IMG-04 High Scalable Parallel Algorism for Discrete Element Method(Imaging and Printing Technologies II,Technical Program of Oral Presentations)

概要

論文の詳細を見る
In the development process of the electro photographic system, a motion of development particle is controlled by electromagnetically to produce the image, and the electromagnetic interactions act between the particles. Therefore, to analyze behavior of particles under the interactions provides useful information for design of multi functional printer with high quality. The simulation method with discrete element method (DEM) algorithm is an important numerical technique to analyze the relation between motion of each particle and the design condition in the development process. Since the DEM algorism calculates equations of motion for all particles, it spends much computing time. Especially in a large number of particles system, the electromagnetic interactions between particles become complicated, it is difficult to perform the calculation within short time. To overcome this difficulty, parallel algorism was introduced to DEM, they did not achieve enough parallel performance for practical use [1]. In this study, the force decomposition method is introduced to DEM as parallel technique to realize high scalable parallel efficiency [2, 3, 4].
2009-06-17