ns1644855

benchmark benchmark_suitable variable_bound set_partitioning mixed_binary general_linear

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 Status Variables Binaries Integers Continuous Constraints Nonz. Submitter Group Objective Tags
supportcase7 easy 138844 451 14 138379 6532 2845540 Michael Winkler -1132.223177 benchmark benchmark_suitable precedence variable_bound invariant_knapsack mixed_binary
neos-480878 easy 534 189 0 345 1321 44370 NEOS Server Submission neos-pseudoapplication-76 492.5144492879 benchmark_suitable variable_bound set_partitioning set_packing invariant_knapsack mixed_binary
dell easy 626 105 0 521 500 4580 MIPLIB submission pool Infeasible infeasible aggregations precedence variable_bound mixed_binary
neos-3048764-nadi easy 12360 9390 0 2970 3186 21867 Jeff Linderoth neos-pseudoapplication-43 -3883988306.4 decomposition numerics precedence variable_bound set_packing mixed_binary
supportcase23 open 24275 6250 0 18025 40502 161525 Michael Winkler -12121.57006* decomposition precedence mixed_binary

Reference

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

Last Update Mär 19, 2019 by Gregor Hendel
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