TITLE:
A Study on Parallel Computation Based on 3D Forward Algorithm of Gravity
AUTHORS:
Mao Wang, Yuanman Zheng, Changli Yao
KEYWORDS:
Gravity, 3D Forward Modeling, Parallel Algorithm, MPI
JOURNAL NAME:
International Journal of Geosciences,
Vol.8 No.9,
September
15,
2017
ABSTRACT: Interpretation of geophysical material is the prospecting method. Interpretation
of Gravity-megnetic data is based on data processing and inversion.
When the grid is divided into several million cells, the computing task is
heavy and time-consuming. In order to increase efficiency of the 3D forward
modeling, the paper will adopt MPI parallel algorithm and the several
processes will deal with data in the method. Finally, we can gather the result.
Through comparing the result of sequence algorithm with the result of MPI
parallel algorithm, we can see the result is the same. When the number of
processes is 2 to 8, the speed-up ratio is 1.97 to 5. The MPI parallel algorithm
is very efficient.