Send mail to: mgnet@cs.yale.edu for the digests or bakeoff
mgnet-requests@cs.yale.edu for comments or help
Current editor: Craig Douglas douglas-craig@cs.yale.edu
Anonymous ftp repository: ftp.ccs.uky.edu (128.163.209.106)
World Wide Web: http://www.mgnet.org or
http://www.cerfacs.fr/~douglas/mgnet.html or
http://phase.etl.go.jp/mgnet or
http://www.ccs.uky.edu/mgnet
Today's editor: Craig Douglas (douglas-craig@cs.yale.edu)
Volume 8, Number 6 (approximately June 30, 1998)
Today's topics:
Movement
Dissertation
Preprint from Yousef Saad and Jun Zhang
DAGH: 1-p processor adaptive grid refinement 2D/3D code and tutorial
Contents of NLA
10th GAMM Multigrid Workshop Program
DD11 preliminary program
Iterative Symposium
-------------------------------------------------------
Date: Fri, 19 Jun 1998 18:12:37 +0200
From: Craig Douglas
Subject: Movement
While at the 60th birthday workshop in honor of Dietrich Braess at Bochum,
Gabriel Wittum announced that he is moving to Heidelberg. His institute
will, of course, follow him.
-------------------------------------------------------
Date: Tue, 23 Jun 1998 11:02:28 +0200
From: Stefan Reitzinge
Subject: Dissertation
Robust Algebraic Multigrid Methods in Magnetic Shielding Problems
Stefan Reitzinger
Johannes Kepler University
Institut fur Mathematik
Altenbergerstrasse 69
A-4040 Linz
Austria
Abstract
The aim of this diplom thesis is to provide a robust and efficient solver for
large sparse and poor conditioned linear systems arising from the FE-method
for elliptic scalar PDEs of second order.
For a counter example the problem of magnetic shielding is used. Therefore
the Maxwell's equations for stationary objects are reduced to a scalar PDE of
second order with appropriate boundary conditions.
In order to solve the equation by means of FEM, a discretization for micro
scales is introduced. Especially long thin elements are suggested to keep the
number of unknowns small in areas of micro structures. Constructively a
finite element analysis is carried out where also a convergence result of the
FE-solution in H1 is presented.
To achieve an efficient and robust solution strategy the algebraic multigrid
method of Ruge and Stueben is introduced. Additionally three different areas
of application are presented for this AMG method, i.e. preconditioner, coarse
grid solver for a full multigrid method, and black box solver.
Because this AMG method normally works well for M-matrices, a technique is
presented to attain M-matrices, if the underlying linear system arises from an
FE-discretization. The method to achieve the M-matrix property is based on
the element matrices.
The algorithm was implemented as black box solver in the finite element
package FEPP. Therein AMG was applied as preconditioner for the conjugate
gradient method.
Some numerical experiments are presented, where long thin quadrilaterals are
used with ratio of the longest and shortest side of 1 to 10-3.
Additionally parameter jumps of order 10-6 to 10+6 are
considered.
Concluding AMG has been proven, at least in a numerical way, to be an
efficient and robust solver for magnetic shielding problems, if it is used as
a preconditioner for the CG-method. If long thin quadrilaterals are used for
discretization the modified preconditioner also behaves very robust.
Editor's Note: in www.mgnet.org/mgnet-papers.html or you can directly
------------- access it in mgnet/papers/Reitzinger/diplom.ps.gz
-------------------------------------------------------
Date: Tue, 23 Jun 1998 13:50:58 -0500 (CDT)
From: Jun Zhang
Subject: Preprint from Yousef Saad and Jun Zhang
We are happy to announce the following preprint.
Enhanced Multi-Level Block ILU Preconditioning
Strategies for General Sparse Linear Systems
Yousef Saad and Jun Zhang
Department of Computer Science and Engineering
University of Minnesota
200 Union Street S.E., Minneapolis, MN 55455
saad@cs.umn.edu, jzhang@cs.umn.edu
ABSTRACT
This paper introduces several strategies to deal with pivot blocks in
multi-level block incomplete LU factorization (BILUM) preconditioning
techniques. These techniques are aimed at increasing the robustness and
controlling the amount of fill-in of BILUM for solving large sparse linear
systems when large size blocks are used to form block independent sets.
