ILOG CPLEX 11.0 Parameters Reference Manual > > Alphabetic List of Parameters > Simplex perturbation switch |
Simplex perturbation switch |
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C Name
CPX_PARAM_PERIND
(int
)
C++ Name
PerInd
(bool
)
Java Name
PerInd
.NET Name
PerInd
InteractiveOptimizer
simplex perturbation
Identifier
1027
Description
Decides whether to perturb problems.
Setting this parameter to 1 (one) causes all problems to be automatically perturbed as optimization begins. A setting of 0 (zero) allows CPLEX to decide dynamically, during solution, whether progress is slow enough to merit a perturbation. The situations in which a setting of 1 (one) helps are rare and restricted to problems that exhibit extreme degeneracy.
Values
Value |
bool |
Symbol |
Meaning |
---|---|---|---|
0 |
false | CPX_OFF |
Automatic: let CPLEX choose; default |
1 |
true | CPX_ON |
Turn on perturbation from beginning |
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