JpGU-AGU Joint Meeting 2017

講演情報

[EE] ポスター発表

セッション記号 A (大気水圏科学) » A-AS 大気科学・気象学・大気環境

[A-AS12] [EE] 高性能スーパーコンピュータを用いた最新の大気科学

2017年5月20日(土) 15:30 〜 17:00 ポスター会場 (国際展示場 7ホール)

コンビーナ:瀬古 弘(気象研究所)、三好 建正(理化学研究所計算科学研究機構)、小玉 知央(独立行政法人海洋研究開発機構)、滝川 雅之(独立行政法人海洋研究開発機構)

[AAS12-P11] Some advances in the upwind hybridized discontinuous Galerkin method for dynamical cores

Shinhoo Kang1Sriram Krishnan1Stephen Shannon1、*Tan Bui-Thanh1 (1.University of Texas at Austin)

キーワード:hybridizable Discontinuous Galerkin method, Discontinuous Galerkin method, non-hydrostatic model, dynamical core, parallelization

We will present new developments on the emerging Hybridized Discontinuous Galerkin (HDG) method targeting at large-scale and parallel simulation of the dynamical core. In particular, we will present an iterative HDG (iHDG) method that exploits current and future multi-threaded computing system with massive concurrencies. We provide both theoretical justification and numerical results to support the iHDG idea. Furthermore, we also present fast and scalable preconditioning strategies for HDG method that potentially make the HDG approach competitive with the existing methods. Several test cases and models for the dynamical core will be presented to demonstrate the potential of the HDG approach.