scale parameter for subMIPs
Decides how to scale the problem matrix when CPLEX solves a subMIP during MIP optimization.
Purpose
Parameter to scale the problem matrix when CPLEX solves a subMIP during MIP optimization
|
Description
This parameter determines how CPLEX should scale the matrix of a subMIP of a mixed integer program (MIP). For a definition of subMIP and for a list of conditions in which CPLEX solves a subMIP, see the topic What is a subMIP? in the CPLEX User's Manual.
Tip: This rarely used parameter is helpful only in rare "corner" cases
where there is clear evidence that the default scaling value
is really inappropriate for this particular problem.
See the documentation of these other subMIP parameters
for further instructions that you can impose when CPLEX solves a subMIP:
| Value | Meaning |
|---|---|
| -1 | No scaling |
| 0 | Equilibration scaling; default |
| 1 | More aggressive scaling |