The state of Monte Carlo neutron transport on GPU accelerators - A review - 25609

Conference · Wed Aug 15 04:00:00 EDT 2018

OSTI ID:23055127

Sweezy, Jeremy E.; Solomon, Jr., Clell J.; Burke, Timothy P. ^[1]; Hamilton, Steven P.; Evans, Thomas M. ^[2]

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1. Los Alamos National Laboratory, Los Alamos, NM (United States)
2. Oak Ridge National Laboratory, Oak Ridge, TN (United States)

A review of the current state of Monte Carlo neutron transport of Graphical Processing Units (GPUs) has been performed. Up-to-date data has been solicited from researchers in the field and combined with data available in literature to provide the current state of Monte Carlo neutron transport on GPU hardware. Nine implementations of neutron transport on GPUs have been summarized and the performance results have been presented to allow the reader to compare performance. A comparison of the results has shown that researchers obtained similar performance when scaled to the performance of NVIDIA Tesla K40 GPUs. A strong scaling equation will be presented that can be used to describe the GPU performance against different numbers of CPU cores. One implementation of a production Monte Carlo code on GPU hardware, the code Shift, showed that newer NVIDIA Pascal and Volta based GPUs provide a significant performance improvement. (authors)

• Research Organization: American Nuclear Society - ANS, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
• OSTI ID: 23055127
• Country of Publication: United States
• Language: English

Related Subjects

61 RADIATION PROTECTION AND DOSIMETRY
97 MATHEMATICS AND COMPUTING
COMPUTERIZED SIMULATION
IMPLEMENTATION
MONTE CARLO METHOD
NEUTRON TRANSPORT
PERFORMANCE
SCALING