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teaching statement
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Householder Symposium
XVI: Daniel Szyld,
Eric de
Sturler, Plamen
Koev, Rich Lehoucq, and Howard
Elman.
Eric de
Sturler
Editor
SIAM
Journal on Numerical Analysis,
Editor Applied Numerical
Mathematics, Program Director of the SIAM Activity Group on
Supercomputing (20032006),
CoChair of the Third
SIAM
Conference on Computational Science & Engineering (2005),
Editor International Journal on
Computational Science and Engineering,
Editor Open Applied Mathematics Journal,
Affiliate faculty of the
Institute for Genomic Biology and the
Materials Computation Center at the
University
of
Illinois at
UrbanaChampaign,
Adjunct Associate Professor,
Department of
Computer Science,
University of
Illinois at UrbanaChampaign.
Virginia Tech Mathematics Department and
Faculty Pool.

Blacksburg's Beaches

Department of
Mathematics
544
McBryde
Hall,
Virginia Tech
Blacksburg,
VA
240610123,
USA
Secretary at UIUC:
Trisha Benson
4322
Thomas
M.
Siebel
Center for
Computer
Science, MC258
phone: +1 (217) 2440095
email:
tdbenson_at_cs_uiuc_edu 
phone: +1 (540) 231
5279 fax: +1 (540) 2315960 email:
sturler_at_vt_edu 

The Rime of the Ancient
Professor 

O
teach me, teach me, learned man!
The
student did implore.
Tell
me, quoth she, of PDE
And
ODE much more. 
Since
then, each week the selfsame hour,
That
agony returns:
And
till I have my lecture told,
This
heart within me burns. 
Forthwith this frame of mine was wrenched
With a
woeful agony,
Which
forced me to begin my class;
And
then it left me free. 
Three
times a week I go to class;
I have
strange power of speech;
That
moment that her face I see,
I know
the student must hear me:
To her my class I teach.

(EdS, after Coleridge's The Rime of the Ancient
Mariner)
Recent publications
(send email if not yet available online as
technical report)

XinGuang Zhu, Eric de
Sturler, Rafael Alba, and Stephen P. Long,
A Simple Model of the Calvin Cycle Has Only One Physiologically
Feasible Steady State under the Same External Conditions,
Nonlinear Analysis Series B: Real World Applications, accepted,

XinGuang
Zhu, Eric de Sturler, Stephen P. Long,
Optimizing the distribution of resources between
enzymes of carbon metabolism can dramatically increase photosynthetic
rate. A numerical simulation using an evolutionary
algorithm, Plant Physiology, October 2007,
Vol. 145, pp. 513—526, 2007; DOI:10.1104/pp.107.103713,
www.plantphysiol.org
(open access article)

Eric de Sturler, Chau Le, Shun Wang, and Glaucio Paulino,
Large Scale Topology Optimization Using Preconditioned Krylov
Subspace Recycling and Continuous Approximation of Material
Distribution, Proceedings of the Multiscale and
Functionally Graded Materials Conference 2006 (FGM 2006), Ko
Olina, O’ahu, Hawaii, October 1518, 2006, accepted,
 Shun
Wang, Eric de Sturler, and Glaucio H. Paulino,
LargeScale Topology Optimization using
Preconditioned Krylov Subspace Methods with
Recycling, International Journal for Numerical
Methods in Engineering, Vol. 69, Issue 12, pp. 2441—2468, 2007, DOI:
10.1002/nme.1798,

Michael
L. Parks, Eric de Sturler, Greg Mackey, Duane D. Johnson, and
Spandan Maiti,
Recycling Krylov Subspaces for Sequences of Linear
Systems,
SIAM Journal on Scientific Computing, Vol. 28, No. 5, pp. 16511674,
2006,

Chris
Siefert and Eric de Sturler,
Preconditioners for Generalized SaddlePoint
Problems
©2006
SIAM, SIAM Journal on Numerical Analysis, 44(3), pp.
12751296, 2006,
 Chris
Siefert and Eric de Sturler,
Probing Methods for SaddlePoint
Problems, Electronic Transactions in Numerical
Analysis (ETNA), Volume 22, pp. 163183, 2006, in Special Volume on
"Saddle Point Problems: Numerical Solution and Applications", (final draft),

