**Today's Topics:**

- Cornell Workshop in Matrix-Based Signal Processing
- Argonne Parallel Programming Class
- Almost Incompressible Computational Fluid Dynamics
- Re: Rational Approximation of Floating Point Numbers

From: Frank Luk <luk@tesla.ee.cornell.edu>

Date: Tue, 21 Jun 88 10:23:51 EDT

Mathematical Sciences Institute

Workshop on

Matrix-Based Signal Processing Algorithms and Architectures

Cornell University, Ithaca

June 27-29, 1988.

Program

Monday, June 27

9:00 - 9:40 H.T. Kung, Carnegie Mellon University - "Mapping

Applications onto Parallel Computers Can be Easy"

10:00 - 10:40 J. McWhirter, Royal Signals and Radar Establishment -

"An Efficient Array for Computing the MVDR"

11:00 - 11:40 C.M. Rader, M.I.T. Lincoln Laboratory - "Wafer-Scale

Systolic Array for Adaptive Antenna Processing"

1:30 - 2:10 J. Proakis, Northeastern University - "Numerical

Properties and Computational Requirements for Several Adaptive Filtering

Algorithms"

2:30 - 3:10 M. Kowalski, University of Utah - "On Approximation of

Band-Limited Signals"

3:30 - 4:10 S. Burrus, Rice University - "Block Signal Processing

Using Matrix Implementation of Digital Filters"

4:10 - 6:00 RECEPTION

Tuesday, June 28

9:00 - 9:40 G.W. Stewart, University of Maryland - "Implementation of

Systolic Algorithms on MIMD Machines"

10:00 - 10:40 M. Lam, Carnegie Mellon University - "Programmable

Systolic Arrays"

11:00 - 11:40 J. Rice, Purdue University - "Advanced Parallel Systems"

1:30 - 2:10 D. Tufts, University of Rhode Island - "High Resolution

Adaptive Signal Processing"

2:30 - 3:10 P. Eberlein, SUNY at Buffalo - "Some Experiences with

Jacobi-type Procedures on Parallel Architectures"

3:30 - 4:10 R. Schreiber, SAXPY Corp. - "Convergence of Block Jacobi

Methods"

4:10 - 6:00 RECEPTION

Wednesday, June 29

9:00 - 9:40 S. Haykin, McMaster University - "Adaptive Filter Theory"

10:00 - 10:40 M. Kaveh, University of Minnesota - "The Coherent

Signal-Subspace Method and Time-Domain Realization of its Preprocessors"

11:00 - 11:40 H. Whitehouse, Naval Ocean Systems Center - "Signal

Processing Computational Needs: An Update"

11:40 - 1:30 RECEPTION

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

From: David Levine <levine%antares@anl-mcs.arpa>

Date: Tue, 21 Jun 88 11:31:44 PDT

Argonne National Laboratory has set up an Advanced Computing Research

Facility (ACRF) for the study of parallel computing. Machines currently

in the ACRF are:

8-processor Alliant FX/8

16-processor Intel iPSC-VX hypercube

20-processor Encore Multimax

24-processor Sequent Balance 21000

32-processor Intel iPSC hypercube

1024-processor Active Memory Technology DAP

16384-processor Thinking Machines CM-2

Projects at Argonne utilizing the ACRF include investigations in parallel

logic programming and parallel linear algebra, the development of portable

parallel programming methodologies, and studying the potential of parallel

processing for large-scale scientific computing.

To encourage the use of the ACRF as an international facility, Argonne

is sponsoring classes to familiarize potential users with the ACRF

multiprocessors and parallel programming in general. The next class

will be held July 27-29, 1988

Topics to be covered include parallelizing compilers, the Monitor

and Schedule packages for portable parallel programming, hypercube

programming, programming the DAP, and programming the Connection Machine.

A portion of the third day will be devoted to consideration of each

attendee's particular project. Fortran will be emphasized as the

primary programming language. This will be a hands-on class; at its

completion participants will have written and run programs on each

machine, and should be familiar with the ACRF environment.

Those interested in the classes should contact

Teri Huml

Mathematics and Computer Science Division

Argonne National Laboratory

Argonne, IL 60439-4844

(312) 972-7163

huml@anl-mcs.arpa

There will be a $25.00 charge for this class, no financial support for

attendees is available.

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

From: Hans Stoor <mcvax!enea!kuling!bmc1!tdb!stoor@uunet.uu.net>

Date: 8 Jun 88 13:16:12 GMT

Is there anyone interested in numerical methods for almost incompressible

fluid flow. I'm studying finite difference methods for Navier-Stokes

equations and very low Mach numbers. Actual problems right now is

conditions for open boundaries (two dimensional), and I'm also looking

for reference solutions to the model problems, straight channel, driven

cavity and backward-facing-step. The Reynolds number is quite moderate.

-- Hans Stoor, TDB, Uppsala

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

From: Craig NoLastName <ihnp4!ihlpl!kat3@ucbvax.Berkeley.EDU>

Date: 22 Jun 88 13:21:37 GMT

>Does anyone know of numerical algorithms which, when given a number

>x in [0,1), return the rational number (numerator/denominator)

>that approximates x to within machine tolerance?

>

> Dimpy Pathria.

>

See Jerome Spanier and Keith B. Oldham, "An Atlas of Functions,"

Springer-Verlag, 1987, pp. 665-7.

I have a C program implementing their algorithm. If anybody wants

a copy, let me know.

--Craig

AT&T Bell Laboratories - Naperville, Illinois