• Competition Pool
    April 24 5:30am
    Lap Swim more »
  • Kindness Week: Conversation Hour: How Has, and Can, the UWC Support Connection
    April 24 1:00pm
    Join us for a conversation in CA 427 exploring how the Writing Center has, and can, support connection. Kindness Week is brought to you by the IUPUI University Writing Center. more »
  • Kindness Week: "Englishes, Racism, & Me: A Love Story" reading by Sydney Fleck
    April 24 5:00pm
    Join us in CA 427 for a reading of "Englishes, Racism, & Me: A Love Story," a narrative piece by UWC consultant and writing virtuoso Sydney Fleck! Kindness Week is brought to you by the IUPUI University Writing Center. more »
  • The Struggle to Create America's Holocaust Museum
    April 24 6:00pm
    Lecture by Dr. Edward T. Linenthal Professor of History, Indiana University IUPUI’s Department of Religious Studies invites you to join one of the country’s foremost academic authorities on memorials and sacred spaces for a lecture on the development, building, and impact of the U.S. Holocaust Memorial Museum. April more »
  • IUPUI Department of Music and Arts Technology - Acoustic Guitar Ensemble
    April 24 7:30pm
    Acoustic Guitar Ensemble more »
Monday, April 24, 2017
    IU Calendar




    • Competition Pool
      April 24 5:30am
      Lap Swim more »
    • Kindness Week: Conversation Hour: How Has, and Can, the UWC Support Connection
      April 24 1:00pm
      Join us for a conversation in CA 427 exploring how the Writing Center has, and can, support connection. Kindness Week is brought to you by the IUPUI University Writing Center. more »
    • Kindness Week: "Englishes, Racism, & Me: A Love Story" reading by Sydney Fleck
      April 24 5:00pm
      Join us in CA 427 for a reading of "Englishes, Racism, & Me: A Love Story," a narrative piece by UWC consultant and writing virtuoso Sydney Fleck! Kindness Week is brought to you by the IUPUI University Writing Center. more »
    • The Struggle to Create America's Holocaust Museum
      April 24 6:00pm
      Lecture by Dr. Edward T. Linenthal Professor of History, Indiana University IUPUI’s Department of Religious Studies invites you to join one of the country’s foremost academic authorities on memorials and sacred spaces for a lecture on the development, building, and impact of the U.S. Holocaust Memorial Museum. April more »
    • IUPUI Department of Music and Arts Technology - Acoustic Guitar Ensemble
      April 24 7:30pm
      Acoustic Guitar Ensemble more »
    Monday, April 24, 2017
      IU Calendar




      • Competition Pool
        April 24 5:30am
        Lap Swim more »
      • Kindness Week: Conversation Hour: How Has, and Can, the UWC Support Connection
        April 24 1:00pm
        Join us for a conversation in CA 427 exploring how the Writing Center has, and can, support connection. Kindness Week is brought to you by the IUPUI University Writing Center. more »
      • Kindness Week: "Englishes, Racism, & Me: A Love Story" reading by Sydney Fleck
        April 24 5:00pm
        Join us in CA 427 for a reading of "Englishes, Racism, & Me: A Love Story," a narrative piece by UWC consultant and writing virtuoso Sydney Fleck! Kindness Week is brought to you by the IUPUI University Writing Center. more »
      • The Struggle to Create America's Holocaust Museum
        April 24 6:00pm
        Lecture by Dr. Edward T. Linenthal Professor of History, Indiana University IUPUI’s Department of Religious Studies invites you to join one of the country’s foremost academic authorities on memorials and sacred spaces for a lecture on the development, building, and impact of the U.S. Holocaust Memorial Museum. April more »
      • IUPUI Department of Music and Arts Technology - Acoustic Guitar Ensemble
        April 24 7:30pm
        Acoustic Guitar Ensemble more »
      Monday, April 24, 2017
        IU Calendar




        • Competition Pool
          April 24 5:30am
          Lap Swim more »
        • Kindness Week: Conversation Hour: How Has, and Can, the UWC Support Connection
          April 24 1:00pm
          Join us for a conversation in CA 427 exploring how the Writing Center has, and can, support connection. Kindness Week is brought to you by the IUPUI University Writing Center. more »
        • Kindness Week: "Englishes, Racism, & Me: A Love Story" reading by Sydney Fleck
          April 24 5:00pm
          Join us in CA 427 for a reading of "Englishes, Racism, & Me: A Love Story," a narrative piece by UWC consultant and writing virtuoso Sydney Fleck! Kindness Week is brought to you by the IUPUI University Writing Center. more »
        • The Struggle to Create America's Holocaust Museum
          April 24 6:00pm
          Lecture by Dr. Edward T. Linenthal Professor of History, Indiana University IUPUI’s Department of Religious Studies invites you to join one of the country’s foremost academic authorities on memorials and sacred spaces for a lecture on the development, building, and impact of the U.S. Holocaust Memorial Museum. April more »
        • IUPUI Department of Music and Arts Technology - Acoustic Guitar Ensemble
          April 24 7:30pm
          Acoustic Guitar Ensemble more »
        Monday, April 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
            April 24 5:30am
            Lap Swim more »
          • Kindness Week: Conversation Hour: How Has, and Can, the UWC Support Connection
            April 24 1:00pm
            Join us for a conversation in CA 427 exploring how the Writing Center has, and can, support connection. Kindness Week is brought to you by the IUPUI University Writing Center. more »
          • Kindness Week: "Englishes, Racism, & Me: A Love Story" reading by Sydney Fleck
            April 24 5:00pm
            Join us in CA 427 for a reading of "Englishes, Racism, & Me: A Love Story," a narrative piece by UWC consultant and writing virtuoso Sydney Fleck! Kindness Week is brought to you by the IUPUI University Writing Center. more »
          • The Struggle to Create America's Holocaust Museum
            April 24 6:00pm
            Lecture by Dr. Edward T. Linenthal Professor of History, Indiana University IUPUI’s Department of Religious Studies invites you to join one of the country’s foremost academic authorities on memorials and sacred spaces for a lecture on the development, building, and impact of the U.S. Holocaust Memorial Museum. April more »
          • IUPUI Department of Music and Arts Technology - Acoustic Guitar Ensemble
            April 24 7:30pm
            Acoustic Guitar Ensemble more »
          Monday, April 24, 2017