OpenMP implementation of the horizontal diffusion method of the weather research and forecasting (WRF) model

Abstract

This article analyzes and implements the Horizontal Diffusion method of the Weather Research and Forecast (WRF) model, using the OpenMP API to exploit the multi-core power of an Intel Xeon computer. The main scope of the study is to assess well established concepts related to scalability and cache efficiency by mean of three experiments where the use of appropriate profilers shows to be of great utility to understand computing behavior and consequently to choose some optimization approaches.