A Parallel Monte Carlo Simulation on Cluster System for Particle Transport

In Monte Carlo simulations, the more particles you trace, the more accurate results you get. While recent improvements in hardware and software have feasible on personal computers, it can still take hours, even days to achieve a statistically meaningful result. Geant4 is a kind of Monte Carlo simulation tool solving the problem in nuclear physics. It can be used to accurately simulate the passage of particles through matter. It has been reported that Geant4 parallelization was successfully achieved on PC cluster. Problems are how it works on cluster system which is different from PC cluster. Since cluster system has much higher data transmission speed, the limited exchange speed of data in the PC cluster is gone. In this paper, two usual parallel modes were compared in parallelizing the Monte Carlo simulation. They were static scheduling mode and master-slave mode. Simulations show that parallel Monte Carlo simulation on cluster system for particle transport using Geant4 is feasible.