The Geographic Information System Based on Distributed Parallel Computation

Geographic Information System (GIS) has been widely used in the geotechnical engineering field, but it is incompetent in real-time computation. In this paper, the Geographic Information System based on distributed parallel computation named GISPC is introduced. The implementation of domain decomposition on the server is the preprocessing of parallel computation. With the method of adopting MPI on Cluster of Workstation (COW) platform in the system, the parallel FEM codes can be implemented by C++ Object-Oriented Programming (OOP) technique. The large-scale geotechnical problems can be successfully solved on PC machine groups by using these techniques. And the system is capable of internet publication. It enables fast storage and retrieval of large amounts of information stored in the server through intranet and internet. The instance of Longtan high slope is shown to prove the applicability of these methods. The results show the feasibility of the proposed methods for the extensive application of GIS in geotechnical engineering.