neos-2294525-abba

decomposition precedence set_partitioning cardinality mixed_binary

Submitter	Variables	Constraints	Density	Status	Group	Objective	MPS File
Jeff Linderoth	10842	11122	6.63517e-04	easy	neos-pseudoapplication-46	321.1522319	neos-2294525-abba.mps.gz

Solved with COPT 7.0 using up to 12 threads in less than 30 minutes.

Location of instance in collection

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
	Original	Presolved
Variables	10842	10842
Constraints	11122	11122
Binaries	10086	10086
Integers	0	0
Continuous	756	756
Implicit Integers	0	0
Fixed Variables	0	0
Nonzero Density	0.000663517	0.000663517
Nonzeroes	80010	80010

Constraint Classification Properties
	Original	Presolved
Total	11122	11122
Empty	0	0
Free	0	0
Singleton	0	0
Aggregations	0	0
Precedence	252	252
Variable Bound	0	0
Set Partitioning	52	52
Set Packing	0	0
Set Covering	0	0
Cardinality	240	240
Invariant Knapsack	0	0
Equation Knapsack	0	0
Bin Packing	0	0
Knapsack	0	0
Integer Knapsack	0	0
Mixed Binary	10578	10578
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	0.845098
Constraint %		16.6067	16.6067	16.6067	16.6067
Variable %		16.6667	16.6667	16.6667	16.6667
Score	0.830336

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	321.1522	156.1773	0	0	0	Yuji Shinano	2019-06-11	Solved using FiberXpress (M620v3, 20 cores but 16 solver threads)
1	321.1522	321.1522	0	0	0	-	2018-10-16	Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to neos-2294525-abba 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
ns1905797	open	18192	17676	4	512	51884	239700	NEOS Server Submission	neos-pseudoapplication-102		no_solution aggregations precedence variable_bound set_partitioning cardinality mixed_binary general_linear
neos-1456979	easy	4605	4245	180	180	6770	36440	NEOS Server Submission	neos-pseudoapplication-102	176	benchmark decomposition benchmark_suitable variable_bound set_partitioning set_packing cardinality knapsack mixed_binary general_linear
neos-5266653-tugela	open	23310	22662	0	648	23458	171534	Hans Mittelmann	neos-pseudoapplication-102	65505.2005752763*	decomposition precedence set_partitioning cardinality binpacking knapsack mixed_binary
neos-5221106-oparau	open	25445	25120	0	325	13897	245756	Hans Mittelmann	neos-pseudoapplication-46	52.66999999999962*	precedence variable_bound set_partitioning cardinality knapsack mixed_binary
neos-5260764-orauea	hard	12940	12580	0	360	12304	82620	Hans Mittelmann	neos-pseudoapplication-102	82593.16768840607	decomposition variable_bound set_partitioning cardinality binpacking knapsack mixed_binary

Reference

No bibliographic information available