GAMS GAMSA Modeling Language for Mathematical Programming
The General Algebraic Modeling System (GAMS) is a high level modeling language for formulating models with concise algebraic statements that are easily read by modelers and computers alike, easily modified, and easily moved from one computer environment to another - it is independent of the solution algorithms of specific solvers. Features for model documentation, detailed debugging, sensitivity analysis and report generation are provided.
GAMS (General Algebraic Modeling System) is designed for modeling linear, nonlinear, and mixed integer optimization problems, as well as mixed complementarity problems, stochastic optimization problems, and computable general equilibrium models. The complete list of available solvers are:
GAMS 2.50 is available for a number of environments, including personal computers, workstations, main-frames, and supercomputers. Some of the available platforms are:
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The GAMS Demo/Student Edition consists of a copy of the User's Guide (1998, 280 pages) and a demo edition of the GAMS software, which runs on all the platforms mentioned above available on CD or via ftp download. All solvers are available with the demo version. The demo version of the software contains all the features of the commercial version, and is limited only in the size of problems that can be solved. There is a limit of 300 rows, 300 column, and 2000 nonzero elements in the constraint matrix, of which 1000 can be 'nonlinear nonzeroes'. There is also a limit of 50 discrete variables.
Visit the GAMS Web Site, or contact GAMS at:
GAMS Development Corp., 1217 Potomac Street NW, Washington DC 20007. Phone: (202) 342 0180 Fax: (202) 342 0181 E-mail: sales@gams.com
GAMS: A User's Guide, boyd and fraser publishing, 1993.
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