Restructuring the BLAS Level 1 Routine for Computing the Modified Givens Transformation

Hopkins, Tim (1998) Restructuring the BLAS Level 1 Routine for Computing the Modified Givens Transformation. Technical report. , Canterbury, Kent, UK. (Full text available)

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Abstract

We look at how both logical restructuring and improvements available from successive versions of Fortran allow us to reduce the complexity (measured by a number of the commonly used software metrics) of the Level 1 BLAS code used to compute the modified Givens transformation. With these reductions in complexity we claim that we have improved both the maintainability and clarity of the code; in addition, we report a fix to a minor problem with the original code. The performance of two commercial Fortran restructuring tools is also reported.

Item Type:	Monograph (Technical report)
Uncontrolled keywords:	code restructuring, Fortran, legacy code
Subjects:	Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming,
Divisions:	Faculties > Science Technology and Medical Studies > School of Computing > Systems Architecture Group
Depositing User:	Mark Wheadon
Date Deposited:	31 Aug 2009 17:19 UTC
Last Modified:	06 Sep 2011 04:02 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/21699 (The current URI for this page, for reference purposes)