symmetry breaking for MIP models
Decides whether MIP symmetry breaking reductions will be attempted during the preprocessing phase.
Purpose
Symmetry breaking
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Description
Decides whether symmetry breaking reductions will be automatically executed, during the preprocessing phase, in a MIP model. The default level, -1, allows CPLEX to choose the degree of symmetry breaking to apply. The value 0 (zero) turns off symmetry breaking. Levels 1 through 5 apply increasingly aggressive symmetry breaking.
Value | Meaning |
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-1 | Automatic: let CPLEX choose; default |
0 | Turn off symmetry breaking |
1 | Exert a moderate level of symmetry breaking |
2 | Exert an aggressive level of symmetry breaking |
3 | Exert a very aggressive level of symmetry breaking |
4 | Exert a highly aggressive level of symmetry breaking |
5 | Exert an extremely aggressive level of symmetry breaking |