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IAimmsMathProgramInfo::DoubleGeneralOption Enumeration

The DoubleGeneralOption enumeration describes all double-valued general solvers options in AIMMS.

enum DoubleGeneralOption {
  DOPT_solver_workspace = -1,
  DOPT_mip_relative_opt = -2,
  DOPT_mip_absolute_opt = -3,
  DOPT_mip_cutoff = -4,
  DOPT_MAX = 4
};
Members 
Description 
DOPT_solver_workspace = -1 
This option determines how much memory the solver may allocate as workspace (in Mb). If the Solver Workspace is 0 then the solver decides itself how much workspace will be used.
 
DOPT_mip_relative_opt = -2 
This option specifies the relative optimality tolerance for solving a MIP model. The solver should stop if the solver can guarantee that the current best solution is within 100 × MIP Relative Optimality Tolerance percent of the global optimum.
 
DOPT_mip_absolute_opt = -3 
This option specifies the absolute optimality tolerance for solving a MIP model. The solver should stop if the solver can guarantee that the current best solution is within MIP Absolute Optimality Tolerance of the global optimum.
 
DOPT_mip_cutoff = -4 
Cutoff value for the Branch-and-Bound method (MIP only). If the objective function is to be minimized, then the nodes corresponding to sub problems, for which the objective value is larger than Cutoff, are considered as not promising enough and the node is "cut off" the tree. If the objective function is to be maximized then the opposite action takes place: the node is cut off the tree if the objective function of the corresponding sub problem is smaller than Cutoff.

The default value of AOSI_NA_REP refers to -inf for minimization problems, and inf for maximization problems.
 
DOPT_MAX = 4 
Number of double-valued general solvers options in AIMMS. 

If the value of such an option is changed in AIMMS then the new value can be obtained via the GetChangedOptions method.

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