Implementation and testing of parallel computation environment in PC LAN under LINUX operating system
Wang Yuan · Journal of Xi'an University of Architecture & Technology · 2007
In order to solve the problem of compute resource which arises in CFD technology,PC LAN with parallel computation was put forward.The LINUX operating system,construction of the local area network(LAN) and implementation of the message passing interface(MPI) were studied in this paper.A parallel computation platform was built and its fundamental working performances were tested by commercial CFD software.The results show that the parallel efficiencies are above 67.9% for two-computer parallel system and 52.8% for four-computer parallel system when a computing grid larger than 0.5 million is used.With the increasing of the grid nodes,the parallel efficiency will be improved gradually.As the grid nodes are close to 200 million,the parallel efficiencies can reach 168.58% and 145.62% respectively for the two parallel systems,and both present the superlinear behavior.