# Function/Subroutine Documentation

## subroutine aladhd (integer iounit, character*3 path)

Purpose:

` ALADHD prints header information for the driver routines test paths.`

Parameters

IOUNIT
```          IOUNIT is INTEGER
The unit number to which the header information should be
printed.```

PATH

```          PATH is CHARACTER*3
The name of the path for which the header information is to
be printed.  Current paths are
_GE:  General matrices
_GB:  General band
_GT:  General Tridiagonal
_PO:  Symmetric or Hermitian positive definite
_PS:  Symmetric or Hermitian positive semi-definite
_PP:  Symmetric or Hermitian positive definite packed
_PB:  Symmetric or Hermitian positive definite band
_PT:  Symmetric or Hermitian positive definite tridiagonal
_SY:  Symmetric indefinite,
with partial (Bunch-Kaufman) pivoting
_SR:  Symmetric indefinite,
with rook (bounded Bunch-Kaufman) pivoting
_SK:  Symmetric indefinite,
with rook (bounded Bunch-Kaufman) pivoting
( new storage format for factors:
L and diagonal of D is stored in A,
subdiagonal of D is stored in E )
_SP:  Symmetric indefinite packed,
with partial (Bunch-Kaufman) pivoting
_HA:  (complex) Hermitian ,
Assen Algorithm
_HE:  (complex) Hermitian indefinite,
with partial (Bunch-Kaufman) pivoting
_HR:  (complex) Hermitian indefinite,
with rook (bounded Bunch-Kaufman) pivoting
_HK:  (complex) Hermitian indefinite,
with rook (bounded Bunch-Kaufman) pivoting
( new storage format for factors:
L and diagonal of D is stored in A,
subdiagonal of D is stored in E )
_HP:  (complex) Hermitian indefinite packed,
with partial (Bunch-Kaufman) pivoting
The first character must be one of S, D, C, or Z (C or Z only
if complex).```

Author

Univ. of Tennessee

Univ. of California Berkeley