Submitter Variables Constraints Density Status Group Objective MPS File
Sean MacDermant 20503 13897 1.91798e-04 easy -46416168.298 bmoipr2.mps.gz

BMO IPR2 Logistics

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 20503 17265
Constraints 13897 12263
Binaries 8434 7616
Integers 0 0
Continuous 12069 9649
Implicit Integers 0 0
Fixed Variables 2420 0
Nonzero Density 0.000191798 0.000233010
Nonzeroes 54649 49333
Constraint Classification Properties
Original Presolved
Total 13897 12263
Empty 0 0
Free 0 0
Singleton 814 0
Aggregations 0 524
Precedence 0 0
Variable Bound 7659 7025
Set Partitioning 0 0
Set Packing 1939 1939
Set Covering 0 0
Cardinality 0 0
Invariant Knapsack 0 0
Equation Knapsack 0 0
Bin Packing 0 0
Knapsack 0 0
Integer Knapsack 0 0
Mixed Binary 3485 2775
General Linear 0 0
Indicator 0 0

Structure

Available nonzero structure and decomposition information. Further information can be found here.

value min median mean max
Components 3.433770
Constraint % 0.00815 0.0285081 0.0326184 0.0652369
Variable % 0.00975 0.0275927 0.0292640 0.0536507
Score 0.773448

Best Known Solution(s)

Find solutions below. Download the archive containing all solutions from the Download page.

ID Objective Exact Int. Viol Cons. Viol Obj. Viol Submitter Date Description
1 -46416168 -46415592 7.1e-06 0 1e-07 - 2018-10-12 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to bmoipr2 in the collection. This similarity analysis is based on 100 scaled instance features describing properties of the variables, objective function, bounds, constraints, and right hand sides.

Instance Variables Binaries Integers Continuous Constraints Nonz. Submitter Group Status Objective
app3 3080 100 0 2980 766 14707 Emilie Danna app easy 5.751714e+06
momentum1 5174 2349 0 2825 42680 103191 T. Koch momentum easy 1.091435e+05
sing326 55156 40010 0 15146 50781 268173 Daniel Espinoza sing hard 7.753675e+06
sing44 59708 43524 0 16184 54745 281260 Daniel Espinoza sing hard 8.128831e+06
supportcase25 6769 576 0 6193 6673 22825 Michael Winkler easy 4.829280e-02

Reference

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Last Update Nov 19, 2018 by Gregor Hendel
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