network primal feasibility tolerance
Specifies feasibility tolerance for network primal optimization. The feasibility tolerance specifies the degree to which the flow value of a model may violate its bounds.
Purpose
Feasibility tolerance for network primal optimization
| API | Parameter Name | Name prior to V12.6.0 |
|---|---|---|
| C | CPXPARAM_Network_Tolerances_Feasibility | CPX_PARAM_NETEPRHS |
| C++ | IloCplex::Param::Network::Tolerances::Feasibility | NetEpRHS (double) |
| OPL | neteprhs | |
| Interactive | network tolerances feasibility | network tolerances feasibility |
| Identifier | 5003 | 5003 |
Description
Specifies feasibility tolerance for network primal optimization. The feasibility tolerance specifies the degree to which the flow value of a model may violate its bounds. This tolerance influences the selection of an optimal basis and can be reset to a higher value when a problem is having difficulty maintaining feasibility during optimization. You may also wish to lower this tolerance after finding an optimal solution if there is any doubt that the solution is truly optimal. If the feasibility tolerance is set too low, CPLEX may falsely conclude that a problem is infeasible. If you encounter reports of infeasibility during Phase II of the optimization, a small adjustment in the feasibility tolerance may improve performance.
Values
Any number from 1e-11 to 1e-1; default: 1e-6.