| Matrix properties | |
| number of rows | 67,748 |
| number of columns | 216,350 |
| nonzeros | 465,294 |
| structural full rank? | no |
| structural rank | 67,596 |
| # of blocks from dmperm | 1,704 |
| # strongly connected comp. | 154 |
| explicit zero entries | 0 |
| nonzero pattern symmetry | 0% |
| numeric value symmetry | 0% |
| type | integer |
| structure | rectangular |
| Cholesky candidate? | no |
| positive definite? | no |
| author | |
| editor | H. Mittelmann |
| date | 2005 |
| kind | linear programming problem |
| 2D/3D problem? | no |
| Additional fields | size and type |
| b | full 67748-by-1 |
| c | full 216350-by-1 |
| lo | full 216350-by-1 |
| hi | full 216350-by-1 |
| z0 | full 1-by-1 |
Notes:
Hans Mittelmann test set, http://plato.asu.edu/ftp/lptestset 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 | 392,806,164 | 291,410,850 |
| nnz(R) for QR, upper bound nnz(U) for LU | 13,654,156 | 9,780,366 |
Maintained by Tim Davis, last updated 05-Mar-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.