unitcal_7

benchmark benchmark_suitable precedence variable_bound mixed_binary general_linear

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.

Location of instance in collection

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.

Nonzero entries of original problem

Nonzero entries after trivial presolving

Decomposed structure of original problem (dec-file)

Decomposed structure after trivial presolving (dec-file)

	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	Status	Variables	Binaries	Continuous	Constraints	Nonz.	Submitter	Group	Objective	Tags
gasprod2-2	easy	29568	6826	22742	72728	280740	Andrew Stamps	gasprod	1375631.6625	numerics aggregations precedence variable_bound set_packing invariant_knapsack binpacking mixed_binary
b2c1s1	easy	3872	288	3584	3904	11408	M. Vyve, Y. Pochet	c1s1	25687.9	aggregations variable_bound mixed_binary
b1c1s1	easy	3872	288	3584	3904	11408	M. Vyve, Y. Pochet	c1s1	24544.25	benchmark benchmark_suitable aggregations variable_bound mixed_binary
a1c1s1	easy	3648	192	3456	3312	10178	M. Vyve, Y. Pochet	c1s1	11503.444125	benchmark_suitable aggregations variable_bound mixed_binary
a2c1s1	easy	3648	192	3456	3312	10178	M. Vyve, Y. Pochet	c1s1	10889.137625	benchmark_suitable aggregations variable_bound mixed_binary

Reference

No bibliographic information available