A Monte Carlo study of continuous non-Ising phase transitions in the 3D Ashkin-Teller model using the OpenMosix cluster of linux PCs

Abstract

OpenMosix as the computing platform is presented and applied to the Monte Carlo study of continuous phase transitions, whose character was not unambigously resolved yet, in 3D Ashkin-Teller model on a cubic lattice. Calculating the critical exponent yh, we show that these phase transitions are not of Ising character and we give some indications to establish their universality class. It is demonstrated that OpenMosix ensures stability and good load-balancing of the Linux PCs cluster, but the best performance is achieved when applying it to parallelized jobs, which allowed us to perform calculations with larger samples. © Springer-Verlag Berlin Heidelberg 2004.