NHSE Software Catalog

SMOOTH

url

ftp://ftp-hpcc.astro.washington.edu/pub/hpcc/smooth.2.01.tar.Z.

title_line

calculates mean-field quantities in cosmological N-body
simulations

contact

hpccsoft@astro.washington.edu

version

2.01

abstract

Smooth can calculate several mean quantities for all particles in an
cosmological N-Body simulation output file. The program produces a file for each
type of output specified by the user. Example outputs are calculation
of the density, mean velocity, mean speed, velocity dispersion, mach
number, and phase density. These output files contain one
"smoothed" quantity per particle. The output files produced by
smooth are in the tipsy array format.
Smooth takes input files in the tipsy binary format.
By default the program uses a symmetric spline
smoothing kernel similar to that used in SPH calculations.
A new features for release 2.01 is support for mark arrays to allow
quick calculation of mean quantities on a subset of the particles.

keywords

data analysis; cosmology; N-body problems

description

http://www-hpcc.astro.washington.edu/tools/