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

Jeff Linderoth | 1001000 | 2000 | 9.995e-04 | open | neos-pseudoapplication-77 | 400.0* | neos-3322547-alsek.mps.gz |

Detailed explanation of the following tables can be found here.

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

Variables | 1001000 | 1001000 |

Constraints | 2000 | 2000 |

Binaries | 1001000 | 1001000 |

Integers | 0 | 0 |

Continuous | 0 | 0 |

Implicit Integers | 0 | 0 |

Fixed Variables | 0 | 0 |

Nonzero Density | 0.0009995 | 0.0009995 |

Nonzeroes | 2001000 | 2001000 |

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

Total | 2000 | 2000 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 0 | 0 |

Aggregations | 0 | 0 |

Precedence | 0 | 0 |

Variable Bound | 0 | 0 |

Set Partitioning | 1000 | 1000 |

Set Packing | 0 | 0 |

Set Covering | 0 | 0 |

Cardinality | 0 | 0 |

Invariant Knapsack | 0 | 0 |

Equation Knapsack | 0 | 0 |

Bin Packing | 1000 | 1000 |

Knapsack | 0 | 0 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 0 | 0 |

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 | 3.000434 | ||||

Constraint % | 0.0500000 | 0.0500000 | 0.0500000 | 0.0500000 | |

Variable % | 0.0999001 | 0.0999001 | 0.0999001 | 0.0999001 | |

Score | 0.499500 |

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 | 3 | 400 | 400 | 0 | 0 | 0 | Edward Rothberg | 2020-04-22 | Obtained with Gurobi 9.0 using the solution improvement heuristic |

3 | 2 | 401 | 0 | 0 | 0 | Edward Rothberg | 2019-12-13 | Obtained with Gurobi 9.0 | |

2 | 1 | 404 | 404 | 0 | 0 | 0 | - | 2018-10-15 | Solution found during MIPLIB2017 problem selection. |

The following instances are most similar to neos-3322547-alsek 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 |
---|---|---|---|---|---|---|---|---|---|---|---|

supportcase18 | easy | 13410 | 13410 | 0 | 0 | 240 | 28920 | Michael Winkler | -- | 48 | benchmark binary benchmark_suitable set_partitioning binpacking |

neos-2991472-kalu | open | 12105 | 12096 | 0 | 9 | 18170 | 13709358 | Jeff Linderoth | neos-pseudoapplication-77 | 12* | set_packing set_covering invariant_knapsack binpacking knapsack mixed_binary |

splice1k1 | hard | 3253 | 3252 | 1 | 0 | 6505 | 1761016 | Gleb Belov | splice | -394 | benchmark benchmark_suitable set_covering binpacking general_linear |

k1mushroom | easy | 8211 | 8210 | 1 | 0 | 16419 | 1697946 | Gleb Belov | k1mushroom | -3288 | benchmark benchmark_suitable set_covering binpacking general_linear |

proteindesign122trx11p8 | easy | 127326 | 127248 | 78 | 0 | 254 | 503427 | Gleb Belov | proteindesign | 1747 | benchmark benchmark_suitable set_partitioning general_linear |

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Last Update Mai 20, 2021 by Philipp Wellner

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