Submitter Variables Constraints Density Status Group Objective MPS File
MIPLIB submission pool 3321 6480 6.02228e-04 easy -13164 manna81.mps.gz

Imported from the MIPLIB2010 submissions.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 3321 3321
Constraints 6480 6480
Binaries 18 18
Integers 3303 3303
Continuous 0 0
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 0.000602228 0.000602228
Nonzeroes 12960 12960
Constraint Classification Properties
Original Presolved
Total 6480 6480
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 0 0
Precedence 0 0
Variable Bound 6480 6480
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 0 0
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 0.30103
Constraint % 100 100 100 100
Variable % 100 100 100 100
Score 0.00000

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 -13164 -13164 0 0 0 - 2018-10-11 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to manna81 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
sorrell8 2046 2046 0 0 18944 37888 Toni Sorrell independentset open -350*
sorrell7 2048 2048 0 0 78848 157696 Toni Sorrell independentset open -185*
sorrell3 1024 1024 0 0 169162 338324 Toni Sorrell independentset hard -16
z26 17937 17937 0 0 850513 1715610 Daniel Bienstock open -1101*
sorrell4 2048 2048 0 0 504451 1008900 Toni Sorrell independentset open -23*

Reference

No bibliographic information available

Last Update Nov 17, 2018 by Gregor Hendel
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