Subject: NA Digest, V. 94, # 4 NA Digest Monday, January 24, 1994 Volume 94 : Issue 4 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Mode Matching Code Low Rank Up/Down Dates Query about Fortran 90 to C Translation SPEC Benchmarks Software for Partitioning Graphs A Matrix Eigenvalue Problem BLAS for the PowerPC New Book on Computational Mathematics New Book on Numerical Toolbox for Verified Computing SVD and Signal Processing Workshop in Belgium Algorithms and Parallel VLSI Workshop in Belgium Computational Fluid Dynamics Lectures in Belgium IMACS Turbulence Workshop NAG Users Association Conference 1994 NASA Workshop on Parallel Numerical Algorithms High-Precision Unconstrained Minimization Conference on Bond Graph Modeling and Simulation Workshop on Parallel Scientific Computing in Denmark Symposium on Parallel Computing in the Netherlands Position at University of Southwestern Louisiana Position at Royal Military College of Science Submissions for NA Digest: Mail to na.digest@na-net.ornl.gov. Information about NA-NET: Mail to na.help@na-net.ornl.gov. ------------------------------------------------------- From: Bengt Littmann Date: Wed, 19 Jan 1994 10:38:23 +0100 Subject: Mode Matching Code I have written a mode matching code that computes the scattering matrices (S11, S12, S21, S22) of a _rectangular_ _waveguide_ _cross-section_ _jump_. No assumptions as to symmetry have been made, provided that the cross-section of the smaller guide lies within the boundaries of the bigger one. The program is written in f77 and assumes that one has the LAPACK compiled as library, as well as the BLAS (preferrably machine-BLAS). I have used the cpp (C preprocessor) to make automatic conversion of declarations, generic functions and LAPACK/BLAS-names to double precision. e.g. CGETRS -> ZGETRS. It has been fairly well tested so far; we've calculated filters and accelerator sections with it. Anyone interrested send a mail to the address below and I'll be happy to send the code. BTW, it comes as UNIX shell archive (shar). Cheers, Bengt (email: littmann@tetibm3.ee.TU-Berlin.DE) ------------------------------ From: Cheryl Carey Date: Wed, 19 Jan 94 16:25:23 PST Subject: Low Rank Up/Down Dates Does anyone know of any applications which involve multiple low rank up/down dates to a nonsymmetric system of equations?. Many thanks in advance Cheryl Carey cmmc@ama.caltech.edu Applied Math. 217-50, Caltech, Pasadena, CA 91125. ------------------------------ From: Matthias Mann Date: Thu, 20 Jan 94 14:06:55 +0000 (MEZ) Subject: Query about Fortran 90 to C Translation Dear Members of Na-net, I would like to know if there is a Fortran -> C Translator, which is suitable for use with Fortran90. I know that also the F90 compilers can do this. The reason why I would like to know this is because we are using Linux for the program development. Up to now netlibs f2c worked very well, (as a preprocessor for the Gnu C Compiler) but it does not support F90. Unfortunately we do not have a F90 compiler running under Linux, but we would like to write programs in F90. Any hints and suggestions are very welcome. Dr. Matthias Mann University of Osnabrueck Physics Department D-49069 Osnabrueck Germany Phone : +49-541-969-2684 Fax : +49-541-969-2670 Internet: MATTHIAS@TITAN.RZ.UNI-OSNABRUECK.DE ------------------------------ From: Sue J. Worden Date: Thu, 20 Jan 1994 08:59:47 -0600 Subject: SPEC Benchmarks Hello, I would appreciate pointers to materials that describe the SPEC benchmarks, available to me via anonymous ftp, gopher, or www. Something along the lines of Jack Dongarra's nice document on the LINPACK benchmarks would be most helpful. Thanks, Sue Worden Mathematical Services Computation Center, Mail Code 12700 University of Texas at Austin Austin, Texas USA 78712-1110 voice: (512) 471-3359 fax: (512) 471-1582 email: sjw@bongo.cc.utexas.edu ------------------------------ From: Robert W. Leland Date: Thu, 20 Jan 94 11:34:08 MST Subject: Software for Partitioning Graphs NEW SOFTWARE FOR PARTITIONING GRAPHS Many problems which arise in the course of scientific computing can be conveniently described in terms of graph partitioning. A prominent example is the problem of decomposing a large, unstructured grid