{"54897":{"#nid":"54897","#data":{"type":"event","title":"CSE Seminar: Abhinav Bhatele","body":[{"value":"\u003Ch4\u003EAbstract\u003C\/h4\u003E\u003Cp\u003EParallel computing is entering the era of petascale\nmachines. This era brings enormous computing power to us and new\nchallenges to harness this power efficiently. Machines with hundreds of\nthousands of processors already exist, connected by complex\ninterconnect topologies. Network contention is becoming an increasingly\nimportant factor affecting overall performance. The farther different\nmessages travel on the network, greater is the chance of resource\nsharing between messages and hence, of contention. Recent studies on\nIBM Blue Gene and Cray XT machines have shown that under contention,\nmessage latencies can be severely affected.\u003C\/p\u003E\u003Cp\u003EMapping of\ncommunicating tasks on nearby processors can minimize contention and\nlead to better application performance. In this talk, I will propose\nalgorithms and techniques for automatic mapping of parallel\napplications to relieve the application developers of this burden. I\nwill first demonstrate the effect of contention on message latencies\nand use these studies to guide the design of mapping algorithms. I will\nintroduce the hop-bytes metric for the evaluation of mapping algorithms\nand suggest that it is a better metric than the previously used maximum\ndilation metric. I will then discuss in some detail, the mapping\nframework which comprises of topology aware mapping algorithms for\nparallel applications with regular and irregular communication patterns.\u003C\/p\u003E\u003Cp\u003EI\nwill also briefly discuss my interests within and future ideas for\nparallel computing research. More details on my research available at:\n\u003Ca href=\u0022http:\/\/charm.cs.illinois.edu\/~bhatele\/phd\/\u0022 title=\u0022http:\/\/charm.cs.illinois.edu\/~bhatele\/phd\/\u0022\u003Ehttp:\/\/charm.cs.illinois.edu\/~bhatele\/phd\/\u003C\/a\u003E\u003Cbr \/\u003E\u0026nbsp;\u003Cbr \/\u003E\u003C\/p\u003E\u003Ch4\u003EBiography\u003C\/h4\u003E\u003Cp\u003EAbhinav\nreceived a B. Tech. degree in Computer Science and Engineering from\nI.I.T. Kanpur (INDIA) in May 2005 and a M. S. degree in Computer\nScience from the University of Illinois at Urbana-Champaign in 2007. He\nis a 5th year Ph.D. student at the Parallel Programming Lab at the\nUniversity of Illinois, working with Prof. Laxmikant V. Kale. His\nresearch is centered around topology aware mapping and load balancing\nfor parallel applications. Abhinav has received the David J. Kuck\nOutstanding MS Thesis Award in 2009, Third Prize in the ACM Student\nResearch Competition at SC 2008, a Distinguished Paper Award at\nEuro-Par 2009 and the George Michael HPC Fellowship Award at SC 2009.\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":"","field_summary_sentence":"","uid":"27174","created_gmt":"2010-03-11 17:06:50","changed_gmt":"2016-10-08 01:51:05","author":"Mike Terrazas","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2010-03-30T15:00:00-04:00","event_time_end":"2010-03-30T16:00:00-04:00","event_time_end_last":"2010-03-30T16:00:00-04:00","gmt_time_start":"2010-03-30 19:00:00","gmt_time_end":"2010-03-30 20:00:00","gmt_time_end_last":"2010-03-30 20:00:00","rrule":null,"timezone":"America\/New_York"},"extras":[],"groups":[{"id":"37041","name":"Computational Science and Engineering"},{"id":"47223","name":"College of Computing"},{"id":"50877","name":"School of Computational Science and Engineering"}],"categories":[],"keywords":[{"id":"3497","name":"cse seminar"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003EFor more information, contact Dr. \u003Ca href=\u0022mailto:richie@cc.gatech.edu\u0022\u003ERich Vuduc\u003C\/a\u003E.\u003C\/p\u003E","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}