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

Paula Carroll | 61728 | 104259 | 8.13054e-05 | easy | – | 3723497.591396 | irish-electricity.mps.gz |

Unit Commitment - Irish Test systems We submit a sample Unit Commitment test instance based on an Irish case study. We include a readme file, a solution file, and additional data so that users may generate further UC test instances.

Detailed explanation of the following tables can be found here.

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

Variables | 61728 | 52735 |

Constraints | 104259 | 82917 |

Binaries | 9888 | 9286 |

Integers | 0 | 0 |

Continuous | 51840 | 43449 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 8.13054e-05 | 1.07359e-04 |

Nonzeroes | 523257 | 469443 |

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

Total | 104259 | 82917 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 16041 | 0 |

Aggregations | 0 | 0 |

Precedence | 5216 | 8119 |

Variable Bound | 20624 | 18144 |

Set Partitioning | 0 | 0 |

Set Packing | 0 | 0 |

Set Covering | 9114 | 0 |

Cardinality | 4 | 0 |

Invariant Knapsack | 0 | 9527 |

Equation Knapsack | 0 | 0 |

Bin Packing | 279 | 1220 |

Knapsack | 0 | 5483 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 52981 | 40424 |

General Linear | 0 | 0 |

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 | 2.429752 | ||||

Constraint % | 0.00121 | 0.191223 | 0.00362 | 2.069540 | |

Variable % | 0.00379 | 0.145639 | 0.00569 | 0.910039 | |

Score | 0.508349 |

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 | 3723498 | 3723498 | 0 | 0 | 0 | - | 2018-10-13 | Solution found during MIPLIB2017 problem selection. |

The following instances are most similar to irish-electricity 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.

```
@CONFERENCE{Carroll_UC,
author = {Paula Carroll and Damian Flynn and Bernard Fortz and Alex Melhorn},
title = {{Sub-hour Unit Commitment MILP Model with Benchmark Problem Instances}},
booktitle = {Computational Science and Its Applications – ICCSA 2017},
year = {2017},
editor = {Osvaldo Gervasi and Beniamino Murgante and Sanjay Misra and Giuseppe Borruso and Carmelo M. Torre and Ana Maria A.C. Rocha
and David Taniar and Bernady O. Apduhan and Elena Stankova and Alfredo Cuzzocrea },
volume = {10405},
pages = {--},
address = {Trieste, Italy},
month = {July},
publisher = {Lecture Notes in Computer Science (LNCS)},
doi = {10.1007/978-3-319-62395-5},
note = { to appear},
}
```

Last Update Okt 02, 2019 by Gregor Hendel

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