs. non-minimally routed traffic) on them since the performance impact of power-gating on minimal traffic is greater than non-minimal traffic. The performance degradation from the reduced number of channels is minimized by concentrating available links to a small number of routers, instead of distributing them across the network, to maximize path diversity. TCEP introduces a shadow link to quickly reactivate an inactive link and Power-Aware progressive Load-balanced (PAL) routing algorithm that incorporates the link power states in load-balancing the network. Our evaluations show that TCEP achieves significantly higher throughput across various traffic patterns while providing comparable energy savings for real workloads, compared to a prior approach proposed for the flattened butterfly topology. | - |
dc.language | English | - |
dc.publisher | IEEE, ACM | - |
dc.relation.isPartOf | The 45th International Symposium on Computer Architecture | - |
dc.relation.isPartOf | Proceedings of 2018 ACM/IEEE 45th Annual International Symposium on Computer Architecture (ISCA) | - |
dc.title | TCEP: Traffic Consolidation for Energy-Proportional High-Radix Networks | - |
dc.type | Conference | - |
dc.type.rims | CONF | - |
dc.identifier.bibliographicCitation | The 45th International Symposium on Computer Architecture | - |
dc.citation.conferenceDate | 2018-06-01 | - |
dc.citation.conferencePlace | US | - |
dc.citation.conferencePlace | Los Angeles, CA, USA | - |
dc.citation.title | The 45th International Symposium on Computer Architecture | - |
dc.contributor.affiliatedAuthor | KIM, GWANGSUN | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.