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SCaLeS

Science Case for Large-scale Simulation

Breakout Sessions

Applications Breakout Sessions (June 24, 2003)
Mathematical Methods Breakout Sessions (June 25, 2003)
Computer Science and Infrastructure Breakout Sessions (June 25, 2003)

 

Session Topic
Session Leads
Accelerator Modeling Kwok Ko and Rob Ryne 
Astrophysics Tony Mezzacappa and Bob Rosner
Biology
  • cellular biology
  • genomics
  • systems biology
    		•  Mike Colvin and George Michaels
    Chemistry (Abstract) Robert Harrison and Theresa Windus
    Climate/Earth Science (offsite) (Abstract) John Drake, Phil Jones, and Bob Malone
    Combustion John Bell and Larry Rahn
    Environmental Remediation/Processes
  • porous media
  • bio geochemistry
    		•  Mary Wheeler and Steve Yabusaki
    Materials Science Francois Gygi and Malcolm Stocks
    Nanoscience Peter Cummings and Lin-wang Wang
    Plasma Science (Abstract)
  • magnetic fusion
  • heavy-ion fusion
  • space plasmas
    		•  Steve Jardin and Bill Nevins
    QCD (Abstract)

    Quantum Chromodynamics (QCD) is the theory of the strong interactions in particle and nuclear physics. Many of its most important predictions can only be obtained through large scale numerical simulations. Participants in this breakout session will discuss the scientific objectives of these simulations, and the time frame in which these objectives must be met in order to provide support for experimental programs in high energy and nuclear physics. They will identify the hardware, software and human resources required by the field, paying particular attention to the manner in which the special features of QCD should influence the design of hardware and software. They will discuss major bottlenecks in hardware, software and algorithms, as well as strategies for overcoming them.
    		 Bob Sugar
    CFD/MHD Phil Colella and Paul Fischer
    Discrete Mathematics (Abstract) Bruce Hendrickson and Alex Pothen
    Solvers and "Fast" Algorithms (Abstract) Van Henson and Juan Meza
    Meshing Methods (Abstract) Lori Freitag, David Serafini, David L. Brown
    Multi-physics Solution Techniques (Abstract)

    The multi-physics techniques breakout session is concerned with robust and efficient numerical methods for solving coupled nonlinear systems, typically with multiple timescales that force at least one subsystem to be treated implicitly. The application systems might couple, for example, fluid mechanics, solid mechanics, thermal energy transfer, mass transfer with chemical reactions, electromagnetics, radiation transfer, particle transfer, etc. The mathematical methods of interest might include, semi-implicit, fully-implicit, or operator split time integration methods. The nonlinear solvers might include fully-coupled, fixed-point or decoupled solution strategies.
    		 Dana Knoll and John Shadid
    Multiscale Techniques
  • homogenization
  • hybrid codes
  • asymptotics
    		•  Tom Hughes and Mark Shephard
    Radiation Transport and Kinetic Methods (Abstract) Frank Graziani and Jim Morel
    Uncertainty Quantification (including statistics) (Abstract) Jim Glimm and Sallie Keller-McNulty
    Architecture (Abstract) Bill Gropp and Jim Tomkins
    Access and Resource Sharing (offsite)
  • grid computing/computational grids and tools
  • middleware
  • wide area networking
  • portals and PSEs
    		•  Ian Foster
    Data Management and Analysis (Abstract) Arie Shoshani and Doron Rotem
    Frameworks and Environments (Abstract)

    This breakout is devoted to the question of how the next generation of multi-physics and/or multiscale applications will be programmed on the next generation of high-performance machines.   What basic software technology investments can lead to major improvements in the ease of parallel programming, including the problem of obtaining high performance through automatic or manual tuning? These questions will be discussed at two levels: What new or existing programming environments should be used across applications domains?   How can modularization of user-developed code into software frameworks improve the programming process by allowing  loosely coupled investigators to contribute to a common code base? There will be ample opportunity for the participants of this breakout to sharpen, redefine, or wholly change these talking points.    		 Rob Armstrong and Kathy Yelick
    Performance Tools and Evaluation David Bailey
    Software Management and Support (Abstract) Steve Hammond and Rusty Lusk
    System Software
  • OS
  • compilers
    		•  Al Geist
    Visualization (Abstract)
    		Wes Bethel and Chuch Hansen