Performance of a Parallel Astrophysical N-Body Solver on Pan-European Computational Grids. - Alfredo Tirado-Ramos; Alessia Gualandris; Simon Portegies Zwart (EGC, 2005)

Distributed N-body Simulation on the Grid Using Dedicated Hardware - Derek Groen; Simon Portegies Zwart; Steve McMillan; Jun Makino (CoRR, 2007)

A parallel gravitational N-body kernel - Simon Portegies Zwart; Steve McMillan; Derek Groen; Alessia Gualandris; Michael Sipior; Willem Vermin (CoRR, 2007)

Towards Distributed Petascale Computing - Alfons G. Hoekstra; Simon Portegies Zwart; Marian Bubak; Peter M. A. Sloot (CoRR, 2007)

High Performance Direct Gravitational N-body Simulations on Graphics Processing Units - Simon Portegies Zwart; Robert G. Belleman; Peter Geldof (CoRR, 2007)

Regular Paper: Interactive N-Body Simulations On the Grid: HLA Versus MPI. - Katarzyna Rycerz; Alfredo Tirado-Ramos; Alessia Gualandris; Simon Portegies Zwart; Marian Bubak; Peter M. A. Sloot (Int. J. High Perform. Comput. Appl., 2007)

Performance analysis of direct N-body algorithms for astrophysical simulations on distributed systems. - Alessia Gualandris; Simon Portegies Zwart; Alfredo Tirado-Ramos (Parallel Comput., 2007)

Simulating N-Body Systems on the Grid Using Dedicated Hardware. - Derek Groen; Simon Portegies Zwart; Steve McMillan; Jun Makino (ICCS (1), 2008)

A Multiphysics and Multiscale Software Environment for Modeling Astrophysical Systems. - Simon Portegies Zwart; Steve McMillan; Breanndán Ó Nualláin; Douglas Heggie; James Lombardi; Piet Hut; Sambaran Banerjee; Houria Belkus; Tassos Fragos; John Fregeau; Michiko Fuji; Evghenii Gaburov; et al. (ICCS (2), 2008)

On the Origin of Grid Species: The Living Application. - Derek Groen; Stefan Harfst; Simon Portegies Zwart (ICCS (1), 2009)

SAPPORO: A way to turn your graphics cards into a GRAPE-6 - Evghenii Gaburov; Stefan Harfst; Simon Portegies Zwart (CoRR, 2009)

The Living Application: a Self-Organising System for Complex Grid Tasks - Derek Groen; Stefan Harfst; Simon Portegies Zwart (CoRR, 2009)

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)

A Light-Weight Communication Library for Distributed Computing - Derek Groen; Steven Rieder; Paola Grosso; Cees de Laat; Simon Portegies Zwart (CoRR, 2010)

The Living Application: a Self-Organizing System for Complex Grid Tasks. - Derek Groen; Stefan Harfst; Simon Portegies Zwart (Int. J. High Perform. Comput. Appl., 2010)

Gravitational tree-code on graphics processing units: implementation in CUDA. - Evghenii Gaburov; Jeroen Bédorf; Simon Portegies Zwart (ICCS, 2010)

A platform independent communication library for distributed computing. - Derek Groen; Steven Rieder; Paola Grosso; Cees de Laat; Simon Portegies Zwart (ICCS, 2010)

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

High performance cosmological simulations on a grid of supercomputers - Derek Groen; Steven Rieder; Simon Portegies Zwart (CoRR, 2011)

High-Performance Distributed Multi-Model / Multi-Kernel Simulations: A Case-Study in Jungle Computing. - Niels Drost; Jason Maassen; Maarten A. J. van Meersbergen; Henri E. Bal; F. Inti Pelupessy; Simon Portegies Zwart; Michael Kliphuis; Henk A. Dijkstra; Frank J. Seinstra (IPDPS Workshops, 2012)

Bonsai: A GPU Tree-Code - Jeroen Bédorf; Evghenii Gaburov; Simon Portegies Zwart (CoRR, 2012)

A sparse octree gravitational N-body code that runs entirely on the GPU processor. - Jeroen Bédorf; Evghenii Gaburov; Simon Portegies Zwart (J. Comput. Phys., 2012)

The Astronomical Multipurpose Software Environment and the Ecology of Star Clusters. - Simon Portegies Zwart (CCGRID, 2013)

MPWide: a light-weight library for efficient message passing over wide area networks. - Derek Groen; Steven Rieder; Simon Portegies Zwart (CoRR, 2013)

