Send mail to: email@example.com for the digests or bakeoff firstname.lastname@example.org for comments or help Anonymous ftp repository: www.mgnet.org (18.104.22.168) Current editor: Craig Douglas email@example.com World Wide Web: http://www.mgnet.org or http://casper.cs.yale.edu/mgnet/www/mgnet.html or http://www.cerfacs.fr/~douglas/mgnet.html or http://www.nchc.gov.tw/RESEARCH/Math/mgnet/www/mgnet.html Today's editor: Craig Douglas (firstname.lastname@example.org) Volume 11, Number 2 (approximately February 29, 2001) Today's topics: Postdoc Position Available at Mississippi State University PhD Research Assistantships at the University of Kentucky International Workshop Meshfree Methods for Partial Differential Equations Copper Mountain Preliminary Program ------------------------------------------------------- Date: Wed, 7 Feb 2001 22:56:40 -0600 (CST) From: "Dr. Jianping Zhu"
Subject: Postdoc Position Available at Mississippi State University A postdoctoral position is available in the Engineering Research Center at Mississippi State University. The position is part of the interdisciplinary project "Novel Dynamic Scheduling Methods with Application to Computation of Quantum Trajectories" funded by the new NSF research initiative in Information Technology Research (ITR). The project offers exciting opportunities for research in scientific computing, numerical algorithms, and computational quantum physics. The position is available immediately for a period of one year, renewable to two years. Applicants must have or soon expect to receive a PhD in computer science, computational physics, or applied mathematics, with a strong background in parallel computing or numerical methods for solving Schroedinger equations. At the Engineering Research Center (http://www.erc.msstate.edu) the applicant would have ample opportunity for interdisciplinary collaborative work and interaction with scientists at other research centers and universities throughout the United States. Video conferencing is available to facilitate the educational and scientific interaction with collaborators located at other universities and research centers. The applicant will have the opportunity to participate in numerous conferences and workshops on and off campus to further his/her education. Interested applicants should send their applications (including curriculum vitae, list of publications, names of references with their e-mail addresses), by email (please use postscript of pdf formats only) to either Ioana Banicescu (email@example.com) or Jianping Zhu (firstname.lastname@example.org). ------------------------------------------------------- Date: Sun, 4 Mar 2001 15:04:55 -0500 (EST) From: Jun Zhang Subject: PhD Research Assistantships at the University of Kentucky Funds are available to support up to two new research assistantships for students who are interested in pursuing PhD study in the Department of Computer Science at the University of Kentucky. The positions are funded by a US National Science Foundation Faculty Early Career Award for five years. The research assistants will be associated with the Laboratory for High Performance Scientific Computing and Computer Simulation (http://www.cs.uky.edu/~hipscns) and will conduct research in developing scalable linear system solvers for large scale scientific, engineering and industrial applications. The Laboratory for High Performance Scientific Computing and Computer Simulation is committed to the promotion of high performance scientific computing techniques and practice in general science and engineering, and industrial activities. Current research projects in the HiPSCCS Lab include, but are not limited to, the following: 1.) Scalable high performance scientific computing algorithms and software library; 2.) Large scale high performance computer simulations; 3.) Knowledge discovery and data mining in scientific computing and applications. If you are interested in these positions, please e-mail your curriculum vitae in postscript, PDF, or ASCII format (no MSWORD) to Jun Zhang at email@example.com, fax to (859)323-1971, or