| Project/Area Number |
22760062
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Engineering fundamentals
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | アルゴリズム / 計算物理 / シミュレーション工学 / 数理工学 / 境界積分方程式法 / 境界要素法 / 高速多重極法 / GPU / 並列アルゴリズム / M2L変換 / スカラー波動問題 / 高速計算 |
|---|
| Research Abstract |
The present study purposed to perform the low-frequency fast-multipole integral equation method for three dimensional Helmholtz' equation efficiently on a graphical processing unit(GPU), which is regarded as a multi-threaded many-core processor. Focusing on the multipole-to-local(M2L) operation that is the most time-consuming in the whole computation, we proposed high-performance algorithms that can decrease the memory-to-flop ratio in the operation and implemented a computer programme optimised for NVIDIA's Fermi GPUs. In the numerical analysis, we verified the improvement in computational performance and successfully performed an acoustic scattering problem of 560 million degree of freedom in 2. 8 hours.
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