Multi-physics simulations using a hierarchical interchangeable software interface. - Simon Portegies Zwart; Stephen L. W. McMillan; Arjen van Elteren; F. Inti Pelupessy; Nathan de Vries (Comput. Phys. Commun., 2013)

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)

On the minimal accuracy required for simulating self-gravitating systems by means of direct N-body methods. - Simon Portegies Zwart; Tjarda Boekholt (CoRR, 2014)

Computational Gravitational Dynamics with Modern Numerical Accelerators. - Simon Portegies Zwart; Jeroen Bédorf (CoRR, 2014)

From Thread to Transcontinental Computer: Disturbing Lessons in Distributed Supercomputing. - Derek Groen; Simon Portegies Zwart (e-Science, 2015)

Using GPUs to Enable Simulation with Computational Gravitational Dynamics in Astrophysics. - Simon Portegies Zwart; Jeroen Bédorf (Computer, 2015)

Sapporo2: A versatile direct N-body library. - Jeroen Bédorf; Evghenii Gaburov; Simon Portegies Zwart (CoRR, 2015)

OMUSE: Oceanographic multipurpose software environment. - F. Inti Pelupessy; Ben van Werkhoven; Arjen van Elteren; Jan Viebahn; Adam Candy; Simon Portegies Zwart; Henk A. Dijkstra (eScience, 2016)

Creating the Virtual Universe. - Simon Portegies Zwart; Jeroen Bédorf (IEEE Softw., 2016)

Development of the OMUSE/AMUSE Modeling System. - F. Inti Pelupessy; Ben van Werkhoven; Gijs van den Oord; Simon Portegies Zwart; Arjen van Elteren; Henk A. Dijkstra (eScience, 2018)

Numerical verification of the microscopic time reversibility of Newton's equations of motion: Fighting exponential divergence. - Simon Portegies Zwart; Tjarda Boekholt (Commun. Nonlinear Sci. Numer. Simul., 2018)

Creating a Reusable Cross-Disciplinary Multi-scale and Multi-physics Framework: From AMUSE to OMUSE and Beyond. - F. Inti Pelupessy; Simon Portegies Zwart; Arjen van Elteren; Henk A. Dijkstra; Fredrik Jansson; Daan Crommelin; Pier Siebesma; Ben van Werkhoven; Gijs van den Oord (ICCS (4), 2019)

Bonsai-SPH: A GPU accelerated astrophysical Smoothed Particle Hydrodynamics code. - Jeroen Bédorf; Simon Portegies Zwart (CoRR, 2019)

Newton vs the machine: solving the chaotic three-body problem using deep neural networks. - Philip G. Breen; Christopher N. Foley; Tjarda Boekholt; Simon Portegies Zwart (CoRR, 2019)

Non-intrusive hierarchical coupling strategies for multi-scale simulations in gravitational dynamics. - Simon Portegies Zwart; F. Inti Pelupessy; Carmen Martínez-Barbosa; Arjen van Elteren; Steve McMillan (Commun. Nonlinear Sci. Numer. Simul., 2020)

Deep-learning enhancement of large scale numerical simulations. - Caspar van Leeuwen; Damian Podareanu; Valeriu Codreanu; Maxwell X. Cai; Axel Berg; Simon Portegies Zwart; Robin Stoffer; Menno Veerman; Chiel van Heerwaarden; Sydney Otten; Sascha Caron; Cunliang Geng; et al. (CoRR, 2020)

Neural Symplectic Integrator with Hamiltonian Inductive Bias for the Gravitational $N$-body Problem. - Maxwell X. Cai; Simon Portegies Zwart; Damian Podareanu (CoRR, 2021)

A hybrid approach for solving the gravitational N-body problem with Artificial Neural Networks. - Veronica Saz Ulibarrena; Philipp Horn; Simon Portegies Zwart; Elena Sellentin; Barry Koren; Maxwell X. Cai (CoRR, 2023)

A hybrid approach for solving the gravitational N-body problem with Artificial Neural Networks. - Veronica Saz Ulibarrena; Philipp Horn; Simon Portegies Zwart; Elena Sellentin; Barry Koren; Maxwell X. Cai (J. Comput. Phys., 2024)

Reinforcement learning for adaptive time-stepping in the chaotic gravitational three-body problem. - Veronica Saz Ulibarrena; Simon Portegies Zwart (Commun. Nonlinear Sci. Numer. Simul., 2025)

A generalized framework of neural networks for Hamiltonian systems. - Philipp Horn; Veronica Saz Ulibarrena; Barry Koren; Simon Portegies Zwart (J. Comput. Phys., 2025)