Implementing OpenMP Platform for Simulating Erodible Dam-Break using SWE-Exner Model

Dam-break wave simulation over erodible embankment with steep slope topography using shallow water-Exner model has been studied by several researchers. In this paper, the parallel computing for minimizing the CPU time of the SWE-Exner model approximation is elaborated. Here, OpenMP is used to execute the program of erodible dam-break wave simulation in parallel and gives the information about speedup and efficiency with 2 different computers. As the results, computer with AMD Rayzen(TM) 2400 has the best result for speedup with 3.6821 times faster than serial and efficiency 92.0530% when the final time at t = 60 s and N
_x
= 6400 points. Meanwhile, using computer Intel(R) Core(TM) i3-6006U, the speedup and efficiency of parallel computing is obtained 2.03233 times and 50.8083% of serial computing respectively.