across the processors of a parallel computer. Other applications include generating nested dissection orderings for sparse matrix factorizations and devising efficient circuit layouts. We have developed a software package called "Chaco" which implements a variety of graph partitioning algorithms. These include the spectral bisection, quadrisection and octasection algorithms, the inertial method, the Kernighan-Lin method, and a multilevel partitioner. Techniques can mixed and matched as well, for example Kernighan-Lin can be applied to refine a spectral partitioning. A user's guide and papers describing the algorithms are available by anonymous ftp to cs.sandia.gov in the directory pub/tech_reports/bahendr. The software can be obtained at no charge under a research license agreement and may also be licensed for commercial application. Interested parties should contact one of the authors at the addresses given below. Bruce Hendrickson (bahendr@cs.sandia.gov) Rob Leland (rwlelan@cs.sandia.gov) Mail Stop 1109 Sandia National Laboratories Albuquerque, NM 87185 ------------------------------ From: Joseph Traub Date: Sat, 22 Jan 94 19:50:50 EST Subject: A Matrix Eigenvalue Problem The following eigenvalue problem was sent to me by Professor J. Luttinger, a theoretical physicist at Columbia. Please send your responses to Professor Luttinger at the e-mail address given at the end of his msg. The problem is concerned with the representation of the largest eigenvalue of a class of matrices. They are all symmetric and positive in the sense of Perron. The largest eigenvalue is represented as an integral (from zero to $2\pi$) of the log of a trigonometric polynomial. Here are a couple that are fairly easy to work out: 1) The matrix is 2x2, $$M_2 = \pmatrix{e^k&e^{-k}\cr e^{-k}&e^k \cr}\ , {\rm k}\ real}$$ The result is $2 log {\lambda_m\over 2} = {1\over 2\pi} \int_0^{2\pi} d\theta log (cosh 2k + sinh 2k\ cos\ \theta).\ \ \lambda_m$ is the largest eigenvalue of $M_2.$ 2) This matrix is 4x4: $$M_4 = \pmatrix{e^{2(k_1+k_2)}&e^{-k_1}&e^{-2k_2}&e^{k_1}\cr e^{-k_1}&e^{2k_2}&e^{k_1}&e^{-2(k_1+k_2)}\cr e^{-2k_2}&e^{k_1}&e^{2(k_1+k_2)}&e^{-k_1}\cr e^{k_1}&e^{-2(k_1+k_2)}&e^{-k_1}&e^{2k_2}\cr}, k_i\ real}.$$ The result is $$log {\lambda_m\over 4} = {1\over 2\pi} \int_0^{2\pi} d\theta log(cosh(2k_1) cosh(2k_2) + sinh(2k_1) cos\theta + sinh(2k_2) cos2\theta). (The largest eigenvalue of $m_4$ is again given by $\lambda_m.)$ There are other problems of the same general class, but with matrices that get larger and larger. If done directly they involve seemingly hopeless amounts of algebra, and yet I have reason to believe that a fairly simple closed form exists. J. Luttinger arb@cuphyf@phys.columbia.edu ------------------------------ From: Georg Hebermehl Date: Mon, 24 Jan 1994 14:05:40 +0100 Subject: BLAS for the PowerPC Hallo, Does anyone know whether manufacturers' BLAS Level 1,2 and 3 are implemented for the MPC 601 (Motorola PowerPC601 processor). Thanks in advance Georg Hebermehl (email: hebermehl@iaas-berlin.d400.de). ------------------------------ From: William Schiesser Date: Sat, 22 Jan 1994 12:01:40 EST Subject: New Book on Computational Mathematics Now available: Computational Mathematics in Engineering and Applied Science: ODEs, DAEs, and PDEs by W. E. Schiesser Lehigh University CRC Press, Inc. 2000 Corporate Blvd., N.W. Boca Raton, FL 33431 USA 1-800-272-7737 ISBN: 0-8493-7373-5 W. E. Schiesser wes1@lehigh.edu (Internet) . Iacocca Hall, Rm D307 (WES) (610) 758-4264 (office) . Lehigh University (610) 758-4260 (secretary) . 111 Research Drive (610) 758-5057 (fax) . Bethlehem, PA 18015 USA (please note the change in the . area code from 215 to 610) . ------------------------------ From: Matthias Hocks Date: Mon, 24 Jan 94 11:51:26 +0100 Subject: New Book on Numerical Toolbox for Verified Computing The book NUMERICAL TOOLBOX FOR VERIFIED COMPUTING I - Basic Numerical Problems (Springer Series in Computational Mathematics. Eds.: R. L. Graham, J. Stoer, R. Varga. Vol. 21) by R. Hammer, M. Hocks, U. Kulisch, D. Ratz is now available. It is published by Springer-Verlag, Heidelberg, New York and has 360 pages. Summary: This book presents an extensive set of tools for solving basic numerical