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Proceedings Paper

Multi-core and GPU accelerated simulation of a radial star target imaged with equivalent t-number circular and Gaussian pupils
Author(s): Alan W. Greynolds
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Paper Abstract

Results from the GelOE optical engineering software are presented for the through-focus, monochromatic coherent and polychromatic incoherent imaging of a radial "star" target for equivalent t-number circular and Gaussian pupils. The FFT-based simulations are carried out using OpenMP threading on a multi-core desktop computer, with and without the aid of a many-core NVIDIA GPU accessing its cuFFT library. It is found that a custom FFT optimized for the 12-core host has similar performance to a simply implemented 256-core GPU FFT. A more sophisticated version of the latter but tuned to reduce overhead on a 448-core GPU is 20 to 28 times faster than a basic FFT implementation running on one CPU core.

Paper Details

Date Published: 25 September 2013
PDF: 9 pages
Proc. SPIE 8841, Current Developments in Lens Design and Optical Engineering XIV, 88410F (25 September 2013); doi: 10.1117/12.2021036
Show Author Affiliations
Alan W. Greynolds, Ruda-Cardinal, Inc. (United States)

Published in SPIE Proceedings Vol. 8841:
Current Developments in Lens Design and Optical Engineering XIV
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

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