26 citations · 55 across the 4 of their papers we have counts for
4 papers
GOTHIC: Gravitational oct-tree code accelerated by hierarchical time step controlling
Yohei Miki, Masayuki Umemura
The tree method is a widely implemented algorithm for collisionless -body simulations in astrophysics well suited for GPU(s). Adopting hierarchical time stepping can accelerate…
Puzzling Outer-Density Profile of the Dark Matter Halo in the Andromeda Galaxy
Takanobu Kirihara, Yohei Miki, Masao Mori
The cold dark matter (CDM) cosmology, which is the standard theory of the structure formation in the universe, predicts that the outer density profile of dark matter halos decrease…
Relics of Galaxy Merging: Observational Predictions for a Wandering Massive Black Hole and Accompanying Star Cluster in the Halo of M31
Toshihiro Kawaguchi, Yuriko Saito, Yohei Miki +1
Galaxies and massive black holes (BHs) presumably grow via galactic merging events and subsequent BH coalescence. As a case study, we investigate the merging event between the Andr…
Astrophysical Particle Simulations on Heterogeneous CPU-GPU Systems
Naohito Nakasato, Go Ogiya, Yohei Miki +2
A heterogeneous CPU-GPU node is getting popular in HPC clusters. We need to rethink algorithms and optimization techniques for such system depending on the relative performance of…