The Queen's University of Belfast

Abstract

It is generally a difficult task to construct efficient implementations of numerical mathematical algorithms for execution on high-performance computer systems. The difficulty arises from the need to express an implementation in a form that reflects the nature of the computer system, rather than a form that reflects the computations performed by the algorithm.This thesis develops the method of program transformation to derive automatically efficient implementations of algorithms from high-level, machine-independent specifications.The primary system considered is the AMT DAP array processor, but sequential and vector systems are also considered.The transformational method is further extended to automatically tailor implementations to use sparse programming techniques.

A Review of Research Concerning Lighting in Manufacturing Plants

“…The luminous level of lighting in buildings could be assessed or measured in a number of ways using different types of tools. In the year 1975, the lighting had been measured by using photometer at airport as stated by McCloy [14]. National Physical Laboratory verified every photometer calibration against a standard test lamp and noted that the equipment ensures accurate readings with the clear marking of the scale on the meter together with a knife-edge pointer [14].…”