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2023-01-16T04:21:24Z
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Flux Region Assignment Method Using Ray Trace Information for the Method of Characteristics to Improve Cache Efficiency
Yamamoto, Akio
Giho, Akinori
Endo, Tomohiro
open access
This is an Accepted Manuscript of an article published by Taylor & Francis Group in Nuclear Science and Engineering on 21/08/2018, available online: http://www.tandfonline.com/10.1080/00295639.2018.1501978.
Method of characteristics
cache
GENESIS
flux region identifications
ray trace
A flux region assignment algorithm to increase cache efficiency for the method of characteristics (MOC) is proposed. In order to minimize the stride of memory access, flux region identifications are assigned based on the ray trace sequence during the MOC calculation. The present method is implemented in the three-dimensional transport code GENESIS and its performance is confirmed through verification calculations ranging from single pressurized water reactor (PWR) fuel assembly to PWR full-core benchmark problems. Quantitative comparison of cache efficiency is carried out and the present method shows improved cache efficiency, which results in a reduction in computation time. The present method can reduce computational time by improving cache efficiency while suppressing memory requirement.
Published online: 21 Aug 2018
Taylor & Francis
2018
eng
journal article
AM
http://hdl.handle.net/2237/00030688
https://nagoya.repo.nii.ac.jp/records/28497
https://doi.org/10.1080/00295639.2018.1501978
0029-5639
Nuclear Science and Engineering
192
3
240
253
https://nagoya.repo.nii.ac.jp/record/28497/files/NSE192-3-240.pdf
application/pdf
5.0 MB
2019-09-17