- Today's Editor:
- Cleve Moler
- The MathWorks, Inc.
- moler@mathworks.com

- Quad-double and Double-double Precision Software
- New Linear Algebra Development Environment
- New Book on Parallel Algorithms in Optimization
- Watson Sparse Matrix Package
- Numerical Quadrature for Given points in Semi-infinite Domain
- Survey of Freely Available Linear Algebra Software
- Computational & Algorithmic Representations Of Geometric Objects
- Change of Address for Chuck Romine
- EMS-SIAM Conference in Berlin
- Workshop in Hohenwart on Chemical Engineering and Biotechnology
- Faculty Position at Chinese Academy of Sciences
- Postdoctoral Position at Bilkent University, Ankara, Turkey
- Postdoctoral Position at CERCA
- Postdoctoral Position at Technische Universiteit Eindhoven
- Research Position at CEMAGREF
- Contents, IMA Journal of Numerical Analysis

**URL for the World Wide Web:**
http://www.netlib.org/na-net/na_home.html

-------------------------------------------------------

From: David Bailey <DHBailey@lbl.gov>

Date: Mon, 04 Jun 2001 12:22:03 -0700

**Subject: Quad-double and Double-double Precision Software**

I am pleased to announce new extended precision arithmetic software. It

provides the following data types from either C or Fortran programs:

double-double 106 mantissa bits, or approx. 32 decimal digits

quad-double 212 mantissa bits, or approx. 64 decimal digits

In addition to the basic operations, numerous transcendental functions,

including sqrt, sin, cos and exp, are also included. This software is

slower than ordinary double precision, but is substantially faster than

using arbitrary precision packages for these precision levels.

This subroutine library is coupled with C++ and Fortran-90 translation

modules, which use operator and function name overloading, to

automatically perform the task of translating C or Fortran code to use

the library. Thus in most cases, only minor modifications need to made

to existing C or Fortran program to utilize these precision types. Here

is an example of a typical Fortran-90 program that uses the package:

program testdd

use qdmodule

type (qd_real) a, b, c

a = -1.d0

b = 2.d0

c = acos (a) * sqrt (b)

call qdwrite (6, c)

stop

end

This program produces the result

4.442882938158366247015880990060693698614621689375690223085395607E0

which is pi*sqrt(2) correct to 63 decimal digits.

This software was written by Yozo Hida of U.C. Berkeley, based on

earlier work by myself and Sherry Li of Lawrence Berkeley National

Laboratory. The software and documentation is available at the web site:

http://www.nersc.gov/~dhbailey/mpdist/mpdist.html

We would greatly appreciate any comments or bug reports by users of any

of this software. The above site also includes software for

multiprecision (arbitrary precision) arithmetic. The multiprecision

software will be revised for increased performance and usability in the

next few months.

DHB

David H Bailey "Computo ergo sum."

Lawrence Berkeley National Lab Tel. 510-495-2773

Mail Stop 50B-2239 Email: dhbailey@lbl.gov

Berkeley, CA 94720 http://www.nersc.gov/~dhbailey

------------------------------

From: Robert van de Geijn <rvdg@cs.utexas.edu>

Date: Sat, 9 Jun 2001 12:10:45 -0500

**Subject: New Linear Algebra Development Environment**

The Formal Linear Algebra Methods Environment (FLAME) is a new

methodology and library that supports the derivation and

implementation of (dense) linear algebra kernels like those provided

by the BLAS and LAPACK. This environment provides

- a recipe for derivation of families of algorithms. For each

algorithm in the family, the recipe leads to a statement of the

algorithms that hides indexing details. Moreover, the recipe provides

a constructive proof of the correctness of the algorithm.

- a library of C routines for the implementation of the algorithms.

Since the correctness of the algorithm does not necessarily lead to a

correct implementation due to indexing errors, we provide a library of

routines that allows the algorithm to be translated to code in a way

that minimizes the opportunity for the introduction of bugs.

- a collection of LaTeX commands and environments for writing

papers about the implementations.

- FLAME implementations are easily converted to parallel

implementations using PLAPACK.

http://www.cs.utexas.edu/users/plapack/

- yes, we do have a FORTRAN interface as well.

- yes, our performance is competitive with the leading brand.

The methodology has been validated through an implementation of a

basic linear algebra library, including the BLAS, and LU, QR, and

Cholesky factorization based solvers. Moreover, the environment was

used as part of a class here at UT-Austin, where undergraduates with

limited background in linear algebra implemented a range of linear

algebra operations by following the recipe. Their projects have been

assembled into a coherent document:

John A. Gunnels and Robert A. van de Geijn, Developing Linear Algebra

Algorithms: A Collection of Class Projects, FLAME Working Note #3, The

University of Teas at Austin, Department of Computer Sciences.

