A Comparative Study on Different Parallel Solvers for Nonlinear Analysis of Complex Structures

Lei Zhang, Guoxin Zhang, Lixiang Wang, Zhaosong Ma and Shihai Li

Mathematical Problems in Engineering, 2013, vol. 2013, 1-14

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.

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:764237

DOI: 10.1155/2013/764237

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