気象/気候モデルとその並列化(<小特集>地球シミュレータ : そのハードウェアとソフトウェア)

概要

論文の詳細を見る
This paper describes the current state of parallelization of meteorological simulation models. In the spectral method used widely at present, parallel efficiency decreases by the all to all data exchange as the resolution becomes high. Therefore, another technique such as the semi-Lagrange method etc. has been put to practical use. Load imbalance is one of causes by which parallel efficiency is decreased. Various researches are done by a lot of institutions to overcome this problem and the result is applied in each model. Coupler is a software for a large-scale climate simulation. The role of coupler in a parallel environment is a control of the model execution and the resource allocation and a data exchange between models. The Fujin which RIST developed is a parallel framework for meteorological models. Functions of the Fujin are 1) parallelization of serial code, 2) domain nesting and 3) multi model coupling.
日本シミュレーション学会の論文
2001-09-15