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A Progress Report
Peter Teuben
University of Maryland College Park, MD, USA
In this talk I reported on upgrades and changes to the NEMO Stellar
Dynamics Toolbox over the past years. The initial version of the
package was assembled in 1986 (Hut, Barnes, Teuben), but has seen then
been continually upgraded. Apart from an active web site
(http://www.astro.umd.edu/nemo) with a N-body data-archive (we welcome
submissions) and an email exploder, most recent changes to NEMO include
an improved snapshot file I/O (based on direct file access), interfaces
to write code in C++ and Fortran, many conversions routines (to/from
codes from Starlab, Aarseth, Sellwood, Couchman, to name a few). Also
added were more examples of shell scripts, since they form a
self-documenting record of how a typical data-analysis is performed. The
current NEMO scheme allowed for compilation of simple and complex bodies
from 24 to 124 bytes per particles. A major drawback of this current
scheme (having to recompile the package) has recently been overcome in
the ZENO package (Barnes, priv.comm.) by defining particle properties
dynamically.