Send mail to: mgnet@cs.yale.edu for the digests or bakeoff
mgnet-requests@cs.yale.edu for comments or help
Current editor: Craig Douglas douglas-craig@cs.yale.edu
Anonymous ftp repository: casper.cs.yale.edu (128.36.12.1)
World Wide Web: http://www.yale.edu (access through the CS Department)
Today's editor: Craig Douglas (douglas-craig@cs.yale.edu)
Volume 4, Number 7 (July 31, 1994)
Today's topics:
Copper Mountain 95 Date Change
Flame Studies (2 articles)
New Journal
Recent Additions to mgnet.bib
-------------------------------------------------------
Date: Tue, 19 Jul 94 06:54:26 -0600
From: Steve McCormick
Subject: Copper Mountain 95 Date Change
CHANGE OF DATES FOR COPPER MOUNTAIN CONFERENCE ON MULTIGRID METHODS
Due to incorrect estimates by Copper Mountain Resorts of their low season
schedule, we have found it advisable to move the conference back one week. We
apologize if this has caused any inconvenience. However, we will also take
this opportunity to change the cost of student registration: it is now
gratis. Please encourage students to attend and/or submit a paper to the
student competition!
COPPER MOUNTAIN CONFERENCE
ON
MULTIGRID METHODS
Copper Mountain, Colorado
April 2 - April 7, 1995
CONFERENCE DEADLINES
Student Papers Dec. 1, 1994
Abstracts Jan. 1, 1995
Lodging Reservations Feb. 28, 1995
Early Registration Feb. 28, 1995
Papers for Proceedings Apr. 2, 1995 (at conference)
Editor's Note: I edited Steve's ad for the conference down in size.
------------- The full text is similar to what was in the last digest;
it is in mgnet/conferences/copper95.txt.
-------------------------------------------------------
From: douglas-craig (Craig Douglas)
Date: Fri, 15 Jul 1994 07:11:46 -0400
Subject: Flame Studies (2 articles)
Multigrid solution of flame sheet problems
on serial and parallel computers
Craig C. Douglas
Alexandre Ern
Mitchell D. Smooke
ABSTRACT
Flame sheet problems are on the natural route to the numerical solution of
detailed chemistry, laminar diffusion flames, which, in turn, are important in
many engineering applications. In order to model the flame structure more
accurately, we use the vorticity-velocity formulation of the fluid flow
equations instead of the more traditional stream function-vorticity approach.
The numerical solution of the resulting nonlinear coupled elliptic partial
differential equations involves damped Newton iterations, adaptive grid
procedures, and multigrid methods. We focus on nonlinear damped Newton
multigrid, using either one way or correction schemes. Results on serial and
parallel processors are presented.
Editor's Note: in mgnet/papers/Douglas-Ern-Smooke/fsheet.ps and
------------- mgnet/papers/Douglas-Ern-Smooke/fsheet.abs.
Numerical Simulation of Laminar Diffusion Flames
Craig C. Douglas
Alexandre Ern
Mitchell D. Smooke
ABSTRACT
Not too long ago, anyone wanting to solve large science or engineering
problems had to first get access to a supercomputer costing millions of
dollars. Quite recently, a new breed of relatively inexpensive work stations
became widely available. These machines have scalar peak speeds of 30--275
megaflops with ones on the horizon of 400 or more (which compares rather
favorably with vector supercomputers of not so long ago). While these rates
are only seen for simple problems like dense matrix--matrix multiplication,
the rates seen for many problems are quite high.
In this article, we describe a class of problems which can now be solved on
machines individuals can afford to own rather than just on ones costing
millions of dollars. Of course, the problem with using a single one of these
machines is that the option of connecting a collection of machines together or
buying a parallel version of the work station becomes more and more
tantalizing.
In fact, during the course of two years we did all of the above. We started
on a single machine with a 100 megaflop peak rate (an IBM RISC System/6000
model 560 computer). Then we used a farm of the IBM's, an IBM SP1, and
finally an SP2. Due to a nice feature of the communications' library we used
(EUIH), the executables worked on the ethernet at Yale or on the fast switches
in the SP1/SP2's without either recompiling or relinking.
Editor's Note: in mgnet/papers/Douglas-Ern-Smooke/laminar.ps and
------------- mgnet/papers/Douglas-Ern-Smooke/laminar.abs.
