Accurate Simulation of Neutrons in Less Than One Minute Pt. 2: Sandman—GPU-Accelerated Adjoint Monte-Carlo Sampled Acceptance Diagrams
A computational method in the modelling of neutron beams is described that blends neutron acceptance diagrams, GPU-based Monte-Carlo sampling, and a Bayesian approach to efficiency. The resulting code reaches orders of magnitude improvement in performance relative to existing methods. For example, d...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Quantum Beam Science |
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| Online Access: | https://www.mdpi.com/2412-382X/4/2/24 |
| _version_ | 1797565191684096000 |
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| author | Phillip Bentley |
| author_facet | Phillip Bentley |
| author_sort | Phillip Bentley |
| collection | DOAJ |
| description | A computational method in the modelling of neutron beams is described that blends neutron acceptance diagrams, GPU-based Monte-Carlo sampling, and a Bayesian approach to efficiency. The resulting code reaches orders of magnitude improvement in performance relative to existing methods. For example, data rates similar to world-leading, real instruments can be achieved on a 2017 laptop, generating <inline-formula> <math display="inline"> <semantics> <msup> <mn>10</mn> <mn>6</mn> </msup> </semantics> </math> </inline-formula> neutrons per second at the sample position of a high-resolution small angle scattering instrument. The method is benchmarked, and is shown to be in agreement with previous work. Finally, the method is demonstrated on a mature instrument design, where a sub-second turnaround in an interactive simulation process allows the rapid exploration of a wide range of options. This results in a doubling of the design performance, at the same time as reducing the hardware cost by 40%. |
| first_indexed | 2024-03-10T19:08:35Z |
| format | Article |
| id | doaj.art-ceb47e7cd9c64859bdb44f741b6fadd6 |
| institution | Directory Open Access Journal |
| issn | 2412-382X |
| language | English |
| last_indexed | 2024-03-10T19:08:35Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Quantum Beam Science |
| spelling | doaj.art-ceb47e7cd9c64859bdb44f741b6fadd62023-11-20T03:59:28ZengMDPI AGQuantum Beam Science2412-382X2020-06-01422410.3390/qubs4020024Accurate Simulation of Neutrons in Less Than One Minute Pt. 2: Sandman—GPU-Accelerated Adjoint Monte-Carlo Sampled Acceptance DiagramsPhillip Bentley0European Spallation Source ERIC, Box 176, 221 00 Lund, SwedenA computational method in the modelling of neutron beams is described that blends neutron acceptance diagrams, GPU-based Monte-Carlo sampling, and a Bayesian approach to efficiency. The resulting code reaches orders of magnitude improvement in performance relative to existing methods. For example, data rates similar to world-leading, real instruments can be achieved on a 2017 laptop, generating <inline-formula> <math display="inline"> <semantics> <msup> <mn>10</mn> <mn>6</mn> </msup> </semantics> </math> </inline-formula> neutrons per second at the sample position of a high-resolution small angle scattering instrument. The method is benchmarked, and is shown to be in agreement with previous work. Finally, the method is demonstrated on a mature instrument design, where a sub-second turnaround in an interactive simulation process allows the rapid exploration of a wide range of options. This results in a doubling of the design performance, at the same time as reducing the hardware cost by 40%.https://www.mdpi.com/2412-382X/4/2/24GPUadjointMonte-Carloneutronsimulation |
| spellingShingle | Phillip Bentley Accurate Simulation of Neutrons in Less Than One Minute Pt. 2: Sandman—GPU-Accelerated Adjoint Monte-Carlo Sampled Acceptance Diagrams Quantum Beam Science GPU adjoint Monte-Carlo neutron simulation |
| title | Accurate Simulation of Neutrons in Less Than One Minute Pt. 2: Sandman—GPU-Accelerated Adjoint Monte-Carlo Sampled Acceptance Diagrams |
| title_full | Accurate Simulation of Neutrons in Less Than One Minute Pt. 2: Sandman—GPU-Accelerated Adjoint Monte-Carlo Sampled Acceptance Diagrams |
| title_fullStr | Accurate Simulation of Neutrons in Less Than One Minute Pt. 2: Sandman—GPU-Accelerated Adjoint Monte-Carlo Sampled Acceptance Diagrams |
| title_full_unstemmed | Accurate Simulation of Neutrons in Less Than One Minute Pt. 2: Sandman—GPU-Accelerated Adjoint Monte-Carlo Sampled Acceptance Diagrams |
| title_short | Accurate Simulation of Neutrons in Less Than One Minute Pt. 2: Sandman—GPU-Accelerated Adjoint Monte-Carlo Sampled Acceptance Diagrams |
| title_sort | accurate simulation of neutrons in less than one minute pt 2 sandman gpu accelerated adjoint monte carlo sampled acceptance diagrams |
| topic | GPU adjoint Monte-Carlo neutron simulation |
| url | https://www.mdpi.com/2412-382X/4/2/24 |
| work_keys_str_mv | AT phillipbentley accuratesimulationofneutronsinlessthanoneminutept2sandmangpuacceleratedadjointmontecarlosampledacceptancediagrams |