Effectiveness of mechanisms of Parallel Computing Toolbox for Matlab used in simulations of bodies system’s movements in gravitational field

Abstract

The paper describes parallelized programs implemented in MATLAB designated for simulations of bodies movements in a gravitational field. They allow to illustrate hyper-sensivity a weightless body movement to initial conditions in the triangular system of 3 heavy bodies. Programs generate orbits for complex N-body systems. They present trajectories near stable libration points (Lagrangian points) for the circular restricted three-body problem. Some mechanisms of Parallel Computing Toolbox were used in simulation program implementations, e.g.: parallel FOR-loop (parfor), statement based on the concept – single program multiple data (spmd) and jobs/tasks. Those methods of parallelization let speedup simulations executed on machines with multi-core processors. The paper presents experimental results that show effectiveness of proposed solutions and applied parallelization methods.