The NEOS Server offers the
solver for the solution of linear programming (LP) problems. Problems for
BDMLP can be submitted on NEOS in GAMS format.
GAMS/BDMLP is a free Simplex-based LP solver and is intended for small- to
medium-sized models. BDMLP can solve reasonably sized models as long as the
models are not too degenerate and are well-scaled.
GAMS/BDMLP was originally developed at the World Bank by T. Brooke, A. Drud,
and A. Meeraus and is now maintained by GAMS Development. Further
information on BDMLP can be found on the GAMS documentation
The user must submit a model in GAMS
format to solve an optimization 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
Examples of models in GAMS format can be found in the
GAMS model library.
By default, the NEOS Server 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 GAMS output
for further information.
You may optionally submit an options file if you wish to override the default parameter settings for the solver.
Currently, the NEOS Server can only use optfile=1 with GAMS input. Therefore, any model that specifies a different options file will not work as intended.
<modelname>.optfile = 1 ;
optfile = 1