Submitter Variables Constraints Density Status Group Objective MPS File
Salim Haddadi 400 40 5e-02 easy f2gap 20772 f2gap40400.mps.gz

Restrictions of well-known hard generalized assignment problem instances (D10400,D20400,D40400,D15900,D30900,D60900,D201600,D401600,D801600)

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 400 400
Constraints 40 40
Binaries 400 400
Integers 0 0
Continuous 0 0
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.05 0.05
Nonzeroes 800 800
Constraint Classification Properties
Original Presolved
Total 40 40
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 0 0
Precedence 0 0
Variable Bound 0 0
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 40 1
Integer Knapsack 0 0
Mixed Binary 0 39
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 0.301030
Constraint % 37.5 37.5 37.5 37.5
Variable % 56.5 56.5 56.5 56.5
Score 0.163125

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 20772 20772 0 0 0 - 2018-10-13 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to f2gap40400 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
f2gap801600 1600 1600 0 0 80 3200 Salim Haddadi f2gap easy 86679
f2gap401600 1600 1600 0 0 40 3200 Salim Haddadi f2gap easy 82307
ic97_potential 728 450 73 205 1046 3138 L. Peeters easy 3942
f2gap201600 1600 1600 0 0 20 3200 Salim Haddadi f2gap easy 76453
icir97_potential 2112 1235 422 455 3314 9942 MIPLIB submission pool open 6325*

Reference

No bibliographic information available

Last Update Nov 09, 2018 by Gregor Hendel
generated with R Markdown
© 2018 by Konrad-Zuse-Zentrum für Informationstechnik Berlin (ZIB)
Imprint