NA Digest Sunday, August 7, 1988 Volume 88 : Issue 31

Today's Editor: Cleve Moler

Today's Topics:


From: Eric Grosse <>
Date: Fri, 5 Aug 88 08:15:59 EDT
Subject: Precise Origin of Quote

Andrew Odlyzko is looking for the source of the following.
It may be from Gauss, father of scientific computing.
"The lack of mathematical insight shows itself through
nothing as clearly as through unbounded precision in
mathematical calculations."
Can anyone help?


Date: Wed, 3 Aug 88 01:31:34 PDT
Subject: Cubic Spline

Organisation: Institut Laue Langevin
Postal-address: BP156x 38042 GRENOBLE, France
Phone: (33)7648-7111 [switchboard]

DOES somebody know subroutine IFCS,
and how to obtain the FORTRAN source code


From: Paul Schauble <portal!>
Date: 4 Aug 88 11:33:10 GMT
Subject: Exp Function Needed

I'm looking for an exponential function (e**X), good to 15 digits, that takes
the time/space trade as far toward time as possible. I need it fast, and
dont't really care how big it is. Is there anything available I could have??


From: Horst D. Simon <>
Date: Tue, 2 Aug 88 00:17:29 PDT
Subject: Scientific Applications of the Connection Machine

Scientific Applications of the Connection Machine
Second Announcement and Preliminary Program

NASA Ames Research Center, Moffett Field, CA 94035
September 12-14, 1988

Organized by
Numerical Aerodynamics Systems Division,
NASA Ames Research Center

With Support from
Thinking Machines Corporation


Bruce Blaylock -- NASA Ames Research Center
Paul Frederickson -- RIACS
Creon Levit -- NASA Ames Research Center
Jill Mesirov -- Thinking Machines Corporation
Oliver McBryan -- University of Colorado, Boulder
Horst Simon -- NASA Ames Research Center


Carol Bee-Latty -- Thinking Machines Corporation
Lyz Dunham -- NASA Ames Research Center
Judy McWilliams -- NASA Ames Research Center



NASA's Numerical Aerodynamic Simulation (NAS) Program, located at NASA
Ames Research Center near Mountain View, California, will be sponsoring
a conference on Scientific Applications of the Connection Machine from
September 12 to September 14, 1988. Focus of this conference will be the
application of the Connection Machine to the solution of large scale
computational problems in physics, in particular computational fluid
dynamics, chemistry, and engineering.


Monday, September 12


Data Parallel computing methods compute thousands of
answers at once. We have all been taught since elementary
school to compute in ways that keep only one answer active
at a time. The difference between the two styles of
computing, and example applications that fit well with
each, are reviewed.


The Connection Machine system is a data parallel
computing system with 65,536 processors, a high-speed
communications router, floating-point hardware, the
DataVault mass storage system, high resolution display,
front-end, and base systems software. The role and
characteristics of each of these subsystems is introduced.

10:15-10:30 BREAK


There are several fundamentals of good data parallel
programming practice that are independent of the
programming language used. These overall fundamentals
are introduced.


Fortran 8x is the first industry standard data parallel
programming language. The array extensions provide a
direct way to compute on parallel data structures. The
data parallel extensions of Fortran 8x are reviewed.
Familiarity with Fortran 77 is assumed.

11:30-12:15 DATA PARALLEL LANGUAGES: C* Guy Steele

The pointer structure of C makes it an ideal base for
data parallel programming. C* extends the language, in a
manner consistent with C++, to include parallel data
structures. The C* language is reviewed. Familiarity
with C is assumed.

12:15- 1:15 LUNCH


A variety of data movement and reduction primitives
underlie efficient data parallel programs. These
underlying operations are reviewed. The role of the
CM-2 Sequencer in optimizing the performance of these
primitives is introduced.


Solvers and lattice-based algorithms (such as finite
differences) are pervasive in scientific computing.
Examples of these routines on the CM-2 are reviewed.

