PREDUPROW

Description

Presolve: Determines the type of duplicate rows to look for and eliminate when presolving a problem.

Type

Integer

Values

-1	Automatically determined.
0	Do not eliminate duplicate rows.
1	Eliminate only rows that are identical in all variables.
2	Same as option 1 plus eliminate duplicate rows with simple penalty variable expressions. (MIP only).
3	Same as option 2 plus eliminate duplicate rows with more complex penalty variable expressions. (MIP only).

Default value

-1

Note

Duplicate rows can also be disabled by clearing the corresponding bit of the PRESOLVEOPS integer control.

Affects routines