Technical Report TR-2001-19. May 2001.

http://www.cs.utexas.edu/users/flame/pubs.html

We welcome comments from the linear algebra community.

For more information, visit

http://www.cs.utexas.edu/users/flame/

Regards

Robert van de Geijn

------------------------------

From: Yair Censor <yair@math2.haifa.ac.il>

Date: Sun, 10 Jun 2001 06:46:38 +0200 (IST)

**Subject: New Book on Parallel Algorithms in Optimization**

We are pleased to announce the appearance of this new book (and apologize

if you happen to be exposed to multiple copies of this message):

"INHERENTLY PARALLEL ALGORITHMS IN FEASIBILITY AND OPTIMIZATION

AND THEIR APPLICATIONS"

D. Butnariu, Y. Censor, and S. Reich (Editors),

Elsevier Science Publishers, Amsterdam, The Netherlands, 2001.

For further details, including table of contents and bibliographic and

ordering information, please go to:

http://www.elsevier.nl/locate/inca/622148

An excerpt from the book description on Elsevier's Internet site:

"..... Thus, the editors of this volume, with the support of the Israeli

Academy for Sciences and Humanities, took the initiative of organizing a

Workshop intended to bring together the leading scientists in the

field. The current volume is the Proceedings of the Workshop representing

the discussions, debates and communications that took place. Having all

that information collected in a single book will provide mathematicians

and engineers interested in the theoretical and practical aspects of the

inherently parallel algorithms for feasibility and optimization with a

tool for determining when, where and which algorithms in this class are

fit for solving specific problems.........".

------------------------------

From: Anshul Gupta <anshul@watson.ibm.com>

Date: Tue, 5 Jun 2001 14:18:03 -0400 (EDT)

**Subject: Watson Sparse Matrix Package**

64-bit versions of WSMP (Watson Sparse Matrix Package) are now available

and support both 4-byte (int) and 8-byte (long) integers. WSMP is a

high-performance direct solver for sparse linear systems. Currently,

it can solve symmetric sparse systems in serial, multithreaded, and

message-passing modes without pivoting and unsymmetric sparse systems in

serial and multithreaded parallel modes with pivoting on RS6000/SP parallel

computers. The new 64-bit version would allow users to solve very large

sparse systems on a single large SMP RS6000 system with more than 2 GB

of memory without using multiple MPI processes.

Please visit the WSMP web site for more details, documentation, and

technical papers describing WSMP's solvers and performance results.

http://www.cs.umn.edu/~agupta/wsmp.html

Anshul Gupta

IBM T. J. Watson Research Center

------------------------------

From: Paul Oppenheimer <peo@ERC.MsState.Edu>

Date: Tue, 5 Jun 2001 13:14:27 -0500 (CDT)

**Subject: Numerical Quadrature for Given points in Semi-infinite Domain**

We would appreciate any information (papers, web links, subroutines,

etc.) concerning numerical quadrature schemes for a

semi-infinite domain [0,\infty) or (-\infty,0] under the following

conditions:

1. The analytic form of the function to be integrated is not

known.

2. The function values are known only for a given set of

points (which in general are not special points such

as those for Guassian Quadrature) in the domain.

Paul Oppenheimer

Engineering Research Center Mississippi State University

peo@erc.msstate.edu http://www.erc.msstate.edu/~peo

------------------------------

From: Jack Dongarra <dongarra@cs.utk.edu>

Date: Thu, 07 Jun 2001 15:05:36 -0400

**Subject: Survey of Freely Available Linear Algebra Software**

I'm updating a survey I have been doing for the past few years on freely

available software for the numerical solution of linear algebra problems.

Of interest is software for high-performance computers that's available,

in source form, on the web for solving problems in numerical linear algebra,

specifically dense, sparse direct and iterative systems and sparse iterative

eigenvalue problems. The current list is at:

http://www.netlib.org/utk/people/JackDongarra/la-sw.html

Please let me know about updates and corrections.

I'll post the updated list in a few weeks.

Thanks, Jack

------------------------------

From: Al Thaler <thaler@nsf.gov>

Date: Fri, 8 Jun 2001 12:20:22 -0500

**Subject: Computational & Algorithmic Representations Of Geometric Objects**

NSF and DARPA announce a joint program solicitation called

COMPUTATIONAL and ALGORITHMIC REPRESENTATIONS of GEOMETRIC OBJECTS

(CARGO).

