| Name | ofi |
| Download | ofi.mps.gz |
| Solution | ofi.sol.gz |
| Set Membership | Unstable |
| Problem Status | Easy |
| Problem Feasibility | Feasible |
| Originator/Contributor | L. Poderico |
| Rows | 422587 |
| Cols | 420434 |
| Num. non-zeros in A | 1778754 |
| Num. non-zeros in c | 58177 |
| Rows/Cols | 1.00512089888 |
| Integers | 11073 |
| Binaries | 18632 |
| Continuous | 390729 |
| min nonzero |Aij| | 2.997902e-22 |
| max |Aij| | 1e+11 |
| min nonzero |cj| | 0.02625 |
| max |cj| | 46.8051 |
| Integer Objective | 6.15538e+09 |
| LP Objective | 6131846109.623997 |
| Aggregation | 40676 |
| Variable Bound | 60189 |
| Set partitioning | 3836 |
| Set packing | |
| Set covering | |
| Cardinality | |
| Equality Knapsacks | |
| Bin packing | |
| Invariant Knapsack | |
| Knapsacks | |
| Integer Knapsack | |
| Mixed 0/1 | 122870 |
| General Cons. | |
| References |
Natural gas supply portfolio optimization