کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
520204 | 867701 | 2010 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The application of Jacobian-free Newton–Krylov methods to reduce the spin-up time of ocean general circulation models
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In present-day forward time stepping ocean-climate models, capturing both the wind-driven and thermohaline components, a substantial amount of CPU time is needed in a so-called spin-up simulation to determine an equilibrium solution. In this paper, we present methodology based on Jacobian-Free Newton–Krylov methods to reduce the computational time for such a spin-up problem. We apply the method to an idealized configuration of a state-of-the-art ocean model, the Modular Ocean Model version 4 (MOM4). It is shown that a typical speed-up of a factor 10–25 with respect to the original MOM4 code can be achieved and that this speed-up increases with increasing horizontal resolution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 229, Issue 21, 20 October 2010, Pages 8167–8179
Journal: Journal of Computational Physics - Volume 229, Issue 21, 20 October 2010, Pages 8167–8179
نویسندگان
Erik Bernsen, Henk A. Dijkstra, Jonas Thies, Fred W. Wubs,