3:15- 3:30 BREAK


The acoustic wave equation is a simple example of a
scientific simulation that operates on a lattice. A simple
two-dimensional finite difference solution, coded in
Fortran 8x, is introduced. Modifications to implement
fourth dimension in space, and to implement a
three-dimensional model are introduced.


A graphics environment for real time visualization of
the results of numerical simulations of Computational
Fluid Mechanics will be discussed. Within this
environment the researcher may interactively perform
real time flow visualization experiments. Ideas for
the future will be introduced. Session will include
demonstrations on the CM-2 by Jamie Sethian.

(hosted by Thinking Machines Corporation)

Tuesday, September 13

8:30 - 8:35 Welcome
8:35 - 9:30 Interactive Scientific Visualization and Parallel
Display Techniques
James A. Sethian -- University of California, Berkeley
9:30 -10:30 Techniques for the Interactive Visualization of Vector
and Scalar Fields Defined on Finite Difference Grids
Creon Levit -- NASA Ames Research Center
10:30 -11:00 Break
11:00 -12:00 Contributed Papers
12:00 - 1:30 Lunch
1:30 - 2:30 Sparse Distributed Memories
David Rogers - RIACS
2:30 - 3:30 Application of the Connection Machine to a Rendering
Gary Demos -- IBM
3:30 - 4:00 Break
4:00 - 5:00 Contributed Papers
6:00 - 7:00 No Host Cocktails
7:00 - 9:00 Dinner (speaker TBA)

Wednesday, September 14

8:30 - 9:30 Scientific Applications of the CM-2 at United Technologies
Research Center
T.Alan Egolf -- United Technologies Research Center
9:30 -10:30 Connection Machine: Performance on Model Problems and
Oliver McBryan -- University of Colorado, Boulder
10:30 -11:00 Break
11:00 -12:00 Contributed Papers


Development of an Euler Code on the Connection Machine
Ramesh K. Agarwal (McDonnell Douglas Research Laboratories) and
John Richardson (Thinking Machines Corporation)

Data Parallel Approach to Job Shop Scheduling
David Andrews (General Electric Research Laboratories) and Eric Barszcz (NASA
Ames Research Center)

Computational Electromagnetics on the Connection Machine
V.P. Cable (Lockheed Aeronautical Systems Company)

Large Scale Nonlinear Dynamic Finite Element Simulations on the Connection
Charbel Farhat (University of Colorado, Boulder)

Totally Parallel Multilevel Algorithms
Paul Frederickson (RIACS, NASA Ames Research Center)

FFT Algorithm Design and Tradeoffs on the CM2
Raymond Kamin and George B. Adams (RIACS and Purdue University)

A 3-D Navier-Stokes Method for the Connection Machine
Lyle N. Long (Lockheed Aeronautical Systems Company)

Benchmarking and Performance Analysis of the CM2
David Myers and George B. Adams III (RIACS and Purdue University)

Spectral Solution of the INcompressible Navier-Stokes Equations on the
Connection Machine 2
Sherryl Tamboulian, Craig Streett, and Michele Macaraeg (ICASE, NASA Langley)

The Preconditioned Conjugate Gradient Method on the CM
Charles Tong (University of California, Los Angeles)

Negotiations are in progress to publish proceedings of the meeting as a
special issue of refereed journal. Speakers will be asked
to submit a copy of their paper by October 1, 1988.



All technical sessions will be held at the NASA Ames Research Center,
Moffett Field, CA 94035.


40 minutes from San Francisco International Airport
20 minutes from San Jose International Airport
Direct or connecting flights to every major city in the
United States.


Bay Area temperatures in the fall range from warm days (75 degrees F)
to cool nights (47 degrees F), with the average daytime temperature
about 62 degrees F.


The following Hotels are conveniently located within NASA Ames Research
Center area. Arrangements should be made directly with the Hotel of
your choice.

