Submitter Variables Constraints Density Status Group Objective MPS File
R. O’Neill 25755 48939 1.01232e-04 easy 19635558.244 unitcal_7.mps.gz

California seven day unit commitment problem

Imported from MIPLIB2010.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 25755 23936
Constraints 48939 41871
Binaries 2856 2503
Integers 0 15
Continuous 22899 21418
Implicit Integers 0 15
Fixed Variables 0 0
Nonzero Density 0.000101232 0.000111470
Nonzeroes 127595 111718
Constraint Classification Properties
Original Presolved
Total 48939 41871
Empty 0 0
Free 0 0
Singleton 908 0
Aggregations 0 0
Precedence 13394 11446
Variable Bound 17182 14907
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 17455 15503
General Linear 0 15
Indicator 0 0

Structure

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

value min median mean max
Components 1.322219
Constraint % 0.00239 3.14872 3.40331 4.42072
Variable % 0.00817 3.10187 3.72519 4.10097
Score 0.606289

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 19635558 19635558 0 0 0e+00 - 2018-10-13 Solution found during MIPLIB2017 problem selection.
1 19635558 19635558 0 0 3e-07 - 2018-10-13 Solution imported from MIPLIB2010.

Similar instances in collection

The following instances are most similar to unitcal_7 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
gasprod2-2 29568 6826 0 22742 72728 280740 Andrew Stamps gasprod easy 1375631.66
b2c1s1 3872 288 0 3584 3904 11408 M. Vyve, Y. Pochet c1s1 hard 25687.90
b1c1s1 3872 288 0 3584 3904 11408 M. Vyve, Y. Pochet c1s1 hard 24544.25
a1c1s1 3648 192 0 3456 3312 10178 M. Vyve, Y. Pochet c1s1 easy 11503.44
a2c1s1 3648 192 0 3456 3312 10178 M. Vyve, Y. Pochet c1s1 easy 10889.14

Reference

No bibliographic information available

Last Update Nov 19, 2018 by Gregor Hendel
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