Performance comparison of parallel geometric and algebraic multigrid preconditioners for the bidomain equations

被引：0

作者：

Otaviano Campos, Fernando ^{[1
]}

Sachetto Oliveira, Rafael ^{[1
]}

Weber dos Santos, Rodrigo ^{[1
]}

机构：

[1] Univ Fed Juiz de Fora, Dept Comp Sci, FISIOCOMP, Lab Computat Physiol, Juiz de Fora, MG, Brazil

来源：

COMPUTATIONAL SCIENCE - ICCS 2006, PT 1, PROCEEDINGS | 2006年 / 3991卷

关键词：

D O I：

暂无

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

The purpose of this paper is to discuss parallel preconditioning techniques to solve the elliptic portion (since it dominates computation) of the bidomain model, a non-linear system of partial differential equations that is widely used for describing electrical activity in the heart. Specifically, we assessed the performance of parallel multigrid preconditioners for a conjugate gradient solver. We compared two different approaches: the Geometric and Algebraic Multigrid Methods. The implementation is based on the PETSc library and we reported results for a 6-node Athlon 64 cluster. The results suggest that the algebraic multigrid preconditioner performs better than the geometric multigrid method for the cardiac bidomain equations.

引用

页码：76 / 83

页数：8

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