NA Digest Monday, July 24, 2006 Volume 06 : Issue 30

Today's Editor:
Tamara G. Kolda
Sandia National Labs

Submissions for NA Digest:

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Information via email about NA-NET:

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From: Michael Overton <>
Date: Sat, 22 Jul 2006 06:04:33 -0400
Subject: HIFOO: a MATLAB package for H-infinity Fixed Order Optimization

HIFOO: a MATLAB package for H-infinity Fixed Order Optimization

HIFOO is a new MATLAB package aimed at solving fixed-order
stabilization and local optimization problems. It depends on a new
hybrid algorithm for nonsmooth, nonconvex optimization based on
several techniques, namely quasi-Newton updating, bundling and
gradient sampling. The user may request HIFOO to optimize one of
several objectives, including H-infinity norm, which requires either
the Control System Toolbox for MATLAB or, for much better performance,
the LINORM function in the SLICOT package. No other external package
is required, but the quadratic programming code QUADPROG from either
MOSEK or the Optimization Toolbox for MATLAB is recommended. Numerical
experiments on benchmark problem instances from the COMPLIB database
indicate that HIFOO could be an efficient and reliable computer-aided
control system design (CACSD) tool, with a potential for realistic
industrial applications.

HIFOO may be freely downloaded from


From: Tim Davis <>
Date: Thu, 20 Jul 2006 17:58:45 -0400
Subject: In Berkeley U. did Velvel Kahan a floating standard tome decree

Many of you are probably aware of Coleridge's poem:

In Xanadu did Kubla Khan
A stately pleasure-dome decree :
Where Alph, the sacred river, ran
Through caverns measureless to man
Down to a sunless sea.

What is less known is his keen interest in accurate
floating point arithemtic. Later on in the poem,
he waxes eloquent about "floating midway on the
waves", clearly revealing an interest in floating
point accuracy when computing with wavelets as well.

Here is the variant on his poem on the IEEE Floating Point Standard:

In Berkeley U. did Velvel Kahan
A floating standard tome decree :
Where Inf, the underflow, and NaN
Threw 'xceptions measureless to man
To C++ and C.

(Another installment in honor of Gene Golub's
request to liven up the NA Digest. If this is too lively,
feel free to beg me to stop. Your request will be duly noted).


From: Simon Chandler-Wilde <>
Date: 18 Jul 2006 16:17:08 +0100
Subject: Waves 2007 23-27 July 2007

WAVES 2007, 23-27 July 2007, Reading, UK

First Announcement and Call for Papers

The 8th International Conference on Mathematical and Numerical Aspects of
Waves (Waves 2007) will be held at the University of Reading, organised
jointly with INRIA.

Confirmed Invited Speakers:

Mark Ablowitz (Colorado, USA)
Annalisa Buffa (Pavia, Italy)
Weng Cho Chew (Illinois, USA)
Tom Hagstrom (New Mexico, USA)
Andreas Kirsch (Karlsruhe, Germany)
Giles Lebeau (Nice Sophia-Antipolis, France)
Ross McPhedran (Sydney, Australia)
John Toland (Bath, UK)

This conference is one of the main venues where significant advances in the
analysis and computational modeling of wave phenomena and exciting new
applications are presented. Conference themes include but are not limited
to forward and inverse scattering, nonlinear wave phenomena, fast
computational techniques, numerical analysis, absorbing layers and
approximate boundary conditions, analytic and semi-analytic techniques for
wave problems, domain decomposition, guided waves, random media etc.


From: <CARGESE2007@CEA.FR>
Date: Mon, 24 Jul 2006 12:21:27 +0200
Subject: Trends in Modeling for Industrial Multiphase Flows, Sep 16-22, 2007

The French Atomic Energy Commission (CEA, with the
Center for Applied Mathematics (CMLA,
at ENS de Cachan (Cachan, France) are pleased to announce a workshop
on the "Trends in Numerical and Physical Modeling for Industrial
Multiphase Flows" which will be held in Cargese (Corsica, France) from
september 16th to 22nd, 2007 (it is 2007 and not 2006).
You will find more details in the attached document and at the workshop
web address :

Best regards,
91680 Bruyeres-le-chatel, France
contact email :


From: Luc Giraud <>
Date: Fri, 21 Jul 2006 10:01:50 +0200
Subject: Conference in Toulouse on Preconditioning Techniques, July 9-12, 2007

JULY 9-12, 2007

The 2007 International Conference on Preconditioning Techniques for
Large Sparse Matrix Problems is a sequel to similar meetings held in
Minneapolis (MN) in 1999, Tahoe (CA) in 2001, Napa (CA) in 2003, and
Atlanta (GA), in 2005. The 2007 conference will take place
immediately before the International Congress on Industrial and
Applied Mathematics (ICIAM 2007), which will take place in Zurich
(Switzerland) on July 16-20, 2007 ( The
conference, which has received the endorsement of the SIAM Activity
Group on Linear Algebra, focuses on preconditioning techniques for
solving various matrix problems, particularly those related to
large-scale scientific and industrial applications.

