N-body simulations with two-orders-of-magnitude higher performance using wavelets
Astrophysics
2008-11-26 v1 Computational Physics
Plasma Physics
Abstract
Noise is a problem of major concern for N-body simulations of structure formation in the early Universe, of galaxies and plasmas. Here for the first time we use wavelets to remove noise from N-body simulations of disc galaxies, and show that they become equivalent to simulations with two orders of magnitude more particles. We expect a comparable improvement in performance for cosmological and plasma simulations. Our wavelet code will be described in a following paper, and will then be available on request.
Cite
@article{arxiv.astro-ph/0302343,
title = {N-body simulations with two-orders-of-magnitude higher performance using wavelets},
author = {Alessandro B. Romeo and Cathy Horellou and Joeran Bergh},
journal= {arXiv preprint arXiv:astro-ph/0302343},
year = {2008}
}
Comments
Mon. Not. R. Astron. Soc., in press. The interested reader is strongly recommended to ignore the low-resolution Fig. 3 (and Fig. 4), and to download the full-resolution paper (700 kb) from http://www.oso.chalmers.se/~romeo/Paper_VI.ps.gz