Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Parallelization of a Tree-Code for the Simulation of Self--Gravitating
  Astrophysical Systems   We present preliminary results on the parallelization of a Tree-Code for
evaluating gravitational forces in N-body astrophysical systems. Our HPF/CRAFT
implementation on a CRAY T3E machine attained an encouraging speed-up behavior,
reaching a value of 75 with 128 processor elements (PEs). The speed-up tests
regard the evaluation of the forces among N = 130,369 particles distributed
scaling the actual distribution of a sample of galaxies of the Leda catalog.

16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an