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

SEP: Data file for testing Symmetric Eigenvalue Problem routines 6 Number of values of N 0 1 2 3 5 50 Values of N (dimension) 5 Number of values of NB 1 3 3 3 20 Values of NB (blocksize) 2 2 2 2 2 Values of NBMIN (minimum blocksize) 1 0 5 9 1 Values of NX (crossover point) 25.0 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 SEP 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 nonsymmetric case.
The valid 3-character codes are `SEP` or `SST` (`CST`
in complex, `DST` in double precision, and `ZST` in
complex*16).