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### Problem with SEP

Posted: Sun May 28, 2006 9:52 pm
Hello.

I have some questions on LAPACK TESTING.Some reslut of SEP is abnormal.The output file is as follow:

Tests of the Hermitian Eigenvalue Problem routines

LAPACK VERSION 3.0, released June 30, 1999

The following parameter values will be used:
M: 0 512 513
N: 0 512 513
NB: 1 2 3 4 5
NBMIN: 2 2 2 2 2
NX: 1 0 5 9 1

Relative machine underflow is taken to be 0.117549E-37
Relative machine overflow is taken to be 0.340282E+39
Relative machine precision is taken to be 0.596046E-07

Routines pass computational tests if test ratio is less than 500.00

CST routines passed the tests of the error exits (114 tests done)

SEP: NB = 1, NBMIN = 2, NX = 1

CST -- Complex Hermitian eigenvalue problem
Matrix types (see CCHKST for details):

Special Matrices:
1=Zero matrix. 5=Diagonal: clustered entries.
2=Identity matrix. 6=Diagonal: large, evenly spaced.
3=Diagonal: evenly spaced entries. 7=Diagonal: small, evenly spaced.
4=Diagonal: geometr. spaced entries.
Dense Hermitian Matrices:
8=Evenly spaced eigenvals. 12=Small, evenly spaced eigenvals.
9=Geometrically spaced eigenvals. 13=Matrix with random O(1) entries.
10=Clustered eigenvalues. 14=Matrix with large random entries.
11=Large, evenly spaced eigenvals. 15=Matrix with small random entries.
16=Positive definite, evenly spaced eigenvalues
17=Positive definite, geometrically spaced eigenvlaues
18=Positive definite, clustered eigenvalues
19=Positive definite, small evenly spaced eigenvalues
20=Positive definite, large evenly spaced eigenvalues
21=Diagonally dominant tridiagonal, geometrically spaced eigenvalues

Test performed: see CCHKST for details.

Matrix order= 512, type= 9, seed= 439,2918,2818,3529, result 36 is 4414.43
CST: 1 out of 2331 tests failed to pass the threshold
*** XERBLA was called with SRNAME = CLATMS instead of CHPEVX ***
CDRVST: Generator returned INFO= -14
N= 512, JTYPE= 16, ISEED=( 3157, 2032, 3125, 669)
*** Error code from CDRVST = 14

SEP: NB = 2, NBMIN = 2, NX = 0

All tests for CST passed the threshold ( 2331 tests run)
*** XERBLA was called with SRNAME = CLATMS instead of CHPEVX ***
CDRVST: Generator returned INFO= -14
N= 513, JTYPE= 18, ISEED=( 3949, 2220, 3254, 2473)
*** Error code from CDRVST = 14

SEP: NB = 3, NBMIN = 2, NX = 5

All tests for CST passed the threshold ( 2331 tests run)
*** XERBLA was called with SRNAME = CLATMS instead of CHPEVX ***
CDRVST: Generator returned INFO= -14
N= 512, JTYPE= 17, ISEED=( 665, 2814, 729, 2961)
*** Error code from CDRVST = 14

SEP: NB = 4, NBMIN = 2, NX = 9

CST -- Complex Hermitian eigenvalue problem
Matrix types (see CCHKST for details):

Special Matrices:
1=Zero matrix. 5=Diagonal: clustered entries.
2=Identity matrix. 6=Diagonal: large, evenly spaced.
3=Diagonal: evenly spaced entries. 7=Diagonal: small, evenly spaced.
4=Diagonal: geometr. spaced entries.
Dense Hermitian Matrices:
8=Evenly spaced eigenvals. 12=Small, evenly spaced eigenvals.
9=Geometrically spaced eigenvals. 13=Matrix with random O(1) entries.
10=Clustered eigenvalues. 14=Matrix with large random entries.
11=Large, evenly spaced eigenvals. 15=Matrix with small random entries.
16=Positive definite, evenly spaced eigenvalues
17=Positive definite, geometrically spaced eigenvlaues
18=Positive definite, clustered eigenvalues
19=Positive definite, small evenly spaced eigenvalues
20=Positive definite, large evenly spaced eigenvalues
21=Diagonally dominant tridiagonal, geometrically spaced eigenvalues

Test performed: see CCHKST for details.

Matrix order= 512, type= 9, seed=3558, 335,3450, 473, result 36 is 1168.54
CST: 1 out of 2331 tests failed to pass the threshold
*** XERBLA was called with SRNAME = CLATMS instead of CHPEVX ***
CDRVST: Generator returned INFO= -14
N= 512, JTYPE= 17, ISEED=( 1993, 1244, 3019, 549)
*** Error code from CDRVST = 14

SEP: NB = 5, NBMIN = 2, NX = 1

All tests for CST passed the threshold ( 2331 tests run)
*** XERBLA was called with SRNAME = CLATMS instead of CHPEVX ***
CDRVST: Generator returned INFO= -14
N= 512, JTYPE= 18, ISEED=( 352, 907, 599, 805)
*** Error code from CDRVST = 14

End of tests
Total time used = 10656.99 seconds

I am running on an Alpha machine.
If someone has had a similar problem or know how to help me I would greatly appreciate it.

Posted: Tue May 30, 2006 9:35 am
Hello,
let's put this in a bug report for LAPACK, do not be that much afraid about this, this looks like a bug in the tester themselves. We'll need to fix it, sure, but right now, just consider that SEP has completed the testing.
Another problem is the running total tine that the output gives you... The SEP tester ran for 10,000 seconds ????
Julien

Posted: Tue May 30, 2006 9:01 pm
Thank you.The total time is really abnormal,but I have tested it several times.