GHS_indef/sparsine

Gould, Hu, & Scott: structurual optimization (CUTEr)
Name sparsine
Group GHS_indef
Matrix ID 1308
Num Rows 50,000
Num Cols 50,000
Nonzeros 1,548,988
Pattern Entries 1,548,988
Kind Structural Problem
Symmetric Yes
Date 1995
Author N. Gould
Editor N. Gould
Structural Rank 50,000
Structural Rank Full true
Num Dmperm Blocks 1
Strongly Connect Components 1
Num Explicit Zeros 0
Pattern Symmetry 100%
Numeric Symmetry 100%
Cholesky Candidate no
Positive Definite no
Type real
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Notes