problems with verification of the results using the scientific computer language PASCAL-XSC. It contains implementations of algorithms and many examples and exercises (available via FTP). Some topics covered are usually not found in standard numerical analysis texts. It is written for engineers, mathematicians and scientists working in scientific computing. Table of Contents: Introduction * Preliminaries - The Features of PASCAL-XSC - Mathematical Preliminaries * One-Dimensional Problems - Evaluation of Polynomials - Automatic Differentiation - Nonlinear Equations in One Variable - Global Optimization - Evaluation of Arithmetic Expressions - Zeros of Complex Polynomials * Multi-Dimensional Problems - Linear Systems of Equations - Linear Optimization - Automatic Differentiation for Gradients, Jacobians, and Hessians - Nonlinear Systems of Equations - Global Optimization * Utility Modules ------------------------------ From: Marc Moonen Date: Tue, 18 Jan 94 11:30:56 +0100 Subject: SVD and Signal Processing Workshop in Belgium 3rd International Workshop on SVD and Signal Processing August 22--25, 1994 Leuven, Belgium This Workshop on Singular Value Decomposition and Signal Processing is a continuation of two previous workshops of the same name which were held in Les Houches, France (1987), and Kingston, Rhode Island, U.S.A. (1990). Papers are solicited for technical sessions on SVD algorithms, architectures and applications. Submission of summary: March 15, 1994 Conference Committee : B. De Moor, M. Moonen, E. Deprettere, G.H. Golub, S. Hammarling, F.T. Luk, P. Van Dooren For further information contact : Mr. L. De Lathauwer, ESAT-K.U.Leuven, K. Mercierlaan 94, 3001 Heverlee, Belgium lieven.delathauwer@esat.kuleuven.ac.be ------------------------------ From: Marc Moonen Date: Tue, 18 Jan 94 11:30:56 +0100 Subject: Algorithms and Parallel VLSI Workshop in Belgium 3rd International Workshop on Algorithms and Parallel VLSI Architectures August 29--31, 1994 Leuven, Belgium Preliminary Announcement and Call for Papers This workshop is a continuation of two previous workshops of the same name which were held in Pont-a-Mousson, France (1990), and Bonas, France (1991), although the scope has been partly shifted and expanded. Papers are solicited for technical sessions on parallel algorithms, parallel architectures and parallel compilation. Submission of summary: March 15, 1994 Conference Committee : M. Moonen, F. Catthoor, E. Deprettere, P. Dewilde, P. Quinton, Y. Robert, J. Vandewalle For further information contact : Mr. F. Vanpoucke ESAT-K.U.Leuven, K. Mercierlaan 94, 3001 Heverlee, Belgium filiep.vanpoucke@esat.kuleuven.ac.be ------------------------------ From: Issman Emmanuel Date: Tue, 18 Jan 1994 16:40:36 +0100 Subject: Computational Fluid Dynamics Lectures in Belgium 25th ANNUAL COMPUTATIONAL FLUID DYNAMICS LECTURE SERIES VON KARMAN INSTITUTE FOR FLUID DYNAMICS (BELGIUM) 21-25 MARCH, 1994 The aim of this annual lecture series is to provide in-depth presentations on well-established methods and on recent advances in the field of numerical flow simulation. The program is at a specialist level complementary to the Introduction to Computational Fluid Dynamics (Lecture Series No. 2). This year the course will recognize the 25th anniversary of the VKI lecture series in CFD by focusing on the key algorithmic achievements of the past 25 years which constitute the basis of modern CFD for aerodynamic flows today : shock capturing TVD high resolution schemes for compressible flows, multigrid acceleration techniques, advances in linear algebra (Generalized Minimum Residual and Related Methods), unstructured grid methods and solution adaptivity. Key scientists at the origin of some of the most successful methods have been asked to review the lessons learned form the past, in order to determine the important area's where future developments will take place. With respect to high resolution shock capturing space discretization, both finite volume methods, cell vertex residual distribution schemes and SUPG finite element discretizations will be reviewed, emphasizing the different nonlinear mechanisms in the schemes which allow for monotonic discontinuity capturing. For application to