The County Inn (415) 961-1131
850 Leong Drive, Mountain View, CA
Rates*: Government - $57.00 Corporate - $65.00/$67.00

Sundowner Inn (408) 734-9900
504 Ross Drive, Sunnyvale, CA 94089
Rates*: Government - $57.00 Corporate - $72.00

Comfort Inn 800-228-5150
1561 El Camino Real West, Mountain View, CA 94040
Rates*: Government/Corporate - $55.00

Best Western Sunnyvale Inn 800-528-1234
940 Weddell Drive, Sunnyvale, CA 94089
Rates*: Government - $54.00 Corporate - $51.00 Regular - $56.00

* All rates based on room availability

The regular registration fee is $75. This fee includes the tutorial and
conference, lunch on Tuesday and Wednesday, a dinner on Tuesday
evening, and refreshments during the breaks.



Please use this form or a facsimile to pre-register. Advance
registration closes August 15, 1988. Early registration is encouraged,
since available space is limited. Participants will be registered on
a first come basis. Late registration is based on a space available
basis and subject to a $25 late fee.

Please mail your completed form with check or international money order
(US funds) payable to "Connection Machine Conference" to:

Connection Machine Conference
NASA Ames Research Center
c/o Ms. Lyz Dunham
Mail Stop 258-6
Moffett Field, CA 94035

Requests for refunds will be honored until September 1, 1988.

For further information, please call (415) 694-4370, or send
electronic mail to:


Registration Form

Scientific Applications of the Connection Machine

Name (last name first) ________________________________

Affiliation ___________________________________________

Address _______________________________________________


City _______________________ State ____________________

Zip/Postal Code ____________ Country __________________

Phone number __________________________________________

Electronic mail address (if applicable) _______________

I will attend _____ conference and tutorial

_____ tutorial only

_____ conference only

Total enclosed:

$ ______ U.S.


From: David Kincaid <>
Date: Thu, 4 Aug 88 09:30:52 CDT
Subject: Conference on Iterative Methods for Large Linear Systems

October 19-21, 1988
Center for Numerical Analysis
The University of Texas at Austin

Co-sponsored by
Society for Industrial and Applied Mathematics
Special Interest Groups for Linear Algebra and Supercomputing

Celebrating the Sixty-fifth Birthday of
David M. Young, Jr.

******IMPORTANT NOTE *****
Early registration deadline is September 1, 1988.
Also, hotel space is limited so make your reservations soon!
All conference events (meetings and social)
will be held at the Austin Marriot at the Capitol,
701 E. 11th St., Austin, Texas 78701.
The hotel is located in downtown Austin at the corner of 11th Street
and Interstate 35.

Tuesday (October 18, 1988)

5:30p-7:00p Pre-Conference Social (Cash Bar)
5:30p-7:00p Pre-Conference Registration

Wednesday (October 19, 1988)

8:00a Registration
8:20a-8:30a Opening Remarks
8:30a-9:20a G. Birkhoff*{speaker} (Harvard University)
R. Lynch (Purdue University)
``ELLPACK and ITPACK as Research Tools for Solving Elliptic
9:20a-9:50a R. Lynch (Purdue University)
``A New HODIE-G Module for Treating Boundary Conditions in
9:50a-10:20a Coffee Break
10:20a-11:00a D. Young* (University of Texas at Austin)
T. Mai (University of Alabama)
``The Search for Omega''
11:00a-11:40a O. Axelsson (University of Nijmegen, The Netherlands)
``Some Optimal Order Preconditioning Methods for
Diffusion Problems Based on Algebraic Decompositions''
11:40a-12:00n J. Whiteman (Brunel University, U.K.)\cr
``Finite Element Treatment of Singularities in Elliptic
Boundary Value Problems''
12:00n-1:30p Luncheon
1:30p-2:10p M. Wheeler (University of Houston)
``Domain Decomposition --- Multigrid Algorithms for Mixed
Finite Element Methods for Elliptic PDE's''
2:10p-2:50p O. Widlund (New York University)
``Domain Decomposition Algorithms for Elliptic Problems''
2:50p-3:10p R. Wyatt (University of Texas at Austin)
``Iterative Methods in Molecular Collision Theory''
3:10p-3:20p Stretch Break
3:20p-3:40p Coffee Break
3:40p-4:00p D. Rose (Duke University)
[to be announced]
4:00p-4:20p D. Evans* C. Li (Loughborough University of
Technology, U.K.)
``D{1/2}-Norms of the SOR and Related Method for a
Class of Nonsymmetric Matrices''
4:20p-4:40p M. Dryja (University of Warsaw, Poland) W.
Proskurowski* (University of Southern California)
``Composition Method for Solving Elliptic Problems''
4:40p-5:00p S. Lee, G. Dulikravich*
D. Dorney (Pennsylvania State University)
``Distributed Minimal Residual (DMR) Method for
Explicit Algorithms Applied to Nonlinear Systems''
5:15p-6:45p Reception (Light Hors D'oeuvres)
8:00p-10:00p Tennis Doubles-Mixer

