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

Serge Bisaillon | 7891 | 9095 | 2.34402e-03 | open | – | -2.48e+16* | cdma.mps.gz |

3G wireless multiplexing communication model Imported from MIPLIB2010.

Detailed explanation of the following tables can be found here.

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

Variables | 7891 | 5376 |

Constraints | 9095 | 7371 |

Binaries | 4235 | 2969 |

Integers | 0 | 0 |

Continuous | 3656 | 2407 |

Implicit Integers | 0 | 0 |

Fixed Variables | 1 | 0 |

Nonzero Density | 0.00234402 | 0.00300779 |

Nonzeroes | 168227 | 119188 |

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

Total | 9095 | 7371 |

Empty | 0 | 0 |

Free | 0 | 0 |

Singleton | 1368 | 0 |

Aggregations | 20 | 20 |

Precedence | 0 | 0 |

Variable Bound | 2667 | 2578 |

Set Partitioning | 0 | 0 |

Set Packing | 440 | 440 |

Set Covering | 300 | 0 |

Cardinality | 0 | 0 |

Invariant Knapsack | 300 | 422 |

Equation Knapsack | 0 | 0 |

Bin Packing | 300 | 211 |

Knapsack | 0 | 0 |

Integer Knapsack | 0 | 0 |

Mixed Binary | 3700 | 3700 |

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 | 1.707570 | ||||

Constraint % | 0.0271334 | 0.876679 | 0.040700 | 2.83544 | |

Variable % | 0.0557517 | 1.925290 | 0.241591 | 6.07694 | |

Score | 0.417547 |

Find solutions below. Download the archive containing all solutions from the Download page.

`## Warning in lapply(df["exactobjval"], as.numeric): NAs introduced by coercion`

ID | Objective | Exact | Int. Viol | Cons. Viol | Obj. Viol | Submitter | Date | Description |
---|---|---|---|---|---|---|---|---|

4 | -2.477848e+16 | 4.4e-06 | 0 | 1.481124 | Edward Rothberg | 2020-06-11 | Obtained with Gurobi 9.0 using the solution improvement heuristic | |

3 | -2.313854e+16 | 0.0e+00 | 0 | 0.806480 | Edward Rothberg | 2020-04-22 | Obtained with Gurobi 9.0 using the solution improvement heuristic | |

2 | -2.296610e+16 | 1.3e-06 | 0 | 2.141083 | Edward Rothberg | 2019-12-13 | Obtained with Gurobi 9.0 | |

1 | -2.122397e+16 | 0.0e+00 | 0 | 3400.750245 | - | 2018-10-12 | Solution found during MIPLIB2017 problem selection. |

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

maxgasflow | easy | 7437 | 2456 | 0 | 4981 | 7160 | 19717 | G. Gamrath | – | -44565819.31886 | decomposition numerics aggregations variable_bound mixed_binary |

neos-4333596-skien | easy | 1005 | 460 | 0 | 545 | 812 | 5811 | Jeff Linderoth | neos-pseudoapplication-43 | -14610731.01 | benchmark_suitable aggregations precedence variable_bound set_partitioning cardinality mixed_binary |

polygonpack3-15 | open | 44237 | 44207 | 0 | 30 | 144478 | 731949 | Antonio Frangioni | polygonpack | -55055595.32367724* | numerics precedence variable_bound set_packing invariant_knapsack mixed_binary |

lrn | easy | 7253 | 2455 | 0 | 4798 | 8491 | 46123 | MIPLIB submission pool | – | 44479255.12362 | numerics aggregations precedence variable_bound set_partitioning set_packing invariant_knapsack knapsack mixed_binary |

bmoipr2 | easy | 20503 | 8434 | 0 | 12069 | 13897 | 54649 | Sean MacDermant | – | -46416168.2981393 | decomposition numerics aggregations variable_bound set_packing mixed_binary |

`No bibliographic information available`

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