CPLEX 11

CPLEX 11 28implbd (integer)Determines whether or not implied bound cuts should be generated during optimization.(default = 0)-1 Do not generate implied bound cuts0 Determined automatically1 Generate implied bound cuts moderately2 Generate implied bound cuts aggressivelyinteractive (integer)When set to yes, options can be set interactively after interrupting Cplex with a Control-C. Options areentered just as if they were being entered in the cplex.opt file. Control is returned to Cplex by enteringcontinue. The optimization can be aborted by entering abort. This option can only be used when runningfrom the command line.(default = 0)intsollim (integer)This option limits the MIP optimization to finding only this number of mixed integer solutions beforestopping.(default = large)itlim (integer)The iteration limit option sets the maximum number of iterations before the algorithm terminates, withoutreaching optimality. This Cplex option overrides the GAMS IterLim option. Any non-negative integer valueis valid.(default = GAMS IterLim)lbheur (integer)This parameter lets you control whether Cplex applies a local branching heuristic to try to improve newincumbents found during a MIP search. By default, this parameter is off. If you turn it on, Cplex willinvoke a local branching heuristic only when it finds a new incumbent. If Cplex finds multiple incumbentsat a single node, the local branching heuristic will be applied only to the last one found.(default = 0)0 Off1 Apply local branching heuristic to new incumbentlpmethod (integer)Specifies which LP algorithm to use. If left at the default value (0 for automatic), and a primal-feasiblebasis is available, primal simplex will be used. If no primal-feasible basis is available, and threads is equalto 1, dual simplex will be used. If threads is greater than 1 and no primal-feasible basis is available, theconcurrent option will be used.Sifting may be useful for problems with many more variables than equations.The concurrent option runs multiple methods in parallel (the parallel option is separately licensed). Thefirst thread uses dual simplex. The second thread uses barrier (if licensed). The next thread uses primalsimplex. Remaining threads are used by the barrier run. The solution is returned by first method to finish.(default = 0)0 Automatic1 Primal Simplex2 Dual Simplex3 Network Simplex