General Algebraic Modeling System - Gams

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GAMS Overview • Started as a Research Project at the World Bank 1976 • GAMS went commercial in 1987 • Opened European Office in Cologne, Germany 1996 • 10,000s of customers in over 100 countries 4
Basic Principles • Separation of model and solution methods •Models is a data base operator and/or object • Balanced mix of declarative and procedural approaches • Computing platform independence •Multiple model types, solvers and platforms 5
Page 1 and 2: General Algebraic Modeling System M
Page 3: Computation Past • Algorithm limi
Page 7 and 8: Supported Solvers 7
Page 9 and 10: Supported Platforms 9
Page 11 and 12: GAMS Implementation • Using the G
Page 13 and 14: Model m1.gms 13
Page 15 and 16: * min and max shipmenst option limc
Page 17 and 18: * min/max and nl obj Min/Max and NL
Page 19 and 20: * flexible demand parameter pbar(j)
Page 21 and 22: Summary Result 21
Page 23 and 24: CONOPT3 Performance 23
Page 25 and 26: Nonlinear equations: ai = à ∞,bi
Page 27 and 28: Definition of MPEC minimize f(x, y)
Page 29 and 30: MPEC Approaches •Implicit: min f(
Page 31 and 32: •Create the GAMS model as an MPEC
Page 33 and 34: •Find all or multiple equilibria
Page 35 and 36: Excel Data 35
Page 37 and 38: Excel Data 37
Page 39 and 40: E-mail Submission 39
Page 41 and 42: Job Info Via e-mail 41
Page 43 and 44: GAMS World Home Page 43
Page 45 and 46: MINLP World Home Page 45
Page 47 and 48: Performance Home Page 47
Page 49 and 50: Global World Home Page 49
Page 51 and 52: BARON BARON is a computational syst
Page 53 and 54: OQMS OQMS. This system combines exi
Page 55:
Contacting GAMS Development 55
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General Algebraic Modeling System - Gams

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