GAMS — The Solver Manuals - Available Software

66 COIN-OR
This option causes GAMS names for the variables and equations to be loaded into Cbc. These names will
then be used for error messages, log entries, and so forth. Turning names off may help if memory is very
tight.
(default = 0)
reslim (real)
0 Do not load variable and equation names.
1 Load variable and equation names.
Maximum time in seconds.
(default = GAMS reslim)
writemps (string)
Write the problem formulation in MPS format. The parameter value is the name of the MPS file.
special (string)
This parameter let you specify CBC options which are not supported by the GAMS/CoinCBC interface.
The string value given to this parameter is split up into parts at each space and added to the array of
parameters given to CBC (in front of the -solve command). Hence, you can use it like the command line
parameters for the CBC standalone version.
LP Options
idiotcrash (integer)
This is a type of ‘crash’ which works well on some homogeneous problems. It works best on problems with
unit elements and right hand sides but will do something to any model. It should only be used before the
primal simplex algorithm.
A positive number determines the number of passes that idiotcrash is called.
(default = -1)
-1 Let CLP decide by itself whether to use it.
0 Switch this method off.
sprintcrash (integer)
For long and thin problems this method may solve a series of small problems created by taking a subset of
the columns. Cplex calls it ‘sifting’.
A positive number determines the number of passes that sprintcrash is called.
(default = -1)
-1 Let CLP decide by itself whether to use it.
0 Switch this method off.
sifting (integer)
Synonym for sprintcrash.
(default = -1)
crash (string)
Determines whether CLP should use a crash algorithm to find a dual feasible basis.
(default = off)
off Switch off the creation of dual feasible basis by the crash method.
on Switch on the creation of dual feasible basis by the crash method.