Techniques proposed in this paper include double dropping strategies,
regularization via Singular Value Decomposition, variable size blocks, and use
of arrowhead block submatrix. We point out the advantages and disadvantages
of these strategies techniques and discuss their efficient implementations.
Numerical experiments are conducted to show the usefulness of these techniques
in dealing with hard-to-solve problems arising from computational fluid
dynamics. In addition, we discuss the relation between multi-level ILU
preconditioning methods and algebraic multi-level methods.
Postscript file of the above preprint may be downloaded from the following web
pages:
http://www.cs.umn.edu/~saad or http://www.cs.umn.edu/~jzhang
For those who do not have access to web, you can access the paper via
anonynmous ftp at the ftp site ftp.cs.umn.edu (cd /users/saad/reports then get
the compressed post-script file: umsi-98-98.ps.gz). If all fails thend send
an e-mail to jzhang@cs.umn.edu for a postscript file or a hard copy.
-------------------------------------------------------
Date: Thu, 04 Jun 1998 20:15:28 -0500
From: Craig Douglas
Subject: DAGH: 1-p processor adaptive grid refinement 2D/3D code and tutorial
James C. Browne of the University of Texas (browne@cs.utexas.edu) has allowed
me to put a stable version of his code DAGH (Distributed Adaptive Grid
Hierarchy). It is co-authored by M. Parashar (parashar@cs.utexas.edu). It
includes multigrid as an option. The code solves problems in two and three
dimensions using 1 or more processors. The code is a C++ library.
Additionally, a tutorial on parallel adaptive grid refinement techniques is
included. To quote from the tutorial:
The goals for the tutorial are:
To acquaint you with the adaptive mesh refinement (AMR) technique for the
solution of partial differential equations.
To familiarize you with the conceptual frame work of DAGH and how it is
implemented. To provide you with a working knowledge of DAGH interfaces
through annotated examples.
After you have gone through this tutorial you will be able to write a driver
for DAGH and run it in either sequential or parallel mode.
Editor's Note: The code is in www.mgnet.org/mgnet-codes.html and the
------------- tutorial is in www.mgnet.org/mgnet-tuts.html or you
can access both of them directly in the directory
www.mgnet.org/Codes/dagh.
-------------------------------------------------------
Date: Wed, 24 Jun 1998 08:56:34 +0200 (MET DST)
From: Maya Neytcheva
Subject: Contents of NLA
====================================================================
CONTENTS
Numerical Linear Algebra with Applications
Volume 5, Issue 1, 1998
----------------------------------------------
A note on the normwise perturbation theory for the regular
generalized eigenproblem
V. Fraysse and V. Toumazou
A parallel multisplitting solution of the Least Squares problem
R.A. Renaut
Harmonic projection methods for large nonsymmetric eigenvalue problems
R. Morgan and Min Zeng
Efficient computation of sparse approximate inverses
T.K. Huckle
====================================================================
CONTENTS
Numerical Linear Algebra with Applications
Volume 5, Issue 2, 1998
----------------------------------------------
Approximating minimum norm solutions of rank-deficient Least Squares
problems
A. Dax and L. Elden
On the performance of various adaptive preconditioned
GMRES strategies
K. Burrage and J. Erhel
On parallel solution of linear elasticity problems. Part I: Theory
I. Gustafson and G. Lindskog
====================================================================
CONTENTS
Numerical Linear Algebra with Applications
Volume 5, Issue 3, 1998
----------------------------------------------
Estimating the largest eigenvector by Lanczos and polynomial algorithms
with a random start
Z. Leyk and H. Wozniakowski
Analysis of matrix-dependent multigrid algorithms
Y. Shapira
The structure of the boundary element matrix for the three-dimensional
Dirichlet problem in elasticity
S. Rjasanow
Indefinitely preconditioned inexact Newton method for large sparse
equality constrained nonlinear programming problems
L. Lucsan and J. Vlcek
-------------------------------------------------------
Date: Thu, 02 Jul 1998 14:57:32 +0200
From: GAMM Workshop on Multigrid Methods
Subject: 10th GAMM Multigrid Workshop Program
We have posted the abstracts of all accepted presentations along with a
preliminary schedule on the MG10 web page
http://wwwwissrech.iam.uni-bonn.de/mg10
Frank Kiefer & Gerhard Zumbusch
University Bonn
for the MG10 Local Organizing Committee
-------------------------------------------------------
Date: Tue, 30 Jun 1998 07:25:01 -0500
From: Craig Douglas
Subject: DD11 preliminary program
The domain decomposition symposia will meet for the 11th time from July 20-24,
1998 at the University of Greenwich - Avery Hill Campus. Here is the
preliminary program that is on the web (http://dd11.gre.ac.uk/programme.html).
