GHS_indef/c-69
Schenk: IBM TJ Watson, Yorktown, nonlinear optimization
| Name |
c-69 |
| Group |
GHS_indef |
| Matrix ID |
1226 |
|
Num Rows
|
67,458 |
|
Num Cols
|
67,458 |
|
Nonzeros
|
623,914 |
|
Pattern Entries
|
623,970 |
|
Kind
|
Optimization Problem |
|
Symmetric
|
Yes |
|
Date
|
2004 |
|
Author
|
IBM |
|
Editor
|
O. Schenk |
| Structural Rank |
67,458 |
| Structural Rank Full |
true |
|
Num Dmperm Blocks
|
29 |
|
Strongly Connect Components
|
29 |
|
Num Explicit Zeros
|
56 |
|
Pattern Symmetry
|
100% |
|
Numeric Symmetry
|
100% |
|
Cholesky Candidate
|
no |
|
Positive Definite
|
no |
|
Type
|
real |
| Download |
MATLAB
Rutherford Boeing
Matrix Market
|
| Notes |
Revised Nov 2006; relative eps changes to A, right-hand-side added.
Note that this matrix should have been placed in the Schenk_IBMNA/
directory when it was first added in August 2004, but moving it now
would disrupt exising users of the collection.
|
