Parallel OpenMP and OpenACC Mixing Layer Simulation

Abstract

It is estimated that up to 25% of the grain crop ends up being lost in the post-harvest. The correct drying of the beans is one of the measures to contain this loss. As the grain mass is a set of solid and empty spaces, its drying could be considered a problem of the coupled open-porous medium. In this paper, a mathematical and computer simulation model was proposed, which describes the convection in a free flow with a porous obstacle applied to the drying of the grain. A computational fluid dynamics scheme was implemented in FORTRAN using Finite Volume to simulate and compute the numerical solutions. The code is parallel implemented using OpenMP and OpenACC programming interfaces. As a result, there was a significant reduction in processing time in both cases. The total simulation time was eight times less for a multicore architecture (16 physical cores) and 17.3 times using a single GPU (Quadro M5000).