The Parallel Glasgow Shell Model Code and Applications

Ewins, Brian (1995) The Parallel Glasgow Shell Model Code and Applications. PhD thesis, University of Glasgow.

Abstract

This thesis describes the further development of the Glasgow Shell Model code, following on from the thesis of Dr. Mohammed Riaz. In that work, a possible parallel development of the Glasgow code was discussed, and a simplified version of the code constructed which could only run on three processors. Rather than immediately continue in this direction, we felt it would be worthwhile to investigate all of the possible ways that the code could be implemented in parallel, or that the current parallel version of the code could be made faster. Various models of the code were used to arrive at an implementation which is best able to satisfy our expectations for the parallelized version of the program. The development of this code is then described, showing how the code was written to be at once as optimal and as portable as possible, to take account of future architectures that may become available to us, and discussing problems that arise in doing large shell model calculations (in parallel or not). We go on to describe some applications of the new code, specifically to the termination of rotational bands in light sd-shell nuclei, and some original calculations in the cranked shell-model description of the nucleus, with a deformed basis being used. Finally the alternatives to the present work are described, showing where the present shell model code fits into the panoply of nuclear models for large-basis calculations.

• Item Type: Thesis (PhD)
• Qualification Level: Doctoral
• Additional Information: Adviser: Rex Whitehead
• Keywords: Nuclear physics and radiation
• Date of Award: 1995
• Depositing User: Enlighten Team
• Unique ID: glathesis:1995-74668
• Copyright: Copyright of this thesis is held by the author.
• Date Deposited: 27 Sep 2019 17:16
• Last Modified: 27 Sep 2019 17:16
• URI: https://theses.gla.ac.uk/id/eprint/74668