Submitter Variables Constraints Density Status Group Objective MPS File
NEOS Server Submission 30200 40698 1.7173e-03 easy neos-pseudoapplication-76 -1524.33333333333 ns1644855.mps.gz

Instance coming from the NEOS Server with unknown application. Solved with Gurobi 4.5.1 on a 12-core Linux system in 1431.15 sec.

Imported from MIPLIB2010.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 30200 30199
Constraints 40698 30598
Binaries 10000 10000
Integers 0 100
Continuous 20200 20099
Implicit Integers 0 100
Fixed Variables 0 0
Nonzero Density 0.0017173 0.0022733
Nonzeroes 2110700 2100600
Constraint Classification Properties
Original Presolved
Total 50698 30598
Empty 0 0
Free 0 0
Singleton 20100 0
Aggregations 0 0
Precedence 99 0
Variable Bound 10199 10298
Set Partitioning 200 200
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 20100 19900
General Linear 0 200
Indicator 0 0

Structure

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

value min median mean max
Components 4.004321
Constraint % 0.00328 0.00334 0.00328 0.00656
Variable % 0.00662 0.00666 0.00662 0.00993
Score 0.337639

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
2 -1524.333 -1524.333 0 0 0 - 2018-10-13 Solution found during MIPLIB2017 problem selection.
1 -1524.333 -1524.333 0 0 0 - 2018-10-13 Solution imported from MIPLIB2010.

Similar instances in collection

The following instances are most similar to ns1644855 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
supportcase7 138844 451 14 138379 6532 2845540 Michael Winkler easy -1132.223177
neos-480878 534 189 0 345 1321 44370 NEOS Server Submission neos-pseudoapplication-76 easy 492.5144492879
dell 626 105 0 521 500 4580 MIPLIB submission pool easy Infeasible
neos-3048764-nadi 12360 9390 0 2970 3186 21867 Jeff Linderoth neos-pseudoapplication-43 easy -3883988306.4
supportcase23 24275 6250 0 18025 40502 161525 Michael Winkler open -12121.57006*

Reference

@misc{neos,
 key = {zzz neos},
 note = {http://www.neos-server.org},
 title = {{NEOS} {S}erver for {O}ptimization},
 year = {2011}
}

Last Update Nov 09, 2018 by Gregor Hendel
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