postal mail to: Professor Jun Zhang Department of Computer Science University of Kentucky Lexington, KY 40506-0046 USA Applicants must be admitted as PhD candidates in the Computer Science Department. An earned MS degree in computer science, numerical analysis, applied mathematics, or in other science and engineering areas with sufficient background in computer science and mathematics is usually required. ------------------------------------------------------- Date: Fri, 16 Feb 2001 15:06:37 +0100 From: International Workshop Meshfree Methods for Partial Differential Equations Subject: International Workshop Meshfree Methods for Partial Differential Equations FIRST ANNOUNCEMENT AND CALL FOR PAPERS International Workshop Meshfree Methods for Partial Differential Equations Bonn, Germany September 11 - 14, 2001 http://wissrech.iam.uni-bonn.de/meshfree Organizers: Prof. Ivo Babuska (University of Texas, Austin, USA) Prof. Michael Griebel (Universitaet Bonn, Germany) Prof. Wing Kam Liu (Northwestern University, USA) Prof. Helmut Neunzert (Fraunhofer-Institut ITWM, Germany) Prof. Harry Yserentant (Universitaet Tuebingen, Germany) Important Dates and Deadlines: May 1, 2001 Early Registration and Abstract submission August 1, 2001 Confirmation and Program Meshfree methods for the solution of partial differential equations gained much attention in recent years, not only in the engineering but also in the mathematics community. One of the reasons for this development is the fact that meshfree discretizations and particle models are often better suited to cope with geometric changes of the domain of interest, e.g. free surfaces and large deformations, than classical discretization techniques such as finite differences, finite elements or finite volumes. Another obvious advantage of meshfree discretizations is of course their independence of a mesh. Mesh generation is still the most time consuming part of any mesh based numerical simulation. Since meshfree discretization techniques are based only on a set of independent points these costs of mesh generation are eliminated. Finally, the coupling of particle models to continuous models gained enormous interest in recent years from a theoretical as well as from a practical point of view. Among the most prominent meshfree discretization techniques are: stochastic particle models, smoothed particle hydrodynamics, reproducing kernel particle methods, partition of unity methods, radial basis functions, vortex methods. The aim of the workshop is to bring together european and american researchers from different fields-inside and outside mathematics-not only to strengthen the mathematical understanding and analysis of meshfree discretizations but also to promote the exchange of ideas on their implementation and application. Topics of interest in the workshop are: analysis of meshfree methods, implementational issues of meshfree methods, coupling of particle models to continuous models, industrial applications of meshfree methods. The four day workshop program will consist of invited lectures, contributed papers and poster sessions. If you are interested in contributing to this workshop, please submit an abstract of about 300 words by e-mail to the contact address mailto:firstname.lastname@example.org by May 1, 2001. International Workshop Meshfree Methods for Partial Differential Equations Rheinische Friedrich Wilhelms Universitaet Bonn Institut fuer Angewandte Mathematik Abteilung Wissenschaftliches Rechnen und Numerische Simulation Wegelerstrasse 6 D-53115 Bonn fax: +49 228 737527 mailto:email@example.com http://wissrech.iam.uni-bonn.de/meshfree ------------------------------------------------------- Date: Wed, 28 Feb 2001 23:32:55 -0500 (EST) From: Craig Douglas Subject: Copper Mountain Preliminary Program Authors of papers related to the talks below are invited to include a preprint or extended abstract for the virtual proceedings. Please see the conference web page, http://amath.colorado.edu/appm/faculty/copper/2001, for details. Weekly Snow Report 03/02/2001 06:41:18 New Snow: 24 hrs: 1" 48 hrs: 7" 