N-Body Simulation

This repository contain four different implementations of N-body simulation in Java.

Usage:

Compile:

• javac *.java

Sequential:

• java NBodySimulation [default settings]
• java NBodySimulation <numBodies> <numSteps>
• java NBodySimulation <numBodies> <numSteps> -g -r

Parallel:

• java NBodySimulation [default settings]
• java NBodySimulation <numBodies> <numSteps> <numWorkers>
• java NBodySimulation <numBodies> <numSteps> <numWorkers> -g -r

Barnes-Hut sequential:

• java NBodySimulation [default settings]
• java NBodySimulation <numBodies> <numSteps> <theta>
• java NBodySimulation <numBodies> <numSteps> <theta> -g -r

Barnes-Hut parallel:

• java NBodySimulation [default settings]
• java NBodySimulation <numBodies> <numSteps> <theta> <numWorkers>
• java NBodySimulation <numBodies> <numSteps> <theta> <numWorkers> -g -r

The flags "-g" and "-r" can be set after the other arguments:

• g: the simulation will be shown in a gui.
• r: the bodies will be generated in a ring formation around a central, more massive body.