Thursday (October 20, 1988)

8:20a-8:30a Second Day Remarks
8:30a-9:10a D. Harrar \& J. Ortega* (University of Virginia)
``Solution of Three-Dimensional Generalized Poisson
Equations on Vector Computers''
9:10a-9:50a P. Saylor (University of Illinois)
``Iterative Methods for Complex Linear Algebraic Equations''
9:50a-10:20a Coffee Break
10:20a-11:00a R. Varga (Kent State University)
``Remarks on k-Step Iterative Methods''
11:00a-11:40a L. Ehrlich (John Hopkins University)
``A Local Relaxation Scheme (Ad-Hoc SOR) Applied to
Nine Point and Block Difference Equations''
11:40a-12:00n P. Concus (Lawrence Berkeley Laboratory)
[to be announced]
12:00n-1:30p Luncheon
1:30p-2:10p H. Elman (University of Maryland)
``Uses of Reordering, Partial Elimination and Fourier
Methods for Sparse Iterative Solvers''
2:10p-2:50p L. Adams (University of Washington)
``Fourier Analysis of Two-Level Hierarchical Basis
2:50p-3:10p J. Kuo & T. Chan* (University of California, Los Angeles)
``Two-color Fourier Analysis of Iterative
Methods for Elliptic Problems with Red-Black Ordering''
3:10p-3:20p Stretch Break
3:20p-3:40p Coffee Break
3:40p-4:00p C. Jea* (Fu Jen University, Taiwan) &
D. Young (University of Texas at Austin)
``On The Effectiveness of Adaptive Chebyshev Acceleration
for Solving Systems of Linear Equations''
4:00p-4:20p A. Greenbaum (New York University)
``Predicting the Behavior of Finite
Precision Lanczos and Conjugate Gradient Computations''
4:20p-4:40p T. Mai* (University of Alabama) &
D. Young (University of Texas at Austin)
``On the Adaptive Determination of Iteration Parameters''
4:40p-5:00p K. Hwang* & J. Chen (Nanjing Normal University, P.R. China)
``A New Class of Methods for Solving Nonsymmetric
Systems of Linear Equations --- Constructing and Realizing
Symmetrizable Iterative Methods''
5:15p-6:45p Conference Social (Cash Bar)
7:00p Banquet

Friday (October 21, 1988)

8:20a-8:30a Final Day Remarks
8:30a-9:10a G. Golub* (Stanford University) &
J. de Pillis (University of California, Riverside)
``Toward an Effective Two-parameter SOR Method''
9:10a-9:50a E. Wachspress (University of Tennessee)
``The ADI Minimax Problem for Complex Spectra''
9:50a-10:20a Coffee Break
10:20a-11:00a T. Manteuffel* (University of Colorado at Denver & Los Alamos
National Laboratories)
W. Joubert (University of Texas at Austin)
``Iterative Methods for Nonsymmetric Linear Systems''
11:00a-11:40a L. Hageman (Westinghouse --- Bettis Laboratory)
``Relaxation Parameters for the IQE Iterative
Procedure for Solving Semi-Implicit Navier-Stokes
Difference Equations''
11:40a-12:00n C. Douglas, J. Mandel & W. Miranker* (IBM Research, Yorktown
``Fast Hybrid Solution of Algebraic Systems''
12:00n-1:30p Lunch (On-your-own)
1:30p-2:10p D. Marinescu & J. Rice* (Purdue University)
``Multilevel Asynchronous Iterations for PDE's''
2:10p-2:30p A. Lin (Temple University)
``Asynchronous Parallel Iterative Methods''
2:30p-2:50p T. Oppe (University of Texas at Austin & Sandia National
``Experiments with a Parallel Iterative Package''
2:50p-3:10 I. Navon* & H. Lu (Florida State University)
``A Benchmark Comparison of the ITPACK Package on ETA-10
and Cyber-205 Supercomputers''
3:10p-3:20p Stretch Break
3:20p-3:40p Coffee Break
3:40p-4:00p J. Dancis (University of Maryland)
``Diagonalizing the Adaptive SOR Iteration Method''
4:00p-4:20p [to be announced]
4:20p-4:40p A. Haegemans & J. Verbeke* (Katholieke Universiteit
Leuven, Belgium)
``The Symmetric Generalized Accelerated Overrelaxation
(GSAOR) Method''
4:40p-5:00p David R. Kincaid (University of Texas at Austin)
``A Status Report on the ITPACK Project''
Conference Adjourns