Monday July 20th
Opening of the Conference (Session Chair: M Cross) (NST)
8:45-9:00 Opening Speech - Dr D Fussey, Vice-Chancellor
Invited Papers (Session Chair: P Bjorstad) (NST)
9:00-9:30 Domain decomposition solvers for incompressible fluid flow. E M
RONQUIST
9:30-10:00 Domain decomposition methods for non-symmetric problems. F NATAF
10:20 Session A: Parasol 1 (Minisymposium Chair: P Bjorstad) (NST)
10:20 - Parasol Overview. Petter BJORSTAD
| 10:30 - Industrial requirements. Jochen WEIHER
11:00 - PARASOL interface. John REID
12:30 11:30 - Schwarz and Schur solvers. Eero VAINIKKO
12:00 - A parallel p-element solver. Ulrich TROTTENBERG
Session B: Multigrid 1 (Session Chair: P Deuflhard) (M140)
10:20 - A new algorithmic approach to multigrid
homogenization. Folkmar BORNEMANN
10:40 - A 2-level micro-macro approach in domain
decomposition for structural analysis. David DUREISSEIX, Pierre
Ladeveze
11:00 - A multigrid method for the solution of the eigenvalue
problem of the complex Helmholtz equation. T FRIESE, F Schmidt
11:20 - Multilevel substructuring preconditioners with
projectors. Yu KUZNETZOV
11:40 - Simulation numerique par methode variationnelle
multigrille spectrale du problems de Stokes generalise: Stokes -
Oldroyd. M MENOUARD, B Gay, Ben Mostapha
12:00 - Multilevel-splitted norms for interface problems.
Peter OSWALD
1:45 Session A: Parasol 2 (Minisymposium Chair: P Bjorstad) (NST)
1:45 - Direct solvers. P AMESTOY, I S Duff, J-Y L'Excellent,
| P Plechac
2:15 - The FETI solver. F-X ROUX methods
3:05 2:45 - Panel discussion
Session B: Towards black box routines for parallel and
distributed computing (Minisyposium Chair: F Nataf) (M140)
1:45 - How black are black box solvers? A user's perspective.
M KERN
2:05 - Parallel solution of irregularly structured sparse
linear systems with PSPARLIB. Y SAAD
2:25 - Using PETSc to build and use parallel and distributed
applications. William GROPP, Satish Balay, Lois Curfman McInnes,
Barry Smith
2:45 - Remarks on the implementation of the balancing
Neumann-Neumann domain decomposition algorithm. Marina VIDRASCU
Session C: Sub-space correction (Session Chair: R Hoppe) (H016)
1:45 - Some computational approaches to constructing coarse
spaces in domain decomposition methods. Tarek P MATHEW
2:05 - Robust subspace correction methods for thin elastic
shells. E E Ovtchinnikov, L S XANTHIS.
2:25 - Global convergence of subspace correction methods for
convex optimisation problems. Xue-Cheng TAI, Jinchao Xu
2:45 - Subspace definition for a multigrid method on
unstructured grids. Jinchao Xu, Ludmil ZIKATANOV
Invited Papers (Session Chair: M Cross) (NST)
3:30-4:00 How scalable is domain decomposition in practice? D E KEYES
4:00-4:30 Sound propagation near wedge-shaped pine in the water. H
KAWARADA, H Suito and T Kakahashi
4:30 Session A: Parallel Computing 1 (Session Chair: D E Keyes) (NST)
| 4:30 - An overview on current multiphysics simulation
software strategies for coupled applications with interacting
6:10 physics on parallel and distributed computers. Peter Chow, Cliff
ADDISON.
