CPLEX 11

CPLEX 11 433 Network optimizer followed by dual simplex4 Barrier with crossover5 Siftingsubmipnodelim (integer)Controls the number of nodes explored in an RINS subMIP. See option rinsheur.(default = 500)symmetry (integer)Determines whether symmetry breaking cuts may be added, during the preprocessing phase, to a MIPmodel.(default = -1)-1 Automatic0 Turn off symmetry breaking1 Moderate level of symmetry breaking2 Aggressive level of symmetry breaking3 Very aggressive level of symmetry breaking4 Highly aggressive level of symmetry breaking5 Extremely aggressive level of symmetry breakingthreads (integer)Default number of parallel threads allowed for any solution method.(default = 1)tilim (real)The time limit setting determines the amount of time in seconds that Cplex will continue to solve a problem.This Cplex option overrides the GAMS ResLim option. Any non-negative value is valid.(default = GAMS ResLim)trelim (real)Sets an absolute upper limit on the size (in megabytes) of the branch and cut tree. If this limit is exceeded,Cplex terminates optimization.(default = 1e+075)tuning (string)Invokes the Cplex parameter tuning tool. The mandatory value following the keyword specifies a GAMS/Cplexoption file. All options found in this option file will be used but not modified during the tuning. A sequenceof file names specifying existing problem files may follow the option file name. The files can bein LP, MPS or SAV format. Cplex will tune the parameters either for the problem provided by GAMS(no additional problem files specified) or for the suite of problems listed after the GAMS/Cplex option filename without considering the problem provided by GAMS (use option writesav to create a SAV file of theproblem provided by GAMS and include this name in the list of problems). The result of such a run is theupdated GAMS/Cplex option file with a tuned set of parameters. The solver and model status returned toGAMS will be NORMAL COMPLETION and NO SOLUTION. Tuning is incompatible with the BCH facility andother advanced features of GAMS/Cplex.tuningdisplay (integer)Specifies the level of information reported by the tuning tool as it works.(default = 1)0 Turn off display