Misha
Kilmer and Eric de Sturler,
Recycling Subspace Information for Diffuse Optical
Tomography, © 2006 SIAM, SIAM Journal on
Scientific Computing 27(6), pp. 21402166, 2006,

Saddle Point Problems: Numerical Solution and
Applications, Special Volume of Electronic
Transactions on Numerical Analysis (ETNA), Volume 22, 2006, Michele
Benzi, Richard B. Lehoucq, and Eric de Sturler (editors).

Collaborative
Research: CMG: Quantum Monte Carlo Calculations of Deep Earth Materials,
NSF EAR 0530643,

Collaborative
Research: Unifying mechanistic and dynamic mathematical models of
stomatal behavior and photosynthesis, NSF
IOB0417126,

Materials Computation Center,
funded by NSF,

Development of Interoperability Based Environment
for Adaptive Meshes (IBEAM) with Application to RadiationHydrodynamic
Models of GammaRay Bursts, funded by NASA,

Center for Simulation of Advanced Rockets
(CSAR), funded by the Department of
Energy,

Surface Parameterization for
Meshing, funded by Sandia National
Laboratories,

Fast
and Robust Parallel Linear Solvers and Preconditioners (soon),

Eigensolvers
(soon),

Optimization
and Nonlinear Problems (soon),
UIUC (to be
updated):

CS
450
Numerical Analysis: A Comprehensive
Overview (including online
lecture notes)
 CS
455 Numerical Solution of Partial Differential
Equations
(including online
lecture notes)
 CS
458
Numerical Linear Algebra
(including online
lecture notes)

CS
550
Numerical Differential
Equations
(including online
lecture notes)

CS
556
Iterative and Multigrid Methods (including online
lecture notes)
VT:
Short Courses

Summerschool on Computational Materials Science,
Introduction to Computational Nanotechnology, Materials
Computation Center, University of Illinois at UrbanaChampaign, June 7 
18, 2004, Lecture notes

Summerschool on Computational Materials Science,
Tools for Multiple Length and Time Scales, Materials Computation
Center, University of Illinois at UrbanaChampaign, May 29  June 7,
2001.
Lecture
notes on MCC website (4 lectures on
Krylov subspace methods for linear systems and
eigenvalue solvers, and multigrid methods; and lab exercises with additional
explanations)

Implementation Aspects and
Parallelism in Krylov Methods;
Katholieke Universiteit
Leuven (KUL), Leuven, Belgium, 2224 April, 1998; KULUCL Graduate
Courses in Numerical Analysis / Seminar Series: Iterative Methods for
Large Scale Systems and Eigenvalue Problems,
organized by Paul Van Dooren and Stefan
Vandewalle
Lecture notes (efficient parallel
implementations and messaging passing and dataparallel
implementations)
 Iterative Linear
Solvers and Preconditioners (with Martin
Gutknecht and Michele Benzi); ETH Zurich, October 1617, 1997;
Lecture
notes
(optimal methods,
optimal truncation, and software)
 University of
Basel, Institut fuer
Informatik, May 1214, 1997, High Performance
Fortran Course, Basic issues in (data) parallel programming; High
Performance Fortran: an overview; Fortran 90; Data mapping; Data
Parallelism; System and data mapping inquiry functions; Compiler and
tools; Programming examples and performance studies.
o
Lecture notes (at some
point)
Selected Journal and Book Publications
(send email if not available
online)

XinGuang Zhu, Eric de
Sturler, Rafael Alba, and Stephen P. Long,
A Simple Model of the Calvin Cycle Has Only One Physiologically
Feasible Steady State under the Same External Conditions,
Nonlinear Analysis Series B: Real World Applications, accepted,