March 15, 2007: Deadline for submission of contributed abstracts (3 pages
max, please follow the guidelines given on the conference web-site below).
April 15, 2007: Notification of acceptance for contributed abstracts.

PLENARY PRESENTATIONS. The following invited speakers have agreed to
give plenary presentations.

Mario Bebendorf, Leipzig University, Germany
Jacek Gondzio, University of Edinburgh, UK
Yvan Notay, Universit Libre de Bruxelles, Belgium
Padma Raghavan, The Pennsylvania State University, USA
Stefan Reitzinger, Computer Simulation Technology GmbH (CST), Germany
Sivan Toledo, Tel-Aviv University, Israel
Jinchao Xu, Pennsylvania State University, USA

FURTHER INFORMATION is available from the conference web site:


From: Ali Pinar <>
Date: Thu, 20 Jul 2006 11:42:34 -0700
Subject: CFP: Grid and Pervasive Computing, Paris, France May 2-4, 2007


The Second International Conference on Grid and Pervasive Computing
Paris, France, May 2-4, 2007

Submission Deadline: November 30, 2006

Paper Submission Site:

PDF Version CFP is available here:


From: Vassilios Dougalis <>
Date: Thu, 20 Jul 2006 16:09:13 +0300
Subject: Researcher position in CFD at IACM-FORTH

The *Institute of Applied and Computational Mathematics*
( , a Research Institute
of the Foundation for Research & Technology-Hellas, invites applications
for a position at the level of *Researcher C* (ˇAssociate Researcher˘)
in the area of Computational Fluid Dynamics. (This position is
approximately equivalent to that of an Assistant Professor without
tenure at a Greek University).

Interested candidates may submit an application, including a detailed
CV, copies of their research publications and academic degrees, and
three letters of reference to:

Ms. Liana Zacharioudaki
P.O.Box 1385
711 10 Heraklion, Crete

Tel. +30-2810-391800
Fax +30-2810-391801
e-mail: <>

Deadline for applications : *September 30, 2006*


From: Stephane Lanteri <>
Date: Tue, 18 Jul 2006 18:50:16 +0200
Subject: Postdoc position in Scientific Grid Computing at INRIA Sophia Antipolis

Postdoctoral project at INRIA Sophia Antipolis
Hierarchical mesh partitioning for parallel scientific computing on a Grid

Grid computing is currently the subject of a lot of research activities
world-wide. Most of these activities aim at providing the necessary tools for
dealing with aspects such as administration, security, performance simulation,
discovery, scheduling and volatility of resources, etc. Few studies are
centred on applications. Computational grids are particularly well suited to
compute intensive, embarrassingly parallel applications. The situation is less
clear for non- embarrassingly parallel scientific computing applications such
as those involving the numerical resolution of system of Partial Differential
Equations using mesh based (finite difference, finite volume or finite
element) methods. The standard parallelization strategy for mesh based
numerical solvers for the solution of systems of PDEs combines a partitioning
of the computational mesh with a message passing programming model. In most
cases, grid-enabled numerical simulation tools are essentially a direct
porting of parallel software previously developed for clusters of PCs or
parallel supercomputers, thanks to the availability of appropriate MPI
implementations such as MPICH-G2. Moreover, these grid-enabled simulation
software rarely take into account important architectural issues
characterizing computational grids, such as heterogeneity both of processing
nodes and interconnection networks, that greatly impact the parallel

The DiscoGrid project
( aims at
studying and promoting a hierarchical paradigm for programming
non-embarrassingly parallel scientific computing applications on distributed,
heterogeneous, computing platforms. The target applications require the
numerical resolution of systems of partial differential PDEs modeling
electromagnetic wave propagation (CEM) and fluid flow (CFD) problems. More
importantly, the underlying numerical methods share the use of unstructured
meshes and are based on well known finite element and finite volume

The general objective of this postdoctoral project will be to design and
experiment mesh partitioning strategies that take into account: (a) the
heterogeneity of processing nodes and interconnection networks of a grid
computing platform and, (b) the hierarchical parallel programming paradigm
considered in the DiscoGrid project. The proposed work will also include the
adaptation of existing parallel simulation software in order to deal with the
hierarchical programming model.

For more details including informations on how to apply to this
post-doctoral project please refer to:


From: "xavier warin" <>
Date: Fri, 21 Jul 2006 13:27:24 +0200
Subject: Postdoctoral position at Electricite de France

Postdoctoral position at Electricite de France

A post doctoral scientist with skills in grid computing is being sought for
the beginning of 2007.

