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GAMSCHK is a program developed at Texas A&M University that is designed to aid users who wish to examine empirical GAMS models for possible flaws. GAMSCHK will:
| • | List coefficients for user selected equations and/or variables. |
| • | List the characteristics of selected groups of variables and/or equations. |
| • | List the characteristics of equation and variable blocks. |
| • | Examine a GAMS model to see whether any variables and equations contain specification errors. |
| • | Generate schematics depicting the characteristics of coefficients by variable and equation blocks. |
| • | Generate a schematic for small GAMS models or portions of larger models depicting the location of coefficients by sign and magnitude. |
| • | Reconstruct the reduced cost of variables and the activity within equations after a model solution. |
| • | Help resolve problems with unbounded or infeasible models. |
GAMSCHK does not actually solve the problem but rather requires other solvers to solve the problem then saves the basis information. It will work with LP, MIP, RMIP, NLP, MCP, DNLP, RMINLP, and MINLP model types. The manual is on GAMSCHK.pdf.
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