• Competition Pool
    May 24 5:30am
    Lap swim more »
  • IU Pediatric Dental Alumni Suite
    May 25 12:00am
    For more information please contact Karen Jones at kdeery@iupui.edu or 317-274-8959. more »
  • Excel 2016: The Basics
    May 25 9:00am
    This session is being delivered online and simultaneously in room 144 in Wells Library in Bloomington. This is the online session, so please register for this session only if you plan to attend remotely. This workshop lasts 3 hours, a more »
  • IU Simon Cancer Center Summer Research Program Welcome Dinner
    May 25 4:00pm
    The IU Simon Cancer Center Summer Research Program aims to increase the number of undergraduate students from underrepresented populations pursuing biomedical and behavioral science careers by providing positive and meaningful firsthand exposure to these fields.   Tonight is the welcome dinner more »
  • Organizations and Religion; Religion, Spirituality, Healthcare, and Ethics Seminar
    May 25 6:00pm
    Facilitators:  Steven S. Ivy, PhD & David Craig, PhD Dinner and books will be provided free of charge. RSVP to srush7@iuhealth.org by May 11 so we can mail books and plan the meal. PLEASE PROVIDE A MAILING ADDRESS, CAMPUS OR US MAIL.   Readings:  Craig, D.M. (2014). Health care as a social good : religious more »
Wednesday, May 24, 2017
    IU Calendar




    • Competition Pool
      May 24 5:30am
      Lap swim more »
    • IU Pediatric Dental Alumni Suite
      May 25 12:00am
      For more information please contact Karen Jones at kdeery@iupui.edu or 317-274-8959. more »
    • Excel 2016: The Basics
      May 25 9:00am
      This session is being delivered online and simultaneously in room 144 in Wells Library in Bloomington. This is the online session, so please register for this session only if you plan to attend remotely. This workshop lasts 3 hours, a more »
    • IU Simon Cancer Center Summer Research Program Welcome Dinner
      May 25 4:00pm
      The IU Simon Cancer Center Summer Research Program aims to increase the number of undergraduate students from underrepresented populations pursuing biomedical and behavioral science careers by providing positive and meaningful firsthand exposure to these fields.   Tonight is the welcome dinner more »
    • Organizations and Religion; Religion, Spirituality, Healthcare, and Ethics Seminar
      May 25 6:00pm
      Facilitators:  Steven S. Ivy, PhD & David Craig, PhD Dinner and books will be provided free of charge. RSVP to srush7@iuhealth.org by May 11 so we can mail books and plan the meal. PLEASE PROVIDE A MAILING ADDRESS, CAMPUS OR US MAIL.   Readings:  Craig, D.M. (2014). Health care as a social good : religious more »
    Wednesday, May 24, 2017
      IU Calendar




      • Competition Pool
        May 24 5:30am
        Lap swim more »
      • IU Pediatric Dental Alumni Suite
        May 25 12:00am
        For more information please contact Karen Jones at kdeery@iupui.edu or 317-274-8959. more »
      • Excel 2016: The Basics
        May 25 9:00am
        This session is being delivered online and simultaneously in room 144 in Wells Library in Bloomington. This is the online session, so please register for this session only if you plan to attend remotely. This workshop lasts 3 hours, a more »
      • IU Simon Cancer Center Summer Research Program Welcome Dinner
        May 25 4:00pm
        The IU Simon Cancer Center Summer Research Program aims to increase the number of undergraduate students from underrepresented populations pursuing biomedical and behavioral science careers by providing positive and meaningful firsthand exposure to these fields.   Tonight is the welcome dinner more »
      • Organizations and Religion; Religion, Spirituality, Healthcare, and Ethics Seminar
        May 25 6:00pm
        Facilitators:  Steven S. Ivy, PhD & David Craig, PhD Dinner and books will be provided free of charge. RSVP to srush7@iuhealth.org by May 11 so we can mail books and plan the meal. PLEASE PROVIDE A MAILING ADDRESS, CAMPUS OR US MAIL.   Readings:  Craig, D.M. (2014). Health care as a social good : religious more »
      Wednesday, May 24, 2017
        IU Calendar




