Subject: NA Digest, V. 95, # 33 NA Digest Sunday, August 20, 1995 Volume 95 : Issue 33 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Automatic Differentiation Tools ADIFOR 2.0 is Now Available Decision Tree for Optimization Software Matrix Re-ordering for ILU-CG Change of Address for Roger Ghanem New Books on Nonconvex Optimization and its Applications Scottish Computational Maths Symposium Postdoctoral Position at University of Minnesota Submissions for NA Digest: Mail to na.digest@na-net.ornl.gov. Information about NA-NET: Mail to na.help@na-net.ornl.gov. URL for the World Wide Web: http://www.netlib.org/na-net/na_home.html ------------------------------------------------------- From: Chris Bischof Date: Mon, 14 Aug 1995 14:56:26 -0500 Subject: Automatic Differentiation Tools Automatic Differentiation (AD) is a technique for augmenting computer programs with derivative computations. A compilation of available automatic differentiation software available at http://www.mcs.anl.gov/Projects/autodiff/AD_Tools It provides short highlights of Fortran 77, Fortran 90, ANSI-C and C++ AD tools, as well as of system integrating AD such as MAPLE or AMPL, and AD support libraries. For each contribution, a brief description of its functionality, highlights, as well as pointers to developers and informational material are provided. Chris Bischof Mathematics and Computer Science Division Argonne National Laboratory bischof@mcs.anl.gov ------------------------------ From: ADIFOR Project Date: Wed, 16 Aug 1995 10:39:50 -0500 Subject: ADIFOR 2.0 is Now Available The ADIFOR 2.0 automatic differentiation system is now available. We are proud to mention that ADIFOR 2.0 recently won the 1995 Wilkinson Prize for Numerical Software at the Int. Conf. on Industrial and Applied Mathematics (ICIAM 95) in Hamburg, Germany. To find out more about ADIFOR, in particular how to obtain the ADIFOR 2.0 system or documentation and reports pertaining to it, visit the ADIFOR web sites at http://www.mcs.anl.gov/adifor or http://www.cs.rice.edu/~adifor (note the tilde!) ADIFOR is not in the public domain, but it is available for non-commercial use or evaluation for commercial purposes free of charge. The ADIFOR 2.0 system is a tool for the automatic differentiation of Fortran 77 programs. Given a Fortran 77 source code and a user's specification of dependent and independent variables, ADIFOR will generate an augmented derivative code that computes the partial derivatives of all of the specified dependent variables with respect to all of the specified independent variables in addition to the original result. The ADIFOR 2.0 system consists of the ADIFOR 2.0 preprocessor, the ADIntrinsics 1.0 intrinsic handler system, and the SparsLinC 1.0 (Sparse Linear Combination) library. It offers full Fortran 77 support, flexible handling of Fortran intrinsics, and transparent sparsity support. Christian Bischof Alan Carle Math & Comp. Sc. Div. Center for Research on Parallel Comp. Argonne National Lab. Rice University bischof@mcs.anl.gov carle@cs.rice.edu ------------------------------ From: Hans Mittelmann Date: Thu, 17 Aug 1995 09:22:46 -0700 Subject: Decision Tree for Optimization Software Decision Tree for Optimization Software An HTML-version of the decision tree and guide recently announced in NA-digest 95-31 and the sci.math.num-analysis and sci.op-research newsgroups is now accessible at http://plato.la.asu.edu/guide.html Hans D. Mittelmann Arizona State University Phone: (602) 965-6595 Department of Mathematics Fax: (602) 965-0461 Tempe, AZ 85287-1804 email: mittelmann@math.la.asu.edu ------------------------------ From: Bas Braams Date: Fri, 18 Aug 1995 11:12:55 GMT Subject: Matrix Re-ordering for ILU-CG Matrix re-ordering strategies are important in connection with direct solution methods for sparse equations; e.g. /1/. What about matrix re-ordering in connection with ILU-based iterative methods? I would be interested to know of studies comparing the effectiveness of various matrix orderings for the (non-symmetric) ILU-CG solution of sparse systems. I am particularly interested in systems that come from the discretization of an advection-diffusion equation. /1/ I. S. Duff, A. M. Erisman and J. K. Reid: Direct Methods for Sparse Matrices, Clarendon Press, Oxford, 1986. -- Bas Braams (braams@cims.nyu.edu) ------------------------------ From: Roger Ghanem Date: Mon, 14 Aug 1995 17:26:51 -0400 Subject: Change of Address for Roger Ghanem New address is: Roger Ghanem, 201 Latrobe, The Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218. Tel: (410) 516-7647 Fax: (410) 516-7473 email: ghanem@venus.ce.jhu.edu ------------------------------ From: Panos Pardalos Date: Mon, 14 Aug 1995 11:41:22 -0400 Subject: New Books on Nonconvex Optimization and its Applications Nonconvex Optimization and its Applications Kluwer Academic Publishers Title: Advances in Optimization and Approximation/ edited by D.