In addition to coming to the talk at RPI, everyone is welcome to join students and faculty for an informal gathering with Jack at Union College in Butterfield 203 from 10:30 to 11:30 in the morning of 4/2.
In this talk we examine how high performance computing has changed over the last 10-years and look toward the future in terms of trends. These changes have had and will continue to have a major impact on our software. Some of the software and algorithm challenges have already been encountered, such as management of communication and memory hierarchies through a combination of compile-time and run-time techniques, but the increased scale of computation, depth of memory hierarchies, range of latencies, and increased run-time environment variability will make these problems much harder. We will look at five areas of research that will have an important impact on the development of software and algorithms.
We will focus on the following themes:
- Redesign of software to fit multicore and hybrid architectures
- Automatically tuned application software
- Exploiting mixed precision for performance
- The importance of fault tolerance
- Communication avoiding algorithms
The community provides everything from operating system components to compilers and advanced math libraries. As an international community, however, we have only loosely coordinated activities and plans for development. The new rapidly changing technologies in multicore, power consumption, GPGPUs, and memory architectures creates an opportunity for the community to work together and build an international program to design, build, and deliver the software so critical to the science goals of our institutions. To help plan how the international community could build a partnership to provide the next generation of HPC software to support scientific discover, we will discuss the International Exascale Software Project’s Roadmap.
Bio: Jack Dongarra received a Bachelor of Science in Mathematics from Chicago State University in 1972 and a Master of Science in Computer Science from the Illinois Institute of Technology in 1973. He received his Ph.D. in Applied Mathematics from the University of New Mexico in 1980. He worked at the Argonne National Laboratory until 1989, becoming a senior scientist. He now holds an appointment as University Distinguished Professor of Computer Science in the Computer Science Department at the University of Tennessee and holds the title of Distinguished Research Staff in the Computer Science and Mathematics Division at Oak Ridge National Laboratory (ORNL), Turing Fellow at Manchester University, and an Adjunct Professor in the Computer Science Department at Rice University. He is the director of the Innovative Computing Laboratory at the University of Tennessee. He is also the director of the Center for Information Technology Research at the University of Tennessee which coordinates and facilitates IT research efforts at the University.