The NEOS Server offers the
solver for the solution of linear programming (LP) problems in
GAMS/BDMLP is a free Simplex-based LP solver that comes with any
GAMS system and is intended for small to medium sized models. GAMS/BDMLP
was originally developed at the World Bank by T. Brooke, A. Drud, and
A. Meeraus and is now maintained by GAMS Development. BDMLP can solve
reasonably sized models as long as the models are not too degenerate and
Using the NEOS Server with GAMS/BDMLP
The user must submit a model in GAMS
format to solve a linear programming problem. For security purposes, the model
submitted must adhere to the following conventions:
If you are unfamiliar with GAMS, the GAMS Documentation includes a GAMS Tutorial and User's Guide.
Examples of models in GAMS format can be found in the
GAMS model library and an
is also available.
- It must be self-contained, i.e., no $include or $batinclude statements.
- It may not execute external programs, i.e., no $call or execute statements.
- It may not create files, i.e., no put files or $echo statements.
The NEOS Server initially limits the amount of output generated in the
listing file by turning off the symbol and unique element list, symbol
cross references, and restricting the rows and columns listed to zero.
This behavior can be changed by specifying the appropriate options
in the model file. See the
documentation on the
modeling language for further information.