XinGuang
Zhu, Eric de Sturler, Stephen Long,
Optimizing the distribution of resources between
enzymes of carbon metabolism can dramatically increase photosynthetic
rate. A numerical simulation using an evolutionary
algorithm, Plant Physiology, October 2007,
Vol. 145, pp. 513—526, 2007; DOI:10.1104/pp.107.103713,
www.plantphysiol.org
(open access article)
 Shun
Wang, Eric de Sturler, and Glaucio H. Paulino,
LargeScale Topology Optimization using
Preconditioned Krylov Subspace Methods with
Recycling, International Journal for Numerical
Methods in Engineering, Vol. 69, Issue 12, pp.
2441—2468, 2007, DOI: 10.1002/nme.1798,
 Mike
Parks, Eric de Sturler, Greg Mackey, Duane D. Johnson, and
Spandan Maiti,
Recycling Krylov Subspaces for Sequences of Linear
Systems ©2006 SIAM, SIAM Journal on Scientific Computing,
Vol. 28, No. 5, pp. 16511674, 2006,

Chris
Siefert and Eric de Sturler,
Probing Methods for SaddlePoint
Problems, Electronic Transactions in Numerical
Analysis (ETNA), Volume 22, pp. 163183, 2006, in Special Volume on
"Saddle Point Problems: Numerical Solution and Applications",

original
version available as Tech. Report
UIUCDCSR20052540 and
UILUENG20051744, March 2005,

Chris
Siefert and Eric de Sturler,
Preconditioners for Generalized SaddlePoint Problems ©2006 SIAM, SIAM Journal on Numerical Analysis, 44(3), pp.
12751296, 2006, original version available as Technical Report
UIUCDCSR20042448 and
UILUENG20041750, June 2004.

Saddle Point Problems: Numerical Solution and
Applications, Special Volume of Electronic Transactions on Numerical
Analysis (ETNA), Volume 22, 2006, Michele Benzi,
Richard B. Lehoucq, and Eric de Sturler (editors),
 Misha
Kilmer and Eric de Sturler,
Recycling Subspace Information for Diffuse Optical Tomography
©2006 SIAM, SIAM Journal on Scientific
Computing 27(6), pp. 21402166, 2006, original version available as
Technical Report
UIUCDCSR20042447, June 2004,

Chris
Siefert and Eric de Sturler,
Preconditioners for Generalized SaddlePoint
Problems, accepted for publication in SIAM Journal
on Numerical Analysis, December 2005,

XinGuang
Zhu, Govindjee, Neil Baker, Eric de Sturler,
Donald R. Ort, Stephen P. Long,
Chlorophyll a fluorescence induction
kinetics in leaves predicted from a model describing each discrete step
of excitation energy and electron transfer associated with
Photosystem II, Planta
223(1), pages 114133, 2005; the original publication is
available at www.springerlink.com as
pdf or
html,

Eric
de Sturler and Jörg Liesen,
Blockdiagonal and Constraint Preconditioners for Nonsymmetric
Indefinite Linear Systems. Part I: Theory ©2005
SIAM, SIAM Journal on Scientific Computing 26(5),
pp. 15981619, 2005,

Eric
de Sturler,
Improving the Convergence of the JacobiDavidson
Algorithm,

A.
Sheffer and E. de Sturler,
Smoothing an Overlay Grid to Minimize Linear
Distortion in Texture Mapping ©2002 ACM, ACM Transaction on
Graphics 21(4), pp. 874890, 2002 (final draft with color
graphics).

A.
Sheffer and E. de Sturler,
Parameterization of Faceted Surfaces for Meshing
Using Angle Based Flattening (final
draft), Engineering with
Computers 17(3) (2001), pp. 326337. (available from
Springer) Special issue
containing 10 selected (and updated) papers from the 9th International
Meshing Round Table Conference 2000.

J.
Liesen, E. de Sturler, A. Sheffer, Y. Aydin, C. Siefert,
Preconditioners for Indefinite Linear Systems
Arising in Surface Parameterization,
Proceedings of the 10th International Meshing Round Table,
Newport Beach, CA, October 710, 2001, Sandia National
Laboratories, (also available from
http://www.andrew.cmu.edu/user/sowen/imr10.html),

E.
de Sturler, J. Hoeflinger, L. Kale, and M.
Bhandarkar,
A New Approach to Software Integration Frameworks
for MultiPhysics Simulation codes, in The Architecture
of Scientific Software, R.F. Boisvert, P.T.P.
Tang, eds., Kluwer Academic Publishers,
Boston, 2001, ISBN 0792373391.

