Performance of preconditioned iterative linear solvers for cardiovascular simulations in rigid and deformable vessels
Performance of preconditioned iterative linear solvers for cardiovascular simulations in rigid and deformable vessels
复制标题
用于刚性和可变形血管心血管模拟的预处理迭代线性求解器的性能
DOI:
10.1007/s00466-019-01678-3
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发表时间:
2019
影响因子:
4.1
通讯作者:
Marsden, Alison L.
中科院分区:
文献类型:
--
作者:
Seo, Jongmin;Schiavazzi, Daniele E.;Marsden, Alison L.
Computing the solution of linear systems of equations is invariably the most time consuming task in the numerical solutions of PDEs in many fields of computational science. In this study, we focus on the numerical simulation of cardiovascular hemodynamics with rigid and deformable walls, discretized in space and time through the variational multiscale finite element method. We focus on three approaches: the problem agnostic generalized minimum residual and stabilized bi-conjugate gradient (BICGS) methods, and a recently proposed, problem specific, bi-partitioned (BIPN) method. We also perform a comparative analysis of several preconditioners, including diagonal, block-diagonal, incomplete factorization, multigrid, and resistance based methods. Solver performance and matrix characteristics (diagonal dominance, symmetry, sparsity, bandwidth and spectral properties) are first examined for an idealized cylindrical geometry with physiologic boundary conditions and then successively tested on several patient-specific anatomies representative of realistic cardiovascular simulation problems. Incomplete factorization preconditioners provide the best performance and results in terms of both strong and weak scalability. The BIPN method was found to outperform other methods in patient-specific models with rigid walls. In models with deformable walls, BIPN was outperformed by BICG with diagonal and incomplete LU preconditioners.
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影响因子:
1.1
作者:
K. Laganà;G. Dubini;F. Migliavacca;R. Pietrabissa;G. Pennati;A. Veneziani;A. Quarteroni
通讯作者:
A. Quarteroni
影响因子:
4.1
作者:
Chen, Wenwu;Poirier, Bill
通讯作者:
Poirier, Bill
DOI:
10.1137/1.9780898718003
发表时间:
2003-05
期刊:
--
影响因子:
--
作者:
Y. Saad
通讯作者:
Y. Saad
影响因子:
2.8
作者:
Tran JS;Schiavazzi DE;Ramachandra AB;Kahn AM;Marsden AL
通讯作者:
Marsden AL
影响因子:
7.2
作者:
Schiavazzi,DE;Doostan,A;Iaccarino,G;Marsden,AL
通讯作者:
Marsden,AL