Matrix: Mittelmann/stormG2_1000
Description: Linear programming problem (H. Mittelmann test set)
| Matrix properties | |
| number of rows | 528,185 |
| number of columns | 1,377,306 |
| nonzeros | 3,459,881 |
| structural full rank? | no |
| structural rank | 526,185 |
| # of blocks from dmperm | 3,002 |
| # strongly connected comp. | 5,001 |
| explicit zero entries | 0 |
| nonzero pattern symmetry | 0% |
| numeric value symmetry | 0% |
| type | real |
| 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 528185-by-1 |
| c | full 1377306-by-1 |
| lo | full 1377306-by-1 |
| hi | full 1377306-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 | 3.564360e+10 | 1.581821e+10 |
| nnz(R) for QR, upper bound nnz(U) for LU | 1,319,000,879 | 641,356,398 |
Maintained by Tim Davis, last updated 30-Sep-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.