Memory-efficient particle annihilation algorithm for Wigner Monte Carlo simulations

P. Ellinghaus, M. Nedjalkov, S. Selberherr
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Abstract

The Wigner Monte Carlo solver, using the signed-particle method, is based on the generation and annihilation of numerical particles. The memory demands of the annihilation algorithm can become exorbitant, if a high spatial resolution is used, because the entire discretized phase space is represented in memory. Two alternative algorithms, which greatly reduce the memory requirements, are presented here.
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维格纳-蒙特卡罗模拟的高效记忆粒子湮灭算法
维格纳蒙特卡罗求解器,使用符号粒子方法,是基于数值粒子的产生和湮灭。如果使用高空间分辨率,湮灭算法的内存需求可能会变得过高,因为整个离散相空间都在内存中表示。本文介绍了两种可选的算法,它们大大降低了内存需求。
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