MaxCut instances generated by Christoph Helmberg and Franz Rendl (2000) using the machine independent graph generator ``rudy'' written by G. Rinaldi. The precise calls to ``rudy'' can be obtained from the original article.

The first 21 graphs have 800 nodes. More precisely:

G43 to G54 are again constructed using the same types.

Download links: .mc version, .bq version

The first 21 graphs have 800 nodes. More precisely:

- Graphs G1 to G5 are random graphs with unit weights and a density of 6%.
- G6 to G10 are the same graphs with random edge weights from {-1, 1}.
- G11 to G13 are toroidal grids with random edge weights from {-1, 1}.
- G14 to G17 are composed from the union of two (almost maximal) planar graphs with unit weights.
- G18 to G21 are the same graphs with random edge weights from {-1, 1}.

G43 to G54 are again constructed using the same types.

Download links: .mc version, .bq version

Instance | G_27 |

|V| | 2000 |

|E| | 19990 |

dim(Q) | 2000 |

nz(Q>) | 19990 |

nz(Diag(Q)) | 1840 |

OSV | n/a |

Eigenvalues (min, max) | -18.9903, 17.9369 |

Known correspondences | - |

A visualisation of the instance, created with OGDF (click to enlarge).

A plot showing the frequency of edge weights, for a high-level overview of the edge weight distributions (click to enlarge).