4:50 - Minimum overhead data partitioning scheme for parallel
video processing. D Turgay ALTILAR, Yakup Parker
5:10 - Communication latency hiding in a parallel conjugate
gradient method. Kevin MCMANUS, Steve Johnson, Mark Cross
5:30 - Comparing two parallel algorithms for non-linear metal
cutting problems. C J PALANSURIYA, C S Ierotheou, D E Keyes, C-H
Lai, K A Pericleous
5:50 - Parallel computingusing domain decomposition for
cyclical temperatures in ceramic/metal composites. GUO QINGPING,
D Parkinson, XIAO Jinsheng, Y Parker
Session B: Multigrid 2 (Session Chair: J Xu) (M140)
4:30 - A multilevel domain decomposition method for
high-order discretisation. Grabriel Mateescu, Calvin J RIBBENS
4:50 - BPX-preconditioned fully adaptive mulotigrid for
micromagnetic problems. Igor TSUKERMAN, Alexander Plaks
5:10 - V-Cycle multigrid methods for Wilson nonconforming
finite element. Z C SHI, Xue-Jun Xu
Session C: Grid Refinement and Partitioning 1 (Session Chair: M
G Everett) (H016)
4:30 - A new paradigm for parallel adaptive mesh refinement.
Randolph E BANK, Michael J Holst
4:50 - A multilevel spectral partitioning algorithm for
unstructured grids. Tony F CHAN, Susie Go, Jun Zou
5:10 - Identifying good metrics for mesh partitionign for
distributed systems. Jian CHEN, Valerie E Taylor
6:30- Welcome Reception at the Senior Common Room, Avery Hill
Conference Centre.
Tuesday July 21st
Invited Papers (Session Chair: I G Graham) (NST)
9:00-9:30 Adaptive multilevel FEM as decisive tools in the clinical cancer
therapy hyperthermia. P DEUFLHARD
9:30-10:00 FETI - H: A scalarable domain decomposition method for the
solution of high frequency exterior Helmholtz problems. C FARHAT
10:20 Session A: Sparse Grid Methods 1 (Minisymposium Chair: M
Griebel) (NST)
| 10:20 - Is there a curse of dimension for tensor product
problems. Erich NOVAK
12:30 10:40 - On optimal and universal methods of approximate
recovery of multivariate functions. Vladimir TEMLYAKOV
11:00 - Sparse grid quadrature formulas for the solution of
partial differential and integral equations. Thomas GERSTNER
11:20 - Finite difference schemes on sparse grids for time
dependent problems. Gerhard ZUMBUSCH
11:40 - Optimal approximation of singular functions by sparse
grid functions. Peter OSWALD
12:00 - Application of adaptive sparse grids for a model
singular perturbation problem. Jaap NOORDMANS
Session B: Non-linear Problems 1 (Minisymposium Chair: M
Espedal) (M140)
10:20 - A non-overlapping domain decomposition method for a
time dependent optimal control problem: applications to an ocean
circulation Aicha BOUNAIM
10:40 - Domain decomposition in high-level parallelisation of
PDE codes. Xing CAI
11:40 - Domain decomposition methods for a system of coupled
scalar and vector Helmholtz equations. Xiabing FENG
11:20 - On the accuracy of a domain decomposition method for
metal sheet cutting. C-H LAI, C Ierotheou, C J Palansuriya, K A
Pericleous
11:40 - Overlapping domain decomposition and multigrid
methods for inverse problems. X-C TAI, J Fryon, M S Espedal, T F
Chan
1:45 Session A: Sparse Grid Methods 2 (Minisymposium Chair: H-J
Bungartz) (NST)
| 1:45 - Adaptive finite element methods on sparse grids.
