Parallelized tree–code for clusters of personal computers

Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, and Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina, Argentina e-mail: ddc@fcaglp.unlp.edu.ar

Send offprint request to: D.D. Carpintero

Received: 29 June 1999
Accepted: 12 November 1999

Abstract


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.