problem.getglobal

Purpose

Retrieves global information about a problem. It must be called before problem.mipoptimize if the presolve option is used.

Synopsis

problem.getglobal (qgtype, mgcols, dlim, qstype, msstart, mscols, dref)

Arguments

qgtype

Character array where the entity types will be returned. The types will be one of:

B	binary variables;
I	integer variables;
P	partial integer variables;
S	semi-continuous variables;
R	semi-continuous integer variables.

mgcols

Array where the column indices of the global entities will be returned.

dlim

Array where the limits for the partial integer variables and lower bounds for the semi-continuous and semi-continuous integer variables will be returned (any entries in the positions corresponding to binary and integer variables will be meaningless).

qstype

Character array where the set types will be returned. The set types will be one of:

1	SOS1 type sets;
2	SOS2 type sets.

msstart

Array where the offsets into the mscols and dref arrays indicating the start of the sets will be returned. This array must be of length SETMEMBERS+1: the final element contains the length of the mscols and dref arrays.

mscols

Array of length SETMEMBERS where the columns in each set will be returned.

dref

Array of length SETMEMBERS where the reference row entries for each member of the sets will be returned.

Example

The following obtains the SOS information:

qstype = []
mstart = []
mscols = []
dref   = []
p.getglobal (None, None, None, qstype, mstart, mscols, dref)

Further information

All arguments may be None if not required.

Contents

Index

Glossary

Search Results

problem.getglobal

problem.getglobal