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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 하완수
- 발행연도
- 2017
- 저작권
- 부경대학교 논문은 저작권에 의해 보호받습니다.
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초록· 키워드
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In this study, we parallelized three-dimensional wave propagation modeling in time-frequency domain and time-laplace domain using OpenACC and GPU for effective calculation.
The three-dimensional wave propagation modeling in time-frequency domain and time-laplace domain makes respectively a wavefield in frequency and laplace domain and it calculates wave propagation modeling in time domain through fourier transform and laplace transform at the same time. Therefore, It saves executive time and solves memory problem. The OpenACC used in the study has feature that is easy to use simply by adding directives in C,C++ and Fortran programming languages. So, It doesn’t have to learn new programming languages like a CUDA or an OpenCL. The OpenACC allocates GPU memory space, copies data between CPU and GPU and operates depending on automatic or customization. The three-dimensional EAGE/SEG Salt modeling program using OpenACC and GPU is 53 times and 30 times faster than single CPU core in time-frequency domain and time-laplace domain respectively.
The three-dimensional wave propagation modeling in time-frequency domain and time-laplace domain makes respectively a wavefield in frequency and laplace domain and it calculates wave propagation modeling in time domain through fourier transform and laplace transform at the same time. Therefore, It saves executive time and solves memory problem. The OpenACC used in the study has feature that is easy to use simply by adding directives in C,C++ and Fortran programming languages. So, It doesn’t have to learn new programming languages like a CUDA or an OpenCL. The OpenACC allocates GPU memory space, copies data between CPU and GPU and operates depending on automatic or customization. The three-dimensional EAGE/SEG Salt modeling program using OpenACC and GPU is 53 times and 30 times faster than single CPU core in time-frequency domain and time-laplace domain respectively.
목차
1. 서 론 12. GPU 32.1 GPU 구조 32.2 GPU 사양 63. OpenACC 소개 83.1 OpenACC 83.2 OpenACC 지시어 104. OpenACC 적용 144.1 3차원 시간-주파수영역 파동전파모델링 144.1.1 3차원 반무한 균질 매질 184.1.2 SEG/EAGE 암염돔 속도모델 적용 194.1.3 정확성 비교 234.2 3차원 시간-주파수영역 파동전파모델링 254.2.1 3차원 반무한 균질 매질 294.2.2 SEG/EAGE 암염돔 속도모델 적용 304.2.3 정확성 비교 345. 토의 및 결론 36참고 문헌 38
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