首页> 外文会议>International Conference on Computational Science(ICCS 2006) pt.1; 20060528-31; Reading(GB) >Computation of Si Nanowire Bandstructures on Parallel Machines Through Domain Decomposition
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Computation of Si Nanowire Bandstructures on Parallel Machines Through Domain Decomposition

机译:通过域分解计算平行机上硅纳米线的能带结构

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摘要

This paper presents a methodology for calculating silicon nanowire (SiNW) bandstructures on parallel machines. A partition scheme is developed through domain decomposition and loading balance is considered for scheduling jobs on machines with different efficiencies. Using sp~3d~5s~* tight-binding model, the Hamiltonian matrix of the SiNW is constructed and its eigenvalues are extracted with the Implicitly Restarted Arnoldi Method. Parallel calculation performance is tested on identical machines finally and a linear speedup is gained as the number of nodes increases.
机译:本文提出了一种在并行机器上计算硅纳米线(SiNW)能带结构的方法。通过域分解开发了一种分区方案,并考虑了负载平衡以在具有不同效率的计算机上调度作业。使用sp〜3d〜5s〜*紧绑定模型,构建了SiNW的哈密顿矩阵,并通过隐式重启Arnoldi方法提取了其特征值。最后,在同一台计算机上测试了并行计算性能,并随着节点数量的增加而获得了线性加速。

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