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What is Particle-In-Cell Method

Chapter 13
Handbook of Research on Scalable Computing Technologies
Widely used numerical method for direct simulation of natural phenomena where the material is represented by the huge number of test particles. Instead of solution of the system of partial differential equations in the 6D space of co-ordinates and velocities, the dynamics of a simulated phenomenon is determined by integrating the equations of motion of every particle in the series of discrete time steps. The method began to be applicable with the use of supercomputers only.
Published in Chapter:
Assembling of Parallel Programs for Large Scale Numerical Modeling
V.E. Malyshkin (Russian Academy of Sciences, Russia)
Copyright: © 2010 |Pages: 17
DOI: 10.4018/978-1-60566-661-7.ch013
Abstract
The main ideas of the Assembly Technology (AT) in its application to parallel implementation of large scale realistic numerical models on a rectangular mesh are considered and demonstrated by the parallelization (fragmentation) of the Particle-In-Cell method (PIC) application to solution of the problem of energy exchange in plasma cloud. The implementation of the numerical models with the assembly technology is based on the construction of a fragmented parallel program. Assembling of a numerical simulation program under AT provides automatically different useful dynamic properties of the target program including dynamic load balance on the basis of the fragments migration from overloaded into underloaded processor elements of a multicomputer. Parallel program assembling approach also can be considered as combination and adaptation for parallel programming of the well known modular programming and domain decomposition techniques and supported by the system software for fragmented programs assembling.
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