-Z. Du and J. Sun Series Name: Nonconvex optimization and its applications ; vol. 1 Publication Info: Dordrecht ; Boston : Kluwer Academic Publishers, 1994. ISBN: 0-7923-2785-3 Title: Handbook of Global Optimization / edited by Reiner Horst and Panos M. Pardalos. Series Name: Nonconvex optimization and its applications ; vol. 2 Publication Info: Dordrecht ; Boston : Kluwer Academic Publishers, 1995. ISBN: 0-7923-3120-6 Title: Introduction to global optimization / by Reiner Horst, Panos M. Pardalos, and Nguyen V. Thoai. Series Name: Nonconvex optimization and its applications ; v. 3 Publication Info: Dordrecht ; Boston : Kluwer Academic Publishers, 1995. ISBN: 0-7923-3556-2 (also available in paperback) Title: Minimax and applications / edited by Ding-Zhu Du and Panos M. Pardalos. Series Name: Nonconvex optimization and its applications ; v. 4 Publication Info: Boston : Kluwer Academic Publishers, 1995. ISBN: 0-7923-3615-1 How to order the books: E-mail kluwer@world.std.com. Fax Kluwer at 617-871-6528. Phone Kluwer at 617-871-6600. ------------------------------ From: Dugald Duncan Date: Fri, 18 Aug 1995 17:54:27 +0100 Subject: Scottish Computational Maths Symposium SCOTTISH COMPUTATIONAL MATHEMATICS SYMPOSIUM 1995 SECOND ANNOUNCEMENT 10am-5pm Wednesday 20th September Hume Tower, University of Edinburgh, Scotland. This is the fourth annual SCOTTISH COMPUTATIONAL MATHEMATICS SYMPOSIUM organised by D.B. Duncan (Heriot-Watt University) and D.M. Sloan (University of Strathclyde) with the aim of bringing together mathematicians and others who develop and/or use computer algorithms to solve mathematical problems. The meetings are open to everyone interested and this one is supported by a grant from the London Mathematical Society. SPEAKERS * M. Berzins (University of Leeds) "Adaptive Solution Methods for Combustion and Atmospheric Dispersion Problems using the Method of Lines" * D.F. Griffiths (University of Dundee) To be announced. * J.C. Mason (University of Huddersfield) "Approximation with Neural Networks" * A. Ramage (University of Strathclyde) "Iterative Methods for a Class of Indefinite Linear Systems" * J.C. Eilbeck/D.B. Duncan (Heriot-Watt University) "Mathematics on the Internet". REGISTRATION & INFORMATION Please register as soon as possible (deadline September 8th) by sending a cheque for 20 pounds (15 for students) payable to Heriot-Watt University. Include your address so that we can contact you. The fee includes tea, coffee and lunch. To register or to obtain further information please contact: SCMS95, Department of Mathematics, Heriot-Watt University, Edinburgh, EH14 4AS. e-mail: dugald@ma.hw.ac.uk. WWW Information: http://www.ma.hw.ac.uk/scms/ ------------------------------ From: Yousef Saad Date: Wed, 16 Aug 1995 10:30:49 -0500 (CDT) Subject: Postdoctoral Position at University of Minnesota University of Minnesota Department of Computer Science Position available: Postdoctoral Associate A Postdoctoral Associate position is available to work on a project related to parallel sparse matrix computations. Applicants must have a strong background in numerical linear algebra. Good knowledge of partial differential equations, domain decomposition techniques, sparse matrix techniques, and iterative methods, is desirable. A Ph.D. in Computer Science or related field is required as well as an extensive experience in parallel programming. The project, supported by ARPA, involves the development of a library for sparse matrix computations called P_SPARSLIB. A first version of the library is currently available and part of the work consists of adding functionality to the library, as well as improving performance on specific platforms. The university of Minnesota provides a state-of-the-art environment for supercomputing and parallel computing. In addition to hardware available to U of M researchers at the Minnesota Supercomputer Center, the department of Computer Science also houses a cluster of SGI workstations and a cluster of IBM workstations and is soon to receive an IBM SP2. Interested applicants should send a resume and cover letter *as soon as possible* to: Professor: Yousef Saad Dept. of Computer Science University of Minnesota 4-192 EE/CSci Building 200 Union Street S.E. Minneapolis, MN 55455 ------------------------------ End of NA Digest ************************** -------