gasprod1-1

numerics aggregations precedence variable_bound invariant_knapsack binpacking knapsack mixed_binary

Submitter Variables Constraints Density Status Group Objective MPS File
Andrew Stamps 10920 27695 6.65769e-04 open gasprod 291.5247315909* gasprod1-1.mps.gz

Production planning model for an industrial gas process. Three instances of the model included.

Instance Statistics

Detailed explanation of the following tables can be found here.

Size Related Properties
Original Presolved
Variables 10920 7594
Constraints 27695 15684
Binaries 4053 2174
Integers 0 0
Continuous 6867 5420
Implicit Integers 0 0
Fixed Variables 819 0
Nonzero Density 0.000665769 0.000835486
Nonzeroes 201348 99510
Constraint Classification Properties
Original Presolved
Total 27695 15684
Empty 626 0
Free 0 0
Singleton 860 0
Aggregations 1360 688
Precedence 3298 2624
Variable Bound 4226 2837
Set Partitioning 0 0
Set Packing 0 0
Set Covering 0 0
Cardinality 0 0
Invariant Knapsack 4067 2336
Equation Knapsack 0 0
Bin Packing 3191 1560
Knapsack 346 317
Integer Knapsack 0 0
Mixed Binary 9721 5322
General Linear 0 0
Indicator 0 0

Structure

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

value min median mean max
Components 2.517196
Constraint % 0.0064900 0.199558 0.0064900 27.5217
Variable % 0.0207727 0.166277 0.0207727 16.1197
Score 0.581327

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
1 291.5247 0 1e-06 0 - 2018-10-10 Solution found during MIPLIB2017 problem selection.

Similar instances in collection

The following instances are most similar to gasprod1-1 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
gasprod1-2 easy 10752 3716 0 7036 27169 200460 Andrew Stamps gasprod 983.039488258 numerics aggregations precedence variable_bound invariant_knapsack binpacking knapsack mixed_binary
gasprod1-3 easy 10752 3717 0 7035 27169 200463 Andrew Stamps gasprod 2310.0993127 numerics aggregations precedence variable_bound invariant_knapsack binpacking knapsack mixed_binary
gasprod2-2 easy 29568 6826 0 22742 72728 280740 Andrew Stamps gasprod 1375631.6625 numerics aggregations precedence variable_bound set_packing invariant_knapsack binpacking mixed_binary
neos-4358725-tagus open 11494 4898 0 6596 22777 59925 Jeff Linderoth neos-pseudoapplication-57 4206.140099965* numerics aggregations precedence variable_bound set_partitioning invariant_knapsack mixed_binary general_linear
unitcal_7 easy 25755 2856 0 22899 48939 127595 R. O’Neill 19635558.244 benchmark benchmark_suitable precedence variable_bound mixed_binary general_linear

Reference

No bibliographic information available

Last Update Mär 19, 2019 by Gregor Hendel
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