M.
Bhandarkar, L.V. Kale, E. de Sturler, J.
Hoeflinger,
Adaptive Load Balancing for MPI
Programs, Lecture Notes in Computer Science 2074,
V.N. Alexandrov e.a.
(Eds.): Proceedings of the International Conference in Computational
Science, May 2830, 2001, San Francisco, CA, pp. 108117, SpringerVerlag, 2001.

A.
Sheffer and E. de Sturler,
Surface Parameterization for Meshing by
Triangulation Flattening, Proceedings of the 9th
International Meshing Round Table Conference 2000, New Orleans, October
25, 2000, pp. 161172, Sandia National Laboratories, (also
available from http://www.andrew.cmu.edu/user/sowen/imr9.html).

E.
de Sturler,
Truncation Strategies for Optimal Krylov Subspace
Methods, ©1999 SIAM, SIAM Journal on Numerical Analysis Vol.
36 (1999), pp. 864889. Awarded the second prize at the Leslie Fox
Prize Meeting 1997.

E.
de Sturler.
Variations on the JacobiDavidson
Theme. In David Kincaid and Anne
Elster, editors: Iterative Methods in Scientific
Computation IV: Proceedings of the Fourth IMACS International
Symposium on Iterative Methods in Scientific Computation, honoring the
75th birthday of David M. Young, Austin, Texas, October 1820,
1998, IMACS series in Computational and Applied Mathematics,
Volume 5, IMACS 1999, pp. 313323.

E.
de Sturler. BiCG Explained.
Householder Symposum XIV: Proceedings of the
Householder International Symposium in Numerical Algebra, Chateau
Whistler, Whistler, BC, Canada, June 1319, 1999.

E.
de Sturler and D. Loher,
Parallel Iterative Solvers for Irregular Sparse
Matrices in High Performance Fortran, Journal of
Future Generation Computer Systems Vol. 13 (1998), pp. 315325.
Special issue containing updated versions of the 15 best papers
selected out of 130 papers accepted for HPCN’97.

E.
de Sturler and V. Strumpen,
Scientific Programming with High Performance
Fortran: A Case Study Using the xHPF Compiler,
Scientific Programming Vol. 6 (1997), pp. 127152. Special issue:
High Performance Fortran Comes of Age.

E.
de Sturler and D. Loher.
Implementing
Iterative Solvers for Irregular Sparse Matrix Problems in High
Performance Fortran. In C.D. Polychronopoulos, K. Joe, K. Araki, M.
Amamiya, editors: High Performance Computing,
International Symposium, ISHPC'97, Fukuoka, Japan, November 4  6, 1997,
Lecture Notes in Computer Science 1336, SpringerVerlag, Berlin, Heidelberg, Germany,
1997.

E.
de Sturler,
Nested Krylov Methods based on
GCR, Journal of Computational and Applied
Mathematics Vol. 67 (1996), pp. 1541.

E.
de Sturler,
A Performance Model for Krylov Subspace Methods
on Meshbased Parallel Computers, Parallel
Computing Vol. 22 (1996), pp. 5774.

E.
de Sturler.
Innerouter Methods with Deflation for Linear
Systems with Multiple RightHand Sides. In
Householder Symposium XIII, Proceedings of the Householder Symposium on
Numerical Algebra, pp. 193196. June 17  26, 1996,
Pontresina, Switzerland.

E.
de Sturler and H. A. van der Vorst,
Reducing the Effect of Global Communication in
GMRES(m) and CG on Parallel Distributed Memory
Computers, Applied Numerical Mathematics (IMACS),
Vol. 18 (1995), pp. 441459.

F.
Nataf, F. Rogier,
and E. de Sturler.
Domain Decomposition Methods for Fluid
Dynamics. In A. Sequeira, editor: NavierStokes Equations and Related Nonlinear
Problems, pp. 367376, New York, 1995. Plenum Press.

