| Matrix properties | |
| number of rows | 150,102 |
| number of columns | 150,102 |
| nonzeros | 726,674 |
| structural full rank? | yes |
| structural rank | 150,102 |
| # of blocks from dmperm | 1 |
| # strongly connected comp. | 1 |
| entries not in dmperm blocks | 0 |
| explicit zero entries | 0 |
| nonzero pattern symmetry | symmetric |
| numeric value symmetry | symmetric |
| type | real |
| structure | symmetric |
| Cholesky candidate? | yes |
| positive definite? | yes |
| author | U. Okuyucu |
| editor | T. Davis |
| date | 2006 |
| kind | circuit simulation problem |
| 2D/3D problem? | no |
| Ordering statistics: | AMD | METIS |
| nnz(chol(P*(A+A'+s*I)*P')) | 10,058,740 | 6,715,674 |
| Cholesky flop count | 5.0e+09 | 1.7e+09 |
| nnz(L+U), no partial pivoting | 19,967,378 | 13,281,246 |
| nnz(V) for QR, upper bound nnz(L) for LU | 19,602,585 | 13,624,985 |
| nnz(R) for QR, upper bound nnz(U) for LU | 35,961,188 | 25,353,872 |
Maintained by Tim Davis, last updated 04-May-2008.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.