| Matrix properties | |
| number of rows | 823 |
| number of columns | 8,904 |
| nonzeros | 72,965 |
| structural full rank? | yes |
| structural rank | 823 |
| # of blocks from dmperm | 1 |
| # strongly connected comp. | 1 |
| entries not in dmperm blocks | 0 |
| explicit zero entries | 0 |
| nonzero pattern symmetry | 0% |
| numeric value symmetry | 0% |
| type | binary |
| structure | rectangular |
| Cholesky candidate? | no |
| positive definite? | no |
| author | |
| editor | C. Meszaros |
| date | 2004 |
| kind | linear programming problem |
| 2D/3D problem? | no |
| Additional fields | size and type |
| b | full 823-by-1 |
| c | full 8904-by-1 |
| lo | full 8904-by-1 |
| hi | full 8904-by-1 |
| z0 | full 1-by-1 |
Notes:
http://www.sztaki.hu/~meszaros/public_ftp/lptestset Converted to standard form via Resende and Veiga's mpsrd: minimize c'*x, subject to A*x=b and lo <= x <= hi
| Ordering statistics: | AMD | METIS |
| nnz(V) for QR, upper bound nnz(L) for LU | 4,651,042 | 4,291,551 |
| nnz(R) for QR, upper bound nnz(U) for LU | 238,287 | 243,551 |
Maintained by Tim Davis, last updated 05-Mar-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.