ILOG CPLEX 11.0 Parameters Reference Manual > > Alphabetic List of Parameters > MIQCP strategy switch |
MIQCP strategy switch |
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C Name
CPX_PARAM_MIQCPSTRAT
C++ Name
MIQCPStrat
Java Name
MIQCPStrat
.NET Name
MIQCPStrat
InteractiveOptimizer
mip strategy miqcpstrat
Identifier
2110
Description
Sets the strategy that CPLEX uses to solve a quadratically constrained mixed integer program (MIQCP).
This parameter controls how MIQCPs ( that is, mixed integer programs with one or more constraints including quadratic terms) are solved. For more detail about the types of quadratically constrained models that CPLEX solves, see Identifying a Quadratically Constrained Program (QCP) in the CPLEX User's Manual.
At the default setting of 0 (zero), CPLEX automatically chooses a strategy.
When you set this parameter to the value 1 (one), you tell CPLEX to solve a QCP relaxation of the model at each node.
When you set this parameter to the value 2, you tell CPLEX to attempt to solve an LP relaxation of the model at each node.
For some models, the setting 2 may be more effective than 1 (one). You may need to experiment with this parameter to determine the best setting for your model.
Values
Value |
Meaning |
---|---|
0 |
Automatic: let CPLEX choose; default |
1 |
Solve a QCP node relaxation at each node |
2 |
Solve an LP node relaxation at each node |
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