An efficient parallel method for large-scale groundwater flow equation based on PETSc

Author

Cheng, Tangpei ; Ji, Xiaohui ; Wang, Qun

Author_Institution

Sch. of Inf. Eng., China Univ. of Geosci. (Beijing), Beijing, China

fYear

2009

fDate

20-21 Sept. 2009

Firstpage

190

Lastpage

193

Abstract

In this paper, we present an efficient scheme for the parallel solution of large-scale three-dimensional groundwater flow equation. The scheme has been implemented and the program is parallelized by using a SPMD (single-program, multiple data) paradigm and a domain decomposition strategy provided in PETSc (Portable Extensible Toolkit for Scientific Computation). The efficiency and scalability of the parallel-computing scheme are demonstrated by completing a simplified groundwater scenario, in which different preconditioned Krylov subspace methods have been tested and analyzed. The numerical results show that the parallel method could enhance the modeling capabilities and accelerate the simulation process significantly.

Keywords

finite difference methods; flow simulation; geophysics computing; groundwater; hydrological techniques; parallel algorithms; parallel programming; partial differential equations; Krylov subspace methods; PETSc; Portable Extensible Toolkit for Scientific Computation; SPMD paradigm; domain decomposition strategy; efficient parallel method; finite difference method; large-scale groundwater flow equation; parallel programming; parallel-computing scheme; partial differential equations; single-program multiple data paradigm; Chromium; Computational modeling; Concurrent computing; Conductivity; Equations; Geology; Large-scale systems; Material storage; Parallel processing; Water storage; Finite difference methods; Parallel algorithm; Parallel programming; Partial differential equations;

fLanguage

English

Publisher

ieee

Conference_Titel

Information, Computing and Telecommunication, 2009. YC-ICT '09. IEEE Youth Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-5074-9

Electronic_ISBN

978-1-4244-5076-3

Type

conf

DOI

10.1109/YCICT.2009.5382395

Filename

5382395