HP MLIB User's Guide Vol. 1 7th Ed.

Chapter 4 Sparse BLAS Operations 423
What you need to know to use these subprograms
What you need to know to use these subprograms
The following sections describe overall considerations for using matrix
subprograms:
• Subroutine naming convention
• Operator arguments in the Sparse BLAS
Subroutine naming convention
Each Sparse BLAS subroutine has a six-character name that is a function of
the data type, the data structure of the sparse matrix and the type of operation.
More precisely, each name is in the form XYYYZZ.
The first letter, denoted by X, in the naming convention indicates one of the four
Fortran data types, as shown in Table 4-1.
Table 4-1 Sparse BLAS Naming Convention—Data Type
T Data Type
S Single Precision REAL
D Double Precision REAL
C Single Precision COMPLEX
Z Double Precision COMPLEX