The candidate will have strong background in algorithm and object
programming with applications achieved in C++/java. He should be aware of
software quality techniques and willing to use them.

Knowledge of numerical methods in stochastic programming methods in finance
will be appreciated.

The appointment is for one year. The candidate will work under the direction
of Xavier Warin, Aline Pajot at EDF and Stephane Vialle, Virginie Galtier at

The post is located at Clamart near Paris at EDF research center. The
monthly salary is roughly 2000 euros.

This position is sponsored by Agence Nationale de la Recherche. Information
on the project can be found at .

Application should be sent to


From: Carl Ollivier-Gooch <>
Date: Fri, 21 Jul 2006 15:41:12 -0700
Subject: PhD Studentship in Parallel Mesh Generation at U British Columbia

PhD Studentship in Parallel Mesh Generation at U British Columbia

The Advanced Numerical Simulation Laboratory at the University of
British Columbia develops unstructured mesh generation algorithms and
numerical methods for accurate, efficient solution of PDE's on
unstructured meshes (with an emphasis on problems in aerodynamics).

We currently have a need to extend our mesh generation code to run in
massively parallel environments (thousands of processors), to provide
meshing and adaptation support for applications both within and outside
our group. We will almost certainly need to go beyond existing research
in parallel unstructured meshing to develop algorithms that scale
sufficiently well.

This position is a PhD research studentship, with an anticipated start
date of January 2007. The successful applicant should have a background
in CFD and strong C++ programming skills. Experience with unstructured
mesh generation will be helpful but it is not essential. Students whose
background is in a field other than mechanical engineering can easily be
accomodated through UBC's interdisciplinary Institute for Applied

For more information, contact Carl Ollivier-Gooch (,


From: "Commun. Comput. Phys." <>
Date: Fri, 21 Jul 2006 17:25:48 +0800 (HKT)
Subject: Contents, Commun. Comput. Phys. Vol. 1 No. 4

Communications in Computational Physics

Volume 1, Number 4
Published in August 2006

Review Article:
Y. Q. Wang, H. Q. Lin and J. E. Gubernatis
Zero temperature numerical studies of multiband lattice models of strongly
correlated electrons.
Commun. Comput. Phys., 1 (2006), pp. 575-615.

Regular Articles:
I. V. Karlin, S. Ansumali, C. E. Frouzakis and S. S. Chikatamarla
Elements of the lattice Boltzmann method I: Linear advection equation.
Commun. Comput. Phys., 1 (2006), pp. 616-655.

H.-Z. Tang
A moving mesh method for the Euler flow calculations using a directional
monitor function.
Commun. Comput. Phys., 1 (2006), pp. 656-676.

J. S. Shang
Simulating microwave radiation of pyramidal horn antenna for plasma
Commun. Comput. Phys., 1 (2006), pp. 677-700.

S. Satake, K. Yamamoto and S. Igarashi
High-accuracy polishing technique using dwell time adjustment.
Commun. Comput. Phys., 1 (2006), pp. 701-715.

D. Wang
A new method for efficient generation of high quality triangular surface
Commun. Comput. Phys., 1 (2006), pp. 716-735.

A. H. Poghosyan, G. A. Yeghiazaryan, H. H. Gharabekyan and A. A. Shahinyan
The GROMACS and NAMD software packages comparison.
Commun. Comput. Phys., 1 (2006), pp. 736-743.

S. Deng and W. Cai
A fourth-order upwinding embedded boundary method (UEBM) for Maxwell's
equations in media with material interfaces: Part I.
Commun. Comput. Phys., 1 (2006), pp. 744-764.


From: "Saff, Edward B" <>
Date: Fri, 21 Jul 2006 09:02:02 -0500
Subject: Contents, Constructive Approximation Vol. 24 No. 2 2006

Constructive Approximation

Vol. 24 No. 2 2006
Table of Contents

"Nonlinear Approximation and Muckenhoupt Weights"
by G. Kerkyacharian and D. Picard
Pages 123-156

"Nonlinear Approximation with Dictionaries. II. Inverse Estimates"
by R. Gribonval and M. Nielsen
Pages 157-173

"Sobolev Error Estimates and a Bernstein Inequality for Scattered
Data Interpolation via Radial Basis Functions"
by F.J. Narcowich, J.D. Ward and H. Wendland
Pages 175-186

"Classification of Refinable Splines"
by X.-R. Dai, D.-J. Feng and Y. Wang
Pages 187-200

"Bi-orthogonal Polynomials on the Unit Circle, Regular
Semi-Classical Weights and Integrable Systems"
by P.J. Forrester and N.S. Witte
Pages 201-237

"Addendum to 'On the L1-Condition Number of the Univariate
Bernstein Basis'"
by T. Lyche and K. Scherer
Pages 239-243

Constructive Approximation
An International Journal for Approximations and Expansions
Published by Springer

End of NA Digest