2017 IEEE 3rd International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era (HiPINEB)最新文献

Early Experiences with Saving Energy in Direct Interconnection Networks 直接互联网络节能的早期经验

2017 IEEE 3rd International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era (HiPINEB) Pub Date : 2017-02-01 DOI: 10.1109/HiPINEB.2017.10

F. Zahn, S. Lammel, H. Fröning

{"title":"Early Experiences with Saving Energy in Direct Interconnection Networks","authors":"F. Zahn, S. Lammel, H. Fröning","doi":"10.1109/HiPINEB.2017.10","DOIUrl":"https://doi.org/10.1109/HiPINEB.2017.10","url":null,"abstract":"Energy is emerging to become one of the most crucial factors in design decisions for future large scale computing systems. Especially Exascale-installations will have to operate within hard power and energy constraints. Besides economical reasons, power consumption is also limited by a limited power distribution, cooling capabilities, and minimization of carbon footprints. While other components, such as processors, become more and more energy-proportional, interconnects are still highly energy-disproportional. Although interconnection networks are contributing only about 10-20% to the overall power consumption of High-Performance Computing (HPC) or Cloud systems, this fraction is likely to increase significantly in the near future. Therefore, power saving strategies are mandatory for improving energy efficiency and thereby performance within hard power constraints. In this work, we introduce a simple energy saving strategy, which switches links on and off, depending on the user's performance constraints. Therefore, we adapted an existing OMNeT++ network simulator by adding new energy features. This simulator allows us to run traces of real world applications, including LULESH, NAMD, and Graph500 with different configurations. We show that this policy enables possible energy savings of up to 39% in interconnection networks. Furthermore, we demonstrate the impact of hardware design parameters, such as transition time, on possible power saving strategies.","PeriodicalId":426494,"journal":{"name":"2017 IEEE 3rd International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era (HiPINEB)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130555185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

Dragonfly+: Low Cost Topology for Scaling Datacenters 蜻蜓+:用于扩展数据中心的低成本拓扑

2017 IEEE 3rd International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era (HiPINEB) Pub Date : 2017-02-01 DOI: 10.1109/HiPINEB.2017.11

Alexander Shpiner, Zachy Haramaty, Saar Eliad, Vladimir Zdornov, B. Gafni, E. Zahavi

引用次数: 49

Knapp: A Packet Processing Framework for Manycore Accelerators Knapp:多核加速器的包处理框架

2017 IEEE 3rd International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era (HiPINEB) Pub Date : 2017-02-01 DOI: 10.1109/HiPINEB.2017.8

Junhyun Shim, Joongi Kim, Keunhong Lee, S. Moon

引用次数: 2

New Link Arrangements for Dragonfly Networks 蜻蜓网络的新连线安排

2017 IEEE 3rd International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era (HiPINEB) Pub Date : 2017-02-01 DOI: 10.1109/HiPINEB.2017.14

M. Belka, Myra Doubet, S. Meyers, Rose L. Momoh, David Rincon-Cruz, David P. Bunde

引用次数: 4

Extending Commodity OpenFlow Switches for Large-Scale HPC Deployments 为大规模HPC部署扩展商用OpenFlow交换机

2017 IEEE 3rd International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era (HiPINEB) Pub Date : 2017-02-01 DOI: 10.1109/HiPINEB.2017.12

M. Benito, E. Vallejo, R. Beivide, C. Izu

{"title":"Extending Commodity OpenFlow Switches for Large-Scale HPC Deployments","authors":"M. Benito, E. Vallejo, R. Beivide, C. Izu","doi":"10.1109/HiPINEB.2017.12","DOIUrl":"https://doi.org/10.1109/HiPINEB.2017.12","url":null,"abstract":"Commodity Ethernet networks are used in many HPC systems. Extensions based on OpenFlow have been proposed for large HPC deployments, considering scalability and power consumption concerns. Such designs employ low-diameter topologies to minimize power consumption, such as Flattened Butterflies or Dragonflies. However, these topologies require non-minimal adaptive routing to deal with varying traffic characteristics and avoid pathological behaviors. The solutions to this issue in previous work relies on Ethernet Pauses to adapt minimal or non-minimal routing, depending on the availability (Pause status) of each corresponding output port. Nevertheless, such design provides an undesired high average latency under adversarial traffic patterns and a reduction in peak throughput under uniform traffic. This paper identifies the causes of the issues presented above, and presents a preliminary study of alternative solutions based on exploiting commodity congestion notification messages (QCN, 802.1Qau), currently available in Datacenter switches. This work presents the main differences between a congestion control mechanism such as QCN, which performs injection throttling reducing average network load, and an adaptive routing mechanism, which diverts traffic away from the congested area but increases average network load. In particular, it identifies the difficulty of separating the cases of uniform traffic at saturation and adversarial traffic at low loads.","PeriodicalId":426494,"journal":{"name":"2017 IEEE 3rd International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era (HiPINEB)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121269991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Isolating Jobs for Security on High-Performance Fabrics 在高性能结构上隔离作业以提高安全性

2017 IEEE 3rd International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era (HiPINEB) Pub Date : 2017-02-01 DOI: 10.1109/HiPINEB.2017.13

Matthieu Perotin, Tom Cornebize

引用次数: 0

A Case Study on Implementing Virtual 5D Torus Networks Using Network Components of Lower Dimensionality 利用低维网络组件实现虚拟5D环面网络的实例研究

2017 IEEE 3rd International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era (HiPINEB) Pub Date : 2017-02-01 DOI: 10.1109/HiPINEB.2017.7

Francisco J. Andújar, Juan A. Villar, J. L. Sánchez, F. J. Alfaro, J. Duato, H. Fröning

引用次数: 1