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Volume 25, Issue 1
Accelerating N-Body Simulation of Self-Gravitating Systems with Limited First-Order Post-Newtonian Approximation

Takayuki Tatekawa

DOI: 10.4208/cicp.OA-2017-0119

Commun. Comput. Phys., 25 (2019), pp. 68-83.

Published online: 2018-09

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  • Abstract

In this study, an N-body simulation code was developed for self-gravitating systems with a limited first-order post-Newtonian approximation. The code was applied to a special case in which the system consists of one massive object and many low-mass objects. Therefore, the behavior of stars around the massive black hole could be analyzed. A graphics processing unit (GPU) was used to accelerate the code execution, and it could be accelerated by several tens of times compared to a single-core CPU for N ≃104 objects.

  • Keywords

Particle simulations, N-body simulations, general relativity, GPGPU.

  • AMS Subject Headings

65Y05, 65Y10, 68U20, 83C10

  • Copyright

COPYRIGHT: © Global Science Press

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@Article{CiCP-25-68, author = {Takayuki Tatekawa}, title = {Accelerating N-Body Simulation of Self-Gravitating Systems with Limited First-Order Post-Newtonian Approximation}, journal = {Communications in Computational Physics}, year = {2018}, volume = {25}, number = {1}, pages = {68--83}, abstract = {

In this study, an N-body simulation code was developed for self-gravitating systems with a limited first-order post-Newtonian approximation. The code was applied to a special case in which the system consists of one massive object and many low-mass objects. Therefore, the behavior of stars around the massive black hole could be analyzed. A graphics processing unit (GPU) was used to accelerate the code execution, and it could be accelerated by several tens of times compared to a single-core CPU for N ≃104 objects.

}, issn = {1991-7120}, doi = {https://doi.org/10.4208/cicp.OA-2017-0119}, url = {http://global-sci.org/intro/article_detail/cicp/12663.html} }
TY - JOUR T1 - Accelerating N-Body Simulation of Self-Gravitating Systems with Limited First-Order Post-Newtonian Approximation AU - Takayuki Tatekawa JO - Communications in Computational Physics VL - 1 SP - 68 EP - 83 PY - 2018 DA - 2018/09 SN - 25 DO - http://doi.org/10.4208/cicp.OA-2017-0119 UR - https://global-sci.org/intro/article_detail/cicp/12663.html KW - Particle simulations, N-body simulations, general relativity, GPGPU. AB -

In this study, an N-body simulation code was developed for self-gravitating systems with a limited first-order post-Newtonian approximation. The code was applied to a special case in which the system consists of one massive object and many low-mass objects. Therefore, the behavior of stars around the massive black hole could be analyzed. A graphics processing unit (GPU) was used to accelerate the code execution, and it could be accelerated by several tens of times compared to a single-core CPU for N ≃104 objects.

Takayuki Tatekawa. (2018). Accelerating N-Body Simulation of Self-Gravitating Systems with Limited First-Order Post-Newtonian Approximation. Communications in Computational Physics. 25 (1). 68-83. doi:10.4208/cicp.OA-2017-0119
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