-------------------------------------------------------
From: AOH Axelsson
Date: Sun, 17 Jul 1994 15:58:01 +0200
Subject: New Journal
A NEW JOURNAL PUBLISHED BY WILEY
NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS
------------------------------------------
Aims and Scope
This journal is directed at researchers in Numerical Analysis,
Computer Sciences and Natural Sciences, engineers and economists
who either take part in the development of methods in Numerical
Linear Algebra or use such methods in their research.
Topics covered include (but are not limited to):
-Conjugate Gradients like and other iterative methods;
-Preconditioning Methods; Direct Solution Methods;
-Numerical Methods for Eigenproblems;
-Newton-like Methods for Nonlinear Equations;
-Parallel and Vectorizable Algorithms in Num. Lin. Algebra;
-Application of Methods of Numerical Linear Algebra in Science,
Engineering and Economics.
The journal emphasizes mathematical rigour in presenting new methods
in Numerical Linear Algebra including their analysis and applications.
Where it turns out to be difficult to give full mathematical rigour
to the presentation, well-chosen numerical test problems can suffice
to demonstrate the usefulness of the presented method, if these are
accompanied by a discussion and heuristic explanations.
The journal also emphasizes analysis of the computational and
communication complexity of algorithms in Numerical Linear Algebra
when implemented on different computer architectures.
The journal solicits original research papers and survey articles. All
papers should contain a discussion indicating in which area(s) the
approach, suggested in the paper, can be used. The authors should
strive at ensuring that the presented methods are easily understandable
by as broad a spectrum of readers as possible.
Initial submission: Four copies of the manuscript should be sent to the
Managing Editor:
Professor Owe Axelsson
Faculty of Mathematics and Informatics
University of Nijmegen
Toernooiveld
6525 ED Nijmegen
THE NETHERLANDS
Editor's Note: They publish multigrid papers in this journal for sure
------------- and probably domain decomposition ones, too.
-------------------------------------------------------
From: douglas-craig (Craig Douglas)
Date: Fri, 29 Jul 1994 18:14:01 -0400
Subject: Recent Additions to mgnet.bib
2134 entries, 105 pages, and growing, but who is counting?
\documentstyle[12pt]{siam}
\sloppy
\begin{document}
\bibliographystyle{siam}
\begin{thebibliography}{10}
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20 (1993), pp.~85--100.
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{\sc Z.~Liu and C.~Liu}, {\em Fourth order finite difference and multigrid
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{\sc S.~Moorthi and R.~W. Higgins}, {\em Application of fast {F}ourier
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{\sc E.~C. Nacul and G.~S. Lett}, {\em Under and over relaxation techniques for
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{\sc A.~Nakano, R.~K. Kalia, and P.~Vashishta}, {\em Molecular dynamics
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{\sc A.~Nakano, P.~Vashishta, and R.~K. Kalia}, {\em Parallel
multiple--time--step molecular dynamics with three--body interaction},
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{\sc I.~M. Navon and Y.~Cai}, {\em Domain decomposition and parallel processing
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solutions for the incompressible {N}avier--{S}tokes equations in general
co--ordinates on staggered grids}, Int. J. Numer. Meth. Fluids, 17 (1993),
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{\sc P.~Oswald}, {\em Hierarchical conforming finite element methods for the
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{\sc J.~D.~P. Passchier and W.~J. Goedheer}, {\em A two dimensional fluid model
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{\sc J.~Peraire, J.~Peiro, and K.~Morgan}, {\em Finite element multigrid
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{\sc M.~Peric}, {\em Natural convection in trapezoidal cavities}, Numer. Heat
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{\sc M.~Peric, M.~Schafer, and E.~Schreck}, {\em Numerical simulation of
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{\sc F.~Reale, M.~Barbera, and S.~Sciortino}, {\em A parallel 2-{D}
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{\sc A.~Reusken}, {\em On maximum norm convergence of multigrid methods for
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{\sc I.~Yavneh}, {\em A method for devising efficient multigrid smoothers for
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{\sc H.~K. Yong and Z.~C. Nam}, {\em Parallel solution of the neutron diffusion
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\bibitem{LYZaslavsky_1993a}
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neutron diffusion reactor core calculations}, Appl. Math. Comput., 53 (1993),
pp.~13--26.
\end{thebibliography}
\end{document}
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