Submitter | Variables | Constraints | Density | Status | Group | Objective | MPS File |
---|---|---|---|---|---|---|---|

NEOS Server Submission | 30200 | 40698 | 1.7173e-03 | easy | neos-pseudoapplication-76 | -1524.33333333333 | ns1644855.mps.gz |

Instance coming from the NEOS Server with unknown application. Solved with Gurobi 4.5.1 on a 12-core Linux system in 1431.15 sec. Imported from MIPLIB2010.

Detailed explanation of the following tables can be found here.

Original | Presolved | |
---|---|---|

Variables | 30200 | 30199 |

Constraints | 40698 | 30598 |

Binaries | 10000 | 10000 |

Integers | 0 | 100 |

Continuous | 20200 | 20099 |

Implicit Integers | 0 | 100 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.0017173 | 0.0022733 |

Nonzeroes | 2110700 | 2100600 |

Original | Presolved | |
---|---|---|

Total | 50698 | 30598 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 20100 | 0 |

Aggregations | 0 | 0 |

Precedence | 99 | 0 |

Variable Bound | 10199 | 10298 |

Set Partitioning | 200 | 200 |

Set Packing | 0 | 0 |

Set Covering | 0 | 0 |

Cardinality | 0 | 0 |

Invariant Knapsack | 0 | 0 |

Equation Knapsack | 0 | 0 |

Bin Packing | 0 | 0 |

Knapsack | 0 | 0 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 20100 | 19900 |

General Linear | 0 | 200 |

Indicator | 0 | 0 |

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

Decomposed structure of original problem (dec-file)

Decomposed structure after trivial presolving (dec-file)

value | min | median | mean | max | |
---|---|---|---|---|---|

Components | 4.004321 | ||||

Constraint % | 0.00328 | 0.00334 | 0.00328 | 0.00656 | |

Variable % | 0.00662 | 0.00666 | 0.00662 | 0.00993 | |

Score | 0.337639 |

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 | -1524.333 | -1524.333 | 0 | 0 | 0 | - | 2018-10-13 | Solution found during MIPLIB2017 problem selection. |

1 | -1524.333 | -1524.333 | 0 | 0 | 0 | - | 2018-10-13 | Solution imported from MIPLIB2010. |

The following instances are most similar to ns1644855 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 |
---|---|---|---|---|---|---|---|---|---|---|---|

supportcase7 | easy | 138844 | 451 | 14 | 138379 | 6532 | 2845545 | Michael Winkler | – | -1132.223177 | benchmark benchmark_suitable precedence variable_bound invariant_knapsack mixed_binary |

neos-480878 | easy | 534 | 189 | 0 | 345 | 1321 | 44370 | NEOS Server Submission | neos-pseudoapplication-76 | 492.5144492879 | benchmark_suitable variable_bound set_partitioning set_packing invariant_knapsack mixed_binary |

dell | easy | 626 | 105 | 0 | 521 | 500 | 4580 | MIPLIB submission pool | – | Infeasible | infeasible aggregations precedence variable_bound mixed_binary |

neos-3048764-nadi | easy | 12360 | 9390 | 0 | 2970 | 3186 | 21867 | Jeff Linderoth | neos-pseudoapplication-43 | -3883988306.4 | decomposition numerics precedence variable_bound set_packing mixed_binary |

supportcase23 | open | 24275 | 6250 | 0 | 18025 | 40502 | 161525 | Michael Winkler | – | -12160.6593559088* | decomposition precedence mixed_binary |

```
@misc{neos,
key = {zzz neos},
note = {http://www.neos-server.org},
title = {{NEOS} {S}erver for {O}ptimization},
year = {2011}
}
```

Last Update 2024 by Julian Manns

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