Beam-tracing domain decomposition method for urban acoustic pollution

摘要：

　　This paper covers the fast solution of large acoustic problems on low-resources parallel platforms.A domain decomposition method is coupled with a dynamic load balancing scheme to efficiently accelerate a geometrical acoustic method.The geometrical method studied implements a beam-tracing method where intersections are handled as in a ray-tracing method.Beyond the distribution of the global processing upon multiple sub-domains,a second parallelization level is operated by means of multi-threading and shared memory mechanisms.Numerical experiments show that this method allows to handle large scale open domains for parallel computing purposes on few machines.Urban acoustic pollution arrising from car traffic was simulated on a large model of the Shinjuku district of Tokyo,Japan.The good speed-up results illustrate the performance of this new domain decomposition method.

关键词： Domain decomposition methods Parallel and distributed computing Acoustics Ray-tracing methods Beam-tracing methods

作者: Guillaume Gbikpi-Benissan Frédéric Magoulès

作者单位: Ecole Centrale Paris,France

会议类型: 国际会议

会议名称: The 13th International Symposium on Distributed Computing and Applications to Business,Engineering and Science(DCABES 2014)(第十三届分布式计算及其应用国际学术研讨会)

会议地点: 湖北咸宁

会议语种:英文

页码: 162-166

在线出版日期: 2014-11-24（万方平台首次上网日期，不代表论文的发表时间）