ILOG CPLEX 11.0 Parameters Reference Manual > > Alphabetic List of Parameters > Node presolve switch

C Name

CPX_PARAM_PRESLVND

C++ Name

PreslvNd

Java Name

PreslvNd

.NET Name

PreslvNd

InteractiveOptimizer

mip strategy presolvenode

Identifier

2037

Description

Decides whether node presolve should be performed at the nodes of a mixed integer programming (MIP) solution. Node presolve can significantly reduce solution time for some models. The default setting is generally effective at deciding whether to apply node presolve, although runtimes can be reduced for some models by the user turning node presolve off.

Values

Value 
Meaning 
-1 
No node presolve 
Automatic: let CPLEX choose; default 
Force presolve at nodes 
Perform probing on integer-infeasible variables