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A Performance Comparison between Coarray and MPI for Parallel Wave Propagation Modeling and Reverse-time Migration

코어레이와 MPI를 이용한 병렬 파동 전파 모델링과 거꿀 참반사 보정 성능 비교

  • Ryu, Donghyun (Department of Energy Resources Engineering, Pukyong National University) ;
  • Kim, Ahreum (Department of Energy Resources Engineering, Pukyong National University) ;
  • Ha, Wansoo (Department of Energy Resources Engineering, Pukyong National University)
  • 류동현 (부경대학교 에너지자원공학과) ;
  • 김아름 (부경대학교 에너지자원공학과) ;
  • 하완수 (부경대학교 에너지자원공학과)
  • Received : 2016.07.22
  • Accepted : 2016.08.21
  • Published : 2016.08.31

Abstract

Coarray is a parallel processing technique introduced in the Fortran 2008 standard. Coarray can implement parallel processing using simple syntax. In this research, we examined applicability of Coarray to seismic parallel processing by comparing performance of seismic data processing programs using Coarray and MPI. We compared calculation time using seismic wave propagation modeling and one to one communication time using domain decomposition technique. We also compared performance of parallel reverse-time migration programs using Coarray and MPI. Test results show that the computing speed of Coarray method is similar to that of MPI. On the other hand, MPI has superior communication speed to that of Coarray.

Acknowledgement

Supported by : 부경대학교

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