This conference will be dedicated to providing an overview of the state of
the art in the use of iterative methods for solving sparse linear systems
with an eye to contributions of the past, present, and future.
The emphasis will be placed upon identifying current and future
research directions in the mainstream of modern scientific computing.
Recently, the use of iterative methods for solving linear systems
has experienced a resurgence of activity as scientists attack extremely
complicated three dimensional problems using vector and parallel
supercomputers. Many research advances in the development of iterative
methods for high-speed computers over the past forty years will be reviewed
as well as focusing on current research.

The conference is organized by D. Kincaid, L. Hayes, G. Carey and W. Cheney,
who are members of the host organization --- the Center for Numerical Analysis
(CNA) of The University of Texas at Austin. This meeting is being
co-sponsored by the Special Interest Groups for Linear Algebra and
Supercomputing of the Society for Industrial and Applied Mathematics.
Support for this conference is provided, in part, by the Office of Naval
Research, the Department of Energy, the National Science Foundation,
the Air Force Office of Scientific Research, and The University of Texas
at Austin.

To make reservations call the Austin Marriott at the Capitol,
[(512) 478-1111 or (800) 228-9290] or mail the enclosed card for rooms at
the special conference rate of $55 for single or double rooms.
All reservations are handled on a first-come-first-served basis.
Reservations must be received by October 4, 1988.
Reservations made after this date are subject to guest room availability.

Many major airlines fly into Austin via Dallas or Houston with some
direct flights from other locations. The primary air-carriers serving Austin
are American, American-West, Continental, Delta, Northwest, Pan Am,
Southwest, TWA, United, and USAir. Since airlines give discount rates for
those staying over a Saturday night, plan to stay and enjoy the weekend
in Austin! An information desk operated by the City of Austin is located
in the airport and is a good source for free material on events and
sights of interest in and around Austin. (Just ask for a packet of

A hotel courtesy-van is available for transportation between the
airport and the hotel (a short 15 minute trip).
[Regular hours of operation are on the hour and half-hour from
6:00a-12:00n and by request 12:00n-12:00m with frequent trips
Tuesday evening before the conference and Friday evening after
the conference.] The hotel also operates a free shuttle bus to
The University of Texas at Austin which is ten blocks north.
The City operates the ``catch a'dillo bus'' (short for armadillo)
for transportation around the downtown area.

On Wednesday evening, a tennis doubles-mixer will be arranged.
So bring your tennis gear!

Austin is the capitol of Texas with several points of interest
including the State Capitol Building, Governor's Mansion, Lyndon B.
Johnson Presidential Library and Museum, Zilker Park and Barton
Springs (spring-fed natural swimming pool always 68 degrees, and many
more. Near to Austin are several scenic lakes, such as Lake Travis,
and the ``Texas hill country.'' Austin is in the center of Texas with
historic San Antonio and the Alamo only 70 miles south,
Dallas/Ft. Worth 200 miles north, and Houston 200 miles Southeast.
The weather is usually quite pleasant in Austin in October
but is known to change rapidly (October averages: 80 degrees high, 55 degrees
low). Many restaurants and night-spots are located on
``6th Street'' five blocks south of the hotel. South of 1st Street
is ``Town Lake'' with the popular ``hike-`n-bike'' trail for jogging,
speed-walking, or an enjoyable stroll. Austin also offers a host of other
activities that participants can individually arrange. Some information
will be available at the conference table.

