_________________________________________________________________________ NIMROD TEAM MEETING NOVEMBER 9-10, 2002 ROSEN CENTRE HOTEL ORLANDO, FLA MINUTES ************************************************************************* SATURDAY, NOVEMBER 9 SALON 19, ROSEN CENTRE HOTEL 7:30-9:00 AM: CONTINENTAL BREAKFAST SESSION I: CODE DEVELOPMENT AND CAPABILITY ISSUES 9:00-9:30 AM: Solvers, etc. (Carl) - AZTEC Must map from structured matrix to completely unstructured matrix. Code is being debugged. Hao says will be done by end of 2002. - Interaction with David Keyes/PETSC Carl and Hao have met with PETSC folks from Argonne. Carl will give seminar at Argonne. - ?? 9:30 - 10:15 AM: CEL Closures (Kinetic electron physics) (Eric) SI operator working with spectrum of magnetic perturbations. NTM calculations with kinetic heat flux underway and encouraging. 10:15 - 10:45 AM: Two-fluid Capability (Rick) No progress, work continues. Real progress awaits the non-symmetric solve. Then we can use the 4th order SI operator of Harned and Mikic. 10:45 - 11:10 PM: Resistive Wall and Vacuum (Scott. K, Dylan B., Morrel) No progress on resistive wall. Nonlinear vacuum issues seem to be related to poor equilibria. Scott says Lang and Dylan have said they will be responsible for providing sufficiently good equilibria. 11:10 - 11:30 PM: Pre- and Post-processing issues (Scott K., Dylan) Started interfacing nimrod dumpfiles to HDF5. Klasky has been helpful here. Mixed experience with MDSPlus. 11:30 - 12:00 PM: Graphic and Animation experience (Dylan, Scott K., all) Animation made with SciRUN were shown. 12:00 - 12:30 PM: Any other development issues (all) --------- 12:30 - 2:00 PM: Lunch --------- SESSION II: APPLICATIONS 2:00 - 2:30 PM: DIII-D Applications (Dylan) Dylan not present. 2:30 - 3:00 PM: 87009 (Dalton, Scott K.) Field line anomalies. 3:00 - 3:30 PM: "Alternates" (Carl) Jim Reynolds: Reported on progress in PPCD simulations of RFPs. Giovanni Cone: Reported on progress in spheromak simulations. 3:30 - 4:00 PM: Plasma Thruster (Alfonso) Progress is being made. 4:00 - 4:30 PM: Energetic Particles (Scott P., Charlson) Charlson: Reviewed status and progress. Self-consistent linear calculations at zero core beta were shown. CEMM internal kink hot particle benchmark case is doing well. 4:30 - 5:00 PM CDXU sawtooth comparison case Preliminary results were presented. 5:00 - 6:00 PM Any other applications?? ADJOURN ************************************************************************* SUNDAY, NOVEMBER 10 SALON 7, ROSEN CENTRE HOTEL 7:30 - 9:00 AM: CONTINENTAL BREAKFAST SESSION III: PARALLEL DEVELOPMENT PATHS 9:00 - 9:45 AM: Spectral Element and Adaptive Mesh Development (Alan G.) Progress and status were reviewed. SESSION 1V: MEASURING PROGRESS 9:45 - 11:00 AM: Summarize progress and set goals Non-symmetric solvers: Progress made in coupling to Aztec. This is a complicated task. Expect to have Aztec coupled to NIMROD and running comparison cases by December 31, 2002. With minor modifications may be able to couple to Petsc. Flow: Flow works with "enough" dissipation. Dalton and Scott will begin to assess the performance of the flow vis-a-vis tokamak problems. Try for some reports at our next meeting. Resistive wall: Formulation is compete. Code will still need to be modified, cleaned up, and re-debugged. Scott will do this. Will work on this after vacuum works. Work likely to start in January. Jim and Chris are working on analytic formulation for toroidal viscosity. They will provide some equations and guidance at next meeting. 2-fluid: 2-fluid works if you take "small enough" time steps. This is needed in and of itself, and also for kinetic closures. Hao and Carl are working on this. No estimate of completion date. Vacuum: Vacuum works in some calculations. Still having problems with D3D case that apparently have equilibrium problems. There are no known problems with NIMROD in this regard. Using FEs for equilibrium quantities is in progress, should be complete within weeks. Energetic particles: Large amounts of progress has been made since August. Coupling has been successfully demonstrated for linear cases. Particles are in parallel and runs reasonably fast. Nonlinear should be straightforward. Good comparisons with M3D have been obtained. We should understand this case and make sure we are comparing with the same parameters. SESSION V: POLITICS, ETC. 11:00 - 11:55 AM: - The View from Germantown (Rostom) - ISOFS (Dalton) - Interaction with Fusion Collaboratory (All) - ??? 11:55 - 12:00 NOON: Set date and place for next meeting. ADJOURN