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

NEP: Data file for testing Nonsymmetric Eigenvalue Problem routines 7 Number of values of N 0 1 2 3 5 10 16 Values of N (dimension) 5 Number of values of NB, NS, and MAXB 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) 2 4 2 4 6 Values of NS (no. of shifts) 20 20 6 10 10 Values of MAXB (min. blocksize) 20.0 Threshold value T Put T to test the error exits 1 Code to interpret the seed NEP 21

The first line of the input file
must contain the characters `NEP` in columns 1-3.
Lines 2-11 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, NS, and MAXB |

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 values of NS, the number of shifts |

line 9: | The values of MAXB, the minimum blocksize |

line 10: | The threshold value for the test ratios |

line 11: | 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 12: | If line 9 was 2, four integer values for the random number seed |

The remaining lines occur in sets of 1 or 2 and allow
the user to specify the matrix types. Each line contains
a 3-character identification in columns 1-3, which must be
either `NEP` or `SHS` (`CHS` in complex, `DHS` in
double precision, and `ZHS` in complex*16),
and the number of matrix types must
be the first nonblank item in columns 4-80. If the number
of matrix types is at least 1 but is less than the maximum
number of possible types, a second line will be read to get
the numbers of the matrix types to be used. For example,

NEP 21requests all of the matrix types for the nonsymmetric eigenvalue problem, while

NEP 4 9 10 11 12requests only matrices of type 9, 10, 11, and 12.