The Division of Computer and Communications Research (C-CR)and the

Division of Mathematical Sciences (DMS) of the National Science

Foundation (NSF) and the Defense Sciences Office of the Defense

Advanced Projects Research Agency (DARPA) plan to support research

and development teams focusing on mathematical and computational

innovations relevant to representation and computational manipulation

of geometrical objects. These awards will be administered by NSF.

Areas of specific interest include:

Computational Topology and Geometry

Computational and Geometric Cartography, including Spatial Statistics

Geometric aspects of Graphics and Computer-Aided Design (CAD)

We particularly encourage proposals for efforts involving

collaborations of experts in the mathematical and computational

sciences with other scientists, engineers, and practitioners

representing diverse application areas.

Proposals for incremental improvements or ongoing efforts will not be

selected for funding. This activity is particularly intended to

encourage new collaborations.

Two types of projects are anticipated:

1. Incubation grants: Standard awards of up to $100K for one or

two years to develop collaborations of mathematical scientists,

computer scientists, and application experts relevant to the

objectives of the CARGO program.

2. Team grants: Continuing awards of up to three years at $200-

$300K per year to support teams of investigators.

Please see the Solicitation for details: it is available at

http://www.nsf.gov/pubs/2001/nsf01111/nsf01111.htm

Cognizant Program Officers:

- Wm Randolph Franklin, Numeric, Symbolic, and Geometric

Computation, Program Director, CISE/C-CR, 1145S, telephone: (703)

292-8912, e-mail: wfrankli@nsf.gov.

- Alvin I Thaler, Mathematical Sciences, Program Director,

DMS/MPS, 1025N, telephone: (703) 292-4863, e-mail:

thaler@nsf.gov.

- Douglas Cochran, Applied & Computational Mathematics,

Program Manager, DARPA/DSO, telephone: (703) 696-2287, e-mail:

dcochran@darpa.mil.

------------------------------

From: Charles Romine <romine@er.doe.gov>

Date: Wed, 06 Jun 2001 09:46:16 -0400

**Subject: Change of Address for Chuck Romine**

I've just joined the MICS office at DOE. I can now be reached at:

Charles Romine, SC-31

U.S. Department of Energy

19901 Germantown Road

Germantown, MD 20874-1290

Tel: (301) 903-5152

Fax: (301) 903-7774

email: romine@er.doe.gov

------------------------------

From: Peter Deuflhard <deuflhard@zib.de>

Date: Thu, 7 Jun 2001 12:27:23 +0200

**Subject: EMS-SIAM Conference in Berlin**

Financial support for young EU scientists

1st EMS-SIAM Conference

"Applied Mathematics in our Changing World"

2 - 6 September 2001, Berlin

Complete information on the conference is available on the website

http://www.zib.de/amcw01/register.html

Requirements for

- young researchers (from EU and Associated States)

Letter of application stating the reasons for attending

the conference, i.e. with reference to study

and research fields

Short curriculum vitae

Letter/s of recommendation from Dean or department head

List of publications

Type and title of conference contribution, with an abstract

not exceeding 75 words

Applications will be reviewed by the Local Organizing

Committee. Funds may then be available from the

German Scientific Foundation, from the European Commission,

from the European Mathematical Society, EMS, and possibly

from UNESCO-ROSTE.

However, full financial support cannot be guaranteed.

You can send the above requirements to the Conference Office per FAX:

+49 (30) 841 85-107

Deadline for submissions:

June 30, 2001 for EU-Member states or EU associated states

------------------------------

From: Jochen Hittler <jochen.hittler@iwr.uni-heidelberg.de>

Date: Fri, 08 Jun 2001 08:47:38 +0200

**Subject: Workshop in Hohenwart on Chemical Engineering and Biotechnology**

Workshop on

Modelling and Computation in

Chemical Engineering and Biotechnology

http://www.wir-bawue.de

October 1-4 2001

Hohenwart Forum

GAMM Fachauschuu Scientific Computing, IWR and STZ Technical Simulation

Research Network WiR Baden-Wurttemberg, Universitat Heidelberg IWR and IfI

Introduction

Modelling and simulation in chemical engineering and biotechnology is

developing very rapidly and is gaining more and more importance for

under-standing the relevant phenoma and the design of processes in

science and industry. This workshop provides a forum to discuss recent

advances and innovations in the field. Leading international

experts will present new developments and concepts. The workshop will

bring together people from Chemical and Process Engineering, Chemistry,

Biology, Applied Mathematics and Computer Science and foster the

collaboration between university and industry.

