A Parallel Tree Code

Details A Parallel Tree Code A Parallel Tree Code

1996-03-18

arxiv.org/abs/astro-ph/9603097v1

Astronomy and Astrophysics

Astrophysics

19 pages with 8 postscript figures, aaspp4.sty or check http://www.ucolick.org/~dubinski/treecode/treecode.html

Scientific paper

10.1016/S1384-1076(96)00009-7

We describe a new implementation of a parallel N-body tree code. The code is load-balanced using the method of orthogonal recursive bisection to subdivide the N-body system into independent rectangular volumes each of which is mapped to a processor on a parallel computer. On the Cray T3D, the load balance in the range of 70-90\% depending on the problem size and number of processors. The code can handle simulations with $>$ 10 million particles roughly a factor of 10 greater than allowed in vectorized tree codes.

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