--------------------------------------------------- N e w s f r o m t h e G A M S P r o j e c t --------------------------------------------------- As of 14 September 2001 GAMS catalogs ... 4 repository sites 111 packages 8792 problem-solving modules ------------------------ Recent Additions to GAMS (14 Sep 2001) ------------------------ ELLIPGRID : Added routine for generating two-dimensional boundary-fitted grids NAGC : Added Mark 6 of the NAG C Library TRANSFINITE : Added routines for generating two-dimensional boundary-fitted grids ------------------------ Recent Additions to GAMS (20 May 2000) ------------------------ NAG : Updated to Mark 19 of the NAG Fortran Math Library ------------------------ Recent Additions to GAMS (30 Nov 1998) ------------------------ IMSLM : Updated to Version 3 of the IMSL Fortran Math Library NAG : Updated to Mark 18 of the NAG Fortran Math Library ------------------------ Recent Additions to GAMS (5 Apr 1996) ------------------------ STOPWATCH : Fortran 90 module for timing code segments. Developed by W. Mitchell. SPBLASC : Sparse Basic Linear Algebra Subprograms in C. Developed by K. Remington. HBIO : C procedures for input and output of sparse matrices in Harwell-Boeing Exchange format. Developed by K. Remington and R. Pozo. ------------------------ Recent Additions to GAMS (4 Aug 1995) ------------------------ IML++ : C++ templated library of modern iterative methods for solving symmetric and nonsymmetric linear systems. Templates allow the same source code to work for dense, sparse, and distributed matrices. Includes Richardson and Chebyshev Iteration, Conjugate Gradient, Conjugate Gradient Squared (CGS), BiConjugate Gradient (BiCG), BiConjugate Gradient Stabilized (BiCGSTAB), Generalized Minimum Residual (GMRES), and Quasi-Minimal Residual (QMR) without lookahead. Developed by J. Dongarra, A. Lumsdaime, R. Pozo and K. Remington. SPARSELIB++: C++ class library for sparse matrix computation. Includes matrix classes in several storage formats (e.g. compressed row, compressed column, coordinate), and basic management utilities. Uses Sparse BLAS Toolkit for kernel operations (e.g. matrix-vector multiply) to enhance portability and performance on wide range of architectures. Includes common preconditioners for iterative solvers. Developed by A. Lumsdaime, R. Pozo and K. Remington. MV++ : A small, efficient, set of concrete vector and simple matrix classes for numerical computing. It is not intended as a general vector container class, but rather designed specifically for optimized numerical computations on RISC and pipelined architectures. It is one step above a C/C++ array. Developed by R. Pozo. ------------------------ Recent Additions to GAMS (10 Mar 1995) ------------------------ DIFFPACK : A set of object-oriented libraries for solving partial differential equations, and several Unix utilities for general software management and numerical programming. Aimed at rapid prototyping of simulators based on PDEs, while still offering high efficiency. Implemented in C++, the libraries are organized into several layers: Basic Tools, Linear Algebra Tools, Dp Kernel, Dp Utilities, and Dp Applications. (See class I2) ------------------------ Recent Additions to GAMS (8 Jan 1995) ------------------------ CLAPACK : Basic linear algebra package in C. Contains 598 user- callable procedures for linear systems of equations, eigenvalue problems, and related decompositions. (This is an f2c-based translation of LAPACK.) CBLAS : A C version of the basic linear algebra subprograms (BLAS) upon which CLAPACK is based. ------------------------ Recent Additions to GAMS (2 Dec 1994) ------------------------ MINSURF : Fortran programs for the minimum surface problem by Robert Renka. (See package A or class P.) RKSUITE.F90 : A Fortran-90 implementation of RKSUITE, a set of codes for the initial value problem for a first order system of ordinary differential equations, by Brankin, Gladwell, and Shampine. (See package ODE or class I1a1a.) CVODE : A C implementation of VODE, software the initial value problem for stiff or nonstiff nonlinear systems of first order ordinary differential equations, by Cohen and Hindmarsh. (See package ODE or class I1a2.) CLAWPACK : Fortran software for hyperbolic systems of conservation laws in one and two space dimensions by Randy LeVeque. (See package PDES or class I2a2.) GEMM-Based Level 3 BLAS : Basic matrix-matrix operations designed to be highly efficient on machines with a memory hierarchy, by Kagstrom, Ling and Van Loan. (See package BLAS or class D1b.) LAPACK : Fortran linear algebra package, updated to Version 2. NAG : Multipurpose Fortran mathematical software library, updated to Mark 16. -------------------------- GAMS on the World Wide Web (9 Mar 1994) -------------------------- An HTTP/GAMS gateway providing access to most GAMS facilities for users of the World Wide Web is now available. This can be accessed using most WWW browsers, including Mosaic. To do so, open the URL http://gams.nist.gov. ---------------------- GAMS Clients Available (11 Feb 1994) ---------------------- The two principal user interfaces to GAMS, gams (the command-line interface) and xgams (the X11 Motif interface), are now available for retrieval by anonymous FTP from enh.nist.gov. Each of these programs is a client of the GAMS server on gams.nist.gov. That is, they query the GAMS server in real-time (using socket-based TCP/IP communication) to obtain GAMS information. Frequent users of gams and xgams are encouraged to obtain copies of these programs to run on their own workstations, as they will exhibit better performance than using the existing gams and xgams accounts on gams.nist.gov. A source distribution suitable for most Unix systems is available, and separate binary distributions for Hewlett-Packard, IBM RISC, Silicon Graphics, and Sun workstations are provided. To obtain then retrieve the README file in the gams subdirectory and follow the directions found there. For example : ftp enh.nist.gov user anonymous passwordbinary cd gams get readme ------------------------------------------- GAMS Command-line Interface Improves Syntax (20 Dec 1993) ------------------------------------------- Several new features have been added to the command-line interface to GAMS. Among these are : (a) Search by Name You may now search for software by module or package name. A new command, NAME, has been added to facilitate this. Type ? search in gams for details. (b) Quick-view Module Lists When searching for modules in a given problem class or by name you will now first view a list of package names, module names, and very brief descriptions. (Previously one could only view individual module abstracts.) (c) Easier Module Abstract Selection When presented with a module list you may now view the abstract of any module in the list by simply typing its index number. (Previously one could only view them in order.) A variety of additional changes have been made. Type ? at any time in gams for suggestions about what to do next. --------------------- GAMS Host Goes Online (20 Dec 1993) --------------------- A Sun SPARCstation 10 Model 51 was recently put into service as the host for the GAMS system. Among the services provided are: (a) Primary host for the GAMS server. (b) Anonymous gams access. (c) Anonymous xgams access. To use the anonymous GAMS access accounts, telnet to gams.nist.gov (129.6.80.11) and login as gams (for the command-line interface) or xgams (for the X11 graphical user interface). The system was purchased with a Pioneer Fund grant from the US Department of Commerce. ----------------------------- GAMS Improves netlib Coverage (24 Jan 1994) ----------------------------- netlib is a large collection of public-domain software and related information which is made available on the Internet as a service by Oak Ridge National Laboratory and AT&T Bell Laboratories. Software in netlib may be requested by sending specially-formatted mail requests to netlib@ornl.gov or netlib@research.att.com. GAMS now includes information about 1854 software modules in 42 packages featured on netlib. GAMS retrieves items from netlib using a direct link to Oak Ridge. You may preview them in GAMS and obtain copies for your own use. For further information on netlib, send the message send index to one of the e-mail addresses given above.

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