systems of hyperbolic equations, both the classical Riemann solver flux difference splitting approach and the more recent multidimensional flux balance splitting methods will be discussed. The second subject will be on fast iterative solvers for efficient steady state computation. Both Krylov subspace methods and multigrid methods will receive considerable attention, with application to flow problems on structured as well as unstructured grids. In addition to these two major subjects, attention will be given to a new development of non-dissipative numerical schemes suitable for aeroacoustics. Lectures will be given in English and printed notes will be distributed to participants at registration on the first day. The speakers include: N. Kroll, DLR, Germany. T.J. Barth, NASA Ames Research Center, California, USA. P.L. Roe, U. Michigan, Ann Arbor, USA R. Radespiel, DLR, Germany. Y. Saad, U. of Minnesota, Minnesota, USA. G. Degrez and Mr. E. Issman, von Karman Institute. H. Deconinck, von Karman Institute. C. Rossow, DLR, Germany. H. Paillere and Mr. J-C. Carette, von Karman Institute. The Director of this lecture series is Prof. H. Deconinck of the von Karman Institute (email: deconinck@vki.ac.be). For registration contact : Lecture Series Secretary von Karman Institute Waterloose steenweg - Chaussee de Waterloo, 72 B-1640 Sint-Genesius-Rode Rhode-Saint-Genese (Belgium) FAX 32 2 3582885 TEL 32 2 3581901 This Lecture Series is supported by the COMETT programme trough the association CSAMI. ------------------------------ From: Karen Hahn Date: Tue, 18 Jan 94 13:48:49 EST Subject: IMACS Turbulence Workshop IMACS WORKSHOP ON (theoretical and computational aspects of) TURBULENCE Rutgers University, New Brunswick, NJ, USA February 10-11, 1994 PROGRAM: R. Agarwal (McDonnell Douglas Aerospace) USA "Turbulence Modeling in Aerospace CFD Applications - Current State of the Art" G. Berkooz (Cornell Univ.) USA "Dynamics and control of coherent structures in the wall layer of the turbulent boundary layer" M. Deville ((EPFL) Switzerland "Finite Element Computation of Two-Equation Turbulence Models" D. Fishelov (The Hebrew Univ.) Israel "Three-dimensional Computations of Turbulent Flow Over Bodies with Non-Cartesian Geometry" Y. Kimura (Univ. of Colorado) USA "Turbulence Simulations in Complex Time" R. Krasny (Univ. of Michigan) USA "Vortex Sheet Computations" J. Lee (Wright-Patterson AFB) USA "Chaos and Direct Numerical Simulation in Turbulence" A. Majda (Princeton Univ.) USA, (with E. Tabak, Princeton Univ.) "Singular Front Formation in a Model for Quasi-Geostrophic Flow" J. Morrison (Nasa Langley Research Center) USA "Three-Dimensional Solution Algorithm for Arbitrary Configurations with Two-Equation and Reynolds Stress Turbulence Models" R. Pelz (Rutgers Univ.) USA no title yet V. Russkikh (Inst. of Atomic Energetics) Russia "Estimate of Laminar flow's stability" B. Turkington (Univ. of Massachusetts) USA "Statistical Equilibrium Computations of Coherent Structures" E. Tziperman (Geophysical Fluid Dynamics Lab., Princeton Univ.) USA (Weizman Institute), Israel "Multilevel Turbulence Simulations" E. Weinan (Inst. for Advanced Study-Princeton) USA "Boussinesq Turbulence" N. Zabusky (Rutgers Univ.) USA "Collapse, intensification and reconnection in vortex dominated flows at high Reynolds number" M. Zelman (Rutgers Univ.) USA "Nonlinear Mechanisms of Boundary Layer Turbulisation" Dr. N. Zabusky will give a demonstration at the Vizlab on Friday, Feb. 11. ------------------------------ From: Sven Hammarling Date: Wed, 19 Jan 94 17:04:19 GMT Subject: NAG Users Association Conference 1994 NAG Users Association Conference 1994 - Invitation and Programme University of Oxford, Wednesday 13 - Friday 15 April 1994 Featuring a Special Session on Fortran 90 and an Open Day at NAG Ltd What is NAGUA? The NAG Users Association is a self-financing non-profitmaking body which exists to promote communications between the Numerical Algorithms Group (NAG) and users of the services and products NAG develops, maintains and markets. It provides information to NAG on the requirements of users, who are in turn kept informed of developments in services. NAGUA Conferences consist of both business and technical sessions