N-body simulations with two-orders-of-magnitude higher performance using wavelets

Details N-body simulations with two-orders-of-magnitude higher performance using wavelets N-body simulations with two-orders-of-magnitude higher performance using wavelets

2003-02-18

arxiv.org/abs/astro-ph/0302343v1

Mon.Not.Roy.Astron.Soc.342:337-344,2003

Astronomy and Astrophysics

Astrophysics

Mon. Not. R. Astron. Soc., in press. The interested reader is strongly recommended to ignore the low-resolution Fig. 3 (and Fi

Scientific paper

10.1046/j.1365-8711.2003.06549.x

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.

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