Group QLi
| Group Description |
Mixed complementarity optimization problems from Qaun Li and Michael Ferris. QLi/crashbasis and QLi/majorbasis have the same nonzero pattern. However, UMFPACK 5.1 is much slower for majorbasis than for crashbasis, because of the extensive amount of denormal arithmetic that occurs during the factorization of majorbasis. This does not occur in the crashbasis matrix. QLi/largebasis added in 2008. The matrix is unsymmetric. |
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Displaying all 3 collection matrices
| Id | Name | Group | Rows | Cols | Nonzeros | Kind | Date | Download File |
|---|---|---|---|---|---|---|---|---|
| 1858 | crashbasis | QLi | 160,000 | 160,000 | 1,750,416 | Optimization Problem | 2007 | MATLAB Rutherford Boeing Matrix Market |
| 1859 | majorbasis | QLi | 160,000 | 160,000 | 1,750,416 | Optimization Problem | 2007 | MATLAB Rutherford Boeing Matrix Market |
| 1893 | largebasis | QLi | 440,020 | 440,020 | 5,240,084 | Optimization Problem | 2008 | MATLAB Rutherford Boeing Matrix Market |