providing an opportunity for users to meet each other and members of NAG, to hear about others' experiences and to find out about new products and services. Attendance at the conference is open to any user of NAG's products and services. The thirteenth conference of the NAG Users Association will be held in the historic City of Oxford. Speakers include: Brian Ford, Director, NAG Limited Ken Brodlie, University of Leeds Victoria Pennington, University of Leeds Marco Vaccari, ENEA Sven Hammarling, NAG Limited John Reid, Rutherford Appleton Laboratory John Steel, London Parallel Applications Centre & QMW Computing Christian de Polignac, Institut Laue Langevin Yann-Herve De Roeck, IFREMER Jerzy Wasniewski, Danish Computer Centre for Research and Education Herve Butault, INRIA Iain Fleming and Richard Hann, NAG Limited Jeremy Du Croz, NAG Limited Marco Codutti, Brussels Free University Benno Sueselbeck, Westfaelische Wilhelms-Universitaet Muenster Hagen Scherb, GSF/Medis Norbert Koeckler, Universitaet Gesamthochschule Paderborn For an invitation and booking form contact NAG Users Association PO Box 426 Oxford OX2 8SD United Kingdom Telephone +44(0)865 311102 Fax +44(0)865 310139 email nagua@nag.co.uk ------------------------------ From: Keyes David E Date: Fri, 21 Jan 1994 16:56:12 -0500 Subject: NASA Workshop on Parallel Numerical Algorithms ICASE/NASA Langley Workshop on Parallel Numerical Algorithms, 23-25 May 94 Purpose: To acquaint developers of high-performance applications codes based on partial differential equations or integral equations with the state of the art in core areas of algorithms and the parallel computational environment, and to engage representative experts from the algorithms community in discussions about their applicability. Rationale: A principal parallel challenge in large computational fluid dynamics, computational structural mechanics, and computational electricity and magnetism problems is the implicit solution process. Hence, these applications areas meet in a common algorithmic core. However, results on model problems are often not transferable. The workshop will promote more useful development and more rapid integration of parallel algorithms in high-performance NASA-related applications. TECHNICAL PROGRAM Keynote Address: Algorithmic Requirements in Aerospace Computations, Tom Zang, NASA Langley Linear System Solvers: dense methods -- James Demmel, Univ. of California-Berkeley sparse direct methods -- Mike Heath, Univ. of Illinois-Urbana sparse iterative methods -- Henk Van der Vorst, Univ. of Utrecht eigensolvers -- Dan Sorensen, Rice University Preconditioning Methods: approximate and incomplete factorizations -- Tony Chan, UCLA multilevel methods -- Steve McCormick, Univ. of Colorado-Boulder domain decomposition methods -- Barry Smith, UCLA Fast Transforms, Fast Summation, and Fast Operator Application: FFTs and generalized transforms -- Richard Pelz, Rutgers University fast multipole methods -- Jacob White, MIT multiresolution application of operators -- Ami Harten, Tel-Aviv University Tools and Environments: decomposition and mapping methods -- Alex Pothen, Old Dominion Univ./ICASE compiler and run-time environments -- Dennis Gannon, UIPUI Performance: performance metrics and benchmarking -- David Bailey, NASA Ames performance ``debugging'' -- Bill Gropp, Argonne National Laboratory Venue: Hampton Radisson, Hampton, Virginia For further workshop and hotel information: Contact Emily Todd, Conference Coordinator, ICASE (emily@icase.edu, 804-864-2174) ------------------------------ From: William Behrman Date: Fri, 21 Jan 94 21:50:47 -0800 Subject: High-Precision Unconstrained Minimization Can you recommend a means to solve an unconstrained minimization problem to high precision? For our application, in order to achieve adequate precision in the final solution we need the calculation to be performed in at least 32 decimal digits of precision. We have double precision Fortran routines for the objective function, gradient, and Hessian. We have access to several brands of workstation: Sun, DEC, and SGI. We also have access to Mathematica and Maple. Any suggestions would be greatly appreciated. Thank you very much, Sincerely, Bill Behrman