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Persistent URL	http://purl.org/net/epubs/work/12333392
Record Status	Checked
Record Id	12333392
Title	Enhancing scalability of the gyrokinetic code GS2 by using MPI Shared Memory for FFTs
Contributors	Dr L Anton (STFC Daresbury Lab.), Dr C Roach (Culham Centre for Fusion Energy, Culham Science Centre, Abingdon, OX14 3DB, Oxfordshire, UK), Dr F van Wyk (Department of Physics, Oxford University, UK), Dr E Highcock (Department of Physics, Oxford University, UK)
Abstract	In this report we present a preliminary study for two algorithms that allow 2D FFT computations presently carried out in the memory associated with a single MPI task running on one core in the gyrokinetic plasma code GS2, to be computed in shared memory either in one node, or in a group of nodes. If this can be done efficiently, it may significantly extend the scalability of GS2 to higher core counts.
Organisation	STFC , SCI-COMP , SCI-COMP-APE
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Language	English (EN)

Type	Details	URI(s)	Local file(s)	Year
Report	2015.	http://purl.org/n…nifestation/12333395		2015