Matrix: Botonakis/thermomech_TC
Description: FEM problem, temperature and deformation of a steel cylinder
(undirected graph drawing) |
Matrix properties | |
number of rows | 102,158 |
number of columns | 102,158 |
nonzeros | 711,558 |
structural full rank? | yes |
structural rank | 102,158 |
# of blocks from dmperm | 1 |
# strongly connected comp. | 1 |
explicit zero entries | 0 |
nonzero pattern symmetry | symmetric |
numeric value symmetry | symmetric |
type | real |
structure | symmetric |
Cholesky candidate? | yes |
positive definite? | yes |
author | I. Botonakis |
editor | T. Davis |
date | 2009 |
kind | thermal problem |
2D/3D problem? | yes |
Notes:
TC and TK are for temperature, dM and dK for deformation
Ordering statistics: | result |
nnz(chol(P*(A+A'+s*I)*P')) with AMD | 3,681,339 |
Cholesky flop count | 4.8e+08 |
nnz(L+U), no partial pivoting, with AMD | 7,260,520 |
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD | 6,659,121 |
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD | 12,417,253 |
For a description of the statistics displayed above, click here.
Maintained by Tim Davis, last updated 12-Mar-2014.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
Matrix graphs by Yifan Hu, AT&T Labs Visualization Group.