Scientific Computing Stanford ------------------------------ From: Francois Cellier Date: Fri, 21 Jan 1994 19:57:08 -0700 (MST) Subject: Conference on Bond Graph Modeling and Simulation ANNOUNCEMENT AND CALL FOR PAPERS The Society for Computer Simulation International (SCS) presents: 1995 INTERNATIONAL CONFERENCE ON BOND GRAPH MODELING AND SIMULATION January 15-18, 1995 Tropicana, Las Vegas, Nevada Part of the 1995 SCS Western Multiconference on Computer Simulation The 1995 International Conference on Bond Graph Modeling and Simulation brings together research paper presentations, panel sessions, tutorials, workshops, seminars, industrial applications, and software demonstrations that use Bond Graph modeling methods. There will be also featured plenary speakers and some special invited presentations. This conference will focus on Bond Graph modeling techniques for dynamic systems. Theoretical principles for electrical, mechanical, hydraulic, pneumatic, and control system applications will be presented. Leading industrial users of the method in automotive, aircraft, fluid power, kinematics, multibody systems, and social and biological systems have been invited. Research papers are welcome in the following categories of presentation sessions. . Tutorials . Mechanical Systems and Robotics . Panel Discussions . Electrical and Power Systems . Software and Tools . Control Systems . Bond Graph Theory . Thermal and Chemical Systems . Advanced Bond Graph Methodology . Biomechanics and Prosthetics . Bond Graphs and Block Diagrams . Ecological Systems . Computer Graphics and B.G. Modeling . Social and Economic Systems DEADLINES: . April 30, 1994 Short abstracts due (200 words/2 copies). . May 15, 1994 Invitations to submit full papers will be extended. . June 30, 1994 Full papers due (five copies). . August 15, 1994 Notification of paper acceptance to authors. . September 30, 1994 Camera Ready Copies due. Manuscripts can be submitted either to the General Chairman or the Program Chairman. Please add a cover letter stating your name, affiliation, mail address, telephone number, FAX number, and EMail address. Electronic submission of the draft manuscripts in the form of a compressed and unencoded postscript file is encouraged. Abstracts will be reviewed by the two Chairmen for suitability to the conference. Each full paper will be reviewed by at least two members of the International Program Committee. General Chairman Program Chairman Francois E. Cellier,Ph.D. Jose J. Granda, Ph.D. Associate Professor Professor Dept. of Electr. and Computer Engr. Department of Mechanical Engineering University of Arizona California State University, Sacramento Tucson, Ariz. 85721 Sacramento, Calif. 95819 U.S.A. U.S.A. Phone: +1(602)621-6192 Phone: +1(916)278-5711 FAX: +1(602)621-8076 FAX: +1(916)278-5949 EMail: Cellier@ECE.Arizona.Edu EMail: GrandaJJ@ECS.CSUS.Edu ------------------------------ From: Jerzy Wasniewski Date: Sun, 23 Jan 1994 10:51:23 +0100 (MET) Subject: Workshop on Parallel Scientific Computing in Denmark To the Danish Computing Community: Jack Dongarra is coming to Denmark. He will be a visiting professor at UNI*C for two months, June and July, 1994. Professor Jack Dongarra is famous for his work on supercomputing and numerical analysis. He introduced the concept of BLAS (Basic Linear Algebra Subprograms) for the Vector and Parallel Computers and he is the co-author of several numerical books and numerical libraries, like LINPACK and LAPACK. He is also deeply involved with PVM (Parallel Virtual Machine) and development of scalable libraries. First of all we are together organising the Workshop on Parallel Scietific Computing and Tutorial on heterogeneous network computing (PVM and Hence). To get information about the Workshop and Tutorial, subscribe to the mailing list. Just submit a message to listserv@vm.uni-c.dk containing the command sub para94-l your-name To register for the Workshop and Tutorial and to obtain more information about the Workshop and Tutorial, send a message to workshop@uni-c.dk or send a fax: (+45) 45 93 02 20 addressing to the "Workshop on Parallel Scientific Computing" or to Jerzy Wasniewski at UNI*C. If another School or Department would like to organise either