E.
de Sturler,
Incomplete Block LU Preconditioners on Slightly
Overlapping Subdomains for a Massively Parallel
Computer, Applied Numerical Mathematics (IMACS),
Vol. 19 (1995), pp. 129146.

Eric
de Sturler.
IBLU Preconditioners for Massively Parallel
Computers. In D. E. Keyes & J.
Xu, editors: Domain Decomposition Methods in Science
and Engineering, Proceedings of the Seventh International Conference on
Domain Decomposition, October 2730, 1993, The Pennsylvania State
University, pp. 395400, American Mathematical Society, Providence, USA,
1994.

C.
Clémençon, K. M. Decker, A. Endo, J.
Fritscher, G. Jost, T.
Maruyama, N. Masuda, A. Müller, R.
Rühl, W. Sawyer, E. de Sturler, B. J. N. Wylie, and
F. Zimmermann,
Architecture and Programmability of the NEC
Cenju3, SPEEDUP, Vol. 8(2) (1994), pp. 1522.

E.
de Sturler.
Iterative Methods on Distributed Memory
Computers, Ph.D. thesis, Delft University of
Technology, Delft, The Netherlands, October 1994 (ISBN
9090075798).

E.
de Sturler and H. A. van der Vorst.
Communication
Cost Reduction for Krylov Methods on Parallel
Computers.
In W. Gentzsch and U. Harms, editors:
HighPerformance Computing and Networking, Lecture Notes in Computer
Science 797, pages 190195, SpringerVerlag,
Berlin, Heidelberg, Germany, 1994.

E.
de Sturler and D. R. Fokkema.
Nested Krylov Methods and Preserving the
Orthogonality. In N. Duane Melson, T. A. Manteuffel,
and S. F. McCormick, editors, Sixth Copper Mountain Conference on
Multigrid Methods, NASA Conference Publication 3224,
Part 1, pages 111125, NASA Langley Research Center, Hampton, VA, USA,
1993.

E.
de Sturler.
A Parallel Variant of
GMRES(m). In J.J.H. Miller and
R.Vichnevetsky, editors, Proceedings of the
13th IMACS World Congress on Computation and Applied Mathematics, pp.
682683, Dublin, Ireland, 1991. Criterion Press.

G.
H. Schmidt and E. de Sturler.
Multigrid
for porous medium flow on locally refined three dimensional
grids.
In W. Hackbusch and U.
Trottenberg, editors, Multigrid Methods: Special Topics and Applications
II, proceedings of the 3rd European Conference on
Multigrid Methods, Bonn, Germany, October 14, 1990,
GMDStudien Nr. 189, pages 309318,
Gesellschaft fòr
Mathematik und Datenverarbeitung, Sankt
Augustin, Germany, 1991.
Full List of Invitations and Invited/Plenary
Presentations
(old – needs
updating)

Krylov Recycling for QuasiNewton methods, 5th European
Conference on Computational Methods in Applied Sciences and
Engineering/8th World Congress on Computational Mechanics (ECCOMAS
2008/WCCM8), Venice, Italy, June 30 – July 4, 2008.

An
Overview of Efficient Solution Methods for Sequences of Linear
Systems,
in Minisymposium, 6th International Congress
on Industrial and Applied Mathematics (ICIAM 2007), Zurich, Switzerland,
July 1620, 2007,

Solving Long Sequences of Linear Systems, Department of
Mathematics, TU Berlin (Berlin, Germany), May 22, 2007,

SchlumbergerDoll
Research & Tufts University, February 18 – 21, SchlumbergerTufts
Computational and Applied Math Seminar, April 19, 2007, A Trust
Region Method with Regularized GaussNewton Step for Illconditioned
Nonlinear Problems,

Recycling
Krylov Basis Methods,
in Minisymposium, SIAM Conference on
Mathematical & Computational Issues in the Geosciences, Santa Fe,
New Mexico, March 1922, 2007,

