Parallel computing in sound field analysis by bread slicing method

The use of the bread slicing method to reduce the amount of communication among nodes of a computer cluster on parallel computing of the distributed memory system, was investigated. The computer cluster consisted of 128 calculating nodes were used for the study. The sound wave in a three dimensional sound field was used to determine nodes distance. Boundary conditions was used to calculate sound pressure at grid points. The 256 GB memory space of the cluster was used for dividing the calculating field. The calculation of the sound field was performed using a spatial grid that is effective to calculate field with less memory space. The field was divided by the bread slicing method that requires a shorter communicating time among the processes. The method has the ability to increase the speed and scale of a distributed memory system.