Matrix: JGD_Relat/relat9
Description: Relations from Florent Hiver, Univ. Paris-Est Marne-La-Valle'e
(bipartite graph drawing) |
Matrix properties | |
number of rows | 12,360,060 |
number of columns | 549,336 |
nonzeros | 38,955,420 |
structural full rank? | no |
structural rank | 274,667 |
# of blocks from dmperm | 2 |
# strongly connected comp. | 2,888,498 |
explicit zero entries | 0 |
nonzero pattern symmetry | 0% |
numeric value symmetry | 0% |
type | integer |
structure | rectangular |
Cholesky candidate? | no |
positive definite? | no |
author | F. Hiver |
editor | J.-G. Dumas |
date | 2008 |
kind | combinatorial problem |
2D/3D problem? | no |
Notes:
Relations from Florent Hiver, Univ. Paris-Est Marne-La-Valle'e From Jean-Guillaume Dumas' Sparse Integer Matrix Collection, http://ljk.imag.fr/membres/Jean-Guillaume.Dumas/simc.html http://www-igm.univ-mlv.fr/~hivert/ Filename in JGD collection: Relat/relat9.mat
Ordering statistics: | result |
nnz(V) for QR, upper bound nnz(L) for LU, with COLAMD | 2001525569043 |
nnz(R) for QR, upper bound nnz(U) for LU, with COLAMD | 32,083,453,420 |
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.