Research
Directions and Enabling Technologies for the Future of
CS&E,
Panel member, SIAM Conference on Computational Science and Engineering,
Costa Mesa, California, February 1923, 2007,

Large
Scale Topology Optimization Using Preconditioned
Krylov Subspace Recycling and Continuous
Approximation of Material Distribution,
Keynote Lecture, Multiscale and Functionally
Graded Materials Conference 2006 (FGM 2006),
Ko Olina,
O’ahu, Hawaii, October 1518, 2006,

Fast
Solution of Long Sequences of Linear Systems in Computational
Mechanics,
in Minisymposium, 7th World Congress on
Computational Mechanics, Los Angeles, California, July 1621,
2006,

WrightPatterson
Air Force Base, August 1415, 2006, Topology Optimization Applied to
Advanced Structural Systems,

Schlumberger
Doll Research, Cambridge, August 8, 2006, Fast Solvers for Long
Sequences of Linear Systems,

Parallel
Multilevel Preconditioners for Simulations on
Adaptively Refined Meshes,
SIAM Conference on Parallel Processing for Scientific Computing, San
Francisco, California, February 2224, 2006,

Department
of Computer Science, College of William and Mary, October 28, 2005,
Fast Solvers for Long Sequences of Linear Systems and their
Analysis,

Computer
Science Research Institute, summer faculty, Sandia National Laboratories,
Albuquerque, June  August, 2005,

Recycling
Krylov Subspaces for Sequences of Linear
Systems: Convergence Analysis,
45 minute plenary lecture at the Householder XVI Symposium on
Numerical Linear Algebra, Seven Springs Mountain Resort,
Champion, PA, May 2327, 2005,

Scientific
Computing and Imaging Institute, University of Utah, Salt Lake City, Utah,
May 911, 2005, Fast Solvers for Long Sequences of Linear
Systems,

Parallel
Multilevel Preconditioners for Simulations on
Adaptively Refined Meshes,
5^{th} Symposium of the Los Alamos Computer Science Institute
(LACSI), AMR Workshop, Santa Fe, New Mexico, October 1214, 2004,

Optimization
Technology Center and Northwestern University (broadcast through Access
Grid), Evanston, Illinois, October 6, 2004, Probing for
Schur Complements and Preconditioning Generalized
SaddlePoint Problems,

Department
of Mathematics and Computer Science, Emory University, Atlanta, Georgia,
March 1719, 2004, Iterative Solution of a Sequence of Linear
Systems,

SCCM
Program, Stanford University, February 27, 2004, Iterative Solution of
a Sequence of Linear Systems,

Department
of Computer Science, University of Maryland at College Park, December
911, 2004, Preconditioners for
Generalized SaddlePoint Problems,

Preconditioners
for Generalized SaddlePoint Problems,
Solution Methods for SaddlePoint Systems in Computational Mechanics,
workshop organized by Sandia National Labs and the SCCM Program Stanford,
Santa Fe, New Mexico, December 36, 2003,

Updating,
Truncating, and Reusing Krylov
Spaces,
Dagstuhl Seminar on Theoretical and
Computational Aspects of Matrix Algorithms, Schloss Dagstuhl,
Wadern, Germany, October
1118, 2003,

Department
of Mathematics, Tufts University, September 1721, 2003, Iterative
Solution of a Sequence of Linear Systems,

Parallel
MultiPhysics Integration Frameworks for Virtual Rocket
Science,
in Minisymposium ‘Supporting Infrastructures for
Computational Mechanics Applications’ (Carter Edwards), 7th US
National Congress on Computational Mechanics 2003, July 2730,
2003, Albuquerque, NM,

Preconditioning
Saddlepoint Problems using Cheap Approximations to the
Schur Complement,
in Minisymposium Analysis and Algorithms for
Illconditioned Saddlepoint Systems (KimChuan Toh), ICIAM 2003, July 711, 2003, Sydney, Australia,

Krylov
Methods for Lattice QCD,
Third International Workshop on Numerical Analysis and Lattice QCD,
University of Edinburgh & UK National eScience Centre,
eScience, Institute, Edinburgh, Scotland, June 30 – July 4,
2003,

