Applications
The first HPCC/ESS Adaptive Mesh Refinement (AMR) Workshop was held April 3-4, 1998 at Goddard Space Flight Center (GSFC), immediately following the ESS Science Symposium at NASA Headquarters. The purpose of the Workshop was to provide a forum for those scientists on the Grand Challenge teams working on parallel AMR algorithms to share their experiences in an informal atmosphere. Of the 34 attendees, 22 represented 8 of the 9 ESS Round-2 Grand Challenge Teams, and 12 were from the Jet Propulsion Laboratory (JPL) and GSFC ESS inhouse teams.
The Workshop organizing committee was comprised of five members: Graham Carey (University of Texas at Austin, Scientific Chairman), Ken Powell (University of Michigan), Andrea Malagoli (University of Chicago), Tom Cwik (JPL), and Steven Zalesak (GSFC, Local Arrangements Chairman).
The Workshop met for a day and a half and exceeded every hope of the organizers. Despite the demanding meeting the prior day, the Workshop was one of virtual non-stop animated discussion among all of the participants. Friday's session started at 8:30 a.m. and continued until nearly 7:00 p.m. The bulk of participants then adjourned to a local restaurant, where discussions continued until past 9:00 p.m. Saturday's session began at 8:30 a.m. and continued at the energy levels of the previous day, culminating in lunch served for all, during which animated discussions were still ongoing.
A total of 15 individual presentations were given, with equal amounts of time scheduled for presentation and discussion. In addition, two open discussion sessions were held.
The Workshop topics and speakers were as follows:
Introduction: AMR in the ESS Project, and in the NASA/HPCC ESS Summer School - Steven Zalesak/ GSFC
A Perspective on Grids and AMR - Graham Carey/University of Texas at Austin
Block Structured AMR and Applications - Ken Powell/University of Michigan
Turbulent flows and Numerical Resolution - Andrea Malagoli/University of Chicago
JPL AMR Software Development - Tom Cwik/JPL
AMR Communication Issues - Robert McLay/University of Texas at Austin
Hierarchic Trees and Data Mining - Atanas Pehlivanov/University of Texas at Austin
Variable Resolution Version of the GEOS GCM - Michael Fox-Rabinovitz/University of Maryland
Goddard Hexahedral AMR Software - Peter MacNeice/Raytheon STX
Parallel AMR - Manish Parashar/Rutgers University
AMR Needs from Ocean Modeling - Tony Song/JPL
AMR Parallel Applications - Lee Wild/Max Planck Institute, Potsdam
Pitfalls and Other Issues - Hal Marshall/University of Michigan
AMR and Data Assimilation - Peter Lyster/University of Maryland
Current and Future Trends - Graham Carey/University of Texas at Austin
Andrea Malagoli, Peter MacNeice, and Tom Cwik led open discussions.
This workshop is the first of several planned by the ESS Project. The next will address parallel methods for solving large linear systems of equations, and will be held at a date to be announced.
Steven Zalesak
NASA Goddard Space Flight Center
zalesak@gondor.gsfc.nasa.gov
301-286-8935