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Astron. Astrophys. Suppl. Ser.
Volume 142, Number 1, February II 2000
Page(s) 157 - 163
Published online 15 February 2000
DOI: 10.1051/aas:2000146

Astron. Astrophys. Suppl. Ser. 142, 157-163

Parallelized tree-code for clusters of personal computers

H.R. Viturro - D.D. Carpintero

Send offprint request: D.D. Carpintero

Correspondence to: Observatorio Astronómico - Paseo del Bosque S/N, 1900 La Plata, Argentina.

Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, and Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina, Argentina

Received June 29; accepted November 12, 1999


We present a tree-code for integrating the equations of the motion of collisionless systems, which has been fully parallelized and adapted to run in several PC-based processors simultaneously, using the well-known PVM message passing library software. SPH algorithms, not yet included, may be easily incorporated to the code. The code is written in ANSI C; it can be freely downloaded from a public ftp site. Simulations of collisions of galaxies are presented, with which the performance of the code is tested.

Key words: methods: numerical -- galaxies: interactions

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