sct1

decomposition aggregations precedence variable_bound invariant_knapsack knapsack mixed_binary general_linear

Submitter Variables Constraints Density Status Group Objective MPS File
Siemens 22886 12154 3.79538e-04 open sct -184.285877549* sct1.mps.gz

Assembly line balancing for printed circuit board production

Imported from MIPLIB2010.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 22886 14519
Constraints 12154 9176
Binaries 10312 7774
Integers 0 1
Continuous 12574 6744
Implicit Integers 0 1
Fixed Variables 6957 0
Nonzero Density 0.000379538 0.000679115
Nonzeroes 105571 90476
Constraint Classification Properties
Original Presolved
Total 12154 9176
Empty 8 0
Free 0 0
Singleton 976 0
Aggregations 0 1
Precedence 5640 4335
Variable Bound 3275 2665
Set Partitioning 0 0
Set Packing 0 0
Set Covering 0 0
Cardinality 0 0
Invariant Knapsack 1 1
Equation Knapsack 0 0
Bin Packing 0 0
Knapsack 4 4
Integer Knapsack 0 0
Mixed Binary 2250 2169
General Linear 0 1
Indicator 0 0

Structure

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

value min median mean max
Components 3.301030
Constraint % 0.0108980 0.0381675 0.0108980 4.89320
Variable % 0.0136836 0.0308036 0.0136836 3.07882
Score 0.761112

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
1 -184.2859 -184.2859 0 0 0 - 2018-10-10 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to sct1 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
sct2 easy 5885 2872 0 3013 2151 23643 Siemens sct -230.9891623 benchmark benchmark_suitable precedence invariant_knapsack knapsack mixed_binary general_linear
sct31 open 8515 5520 0 2995 3932 68453 Siemens sct -29.317051745* aggregations precedence invariant_knapsack knapsack mixed_binary general_linear
sct5 open 37265 23004 0 14261 13304 147037 Siemens sct -228.1172303718* decomposition aggregations precedence invariant_knapsack knapsack mixed_binary general_linear
sct32 hard 9767 7728 0 2039 5440 109654 Siemens sct -17.8875590846509 decomposition aggregations precedence set_partitioning set_covering invariant_knapsack knapsack mixed_binary general_linear
gus-sch easy 5475 2736 2736 3 5984 33135 Alexandra M. Newman -1167 decomposition aggregations precedence variable_bound set_packing set_covering cardinality invariant_knapsack integer_knapsack mixed_binary general_linear

Reference

No bibliographic information available

Last Update Mär 19, 2019 by Gregor Hendel
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