72 hrs: 10" 7 days: 15" Snow Conditions: Mid Mountain Base: 54"/137 cm Upper Mountain Base: 64"/162 cm Status: Number of Lifts Open: 23 Total Acreage Open: 2450 Cross-Country Track Status: 30 km of skate and track & 10 km Snowshoe From http://amath.colorado.edu/appm/faculty/copper/2001/program.html ... Tenth Copper Mountain Conference on Multigrid Methods APRIL 1-6, 2001 PRELIMINARY PROGRAM This program is preliminary and is subject to possible modification. Times given here are only estimates and are likely to change. We will try to limit schedule changes to within the given day. Participants and speakers should monitor this page and the bulletin board at the conference. Speakers should plan their talks to be at most 20 minutes. Program Chairs will adhere strictly to this schedule. Wednesday night's cash bar & banquet is in Victoria B in the Copper Commons. All other activities will be held in the Copper Commons conference facilities. Sunday, April 1 TUTORIAL Tutorial series on basic methods, more advanced techniques, and cache-based algorithms. 9:00am-noon William L. Briggs A Multigrid Tutorial, Part I 2:00pm-4:00pm Van Emden Henson A Multigrid Tutorial, Part II 4:30pm-6:00pm Craig Douglas and Ulrich Ruede Cache-Based Algorithms RECEPTION Cash bar and light buffet. 7:00pm-9:00pm Copper Commons conference facilities. Monday, April 2 SESSION 1 Transport Chair: Tom Manteuffel Travis Austin A Divergence-Free Relaxation Scheme in an 8:00am H^1-Finite Element Space: Numerical Results and Theory 8:25am Barry Lee FOSLS for Neutron/Photon Transport at LLNL Linda Stals The Parallel Solution of Radiation 8:50am Transport Equations Christoph Pfalum Discretization of Neutron Transport by 9:15am FOSLS and Piecewise Constant Functions on the Sphere SESSION 2 Inverse Problems Chair: Ulrich Ruede Eldad Haber Multigrid All-At-Once Methods for Large 10:00am Scale Inverse Problems Hugh R. MacMillan First-order System Least-squares for 10:25am Electrical Impedance Tomography Ulrich Ruede Multilgrid Solution of Bioelelectric Field 10:50am Problems SESSION 3 Applications 1 Chair: Van Henson Avraham Kenigsberg A Multigrid Approach for Fast 11:15am Geodesic Active Contours Achi Brandt Multiscale Computation: Recent 11:40pm Methodological Developments SESSION 4 Applications 2 Chair: Van Henson David Moulton An Augmented Systems Approach to 4:30pm Preconditioning Mimetic Discretizations C.W. Oosterlee On Multigrid Methods for Linear 4:55pm Complementarity Problems with Application to American-style Options Marc Alexander Schweitzer A Multilevel 5:20pm Particle-Partition of Unity Method Eite Tiesinga Multigrid Modeling of Two Confined and 5:45pm Interacting Atoms. Jun Zhang Multigrid Method and High Order Compact 6:10pm Scheme for Solving Boundary Layer Problems on Nonuniform Grids Pavel Bochev Constrained transport remap algorithms on 6:35pm unstructured quadrilateral and hexahedral grids Tuesday, April 3 SESSION 5 Algebraic Methods Chair: Jan Mandel 1 Marian Brezina An Extension of Convergence Theory for 8:00am the Smoothed Aggregation Multigrid 8:25am Tim Chartier Spectral AMGe Jane Cullum A Numerical Exploration of Algebraic 8:50am Multigrid Jonathan Hu Parallel Algebraic Aggregation for 9:15am Maxwell's Equations Frank Kiefer AMG-based Wavelet-like Multiscale Solvers 9:40am for Convection-diffusion Problems SESSION 6 Algebraic Methods Chair: John Ruge 2 Johannes Kraus Element-Free AMG Interpolation Based on 10:25am Multilevel Extension Mappings Domenico Lahaye A Multilevel Preconditioner for 10:50am Field-Circuit Coupled Problems Jan Mandel Approximation and Coupling Estimators for 11:15am Algebraic Multigrid Bjoern Medeke On Algebraic Multilevel Preconditioners 11:40am for Disordered Systems Gene Poole Advancing Analysis Capabilities in ANSYS 12:05pm through Solver Tech SESSION 7 Algebraic Methods Chair: Marian Brezina 3 4:30pm John Ruge AMG: An Overview Joachim Schoeberl Algebraic Multigrid for H(curl) and 4:55pm H(div) Ray Tuminaro A Parallel Multilevel Preconditioning 5:20pm Module for Unstructured Mesh Krylov Solvers Panayot S. Vassilevski Parallelizing