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Download Older GAMS Distributions

For further information please visit the distribution history and incremental update page.

Distributions 18.0 - 20.0 are available on request.

Installation

Please refer to the Windows Installation Notes or the UNIX Installation Notes for more information about the necessary steps to setup a GAMS system.

Without a valid GAMS license the system will operate as a free demo system with these limitations:

1. Model limits:
• Number of constraints: 300
• Number of variables: 300
• Number of nonzero elements: 2000 (of which 1000 nonlinear)
• Number of discrete variables: 50 (including semi continuous, semi integer and member of SOS-Sets)
2. Global solver limits:
   • Number of constraints: 10
   • Number of variables: 10

The GAMS log will indicate that your system runs in demo mode:

--- Job indus89 Start 09/22/10 09:06:38 WEX-VS8 23.5.2 x86/MS Windows
GAMS Rev 235  Copyright (C) 1987-2010 GAMS Development. All rights reserved
Licensee: GAMS Development Corporation, Washington, DC   G871201/0000CA-ANY
          Free Demo,  202-342-0180,  sales@gams.com,  www.gams.com   DC0000
--- Starting compilation

GAMS will terminate with a licensing error if you hit one of the limits above:

*** Status: Terminated due to a licensing error
***         Inspect listing file for more information