Meszaros/dbir2
linear programming problem, C. Meszaros test set
Name |
dbir2 |
Group |
Meszaros |
Matrix ID |
1706 |
Num Rows
|
18,906 |
Num Cols
|
45,877 |
Nonzeros
|
1,158,159 |
Pattern Entries
|
1,158,159 |
Kind
|
Linear Programming Problem |
Symmetric
|
No |
Date
|
2004 |
Author
|
|
Editor
|
C. Meszaros |
Structural Rank |
18,904 |
Structural Rank Full |
false |
Num Dmperm Blocks
|
29 |
Strongly Connect Components
|
2,366 |
Num Explicit Zeros
|
0 |
Pattern Symmetry
|
0% |
Numeric Symmetry
|
0% |
Cholesky Candidate
|
no |
Positive Definite
|
no |
Type
|
integer |
SVD Statistics |
Matrix Norm |
2.562482e+06 |
Minimum Singular Value |
0 |
Condition Number |
Inf
|
Rank |
18,904 |
sprank(A)-rank(A) |
0 |
Null Space Dimension |
2 |
Full Numerical Rank? |
no |
Download Singular Values |
MATLAB
|
Download |
MATLAB
Rutherford Boeing
Matrix Market
|
Notes |
http://www.sztaki.hu/~meszaros/public_ftp/lptestset
Converted to standard form via Resende and Veiga's mpsrd:
minimize c'*x, subject to A*x=b and lo <= x <= hi
|