There are several activities on The University of Texas at
Austin campus on the Monday and Tuesday precedings this conference.
The following events may be of interest:
(1) a ``Workshop on Parallel and Vector Computing'' hosted by
the Texas Institute of Computational Mechanics
[contact: Dr. Graham Carey, WRW 305G, TICOM, UT Austin, Austin, TX
78712 or call Pat Bozman (512) 471-4676]
(2) the fifth annual ``Computing Science Research Review'' hosted by
the Department of Computer Sciences [contact: Joanne Click
(512) 471-9729,]
(3) the ``Robert Todd Gregory Memorial Lecture'' by
Professor Garrett Birkhoff on late Tuesday afternoon in the Department
of Mathematics.

The long papers from the conference will be published by Academic
Press in book form and will appear in 1989.
Pre-publication orders can be placed during the conference.
In addition, authors of short papers are being encouraged to submit
their papers to the one or two selected journals for possible publication
as special issues.

Conference advanced registration fee is $95
(SIAG/LA or SIAG/SC members $85), if received by September 1, 1988.
If paid after this date or at the conference, the registration fee is $125.
This fee includes morning and afternoon coffee breaks,
two luncheons, a reception, and a banquet honoring Professor Young.
The student registration fee is $18, which allows admission to the technical
sessions and coffee breaks only. The evening social activities of the
conference are available to companions of conference participants at the
following rates: $10.75 reception (Wednesday night), $27.50 banquet
(Thursday night), no charge for conference socials (cash bar).
To register, detach and mail the registration form below. For additional
information, contact the CNA at the address below or at Tel: (512) 471-1242;
Arpanet:; Bitnet: sheri@uta3081.

(detach and mail)






Number of guest banquet tickets ($27.50 per person):

Amount Enclosed:
(Make checks payable to The University of Texas at Austin.)

[]Yes, I plan to attend. Enclosed please find my registration fee of $

[]Yes, please sign me up to play in the tennis doubles-mixer.

Mrs. Katy Burrell
Conference Secretary
Center for Numerical Analysis
RLM Bldg 13.150
University of Texas at Austin
Austin, Texas 78713-8510


Date: Fri, 05 Aug 88 12:50:45 EMT
Subject: Bergen Scientific Centre Petroleum Competence Group


The mission of the Bergen Scientific Centre has been expanded to
include a Petroleum Competence Group (PCG) which will be the
European Focal Point for the Technical Computing activities
characteristic of the petroleum industry.

The group concentrates on developing total solutions for seismic
processing and reservoir modelling, and will provide market
support in these areas.

The PCG will participate in joint projects with leading European
based companies involved in petroleum exploration and production.

The PCG will be primarily located in Stavanger and managed by
Knut Korsell. The staff for the group will be located in
Stavanger and in Bergen. The full resources of the Bergen
Scientific Centre will be available to the group. In particular,
the Centre's IBM 3090 computing power will be available and there
will be close interaction and support from the technical
computing expertise already available in BSC.

For further information please contact:

The Centre Manager: Patrick Gaffney (NA.GAFFNEY AT SCORE.STANFORD.EDU
or PAT at BSCVM)


From: John Lewis <jglewis%priapus@BOEING.COM>
Date: Fri, 5 Aug 88 16:16:15 PDT
Subject: SIAM Conference on Sparse Matrices

SIAM Conference on Sparse Matrices

Sponsored by the SIAM Activity Group on Linear Algebra

Salishan Resort
Gleneden Beach, Oregon

May 22-24, 1989

OBJECTIVE: The quickening pace of increasing computer power and
decreasing cost has made feasible the solution of new, larger, and
more complex problems. Their solution requires new or improved
algorithms, while the architectural constraints imposed by the need
for high performance pose new difficulties in implementation. The
research and applications community have responded to these needs with
a number of advances in the solution of sparse problems.

