Submitter Variables Constraints Density Status Group Objective MPS File
Gerald Gamrath 221438 129662 1.59934e-05 open supplynetworkplanning 951577637.7644* snp-04-052-052.mps.gz

Supply network planning problems.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 221438 185036
Constraints 129662 99960
Binaries 4546 4364
Integers 4546 4676
Continuous 212346 175996
Implicit Integers 0 312
Fixed Variables 1 0
Nonzero Density 1.59934e-05 2.08281e-05
Nonzeroes 459205 385241
Constraint Classification Properties
Original Presolved
Total 129662 99960
Empty 0 0
Free 0 0
Singleton 21459 0
Aggregations 20891 19155
Precedence 0 0
Variable Bound 10339 9903
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 70916 65116
General Linear 6057 5786
Indicator 0 0

Structure

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

value min median mean max
Components 4.280168
Constraint % 0.00100 0.00183 0.00100 15.70330
Variable % 0.00108 0.00158 0.00108 9.49041
Score 0.333674

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 951577638 0 0 7.1e-06 - 2018-10-13 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to snp-04-052-052 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
snp-10-052-052 549021 11059 11059 526903 320836 1138760 Gerald Gamrath supplynetworkplanning open 16136245760*
snp-06-004-052 328461 494 494 327473 183168 668716 Gerald Gamrath supplynetworkplanning open 1869531919.902*
snp-02-004-104 228350 167 167 228016 126512 463941 Gerald Gamrath supplynetworkplanning easy 586803238.657
snp-10-004-052 538777 815 815 537147 300348 1097780 Gerald Gamrath supplynetworkplanning open 5906642865.78*
gasprod2-1 29568 7389 0 22179 73448 282846 Andrew Stamps gasprod easy 1628548.2968

Reference

No bibliographic information available

Last Update Nov 19, 2018 by Gregor Hendel
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