a lecture or a seminar with Jack Dongarra, please contact Jerzy Wasniewski at UNI*C. Jerzy Wasniewski UNI*C DTH, Bldg 304 2800 Lyngby, Denmark Tel: (+45) 42 88 39 99 + 2426 Fax: (+45) 45 93 02 20 E-mail: jerzy.wasniewski@uni-c.dk ------------------------------ From: Herman.te.Riele@cwi.nl Date: Mon, 24 Jan 1994 17:46:53 +0100 Subject: Symposium on Parallel Computing in the Netherlands CWI - RUU SYMPOSIA "MASSIVELY PARALLEL COMPUTING AND APPLICATIONS" In 1993-1994, the Centre for Mathematics and Computer Science Amsterdam (CWI) and the University of Utrecht (RUU) are organising a series of symposia on massively parallel computing and applications. This is to announce the fourth meeting which centres around the theme: PARALLEL NUMERICAL ALGORITHMS AND SOFTWARE Date: Friday, February 4, 1994 Location: CWI, Kruislaan 413, Amsterdam, The Netherlands Room: Z011 Speakers: Eric ten Cate and Edwin Vollebregt (Delft Univ. of Technology) Maya Neytcheva (Catholic University Nijmegen) Martin van Gijzen (Utrecht University) Johan De Keyser (Catholic University Leuven, Belgium) For further information, e.g., about how to reach CWI, contact H.J.J. te Riele (CWI, tel. +31 20 5924106) If you wish to receive a LaTeX-file of the abstracts of the lectures, please send a request to herman@cwi.nl . Herman te Riele (CWI) Henk van der Vorst (RUU en CWI) ------------------------------ From: Kearfott Ralph B Date: Tue, 18 Jan 1994 14:01:59 -0600 Subject: Position at University of Southwestern Louisiana UNIVERSITY OF SOUTHWESTERN LOUISIANA Department of Mathematics Applications are invited for a tenure-track assistant or associate professorship appointment in numerical analysis or computational mathematics. Duties involve teaching, research and other related activities associated with an academic position. Junior applicants must show strong research promise; senior applicants should have demonstrated leadership in research and willingness to supervise masters or doctoral students. Success in attracting outside funding is preferred. Applicants must have a Ph.D. degree by the time of appointment, and are expected to excel in teaching. The appointment will begin with the academic year 1994-1995. Salary is negotiable, depending on qualifications. A current resume', three letters of recommendation and any other supporting materials should be sent to C. Y. Chan, Head Department of Mathematics University of Southwestern Louisiana Lafayette, LA 70504-1010 The screening of applicants will begin on March 15, 1994. EEO/AA. ------------------------------ From: J. M. Aitchison Date: Fri, 21 JAN 94 15:00:31 +0100 (BST) Subject: Position at Royal Military College of Science Royal Military College of Science Cranfield University Shrivenham. Applied Mathematics & Operational Research Group LECTURESHIP A vacancy exits for a lecturer to join the Applied Mathematics and Operational Research Group at RMCS, Shrivenham, which is a faculty of Cranfield University but situated in south west Oxfordshire. The research interests of the group include mathematical modelling, numerical methods, scientific software and simulation. Research is funded by contracts with both defence and non-defence industries and by SERC awards. The teaching committments of the group include the modular MSc programs in Scientific Applications Software, Numerical Methods & Software Systems, Mathematical Modelling and in Military Operational Research. These courses are taken by both full and part time students and the first two have accepted by the SERC as suitable for the award of Advanced Course Studentships. Other teaching committments include a wide range of service courses to engineering students. Applications are invited from candidates with compatible research and teaching interests for a post of lecturer to start on 1st April 1994 or as soon as possible thereafter. Further particulars and application forms may be obtained from the Personnel Office, RMCS, Shrivenham Wilts SN6 8LA. Tel 0793 785758 quoting reference SDM5. Informal enquiries may be made to Dr J M Aitchison, tel : 0793 785276, email : aitchison@rmcs.cranfield.ac.uk or na.aitchison@na-net.ornl.gov. ------------------------------ End of NA Digest ************************** -------