Simulating the Universe on an Intercontinental Grid. - Simon Portegies Zwart; Derek Groen; Tomoaki Ishiyama; Keigo Nitadori; Junichiro Makino; Cees de Laat; Steve McMillan; Kei Hiraki; Stefan Harfst; Paola Grosso (Computer, 2010)

Simulating the universe on an intercontinental grid of supercomputers - Simon Portegies Zwart; Tomoaki Ishiyama; Derek Groen; Keigo Nitadori; Junichiro Makino; Cees de Laat; Stephen L. W. McMillan; Kei Hiraki; Stefan Harfst; Paola Grosso (CoRR, 2010)

High Performance Gravitational N-body Simulations on a Planet-wide Distributed Supercomputer - Derek Groen; Simon Portegies Zwart; Tomoaki Ishiyama; Junichiro Makino (CoRR, 2011)

4.45 Pflops astrophysical N-body simulation on K computer: the gravitational trillion-body problem. - Tomoaki Ishiyama; Keigo Nitadori; Junichiro Makino (SC, 2012)

24.77 Pflops on a Gravitational Tree-Code to Simulate the Milky Way Galaxy with 18600 GPUs. - Jeroen Bédorf; Evghenii Gaburov; Michiko S. Fujii; Keigo Nitadori; Tomoaki Ishiyama; Simon Portegies Zwart (SC, 2014)

Supercomputer simulations of structure formation in the Universe. - Tomoaki Ishiyama (Astroinformatics, 2016)

High Performance Gravitational N-body Simulations on Supercomputer Fugaku. - Tomoaki Ishiyama; Kohji Yoshikawa; Ataru Tanikawa (HPC Asia, 2022)

Performance Evaluation of Parallel Sortings on the Supercomputer Fugaku. - Tomoyuki Tokuue; Tomoaki Ishiyama (J. Inf. Process., 2023)