کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
503060 863736 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improvements of the particle-in-cell code EUTERPE for petascaling machines
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Improvements of the particle-in-cell code EUTERPE for petascaling machines
چکیده انگلیسی

In the present work we report some performance measures and computational improvements recently carried out using the gyrokinetic code EUTERPE (Jost, 2000 [1] and Jost et al., 1999 [2]), which is based on the general particle-in-cell (PIC) method. The scalability of the code has been studied for up to sixty thousand processing elements and some steps towards a complete hybridization of the code were made. As a numerical example, non-linear simulations of Ion Temperature Gradient (ITG) instabilities have been carried out in screw-pinch geometry and the results are compared with earlier works. A parametric study of the influence of variables (step size of the time integrator, number of markers, grid size) on the quality of the simulation is presented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Physics Communications - Volume 182, Issue 9, September 2011, Pages 2047–2051
نویسندگان
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