LP sequence: nsir1 and nsir2
Name nsir
Group Meszaros
Matrix ID 1821
Num Rows 4,453
Num Cols 10,057
Nonzeros 154,939
Pattern Entries 154,939
Kind Linear Programming Problem Sequence
Symmetric No
Date 2004
Editor C. Meszaros
Structural Rank 4,453
Structural Rank Full true
Num Dmperm Blocks 4
Strongly Connect Components 4
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type integer
SVD Statistics
Matrix Norm 1.007864e+07
Minimum Singular Value 5.040161e-06
Condition Number 1.999666e+12
Rank 4,391
sprank(A)-rank(A) 62
Null Space Dimension 62
Full Numerical Rank? no
Download Singular Values MATLAB
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Converted to standard form via Resende and Veiga's mpsrd:
minimize c'*x, subject to A*x=b and lo <= x <= hi