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

R. O'Neill | 25755 | 48939 | 1.01232e-04 | easy | -- | 19635558.244 | unitcal_7.mps.gz |

California seven day unit commitment problem

Imported from MIPLIB2010.

Detailed explanation of the following tables can be found here.

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

Variables | 25755 | 23936 |

Constraints | 48939 | 41871 |

Binaries | 2856 | 2503 |

Integers | 0 | 15 |

Continuous | 22899 | 21418 |

Implicit Integers | 0 | 15 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.000101232 | 0.000111470 |

Nonzeroes | 127595 | 111718 |

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

Total | 48939 | 41871 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 908 | 0 |

Aggregations | 0 | 0 |

Precedence | 13394 | 11446 |

Variable Bound | 17182 | 14907 |

Set Partitioning | 0 | 0 |

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 | 17455 | 15503 |

General Linear | 0 | 15 |

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 | 1.322219 | ||||

Constraint % | 0.00239 | 3.14872 | 3.40331 | 4.42072 | |

Variable % | 0.00817 | 3.10187 | 3.72519 | 4.10097 | |

Score | 0.606289 |

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 | 2 | 19635558 | 19635558 | 0 | 0 | 0e+00 | - | 2018-10-13 | Solution found during MIPLIB2017 problem selection. |

1 | 1 | 19635558 | 19635558 | 0 | 0 | 3e-07 | - | 2018-10-13 | Solution imported from MIPLIB2010. |

The following instances are most similar to unitcal_7 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 |
---|---|---|---|---|---|---|---|---|---|---|---|

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 |

b2c1s1 | hard | 3872 | 288 | 0 | 3584 | 3904 | 11408 | M. Vyve, Y. Pochet | c1s1 | 25687.9 | aggregations variable_bound mixed_binary |

b1c1s1 | easy | 3872 | 288 | 0 | 3584 | 3904 | 11408 | M. Vyve, Y. Pochet | c1s1 | 24544.25 | benchmark benchmark_suitable aggregations variable_bound mixed_binary |

a1c1s1 | easy | 3648 | 192 | 0 | 3456 | 3312 | 10178 | M. Vyve, Y. Pochet | c1s1 | 11503.444125 | benchmark_suitable aggregations variable_bound mixed_binary |

a2c1s1 | easy | 3648 | 192 | 0 | 3456 | 3312 | 10178 | M. Vyve, Y. Pochet | c1s1 | 10889.137625 | benchmark_suitable aggregations variable_bound mixed_binary |

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Last Update Mai 20, 2021 by Philipp Wellner

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