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Time Optimization of Parallel Dynamic Analysis Using Greedy Algorithm in FEA

  • M. ChandanaEmail author
  • G. Unni Kartha
  • C. Mahesh
Conference paper
  • 179 Downloads
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 46)

Abstract

The Finite Element Method (FEM) is the most widely used numerical technique to predict the approximate response of a structure under various loading conditions. Predicting the response of a structure to seismic loading using FEM can be computationally intensive and time-consuming. Parallel FEM is one solution to such situations where the computation is distributed efficiently among multiple cores available in modern supercomputers. In order to utilise the advantage of parallel computing in FEM, Pacific Earthquake Engineering Research Centre (PEER), has developed the open source software, OpenSees, with advanced capabilities for performing parallel FEM specifically for carrying out earthquake engineering simulations. In this paper, a new methodology is proposed to improve the efficiency of parallel computation using greedy algorithm in OpenSees for the time history analysis of framed structures for multiple earthquakes. Greedy algorithm finds an optimal solution in a number of steps by effective scheduling and proper load balancing. This method is verified by studying the time required for analysis of arbitrary framed structures using a high performance computing machine with a 32-core CPU, 62-GB RAM and 256-GB memory. A percentage increase of 16.35 is observed in the speedup factor for a two dimensional model studied.

Keywords

Parallel finite element method OpenSees Time optimization Greedy algorithm 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Department of Civil EngineeringVedavyasa Institute of TechnologyKaradparamba, MalappuramIndia
  2. 2.Department of Civil EngineeringFederal Institute of Science and TechnologyAngamaly, KochiIndia
  3. 3.Department of Computer Science and EngineeringFederal Institute of Science and TechnologyAngamaly, KochiIndia

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