Stefan SCHNEIDER, H-J Bungartz, Christoph Zenger
3:05 2:05 - Implementational aspects of the prewavelet sparse grid
method. Andread Niedermeier, Stefan ZIMMER
2:25 - Sparse grid spectral methdds and some results from
approximation. Friedrich KUPKA
2:45 - Panel Discussion
Session B: Non-linear Problems 2(Minisymposium Chair: X-C Tai)
(M140)
1:45 - On Schwarz alternating methods for the 2-d
incompressible Navier-Stokes equations. S H LUI
2:05 - Parallel space decomposition methods for Lipschitz
continuous functionals. Andreas FROMMER, Rosemary A Renaut
2:25 - A characteristic domain decomposition method for
advection-diffusion equations with interfaces. H Wang, Mohamed
AL-LAWATIA
2:45 - Panel Discussion
Invited Papers (Session Chair: B Engquist) (NST)
3:30-4:00 Recent development of overlapping Schwarz methods and
applications in compressible flow simulations. X-C CAI
4:00-4:30 Preconditioning operators for elliptic problems with bad
parameters. S NEPOMNYASCHIKH
4:30 Session A: Novel Applications 1 (Session Chair: K Pericleous)
(NST)
| 4:30 - A two-model compressible flow formulation based on the
full potential and Euler equations. X-C Cai, M PARASCHIVOIU, M
6:10 Sarkis
4:50 - A single-code software model for multiphysics analysis
engine on parallel and distributed computers with the PHYSICA
toolkit. Peter CHOW, Cliff Addison, Chris Bailey, Kevin McManus,
Mark Cross
5:10 - Sound generation by vortex-blade interactions. G S
DJAMBAZOV, C-H Lai, K A Pericleous
5:30 - Numerical simulation of wave propagation phenomena in
vocal tract and domain decomposition method. Takashi KAKO, T
Kano
Session B: Schwarz Methods (Session Chair: O Widlund) (M140)
4:30 - Non-overlapping Schwarz waveform relaxation for time
dependent problems. M J GANDER, L Halpern, F Nataf
4:50 - Generalised additive Schwarz method on overlapping
non-matching grids. Serge GOOSSENS
5:10 - Applications of unstructed additive Schwarz methods. L
STALS, I G Graham, M J Hagger
Session C: Grid Refinement and Partitioning 2 (Session Chair: M
Berzins) (H016)
4:30 - Optimal domain decomposition of hybrid grids for a
target parallel architecture. M LEATHAM
4:50 - Load measures and mesh partitioning methods for
adaptive hp finite elements. A PATRA, D W Kim
5:10 - Interpolation errors and two refinement strategies for
tetrahedra. I TSUKERMANN, A Plaks
5:30 - Load balancing for steady computation using adaptive
unstructured grids. S K Kochuguev, E I Levin, A I ZHMAKIN
Wednesday July 22nd
8:00 Graduate Paper Competition 1 (Session Chair: R Glowinski) (NST)
8:00 - Parallel implementation of spectral element method
| with nonconforming mesh. Huiyu FENG, C Mavriplis
8:20 - Numbering techniques for the multigrid solution of
12:40 convection dominated problems. Sabine GUTSCH
8:40 - Eigenvalue estimation and preconditioning to additive
Schwarz method. W HE
9:00 - Block preconditioners for non-symmetric saddle piont
problems. Piotr KRZYZANOWSKI
9:20 - On the choice of a Krylov method for the domain
decomposition iterative solution of the exterior Helmholtz
problem. A PUPPIN-MACEDO
9:40 - An adaptive h-p finite element code on quads and
triangles. Guido NABH
Graduate Paper Competition 2 (Session Chair: T F Chan) (NST)
10:20 - Some results on overlapping Schwarz methods for the
Helmholtz equation employing perfectly matched layers. A TOSELLI
10:40 - Parallel turbulent combustion simulations using
domain decomposition with multigrid. A TWERDA, R L Verweij, A F
Bakker
11:00 - Parallel domain decomposition for reaction-diffusion
problems. M Bercovier, N VOLFOVSKY
11:20 - FETI domain decomposition algorithms for sensitivity
analysis in contact shape optimisation. Vit VONDRAK, Z Dostal
11:40 - Newton-Krylov-Schwarz methods for the solution of
aerodynamics problems on structured and unstructured grids.
Dinesh KAUSHIK, David Keyes, L C McInnes, B F Smith
12:00 - Static mapping of FEM-Mesh on parallel processor. L C
MAIARU
12:20 - Domain decomposition and parallel processing
microwave applicator design. D H MALAN, A C Metaxas
6:30- Conference Banquet at Trafalgar Tavern, Park Row, Greenwich,
London SE10.
Thursday July 23rd
Invited Papers (Session Chair: X-C Cai) (NST)
9:00-9:30 Some recent applications of domain decomposition methods to flow
problems. A QUARTERONI
9:30-10:00 Overlapping Schwarz methods for the Helmholtz equations. M
CASARIN
10:20 Session A: Porous Media (Minisymposium Chair: Jean Roberts)
(NST)
| 10:20 - Domain decomposition methods in porous media
simulations. R E Ewing
12:30 10:40 - Control-volume mixed finite element methods and
efficient domain decomposition solvers for heterogeneous
groundwater flow equations. Thomas F RUSSELL, R R Parashkevov, J
D Wilson.
