nj1

no_solution decomposition variable_bound set_partitioning mixed_binary

Submitter Variables Constraints Density Status Group Objective MPS File
Jonathan Eckstein 78084 97579 4.22004e-05 open nj NA nj1.mps.gz

Electoral district design with various levels of symmetry breaking constraints.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 78084 78084
Constraints 97579 97579
Binaries 14280 14280
Integers 0 0
Continuous 63804 63804
Implicit Integers 0 0
Fixed Variables 0 0
Nonzero Density 4.22004e-05 4.22004e-05
Nonzeroes 321540 321540
Constraint Classification Properties
Original Presolved
Total 97579 97579
Empty 0 0
Free 0 0
Singleton 0 0
Aggregations 0 0
Precedence 0 0
Variable Bound 52056 52056
Set Partitioning 607 607
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 44916 44916
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 1.113943
Constraint % 8.28149 8.28149 8.28149 8.28149
Variable % 8.33333 8.33333 8.33333 8.33333
Score 0.910964

Best Known Solution(s)

No solution available for nj1 .

Similar instances in collection

The following instances are most similar to nj1 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
nj2 open 85224 14280 0 70944 118975 364332 Jonathan Eckstein nj no_solution decomposition precedence variable_bound set_partitioning mixed_binary
nj3 open 85224 14280 0 70944 118986 377422 Jonathan Eckstein nj no_solution decomposition precedence variable_bound set_partitioning mixed_binary
bharat open 590519 122614 0 467905 1299953 3565460 Gavin Goodall 4193333.93287* numerics aggregations precedence variable_bound mixed_binary
neos-5273874-yomtsa open 136971 232 0 136739 486492 1955350 Hans Mittelmann neos-pseudoapplication-19 128.759451488657* aggregations variable_bound set_partitioning set_packing cardinality mixed_binary
maxgasflow easy 7437 2456 0 4981 7160 19717 G. Gamrath -44565819157.51 decomposition numerics aggregations variable_bound mixed_binary

Reference

No bibliographic information available

Last Update Apr 09, 2019 by Gregor Hendel
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