Workshop plan and logistics: Science Case for Large-scale Simulation The DOE Office of Science workshop on the Science Case for Large-scale Simulation will take place in the Sheraton National Arlington hotel, Arlington, VA, beginning Tuesday, June 24, 2003, at 8:00am and concluding Wednesday, June 25, 2003 before 6:00pm. The workshop is a major activity in an on-going process of demonstrating the need for new ultrascale computing facilities for Office of Science missions. Workshop content will flow immediately into a report (to be published in July 2003) that is designed to assist in the FY 2005 budget process for the Office of Science. It will also identify specific areas in which additional (smaller and more focused) workshops may be scheduled throughout the year to follow, with the purpose of further demonstrating the opportunities of large-scale simulation for scientific breakthrough in certain areas. The densely packed workshop schedule includes three plenary presentations, three breakout sessions of approximately ten-way parallelism, summary reports from the breakouts, and response periods. In the plenary sessions, Dr. Ray Orbach, Director of the Office of Science, will charge the participants and preview the Office of Science strategic plan, into which the results of this workshop will feed. Dr. Alan Laub, Head of the Scientific Discovery through Advanced Computing (SciDAC) initiative, will address the participants on the SciDAC context of workshop. Dr. John Grosh, Co-chair with Dr. Laub of the High Energy Computing Revitalization Task Force (HECRTF), will address the participants on the context of this interagency task force, which will have met the preceding week. The three breakout sessions are where the greatest value of the workshop is expected. The parallel sessions, focusing on major DOE science applications, mathematical methods, and computer science and infrastructure, will generate raw material for the July report and for follow-on activities. To ensure adequate coverage and topical balance, breakout session participation will be preassigned based on preferences expressed at registration. It is not expected that the level of detail needed in the report can be generated extemporaneously at the workshop. Therefore, session chairs will distribute questions to be answered by each breakout group in advance. Participants are requested to prepare for the workshop with advance reading and short studies to present in Washington. Websites containing downloads and cross-links will be posted prior to the workshop. In this way, the short time in which the groups of experts are assembled live at the workshop can be used to debate and refine content for the report in a highly informed way and at a concrete level. Each breakout session will be staffed with an advanced graduate student scribe (whose expenses will be fully supported by the DOE), who will help with reporting out of the breakout at the workshop and with the submission of written breakout session content. The workshop website will be updated immediately after the workshop with breakout, plenary, and other contributed content. A tentative schedule for the workshop follows: Tuesday, 24 June 2003 8:00 Registration 8:45 Welcome 9:00 Plenary I: Dr. Raymond Orbach, Director of the Office of Science 9:30 Plenary II 10:00 Plenary III 10:30 11:00 Application Breakout Groups, Part I 12:00 1:00 Application Breakout Groups, Part II 3:00 3:30 Reports from Application Breakout Groups 5:00 Responses to Application Breakout Reports 5:30 Reception Wednesday, 25 June 2003 8:15 Announcements 8:30 Mathematical Methods Breakout Groups 10:30 11:00 Reports from Mathematical Methods Breakout Groups 12:00 Responses to Math Methods Breakout Reports 12:30 1:30 Computer Science and Infrastructure Breakout Groups 3:30 4:00 Reports from Computer science and Infrastructure Breakout Groups 5:00 Responses to CS/Infrastructure Breakout Reports 5:30 Closing The DOE has made no special provision for supporting travel to this workshop, except for the graduate student scribes. It is assumed that DOE researchers with identified computational resource needs will rally around this strategic opportunity to be heard regarding those needs out of self and community interest. There is no registration fee. Though invitations will be issued to approximately 150 participants to ensure adequate coverage, given the broad scope of the workshop, the workshop is open to other participants. However, pre-registration is required, due to the complex logistics of load-balancing the breakout sessions. Logistical questions can be directed to Jody Shumpert, ORAU/ORISE Project Manager, Phone: 865-576-4811, Fax: 865-241-3168, shumperj@orau.gov.