210 citations · 678 across the 40 of their papers we have counts for
4 papers · 1 filter
A parallel gravitational N-body kernel
Simon Portegies Zwart, Steve McMillan, Derek Groen +3
We describe source code level parallelization for the {\tt kira} direct gravitational -body integrator, the workhorse of the {\tt starlab} production environment for simulating…
High Performance Direct Gravitational N-body Simulations on Graphics Processing Units -- II: An implementation in CUDA
Robert G. Belleman, Jeroen Bedorf, Simon Portegies Zwart
We present the results of gravitational direct -body simulations using the Graphics Processing Unit (GPU) on a commercial NVIDIA GeForce 8800GTX designed for gaming computers. T…
Towards Distributed Petascale Computing
A. G. Hoekstra, S. F. Portegies Zwart, M. Bubak +1
In this chapter we will argue that studying such multi-scale multi-science systems gives rise to inherently hybrid models containing many different algorithms best serviced by diff…
Selection of the SIM Astrometric Grid
D. M. Peterson, Y. Liu, S. Portegies Zwart
We investigate the choice of stellar population for use as the Astrometric Grid for the Space Interferometry Mission (SIM). SIM depends on the astrometric stability of about 2000 s…