AMGe Using Domain 5:45pm Decomposition Ulrike Meier Yang On the Use of Schwarz Smoothing in 6:10pm AMG Irad Yavneh An Algebraic Multigrid Approach for Shape 6:35pm from Photometric Stereo Wednesday, April 4 SESSION 8 Domain Decomposition Chair: Ulrike Meier Yang Richard B. Lehoucq Automated Multi-Level 8:00am Substructuring:Theory Jeff Bennighof Automated Multi-Level 8:25am Substructuring: Numerical Results Elena Braverman A Hierarchical Domain Decomposition 8:50am Method for the Solution of the Helmholtz and Biharmonic Equations Jayadeep Gopalakrishnan Multigrid and Schwarz 9:15am Methods for Time-harmonic Maxwell Equations K.C. Park Localized Construction of Non-Matching 9:40am Interfaces That Pass A-Priori Patch Test SESSION 9 NonLinear Methods Chair: Jim Jones Andrea Codd First-Order System Least Squares 10:25am (FOSLS) for Elliptic Grid Generation (EGG) Jim Jones Computational Issues in the Application 10:50am of Nonlinear Multigrid to Nonlinear Diffusion Problems Andrew Knyazev Eigensolvers with Multigrid 11:15am Preconditioners Johannes Korsawe Nonlinear Convergence via Linear 11:40pm Multilevel Performance: Gauss-Newton-Multilevel BANQUET Cash bar and banquet. 6:30pm Victoria B room in the Copper Commons. Thursday, April 5 SESSION 10 Computational Fluids Chair: Irad Yavneh Michael Bader A Robust and Parallel Multigrid 8:00am Method for Convection Diffusion Equations Boris Diskin Textbook Multigrid Efficiency for 8:25am High-Reynolds-Number Navier-Stokes Equations Victoria E. Howle Experiences with Parallel Block 8:50am Preconditioning of the Linearized Incompressible Navier-Stokes Equations Kent-Andre Mardal An Efficient Parallel Iterative 9:15am Approach to the Time-dependent Stokes Problem Dimitri Mavriplis Comparisons of Unstructured 9:40am Multigrid as a Non-linear Solver, a Linear Solver, or a Pre-Conditioner Sandra Naegele Multigrid Method Coupled with Large 10:05am Eddy Simulation Justin W.L. Wan Two Multigrid Time Stepping Schemes 10:30am which Preserve Monotonicity and TVD SESSION 11 Ocean Models Chair: Craig Douglas Mohamed Iskandarani Overview of Ocean Modeling 11:15am Using Spectral Elements Craig Douglas Subgrid Substructuring Techniques for 11:40am a Multilayered Ocean Model Gundolf Haase Simultaneous Iterations in Ocean 12:05pm Modeling SESSION 12 Theory Chair: Joe Pasciak Susanne C. Brenner An Additive Theory for Multigrid 4:30pm V-Cycle Algorithms Scott Fulton On the Accuracy of Multigrid 4:55pm Truncation Error Estimates Chisup Kim A Two-level Preconditioner for an 5:20pm Anisotropic Mixed Finite Element Problem Joe Pasciak New Estimate for a Penalty Approach for 5:45pm Non-conforming Finite Elements Roman Wienands Local Fourier k-grid (k=1,2,3) 6:10pm Analysis for Navier-Stokes-type Systems CIRCUS/WORKSHOP Chair: Craig Douglas Everyone is welcome to talk and/or listen. The circus program will be determined at the start by 7:30pm polling the participants. Contact Craig for suggestions and information, or just show up and be ready to talk, interact, or just listen. For a workshop, please contact Craig beforehand. Friday, April 6 SESSION 13 Computational Strategies Chair: Kirk Jordan Mark Kremenetsky Considerations for Parallel CFD 8:00am Enhancements on SGI ccNUMA and Cluster Architectures Mark Adams Parallel Algorithms for Unstructured 8:25am Gauss-Seidel Multigrid Smoothers Paul Farrell Factors Involved in the Performance 8:50am of Computations on Beowulf Clusters Markus Kowarschik Enhancing the Cache 9:15am Performance of Multigrid Codes on Structured Grids SESSION 14 Computational Strategies Chair: Seymour Parter William Mitchell Grid Partitioning for Improving 10:00am Cache Performance in Adaptive Multilevel Methods Bobby Philip Elliptic Solvers with Adaptive Mesh 10:25am Refinement and First-Order System Least-Squares (FOSLS) Methodologies 10:50pm Malik Silva Cache Aware Data Layouts Jari Toivanen Multilevel Preconditioners for 11:15pm Boundary Lagrange Multipliers Gabriel Wittum Multigrid Methods for Porous Media 11:40pm Flow Problems ------------------------------ End of MGNet Digest **************************