a comparative study on different parallel solvers for nonlinear analysis of complex structures

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ID: 253950
2013
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Abstract
The parallelization of 2D/3D software SAPTIS is discussed for nonlinear analysis of complex structures. A comparative study is made on different parallel solvers. The numerical models are presented, including hydration models, water cooling models, modulus models, creep model, and autogenous deformation models. A finite element simulation is made for the whole process of excavation and pouring of dams using these models. The numerical results show a good agreement with the measured ones. To achieve a better computing efficiency, four parallel solvers utilizing parallelization techniques are employed: (1) a parallel preconditioned conjugate gradient (PCG) solver based on OpenMP, (2) a parallel preconditioned Krylov subspace solver based on MPI, (3) a parallel sparse equation solver based on OpenMP, and (4) a parallel GPU equation solver. The parallel solvers run either in a shared memory environment OpenMP or in a distributed memory environment MPI. A comparative study on these parallel solvers is made, and the results show that the parallelization makes SAPTIS more efficient, powerful, and adaptable.
Reference Key
zhang2013mathematicala Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Lei Zhang;Guoxin Zhang;Lixiang Wang;Zhaosong Ma;Shihai Li
Journal journal of power sources
Year 2013
DOI
10.1155/2013/764237
URL
http://dx.doi.org/10.1155/2013/764237
Keywords
civil engineering (general)mathematics engineering (general)

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