QLi/crashbasis
MCP; mixed complementarity optimization problem; similar to QLi/majorbasis
| Name | crashbasis | 
| Group | QLi | 
| Matrix ID | 1858 | 
| Num Rows | 160,000 | 
| Num Cols | 160,000 | 
| Nonzeros | 1,750,416 | 
| Pattern Entries | 1,750,416 | 
| Kind | Optimization Problem | 
| Symmetric | No | 
| Date | 2007 | 
| Author | Q. Li and M. Ferris | 
| Editor | T. Davis | 
 
 
| Structural Rank | 160,000 | 
| Structural Rank Full | true | 
| Num Dmperm Blocks | 1 | 
| Strongly Connect Components | 1 | 
| Num Explicit Zeros | 0 | 
| Pattern Symmetry | 55% | 
| Numeric Symmetry | 0% | 
| Cholesky Candidate | no | 
| Positive Definite | no | 
| Type | real | 
 
 
| Download | MATLAB
Rutherford Boeing
Matrix Market | 
| Notes | 
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 number of denormal floating-point values that occur in      
majorbasis (they do not occur in crashbasis). |