Submitter Variables Constraints Density Status Group Objective MPS File
Siemens 5885 2151 1.86774e-03 easy sct -230.9891623 sct2.mps.gz

Assembly line balancing for printed circuit board production

Imported from the MIPLIB2010 submissions.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 5885 3609
Constraints 2151 1606
Binaries 2872 2146
Integers 0 1
Continuous 3013 1462
Implicit Integers 0 1
Fixed Variables 1868 0
Nonzero Density 0.00186774 0.00346236
Nonzeroes 23643 20068
Constraint Classification Properties
Original Presolved
Total 2151 1606
Empty 0 0
Free 0 0
Singleton 136 0
Aggregations 0 0
Precedence 1504 1110
Variable Bound 0 0
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 506 490
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 3.018701
Constraint % 0.0622665 0.0662664 0.0622665 4.23412
Variable % 0.0552029 0.0569759 0.0552029 1.90450
Score 0.689994

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 -230.9892 -230.9892 0 0 0 - 2018-10-11 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to sct2 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
sct31 8515 5520 0 2995 3932 68453 Siemens sct open -29.317051745*
sct1 22886 10312 0 12574 12154 105571 Siemens sct open -184.285877549*
sct5 37265 23004 0 14261 13304 147037 Siemens sct open -228.1172303718*
sct32 9767 7728 0 2039 5440 109654 Siemens sct hard -17.8875590846509
gus-sch 5475 2736 2736 3 5984 33135 Alexandra M. Newman easy -1167

Reference

No bibliographic information available

Last Update Nov 19, 2018 by Gregor Hendel
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