Conference topics

computational fluid dynamics

simulation of reactive flows

reaction diffusion problems

computer aided process design and control

porous media flow

combustion

molecular design

protein folding

bioreactors

population dynamics

Organizers

P. Bastian, Heidelberg

E. Gilles, Magdeburg

W. Jager, Heidelberg

J. Lengeler, Osnabruck*

E. Wintermantel, Zurich *

G. Wittum, Heidelberg

* tentative

Invited Speakers

P. Deuflhard, Berlin

W. Marquardt, Aachen*

L. Petzold, Santa Barbara

D. Ramkrishna, Purdue

S. Schuster, Berlin

C. Schutte, Berlin

J. Smith, Heidelberg

R. Takors, Julich

W. Wiechert, Siegen

* tentative

------------------------------

From: Chen Zhi-ming <zmchen@lsec.cc.ac.cn>

Date: Wed, 6 Jun 2001 11:53:33 +0800 (CST)

**Subject: Faculty Position at Chinese Academy of Sciences**

"Hundred Talent Program" Position

Institute of Computational Mathematics

Academy of Mathematics and System Sciences

Chinese Academy of Sciences

Applications are invited for one full professor position in the field

of numerical analysis and/or scientific computing. This three-year

position is part of the special "Hundred Talent Program" of the Chinese

Academy of Sciences (CAS) aimed to attract outstanding Chinese

Scholars to work in CAS. A research grant of two million Chinese Yuan

plus housing benefits will be awarded. It is expected that the successful

applicant will lead a group in the Institute of Computational

Mathematics to work on important application-oriented problems which

scientifc computing plays a decisive role. Applicants are required to

have at least two-year research experience after having earned a

Ph.D. degree. The demonstration of excellence in researh is the most

important for a successful application. The deadline of application is

July 15, 2001.

Please contact

Prof. Yu Dehao

Vice-Director of the

Institute of Computational Mathmatics

Chinese Academy of Sciences

Tel: 86-10-62553888, Fax: 86-10-62542285

Email: ydh@lsec.cc.ac.cn

for further infomation. Related information can also found at:

http://www.caspe.ac.cn

http://www.amss.ac.cn

http://lsec.cc.ac.cn

------------------------------

From: Levent Gurel <lgurel@ee.bilkent.edu.tr>

Date: Sat, 9 Jun 2001 19:01:00 +0300

**Subject: Postdoctoral Position at Bilkent University, Ankara, Turkey**

Postdoctoral Position at Bilkent University, Ankara, Turkey

Research involves fast solution algorithms for computational

electromagnetics (CEM). In particular, fast intermediate-frequency

(resonance-region) solvers, such as the fast multipole method (FMM), and

high-frequency solvers employing asymptotic techniques will be considered.

Applications are sought immediately and will be accepted until the position

is filled, with no specific deadline.

Modern setting, friendly environment, satisfactory compensation package. For

more info, please see http://www.cem.bilkent.edu.tr. For applications and

further details, please contact Prof. Levent Gurel, Dept. of Electrical and

Electronics Engineering, Bilkent University, TR-06533, Ankara, Turkey,

Phone: +90-312-290 2096, Fax: +90-312-290 2439 (Private), e-mail:

lgurel@bilkent.edu.tr.

------------------------------

From: Claire Poulin <poulin@CERCA.UMontreal.CA>

Date: Mon, 04 Jun 2001 11:51:13 -0400

**Subject: Postdoctoral Position at CERCA**

POSTDOCTORAL FELLOWSHIP IN ERROR ESTIMATION

FOR COMPRESSIBLE FLOWS

CERCA seeks applicants for a postdoctoral fellowship starting in September

2001 in the area of error estimation and mesh adaptation for the numerical

solution of compressible flows. The ideal incumbent has strong experience

in the development and programming of finite-volume methods on unstructured

meshes, especially Jameson and Roe type schemes applied to the solution of

Euler and Navier-Stokes systems of equations.

A working knowledge of error estimation and/or mesh adaptation for these

equations is an important asset. C++ programming skills are

desirable.Proficiency of French, although not compulsory, will be a

selection criteria. The fellowship is offered for one year. Renewal for a

second year is conditional upon the availability of funding.

CERCA is a not-for-profit corporation established in 1991 with a mission to

support university research of interest to industry. CERCA brings together

professors, research professionals, postdoctoral fellows and students with

a common interest in the development of numerical methods aiming to resolve

a variety of science and engineering problems.

CERCA fulfils its mission by forging partner-client relationships between

university, government and industry research scientists and by providing

them with the means of helping one another to train highly qualified

personnel, to develop emerging technologies, to resolve technical problems

and to share the knowledge resulting from R&D performed worldwide.

