uc720-7-4-4-8

infeasible numerics aggregations precedence variable_bound set_partitioning set_packing cardinality invariant_knapsack binpacking mixed_binary

Submitter	Variables	Constraints	Density	Status	Group	Objective	MPS File
Juan Javier Domínguez Moreno	1405278	4308353	1.95829e-06	easy	–	Infeasible	uc720-7-4-4-8.mps.gz

Margin maximization at unit commitment for several hydropower, pumping and thermal units

Location of instance in collection

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
	Original	Presolved
Variables	1405278	1294772
Constraints	4308353	3672550
Binaries	269009	254570
Integers	0	0
Continuous	1136269	1040202
Implicit Integers	0	0
Fixed Variables	29557	0
Nonzero Density	1.95829e-06	2.24198e-06
Nonzeroes	11856400	10660900

Constraint Classification Properties
	Original	Presolved
Total	4308353	3672550
Empty	82072	0
Free	0	0
Singleton	150964	0
Aggregations	23790	27389
Precedence	455656	335603
Variable Bound	2256335	2067180
Set Partitioning	8361	12680
Set Packing	8628	8627
Set Covering	28112	0
Cardinality	20160	12241
Invariant Knapsack	0	28112
Equation Knapsack	0	0
Bin Packing	1442	1442
Knapsack	0	0
Integer Knapsack	0	0
Mixed Binary	1272833	1179276
General Linear	0	0
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
Constraint %
Variable %
Score

Best Known Solution(s)

No solution available for uc720-7-4-4-8 .

Similar instances in collection

The following instances are most similar to uc720-7-4-4-8 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
bharat	open	590519	122614	467905	1299953	3565462	Gavin Goodall	–	4039608.50665507*	numerics aggregations precedence variable_bound mixed_binary
nj3	open	85224	14280	70944	118986	377422	Jonathan Eckstein	nj		no_solution decomposition precedence variable_bound set_partitioning mixed_binary
nj2	open	85224	14280	70944	118975	364332	Jonathan Eckstein	nj		no_solution decomposition precedence variable_bound set_partitioning mixed_binary
nj1	open	78084	14280	63804	97579	321540	Jonathan Eckstein	nj		no_solution decomposition variable_bound set_partitioning mixed_binary
minutedispatchstrategy	open	41761	20156	21605	80194	239480	Mark Husted	–	3109.903477759654*	numerics precedence variable_bound invariant_knapsack mixed_binary

Reference

No bibliographic information available