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### Input File for Testing the Generalized Symmetric Eigenvalue Drivers

An annotated example of an input file for testing the generalized symmetric eigenvalue drivers is shown below.

```SEP:  Data file for testing Symmetric Eigenvalue Problem routines
7                                 Number of values of N
0 1 2 3 5 10 16                   Values of N (dimension)
3                                 Number of values of NB, NBMIN, NX
1 3 20                            Values of NB (blocksize)
2 2  2                            Values of NBMIN (minimum blocksize)
1 1  1                            Values of NX (crossover point)
20.0                              Threshold value
T                                 Put T to test the LAPACK routines
T                                 Put T to test the driver routines
T                                 Put T to test the error exits
1                                 Code to interpret the seed
SSG 21
```

The first line of the input file must contain the characters SEP in columns 1-3. Lines 2-12 are read using list-directed input and specify the following values:

 line 2: The number of values of N line 3: The values of N, the matrix dimension line 4: The number of values of the parameters NB, NBMIN, NX line 5: The values of NB, the blocksize line 6: The values of NBMIN, the minimum blocksize line 7: The values of NX, the crossover point line 8: The threshold value for the test ratios line 9: TSTCHK, flag to test LAPACK routines line 10: TSTDRV, flag to test driver routines line 11: TSTERR, flag to test error exits from LAPACK and driver routines line 12: An integer code to interpret the random number seed = 0: Set the seed to a default value before each run = 1: Initialize the seed to a default value only before the first run = 2: Like 1, but use the seed values on the next line line 13: If line 12 was 2, four integer values for the random number seed

The remaining lines are used to specify the matrix types for one or more sets of tests, as in the symmetric case. The valid 3-character code is SSG (CSG in complex, DSG in double precision, and ZSG in complex*16).

Next: Testing the Singular Value Up: Testing the Generalized Symmetric Previous: Tests Performed on the   Contents
Susan Blackford 2001-08-13