基于MPICH环境下的复杂重力异常体并行正演模拟

任意多面体重力异常正演公式常用于解决复杂几何形态地质体的正演问题。 本文以均匀物性多面体重力异常正演公式为基础, 应用有限元技术中的网格离散化思想, 以任意四面体为基本单元, 通过并行计算技术在MPICH环境下实现了任意连续空间物性分布复杂异常体网格模型的重力异常正演模拟, 通过并行处理可以有效加速正演计算速度。 本文研究结果对于联合重力异常场正演建模和开展复杂模型网格的重力场计算有一定参考意义。

Parallel Forward Simulation of Gravity Anomaly for Complex Bodies Based on MPICH

The forward formula of gravity anomaly for arbitrary polyhedron have been widely used to forward simulate complex geometrical geologic bodies. In this paper, we modeled the gravity anomaly of any complex continuous spatial bodies through parallel simulation in MPICH environment. Taking the tetrahedron as a unit, which is called the cell discretization in finite element method, we calculated the anomaly based on the forward formula of uniform polyhedron. The computing time of forward simulation has been reduced by the parallel procedure in our study.