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 - <p style="text-align: justify;">In this study, an <span style="font-family: ">N</span>-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 <span style="font-family: ">N</span> ≃10<sup>4</sup> objects.</p>