Computing Sciences Newsbytes: Strength in Numbers
March 30, 2009
NERSC and CRD Staff Contributed to Fusion Grand Challenges Workshop
The DOE Office of Fusion Energy Science and Office of Advanced Scientific Computing Research co-sponsored a workshop on Scientific Grand Challenges in Fusion Energy Sciences and the Role of Computing at the Extreme Scale, from March 18–20 in Washington, D.C.
Phil Collela of CRD led the subpanel session on “Mathematical Formulations,” Arie Shoshani of CRD led the subpanel session on “Data Analysis, Management and Visualization,” and both Kathy Yelick and John Shalf of NERSC gave sub-panel presentations on the "Programming Models, Frameworks, and Tools." The purpose of the workshop was to identify grand challenge scientific problems in fusion energy sciences and plasma physics that could exploit computing at extreme scales to bring about dramatic progress toward their resolution. It included discussion of some of the computing challenges associated with developing predictive models of future fusion experiments such as ITER.
This was one of a series of Scientific Grand Challenges Workshops whose goal is to engage the scientific communities to identify some of the computational requirements and challenges associated with modeling and simulation in the domain sciences.
CRD Researchers Contributed to SIAM CSE09 Conference
Fifteen CRD researchers contributed in various ways to the SIAM Conference on Computational Science and Engineering held March 2–6 in Miami, Florida. Juan Meza was on the program committee, and David Bailey gave an invited talk on “Experimental Mathematics, Multicore Processors and Highly Parallel Computing.”
Tony Drummond of CRD co-organized two mini-symposiums and gave three talks. The mini-symposiums were “Fostering Educational Activities for the Computational Science and Engineering Community,” at which he and Osni Marques gave the opening talk, “Outreach and Education Through Computation”; and “Multiphysics Modeling: Frameworks and Applications,” including his talk on “A Scalable Coupling Toolkit for Multiresolution Models.” Drummond’s third talk was “Use of High-Level User Interfaces for Software Sustainability.” He was also a panelist discussing “Tools for Success” at an event at Miami Dade College organized by the Krell Institute.
Other CRD researchers who organized, presented, or co-authored at CSE09 include:
- Ann Almgren, “High Resolution Adaptive Algorithms For Subsurface Flow”
- John Bell, “Modeling of Fluctuations in Algorithm Refinement Methods,” “Simulations of a Laboratory-Scale Hydrogen Flame Stabilized on a Low Swirl Burner,” and “High Resolution Adaptive Algorithms for Subsurface Flow”
- Andrew Canning, “Scalable Parallel 3d FFTs for Electronic Structure Codes”
- Phil Colella, “Direct Simulation of Anatomical Flows using Embedded Boundary Methods”
- Dan Graves, “Direct Simulation of Anatomical Flows using Embedded Boundary Methods”
- Xiaoye Sherry Li, co-organizer, “Preconditioning Techniques” and co-author, “Preconditioning Techniques for a Hybrid Method to Solve Highly-Indefinite Linear Systems”
- Terry Ligocki, “Direct Simulation of Anatomical Flows using Embedded Boundary Methods”
- Mike Lijewski, “High Resolution Adaptive Algorithms for Subsurface Flow”
- Esmond Ng, “A Hybrid Approach for Solving Large Sparse Least-Squares Problems” and “Preconditioning Techniques for a Hybrid Method to Solve Highly-Indefinite Linear Systems”
- George Pau, “Reduced Basis Method for Nanodevices Simulation” and “High Resolution Adaptive Algorithms for Subsurface Flow”
- David Trebotich, co-organizer, “Multiscale Methods for Hydrodynamics at the Micro and Nano-Scales” and co-author, “Direct Simulation of Anatomical Flows using Embedded Boundary Methods” and “A Higher-Order Approach to Fluid-Particle Coupling in Microscale Polymer Flows”
- Brian Van Straalen, “Direct Simulation of Anatomical Flows using Embedded Boundary Methods”
- Chao Yang, co-organizer, “Large Scale ab initio Electronic Structure and Molecular Dynamics Computations” and author, “Solving Nonlinear Eigenvalue Problems in Electronic Structure Calculations”