11:00 - Domain decomposition for two-phase flow in a porous
medium with two rock types. J Jaffre, J Roberts, Xuewen WANG
11:20 - Domain decomposition methods for fractured reservoir
models. M S ESPEDAL, G E Fladmark, H Reme, G A Oye
11:40 - Domain decomposition procedures for some
nonconforming methods. Ivan YOTOV, M F Wheeler
12:00 - Domain decomposition for porous media with fractures.
C ALBOIN, J Jaffre, J Roberts
Session B: Algorithms 1 (Session Chair: A Quarteroni) (M140)
10:20 - Convergence of asynchronous multisplitting two-stage
iterations for block systems fo weakly nonlinear equations.
Zhong-Zhi BAI, D J Evans
10:40 - The block-grid method of increased accuracy in
solving the mixed boundary value problem for the Laplace
equation on polygon. A A OSIYEV
11:00 - A domain decomposition method with Lagrange
multiplers for second order elasticity. Axel KLAWONN, O B
Widlund
11:20 - On a non-overlapping domain decomposition method for
scalar parabolic initial-boundary value problems. Gert LUBE, L
Mueller, F - C Otto
11:40 - Decomposition method and strategy for coordination in
optimal design of mechanical engineering systems. Carlos
MARTINS, J Guillot
12:00 - Domain decomposition methods and artificial far-field
boundary conditions for compressible viscous flows around
airfoils. C COCLICI, W L Wenland
1:45 Session A: Viscous-Inviscid Coupling (Minisymposium Chair: A E P
Veldman) (NST)
| 1:45 - Viscous-inviscid interaction: domain decomposition
'avant la lettre'. A E P VELDMAN
3:05 2:05 - Quas-simultaneous viscous-inviscid coupling for
aerofoil flows. E G M COENEN
2:25 - Application of a quasi-Newton method in
viscous-inviscid coupling. C-H LAI, A E P Veldman
2:45 - Panel Discussion
Session B: Sub-Structuring Methods (Session Chair: A Craig)
(M140)
1:45 - Substructuring method for p1 non-conforming finite
element discretisations. GU, Jinsheng and Jiu, Quansen
2:05 - On a robust and sparse approximation to the interface
operators in substructuring methods for elliptic problems. Boris
N KHOROMSIJ, G Wittum
2:25 - Incorporation of linear multipoint constraints in
substructure based iterative solvers. Catherine LACOUR
2:45 - Analysis of substructuring in a metal forming process.
A MEULLER, P Adamidis, A Beck, Y Ding, M Muench, A Reuter
Session C: Algorithms 2 (Session Chair: Z-C Shi)
1:45 - A least squares method for the Helmholtz equation.
Peter MONK, D-Q Wang
2:05 - The Schur complement as a mass matrix in mode
synthesis eigenvalue problems. F Bourquin, Rabah NAMAR
2:25 - Domain decomposition methods for time-dependent
problems of mathematical physics. A A Samarshii, P N
VABISHCHEVICH
2:45 - Application of the FETI method to industrial acoustic
problems governed by the Helmholtz method. J-P Coyette, F
MAGOULES, K Meerbergen, F-X Roux
Invited Papers (Session Chair: M Ainsworth) (NST)
3:30-4:00 Adaptive multilever finite element methods in domain
decomposition on nonmatching grids. R HOPPE
4:00-4:30 Enhanced convergence rate from asymptotic expansions in domain
decompositon. B ENGQUIST
4:30 Session A: Novel Application 2 (Session Chair: K Chen) (NST)
4:30 - FETI solver for corotational nonlinear problems.
| Kendall PIERSON, M Lesoinne
4:50 - An iterative Krylov-based accelerating method for the
6:10 solution to large-scale nonlinear problems. F Risler, Christian
REY
5:10 - The use of domain decomposition for approximating the
conformal map of a quadrilateral onto a rectangle. Nikos
STYLIANOPOULOS
5:30 - Specifc methods in symmetric structures analysis.
Andrei VASILESCU
Session B: Mortar Element + Fictitious Domain Methods (Session
Chair: Yu Kuznetsov) (M140)
4:30 - Spectral element method and mortars to study a
glaciological problem in Antarctica. Renaud LESTRINGANT
4:50 - The FETI method for mortar finite elements. Axel
Klawonn, Dan STEFANICA
5:10 - Numerical simulation of 3D particulate flows by a
domain embedding method. Roland Glowinski, Tsorng-Whay PAN, J
Periaux
5:30 - A fictitious domain method elasticity problems. R A E
Makinen, T Rossi, Jari TOIVANEN
Session C: Elliptic Problems (Session Chair: S Nepomnyaschikh)
(H016)
4:30 - Defect correction and domain decomposition for second
order boundary value problems. Ahmed-Salah CHIBI, K Nafa
4:50 - Optimal algorithms of solution of elliptic equations.
