Abstract:

In order to improve the computational efficiency of the granule hydrodynamics method (GHM) model, we propose a multi-thread parallel computing model based on OpenMP for multi-core computers. We analyze the primary computational modules and extract the ones that can be paralleled. We then use the OpenMP compiler directive statements and runtime library to realize the parallel computation of the solving process in the GHM model to solve the granules motion equations by using the numerical integration method. Experimental results on Windows platform with 4 cores and 8 threads CPU show that the parallel program's speedup can reach 2.5, which proves that the OpenMP technology can improve the computational efficiency of the GHM significantly, and that it has advantages of easy programming and good portability as well.

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