Innerouter
Iteration for a Sequence of Linear Systems,
Sparse Matrices and Grid Computing, St Girons
Deux, June 1013, 2003, St.
Girons, France,

Preconditioning
Saddle Point Problems using Cheap Approximations to the
Schur Complement,
ETNA: Following the Flows of Numerical Analysis, Kent, OH, May
2931, 2003,

Ecole
Polytechnique de Montreal, Dept. of Computer
Science, Montreal, Canada, November 1923, 2002, Algorithmic and
Accuracy Issues in Surface Parameterization,

Centre
de Recherche en Calcul
Applique (CERCA), Montreal November 1923, 2002,
Fast Solution of Symmetric and Nonsymmetric
Indefinite Problems,

Fast Solution Methods and Preconditioners for
Symmetric and Nonsymmetric Indefinite Systems, Plenary presentation at the
15^{th} Householder Symposium in Numerical Linear Algebra (June
2002),

Normwise
and Iterationwise Bounds on the Convergence of Krylov Subspace Methods relative to GMRES,
in
Minisymposium on Fundamentals of
Krylov Subspace Methods (Anne
Greenbaum and Nick Trefethen), Copper Mountain Conference on
Iterative Methods, Copper Mountain, Colorado, March 2429, 2002

Accuracy
and Algorithmic Issues in Surface Parameterization,
Fifth AFA Conference on “Curves and Surfaces”, June 27July 3, 2002, St.
Malo, Bretagne, France, in
minisymposium “Parameterization and Surface
Reconstruction”
(Michael Floater),

University
of Leiden (Netherlands), Department of Mathematics, January 7, 2002,
Fast Solution Methods and Preconditioners for
Symmetric and Nonsymmetric Indefinite Systems,

University of Utrecht (Netherlands), Department of Mathematics,
December 14, 2001  January 12, 2002,
Fast Solution Methods and Preconditioners for
Symmetric and Nonsymmetric Indefinite Systems,

Extending and truncating the search space in the
JacobiDavidson Algorithm,
in Minisymposium on Invariant Subspaces (H.A.
van der Vorst), SIAM Conference on Numerical Linear Algebra, Raleigh,
NorthCarolina, USA, October 2326, 2000,

Analysis
of Newton and NewtonKrylov Methods for
Nonlinear Problems with Illconditioned Jacobians,
Workshop
on Solution Methods for LargeScale Nonlinear Problems, Lawrence Livermore
National Laboratory, CASC/Institute for Terascale Simulation, Livermore, CA, July 2628, 2000,

Lawrence
Livermore National Laboratory/CASC, Livermore, CA, March 1219, 2000,
Programming Environments for MultiApplication
Simulation,

Analyzing
Krylov Subspace Methods by their
Projections,
in Minisymposium on the Analysis of
Krylov Subspace Methods (Anne
Greenbaum), 2000 Joint Mathematics Meetings
(AMS/MAA/SIAM), Washington DC, January 1922, 2000,

Ecole
Polytechniqe / Centre de
Mathematiques Appliquées,
Paris (Palaiseau), France, 35 January, 2000,
Threedimensional, Integrated, Simulation of Solid Propellant
Rockets (overview),

Universite
Paris VI Pierre et Marie Curie /
Laboratoire d’Analyse
Numerique, Paris, France, January 3, 2000,
Threedimensional, Integrated, Simulation of Solid Propellant Rockets 
coupling applications on separate grids,

Argonne
National Laboratory / Mathematics and Computer Science Division, Chicago,
Illinois, USA, December 9, 1999, A Programming Environment for
MultiApplication Simulations,

Swiss
Federal Institute of Technology (ETH Zurich) / Department of Civil and
Environmental Engineering (VAW), Zurich, Switzerland, July 15August 1,
1999, Fellow of the European Research Consortium on Flow, Turbulence, and
Combustion (ERCOFTAC), Integrated, Threedimensional, Simulation of Solid Propellant
Rockets,

BiCG
Explained,
Householder
Symposium XIV, Chateau Whistler, Whistler, BC, Canada, June 1319,
1999,