I V BOIKOV, A I Boikova
5:10 - The composite grids method of increased accuracy in
solving the mixed boundary value problem for the Laplace
equation. A A DOSIYEV, M Bozer
Friday July 24th
Invited Papers (Session Chair: C Farhat) (NST)
9:00-9:30 Hybrid boundary element methods in 3D. I G GRAHAM
9:30-10:00 Parallel unstructured tetrahedral mesh algorithms for transient
compressible and reacting flow problems using domain
decomposition. M BERZINS
10:20 Session A: Boundary elements (Session Chair: I G Graham) (NST)
10:20 - Parallel flexible elimination algorithms for dense
| linear systems with applications to boundary elements. Ke CHEN,
C-H Lai
12:30 10:40 - Domain decomposition for weakly singular integral
equations. Norbert HEUER
11:00 - A monotone multigrid method for solving unilateral
problems using the Galerkin boundary element method. Matthias
MAISCHAK
11:20 - Boundary elements in domain decomposition. O
STEINBACH
11:40 - Solutions of complex linear systems resulting from
unsteady aerodynamics. Chak W CHEUNG, C-H Lai
Session B: Interfacial Iterations (Session Chair: F Nataf)
(M140)
10:20 - Fine tuning interface relaxation schemes for elliptic
differential equations. J R Rice, P Tsompanopoulou, E VAVALIS
10:40 - Domain decomposition algorithms for singular
perturbation parabolic problems. Igor BOGLAEV
11:00 - Domain decomposition with local Fourier basis applied
to frontal polymerisation problems. M Garbey, D TROMEUR-DERVOUT
11:20 - Coervice domain decomposition algorithms for
advection-diffusion equations and systems. Ana Alonso, R
Loredana TROTTA, A Valli
11:40 - Legredre spectral collocation for the biharmonic
Dirichlet problem. Bernard BIALECKI, A Karageorghis
Session C: Parallel Computing 2 (Session Chair: M Espedal)
(H016)
10:20 - Dynamic load balancing for multi-physical modelling.
V ARAVINTHAN, K McManus, S Johnson, M Cross
10:40 - Parallel solution techniqus for the p-version finite
element method. M PAPADRAKAKIS, D C Harbis
11:00 - The parallel solution of early-exercise Asian options
with stochastic volatitlity. Kevin PARROTT, N Clarke
11:20 - Parallel solvers for the transient multigroup neturon
diffusion equations. Robert SCHEICHL
11:40 - Scalability and load imbalance for domain
decomposition based transport. P WILDERS
12:00 - A new approach to parallelising finite element
computations. Jinchao XU, A Zhou
2:00 Invited Papers (Session Chair: H Kawarada) (NST)
| 2:00 - 2:30 Domain decomposition for hp-finite element
approximation. M AINSWORTH
3:30 2:30 - 3:00 Title to be announced. J PERIAUX
3:00 - 3:30 Tea and close
-------------------------------------------------------
Date: Thu, 2 Jul 1998 10:54:46 -0500
From: "David R. Kincaid"
Subject: Iterative Symposium
Fourth IMACS International Symposium on
Iterative Methods in Scientific Computation
(Celebrating David M. Young's 75th birthday)
October 18-20, 1998
University of Texas at Austin
NEW Deadlines:
August 15, 1998: Contributed talks
September 15, 1998: Early registration
Theme is iterative methods for solving large sparse linear systems in
scientific computation with focus on past, present, and future. Current and
former students, friends, and associates of Professor David Young are
particularly welcome and are urged to participate.
To contribute talks or register, see Web site
http://www.ticam.utexas.edu/dmy98/
or send email to dmy98@ticam.utexas.edu
For additional information
Dr. David R. Kincaid
RLM 13.150 -- C1300
Center for Numerical Analysis
University of Texas at Austin
Austin, TX 78713-8510 USA
Tel: (512) 471-1242
Fax: (512) 471-9038
email: kincaid@cs.utexas.edu
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