GPU accelerated manifold correction method for spinning compact binaries
| Autor: | Chong-xi Ran, Song Liu, Shuang-ying Zhong |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Speedup 010308 nuclear & particles physics Graphics processing unit FOS: Physical sciences Astronomy and Astrophysics 01 natural sciences Computational science law.invention CUDA Acceleration Shared memory Space and Planetary Science law Phase space 0103 physical sciences Central processing unit Astrophysics - Instrumentation and Methods for Astrophysics 010303 astronomy & astrophysics Manifold (fluid mechanics) Instrumentation and Methods for Astrophysics (astro-ph.IM) ComputingMethodologies_COMPUTERGRAPHICS |
| DOI: | 10.48550/arxiv.1802.00147 |
| Popis: | The conservative Post-Newtonian (PN) Hamiltonian formulation of spinning compact binaries has six integrals of motion including the total energy, the total angular momentum and the constant unit lengths of spins. The manifold correction method can effectively eliminate the integration errors accumulation in a long time. In this paper, the accelerated manifold correction method based on graphics processing unit (GPU) is designed to simulate the dynamic evolution of spinning compact binaries. The feasibility and the efficiency of parallel computation on GPU for spinning compact binaries have been confirmed by various numerical experiments. The numerical comparisons show that the accuracy on GPU execution of manifold corrections method has a good agreement with the execution of codes on merely central processing unit (CPU-based) method. The acceleration ability when the codes are implemented on GPU can increase enormously through the use of shared memory and register optimization techniques without additional hardware costs, implying that the speedup is nearly 13 times as compared with the codes executed on CPU for phase space scan (including orbits). In addition, GPU-accelerated manifold correction method is used to numerically study how dynamics are affected by the spin-induced quadrupole-monopole interaction for black hole binary system. |
| Databáze: | OpenAIRE |
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