This conference will provide a forum for the presentation of the most
significant achievements in meeting these new challenges. Theoretical
algorithms, new applications and implementations for vector and
parallel architectures will be presented. We expect to have
contributions in all of the traditional areas of sparse linear
algebra, linear equations, eigenvalue problems, and least squares
problems, as well as recent developments in such areas as sparse
control problems and sparse optimization. The conference is organized
to promote interchange of new ideas between the developers, the users
and the implementors of sparse matrix algorithms. We encourage the
participation of users of sparse matrix algorithms in structural
engineering, computational fluid dynamics, computational chemistry and
other fields, as well as the participation of algorithm developers.

FORMAT: The conference will be limited by the availability of hotel
rooms to approximately 150 participants. There will be no invited
speakers. Instead, 18 of the contributors will be chosen to give 45
minute presentations in non-parallel sessions over the three days of
the conference. In addition, there will be opportunity in 12 informal
workshops, scheduled in four periods, for the other contributors to
present their accomplishments and to discuss with their colleagues the
needs and directions for future work. All accepted abstracts, whether
for formal or informal presentation, will be distributed in the
conference program.

DEADLINE FOR PAPERS: In keeping with the goal of presenting the most
current advances, the deadline for submissions is not until Feb. 1,
1989. In selecting speakers, the committee will evaluate most
positively novel and unpublished work. Promising work in progress is
appropriate for submission.

LOCATION: The Salishan Resort is a first-class resort in an
attractive and secluded location on the beautiful Oregon Coast.
Contrary to usual anti-tourism propaganda, the weather at Salishan in
May is usually warm, sunny and dry. The resort provides easy walking
access to the beach, and has a wide range of exercise facilities. Its
location is ideal for exploring the Oregon Coast for those who may
want to arrive earlier or stay after the meeting. Transportation from
the Portland International Airport (approximately 90 miles) will be
available at specified times.

PROCEEDINGS: The SIAM Journal on Matrix Analysis will publish a
partial proceedings in a specially designated issue(s), consisting of
refereed contributions solicited from presentations at this


Potential contributors should submit an extended abstract of no more
than two pages (approximately 800 words). Abstracts should be
submitted to:

John G. Lewis
Mail Stop 7L-21
Boeing Computer Services
P.O. Box 24346
Seattle WA 98124

email: or

We prefer to receive abstracts by electronic mail, where we will be
prepared to process plain ascii, plain TEX, LATEX or TROFF files.

materials will be sent automatically on receipt of abstracts.
However, participants who do not intend to give presentations and
participants who wish to ensure a reservation for one of the limited
hotel rooms are invited to register prior to the abstract deadline.
Registration materials can be obtained by completing the coupon
attached to this announcement and mailing it to:

Mr. Richard Porth
Conference Director
117 South 17th Street, 14th Floor
Philadelphia, PA 19103, USA

Alternatively, you may send an electronic mail message including all
the information requested on the coupon, and the header (message for
Richard Porth, SIAM Conference on Sparse Matrices), to: or

John Lewis, Boeing
Horst Simon, Boeing and NASA Ames
Loyce Adams, Washington
David Scott, Intel

Iain Duff, AERE Harwell
Stan Eisenstat, Yale
Alan George, Waterloo
Gene Golub, Stanford
Beresford Parlett, Berkeley
Ahmed Sameh, Illinois
Bob Ward, Oak Ridge

SIAM Conference on Sparse Matrices

Please send me registration materials for the SIAM Conference on
Sparse Matrices.

Name __________________________________________________

Affilation ____________________________________________

Department ____________________________________________

Address _______________________________________________

City ______________________________ State ____________

Postal Code _________________ Country ________________

Phone _______________________

I (plan / do not plan) to submit an abstract.

Return the completed coupon to:

Mr. Richard Porth
Conference Director
117 South 17th Street, 14th Floor
Philadelphia, PA 19103, USA


End of NA Digest