        • Competition Pool
          May 24 5:30am
          Lap swim more »
        • IU Pediatric Dental Alumni Suite
          May 25 12:00am
          For more information please contact Karen Jones at kdeery@iupui.edu or 317-274-8959. more »
        • Excel 2016: The Basics
          May 25 9:00am
          This session is being delivered online and simultaneously in room 144 in Wells Library in Bloomington. This is the online session, so please register for this session only if you plan to attend remotely. This workshop lasts 3 hours, a more »
        • IU Simon Cancer Center Summer Research Program Welcome Dinner
          May 25 4:00pm
          The IU Simon Cancer Center Summer Research Program aims to increase the number of undergraduate students from underrepresented populations pursuing biomedical and behavioral science careers by providing positive and meaningful firsthand exposure to these fields.   Tonight is the welcome dinner more »
        • Organizations and Religion; Religion, Spirituality, Healthcare, and Ethics Seminar
          May 25 6:00pm
          Facilitators:  Steven S. Ivy, PhD & David Craig, PhD Dinner and books will be provided free of charge. RSVP to srush7@iuhealth.org by May 11 so we can mail books and plan the meal. PLEASE PROVIDE A MAILING ADDRESS, CAMPUS OR US MAIL.   Readings:  Craig, D.M. (2014). Health care as a social good : religious more »
        Wednesday, May 24, 2017

          About This Event

          Summary

          Summary

          High end parallel and multi-core processors rely on compilers to perform the necessary optimizations and exploit concurrency in order to achieve higher performance. However, source code for high performance computers is extremely complex to analyze and optimize. In particular, program analysis techniques often do not take into account complex expressions during the data dependence analysis phase. Most data dependence tests are only able to analyze linear expressions, even though non-linear expressions occur very often in practice. Therefore, considerable amounts of potential parallelism remain unexploited. In this talk we propose new data dependence analysis techniques to handle such complex instances of the dependence problem and increase program parallelization. Our method is based on a set of polynomial time techniques that can prove or disprove dependences in source codes with non-linear and symbolic expressions, complex loop bounds, arrays with coupled subscripts, and if-statement constraints. In addition our algorithm can produce accurate and complete direction vector information, enabling the compiler to apply further transformations. To validate our method we performed an experimental evaluation and comparison against the I-Test, the Omega test and the Range test in the Perfect and SPEC benchmarks. The experimental results indicate that our dependence analysis tool is accurate, efficient and more effective in program parallelization than the other dependence tests. The improved parallelization results into higher speedups and better program execution performance in several benchmarks.

          Kleanthis Psarris is Professor and Chair of the Department of Computer Science at the University of Texas at San Antonio. He received his B.S. degree in Mathematics from the National University of Athens, Greece in 1984. He received his M.S. degree in Computer Science in 1987, his M.Eng. degree in Electrical Engineering in 1989 and his Ph.D. degree in Computer Science in 1991, all from Stevens Institute of Technology in Hoboken, New Jersey. His research interests are in the areas of Parallel and Distributed Systems, Programming Languages and Compilers, and High Performance Computing. He has designed and implemented state of the art program analysis and compiler optimization techniques and he developed compiler tools to increase program parallelization and improve execution performance on advanced computer architectures. He has published extensively in top journals and conferences in the field and his research has been funded by the National Science Foundation and Department of Defense agencies. He is an Editor of the Parallel Computing journal. He has served on the Program Committees of several international conferences including the ACM International Conference on Supercomputing (ICS) in 1995, 2000, 2006 and 2008, the IEEE International Conference on High Performance Computing and Communications (HPCC) in 2008, 2009, and 2010, and the ACM Symposium on Applied Computing (SAC) in 2003, 2004, 2005 and 2006.

          This seminar will be held on Thursday, January 27th at 11:15 am in SL 110

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          Contact Information

          DeeDee Whittaker
          whittakd@cs.iupui.edu

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          Event Schedule

          There are no upcoming dates for this event.

          IU Calendar




          • Competition Pool
            May 24 5:30am
            Lap swim more »
          • IU Pediatric Dental Alumni Suite
            May 25 12:00am
            For more information please contact Karen Jones at kdeery@iupui.edu or 317-274-8959. more »
          • Excel 2016: The Basics
            May 25 9:00am
            This session is being delivered online and simultaneously in room 144 in Wells Library in Bloomington. This is the online session, so please register for this session only if you plan to attend remotely. This workshop lasts 3 hours, a more »
          • IU Simon Cancer Center Summer Research Program Welcome Dinner
            May 25 4:00pm
            The IU Simon Cancer Center Summer Research Program aims to increase the number of undergraduate students from underrepresented populations pursuing biomedical and behavioral science careers by providing positive and meaningful firsthand exposure to these fields.   Tonight is the welcome dinner more »
          • Organizations and Religion; Religion, Spirituality, Healthcare, and Ethics Seminar
            May 25 6:00pm
            Facilitators:  Steven S. Ivy, PhD & David Craig, PhD Dinner and books will be provided free of charge. RSVP to srush7@iuhealth.org by May 11 so we can mail books and plan the meal. PLEASE PROVIDE A MAILING ADDRESS, CAMPUS OR US MAIL.   Readings:  Craig, D.M. (2014). Health care as a social good : religious more »
          Wednesday, May 24, 2017