Those interested should send their CV to :

Dorothee Bonnet

CERCA

5160, Decarie Blvd., Suite 400

Montreal, Quebec H3X 2H9

info@cerca.umontreal.ca

Applications will be accepted until July 31, 2001 and after until the=20

position is filled.

------------------------------

From: R.M.M. Mattheij <r.m.m.mattheij@tue.nl>

Date: Tue, 5 Jun 2001 08:19:32 +0200

**Subject: Postdoctoral Position at Technische Universiteit Eindhoven**

TMR project "Differential Equations in Industry and Commerce" (DEIC)

At the Scientific Computing Group a position is available for a postdoc, who

will work on problems coming from industry. There is a large variety of

interesting problems where can be worked on, ranging from materials, like

glass and polymers to plasmas. The common denominator is modelling,

mathematical analysis and computational methods. In particular those who are

keen on working on modelling are particular invited to apply.

The group consists of some 25 people (tenured staff, postdocs and PhD

students) and is co-operating with many engineering groups within the

university as well as industrial companies.

The present position is part of the European TMR project "Differential

Equations in Industry and Commerce" (DEIC). In this 6 centres are

co-operating on subjects from industrial mathematics. By EU regulation, only

inhabitants of the EU or EU associates may apply.

For further information you are invited to consult the web:

<http://www.win.tue.nl/scg>

If you are interested, please write a CV with your interests to

Prof. Dr. R.M.M. Mattheij

Dept of Mathematics

Technische Universiteit Eindhoven

P.O. Box 513

5600 MB Eindhoven

The Netherlands

or by e-mail to the address: r.m.m.mattheij@tue.nl

<mailto:r.m.m.mattheij@tue.nl>

------------------------------

From: Alexandre Ern <ern@cermics.enpc.fr>

Date: Tue, 05 Jun 2001 16:15:19 +0200

**Subject: Research Position at CEMAGREF**

Poste d'ingenieur de recherche au CEMAGREF

Le CEMAGREF recrute un ingenieur de recherche dans la specialite Analyse

numerique - Calcul scientifique. L'affectation se fera dans l'unite de

recherche "Ouvrages pour le drainage et l'etancheite" basee a Antony(92).

L'ingenieur de recherche devra formaliser en termes mathematiques les

problemes poses par les specialistes des processus (essentiellement

physiques) de l'unite de recherche et proposer des strategies numeriques

pour les resoudre. Les problemes physiques a traiter, transversaux aux

equipes de l'unite, concernent principalement les transferts d'eau et de

solutes dans les milieux poreux heterogenes complexes. Responsable de

l'activite "analyse numerique" de l'unite, il devra encadrer des

stagiaires participant a l'implementation informatique des modeles et,

en collaboration avec les scientifiques de l'unite, participer a

l'encadrement des travaux de these en modelisation. Il aura egalement

pour mission de developper un reseau de partenaires universitaires.

Le profil de poste est disponible a l'adresse suivante :

http://www.cemagref.fr/Informations/Actualites/MobiliteConcours/Concours

/concours%20externes/profilingenieurrecherche.htm

Tous les renseignements concernant le dossier d'inscription au concours

et l'organisation de ce dernier se trouvent a :

http://www.cemagref.fr/Informations/Actualites/MobiliteConcours/Concours/

concours%20externes/ingenieurrecherche.htm

Dates limites : retrait du dossier jusqu'au 14 Juin, dep=F4t des

candidatures jusqu'au 21 Juin.

------------------------------

From: Iain Duff <I.Duff@rl.ac.uk>

Date: Thu, 7 Jun 2001 09:19:24 +0100 (BST)

**Subject: Contents, IMA Journal of Numerical Analysis**

IMA JOURNAL OF NUMERICAL ANALYSIS

Contents of Volume 21, Number 3.

K. Miller and M. J. Baines

Least squares moving finite elements

pp 621-642

Z. Zhang, N. Yan and T. Sun

Superconvergent derivative recovery for the intermediate finite

element family of the second type.

pp 643-665

V. Styles

Error estimates for a finite-difference approximation of a mean

field model of superconducting vortices in one-dimension.

pp 667-701

R. Zvan, P. A. Forsyth, and K. R. Vetzal

A finite volume approach for contingent claims valuation.

pp 703-731

B. M. Garay and P. L. Simon

Numerical flow-box theorems under structural assumptions.

pp 733-749

L. Gr\"une

Persistence of attractors for one-step discretization of ordinary

differential equations.

pp 751-767

D. Potts and G. Steidl

A new linogram algorithm for computerized tomography.

pp 769-782

------------------------------

End of NA Digest

**************************

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