HP MLIB User's Guide Vol. 2 7th Ed.

Chapter 9 LAPACK Auxiliary Subprograms 651
Overview
9 LAPACK Auxiliary Subprograms
Overview
This chapter describes selected LAPACK auxiliary subprograms. Although the
auxiliary subprograms are a part of the public domain release of LAPACK, the
Hewlett-Packard implementation of LAPACK does not support all of them.
They are internal to the package and subject to change. The auxiliary
subprograms described in this chapter, however, are supported as part of
LAPACK and will exist in subsequent releases of the product. The operations
covered are:
• Computing a norm of a matrix, for matrices stored in several different
formats
• Reporting errors in a consistent manner
Chapter Objectives
After reading this chapter you will:
• Know what a vector norm and a matrix norm are and which matrix norms
can be computed by LAPACK auxiliary subprograms
• Know how blocking parameters are set and used
• Know how to use the described subprograms