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Table 6 Results of the instances

From: Managing daily surgery schedules in a teaching hospital: a mixed-integer optimization approach

Instance

CPU time (s)

Total cost (€)

Integer variables

Continuous variables

Constraints

Nodes

Iterations

1

3.8

3,400

33

15

140

10,552

36,167

2

3.5

2,850

65

19

357

5,812

26,076

3

4.7

3,258

90

20

510

4,734

21,390

4

140

5,100

119

21

691

224,573

948,271

5

456.3

3,650

152

22

900

558,804

2,984,012

6

1,720.1

4,183

387

28

3,013

1213370

5,627,758