کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6933337 867743 2013 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An analytic model for the convergence of turbulent simulations time-parallelized via the parareal algorithm
ترجمه فارسی عنوان
یک مدل تحلیلی برای همگرایی شبیه سازی آشفته زمانی که از طریق الگوریتم پارآرالالورالیزه شده است
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
Parareal is a recent time parallelization algorithm based on a predictor-corrector mechanism. Recently, it has been applied for the first time to a fully-developed plasma turbulent simulation, and a qualitative understanding of how parareal converges exists for this case. In this paper, we construct an analytical framework of the process of convergence that should be applicable to parareal simulations of general turbulent systems. This framework allows one to gain a quantitative understanding of the dependence of the convergence on the physics of the problem and the choices that must be made to implement parareal. The analytical knowledge provided by this new framework can be used to optimize the implementation of parareal. We illustrate the inner workings of the framework and demonstrate its predictive capabilities by applying it to the modeling of the parareal convergence of drift-wave plasma turbulent simulations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Physics - Volume 255, 15 December 2013, Pages 293-315
نویسندگان
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