The
Convergence of BiCG,
A Mathematical Journey through Analysis, Matrix Theory, and Scientific
Computing: A Conference in Honor Richard Varga's
70th Birthday, Kent State University, Kent, OH, USA, March
2527, 1999,

Los
Alamos National Laboratory, Los Alamos, NM, USA, March 1718,
1999, The Convergence of
BiCG,

Sandia
National Laboratories, Albuquerque, NM, USA, March 1516,19,
1999,

Truncation of Optimal Krylov Subspace
Methods,

The
Convergence of BiCG,

Technische
Universität Bergakademie Freiberg / Institut für Angewandte Mathematik II,
Freiberg, Germany, 1115 November, 1998, The Convergence of
BiCG,

College
of William and Mary / Department of Computer Science, Williamsburg,
Virginia, USA, 2127 October, 1998, Truncation Strategies for Optimal
Krylov Subspace Methods,

Variations
on the JacobiDavidson Theme,
plenary lecture, Fourth IMACS International
Symposium on Iterative Methods in Scientific Computation, honoring the
75th
birthday of David M. Young, Austin, Texas, USA, October 1820,
1998,

Panel
member in the Forum Discussion at the High Performance
Fortran User Group Conference 1998 (HUG’98), Porto,
Portugal, 2526 June, 1998, The Future of High Performance
Fortran...,

Katholieke
Universiteit Leuven (KUL), Leuven, Belgium,
2224 April, 1998, Implementation Aspects and Parallelism in
Krylov Methods. (in KULUCL Graduate Courses in
Numerical Analysis / Seminar Series: Iterative Methods for Large Scale
Systems and Eigenvalue Problems, organized by
Paul Van Dooren and Stefan
Vandewalle),

Efficient
Parallel Implementations of Krylov Subspace
Methods,

Message
Passing and Data Parallel Implementation Strategies,

Truncation
Strategies for Optimal Krylov Subspace
Methods,

Stanford
University / SCCM / Dept. Computer Science, USA, 1821 February, 1998, Parallel Iterative Solvers for Irregular Sparse Matrices in High
Performance Fortran,

Ecole
Polytechniqe / Centre de
Mathematiques Appliquées,
Paris (Palaiseau), France, 26 February,
1998,

The
Convergence of BiCG,

Parallel
Iterative Solvers for Irregular Sparse Matrices in High Performance
Fortran,

Australian
National University/Computer Sciences Laboratory, Canberra, Australia,
1016 November, 1997,

Truncation
Strategies for Optimal Krylov Subspace
Methods,

Parallel
Iterative Solvers for Irregular Sparse Matrices in High Performance
Fortran,

Stanford
University / SCCM, USA, June 30  August 12, 1997, Truncation
Strategies for Optimal Krylov Subspace
Methods,

A
Robust and Efficient Truncated GMRES,
Third IMACS International Symposium on Iterative Methods in Scientific Computation, Jackson Hole, Wyoming,
USA, July 912, 1997 (in minisymposium),

Truncation
Strategies for Optimal Krylov Subspace
Methods,
Leslie Fox Prize Meeting 1997, University of Dundee, Scotland, June 23,
1997. Awarded 2nd Prize,

MIT Lab.
for Computer Science, Cambridge MA, USA, 1418 October, 1996, Parallel
Solution of Irregular Sparse Problems using High Performance Fortran,
(in Supercomputing Technologies Seminar),

InnerOuter
Methods with Deflation for Linear Systems with Multiple Right Hand
Sides,
Householder Symposium XIII, 1721 June, 1996, Pontresina, Switzerland,

Stanford
University/SCCM, USA, 1519 April, 1996, InnerOuter Methods with
Deflation for Linear Systems with Multiple Right Hand
Sides,

InnerOuter
Methods with Deflation for Multiple Right Hand Sides,
plenary
lecture, Workshop on Large Sparse Matrix Computations and Lattice Quantum
Chromodynamics, University of Kentucky,
Lexington, USA, August 31September 2, 1995.
(to
do)
