{"627949":{"#nid":"627949","#data":{"type":"event","title":"Phd Proposal by Liang Liu","body":[{"value":"\u003Cp\u003ETitle: Optical and Hybrid Switching Scheduling in Data Center Networks\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cbr \/\u003E\r\nLiang Liu\u003Cbr \/\u003E\r\nPh.D. candidate in Computer Science\u003Cbr \/\u003E\r\nSchool of Computer Science\u003Cbr \/\u003E\r\nCollege of Computing\u003Cbr \/\u003E\r\nGeorgia Institute of Technology\u003Cbr \/\u003E\r\n\u003Cbr \/\u003E\r\nDate: Wednesday, October 30, 2019\u003Cbr \/\u003E\r\nTime: 10:00 - 12:00 (EST)\u003Cbr \/\u003E\r\nLocation: Klaus 3402\u003Cbr \/\u003E\r\n\u003Cbr \/\u003E\r\nCommittee:\u003Cbr \/\u003E\r\n------------\u003Cbr \/\u003E\r\nDr. Jun (Jim) Xu (Advisor, School of Computer Science, Georgia Institute of Technology)\u003Cbr \/\u003E\r\nDr. Mostafa H. Ammar (School of Computer Science, Georgia Institute of Technology)\u003Cbr \/\u003E\r\nDr. Ellen W. Zegura (School of Computer Science, Georgia Institute of Technology)\u003Cbr \/\u003E\r\nDr. Lance Fortnow (School of Computer Science, Illinois Institute of Technology)\u003Cbr \/\u003E\r\nDr. Mohit Singh (School of Industrial and Systems Engineering, Georgia Institute of Technology)\u003Cbr \/\u003E\r\n\u003Cbr \/\u003E\r\nAbstract:\u003Cbr \/\u003E\r\n-----------\u003Cbr \/\u003E\r\n\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EAs a cost-effective approach to the data center network scalability problem, hybrid-switched data center networks have received considerable research attention recently. A hybrid-switched data center network employs a much faster circuit switch that is reconfigurable with a nontrivial cost, and a much slower packet switch, to interconnect its racks of servers. The following optimization problem is the focus of most of the research works, including ours, on hybrid switching: Given a traffic demand (between the racks), how to properly schedule the circuit switch so that it removes most of the traffic\u0026nbsp;demand, leaving little for the slower packet switch to handle.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EIn this proposal, we will investigate two different topics along this road: First, in our primary study, we explored partial reconfigurability of hybrid-switched data center network and designed a scheduling algorithm, which not only outperforms but also has much lower computational complexity than the state-of-the-art solutions that do not exploit this partial reconfigurability. To simplify the scheduling problem, we put several unnecessary restrictions (e.g., direct routing only, non-preemptive) when we design this algorithm. These restrictions however could significantly limit the throughput performance. We propose to design advanced scheduling algorithms by removing these restrictions and further boost the throughput performance. Second, in some existing hybrid switching systems, each rack is equipped with multiple independent transmitters and receivers that can operate in parallel. We propose to investigate computationally efficient solutions for this new type hybrid-switched data center networks that can deliver ideal throughput performance.\u003C\/p\u003E\r\n\r\n\u003Cp\u003E_______________________________________________\u003Cbr \/\u003E\r\nPhd-coc-announce mailing list\u003Cbr \/\u003E\r\n\u003Ca href=\u0022mailto:Phd-coc-announce@cc.gatech.edu\u0022\u003EPhd-coc-announce@cc.gatech.edu\u003C\/a\u003E\u003Cbr \/\u003E\r\n\u003Ca href=\u0022https:\/\/mailman.cc.gatech.edu\/mailman\/listinfo\/phd-coc-announce\u0022 target=\u0022_blank\u0022\u003Ehttps:\/\/mailman.cc.gatech.edu\/mailman\/listinfo\/phd-coc-announce\u003C\/a\u003E\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":[{"value":"Optical and Hybrid Switching Scheduling in Data Center Networks "}],"uid":"27707","created_gmt":"2019-10-23 14:24:28","changed_gmt":"2019-10-23 14:24:28","author":"Tatianna Richardson","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2019-10-30T11:00:00-04:00","event_time_end":"2019-10-30T13:00:00-04:00","event_time_end_last":"2019-10-30T13:00:00-04:00","gmt_time_start":"2019-10-30 15:00:00","gmt_time_end":"2019-10-30 17:00:00","gmt_time_end_last":"2019-10-30 17:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"221981","name":"Graduate Studies"}],"categories":[],"keywords":[{"id":"102851","name":"Phd proposal"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1788","name":"Other\/Miscellaneous"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"78771","name":"Public"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[],"email":[],"slides":[],"orientation":[],"userdata":""}}}