Submitter Variables Constraints Density Status Group Objective MPS File
F. Ortega, L. Wolsey 3040 1920 1.04167e-03 easy mc 1566 mc8.mps.gz

Fixed cost network flow problems

Imported from the MIPLIB2010 submissions.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 3040 3040
Constraints 1920 1920
Binaries 1520 1520
Integers 0 0
Continuous 1520 1520
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.00104167 0.00104167
Nonzeroes 6080 6080
Constraint Classification Properties
Original Presolved
Total 1920 1920
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 0 0
Precedence 0 0
Variable Bound 1520 1520
Set Partitioning 0 0
Set Packing 0 0
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 400 400
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 3.089552
Constraint % 0.0520833 0.0675217 0.0520833 4.79167
Variable % 0.0657895 0.0814332 0.0657895 4.86842
Score 0.819416

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 1566 1566 0 0 0 - 2018-10-11 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to mc8 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
mc7 3040 1520 0 1520 1920 6080 F. Ortega, L. Wolsey mc easy 3417
mc11 3040 1520 0 1520 1920 6080 F. Ortega, L. Wolsey mc easy 11689
beasleyC3 2500 1250 0 1250 1750 5000 F. Ortega, L. Wolsey beasley easy 754
p500x2988d 5976 2988 0 2988 3488 11952 MIPLIB submission pool pr_product easy 6
brasil 6612 3306 0 3306 3364 13224 MIPLIB submission pool easy 13655

Reference

No bibliographic information available

Last Update Nov 19, 2018 by Gregor Hendel
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