| Name | protfold |
| Download | protfold.mps.gz |
| Orginator | TU Darmstadt |
| Formulator | |
| Donator | |
| Rows | 2112 |
| Cols | 1835 |
| Non-zeros | 23491 |
| Integers | |
| Binaries | 1835 |
| Continuous | |
| |Min| | 1.00000000e+00 |
| |Max| | 1.00000000e+00 |
| Integer Objective | -31 |
| LP Objective | -41.9574468 |
| Root LP Basis | protfold.bas.gz |
| Set partitioning | 35 |
| Set packing | 49 |
| Set covering | 1906 |
| Cardinality | 2 |
| Equality Knapsacks | |
| Bin packing | |
| Invariant Knapsack | 120 |
| Knapsacks | |
| Integer Knapsack | |
| Upper bounds | |
| Lower bounds | |
| Mixed 0/1 | |
| General Cons. | |
| References |
protein folding instance
Gabriel Tavares reports the solution of the instance in about 9 days of computing time on a dual Xenon maschine using Xpress 2006B with the following settings: MIPRELSTOP=0, MIPABSSTOP=0, MIPADDCUTOFF=0, HEURSTRATEGY=3 MIPTHREADS=4.