MIP probing level
Sets the amount of probing on variables to be performed before MIP branching.
Purpose
MIP probing level
| API | Parameter Name | Name prior to V12.6.0 |
|---|---|---|
| C | CPXPARAM_MIP_Strategy_Probe | CPX_PARAM_PROBE |
| C++ | IloCplex::Param::MIP::Strategy::Probe | Probe (int) |
| OPL | probe | |
| Interactive | mip strategy probe | mip strategy probe |
| Identifier | 2042 | 2042 |
Description
Sets the amount of probing on variables to be performed before MIP branching. Higher settings perform more probing. Probing can be very powerful but very time-consuming at the start. Setting the parameter to values above the default of 0 (automatic) can result in dramatic reductions or dramatic increases in solution time, depending on the model.
| Value | Meaning |
|---|---|
| -1 | No probing |
| 0 | Automatic: let CPLEX choose; default |
| 1 | Moderate probing level |
| 2 | Aggressive probing level |
| 3 | Very aggressive probing level |