What are the default values for the CPLEX options?

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The default values for the CPLEX options depend on the version and platform of the software. However, some of the commonly used default values are:

• Dual simplex method for LP problems
• Primal simplex method for QP and MIP problems
• Barrier method for convex QP and CONICQP problems
• Emphasis on feasibility for MIP problems
• Automatic selection of primal or dual algorithm for MIP problems
• Matrix form of the model for LP and QP problems
• Sparse form of the model for MIP problems
• Feasibility tolerance of 1e-6
• Optimality tolerance of 1e-6
• Iteration limit of 1000000
• Maximum CPU time of 1e+75 seconds

It is important to note that these default values may not be optimal for all problems and users may need to adjust them to achieve better performance or accuracy.