Journal of Computational Electronics

, Volume 14, Issue 4, pp 922–929

Domain decomposition strategies for the two-dimensional Wigner Monte Carlo Method

Article

DOI: 10.1007/s10825-015-0730-0

Cite this article as:
Weinbub, J., Ellinghaus, P. & Nedjalkov, M. J Comput Electron (2015) 14: 922. doi:10.1007/s10825-015-0730-0

Abstract

A domain decomposition approach for the parallelization of the Wigner Monte Carlo method allows the huge memory requirements to be distributed amongst many computational units, thereby making large multi-dimensional simulations feasible. Two domain decomposition techniques—a uniform slab and uniform block decomposition—are compared and the design and implementation of the block decomposition approach, using the message passing interface, is discussed. The parallel performance of the two approaches is evaluated by simulating a representative physical problem. Our results show that the presumably inferior slab decomposition method is in fact superior to the block decomposition approach, due to the additional overhead incurred by the block decomposition method to set up its communication layer.

Keywords

Wigner Monte Carlo Domain decomposition Message passing interface 

Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Institute for MicroelectronicsTU WienViennaAustria

Personalised recommendations