Initializing help system before first use

# DUALPERTURB

Description | Specifies the factor by which the problem will be perturbed prior to optimization by dual simplex. Note the interconnection to the AUTOPERTURB control. If AUTOPERTURB is set to 1, the decision whether to perturb or not is left to the Optimizer. When the problem is automatically perturbed in dual simplex, however, the value of DUALPERTURB will be used for perturbation.
Type | Double
Topic areas | LP, Simplex
Values |
-1 | The perturbation factor is determined automatically.
0 | No perturbation prior to optimization.
>0 | The perturbation factor.
Default value | -1
Affects routines | XPRSlpoptimize ( LPOPTIMIZE), XPRSmipoptimize ( MIPOPTIMIZE).
See also | AUTOPERTURB, PRIMALPERTURB.
Category | Control

Parent Topic Control Parameters

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