کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10332468 | 687541 | 2013 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Layout-aware scientific computing: A case study using the MILC code
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نظریه محاسباتی و ریاضیات
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چکیده انگلیسی
Nowadays, high performance computers have more cores and nodes than ever before. Computation is spread out among them, leading to more communication cost than before. For this reason, communication can easily become the bottleneck of a system and limit its scalability. The layout of an application on a computer is the key factor to preserve communication locality and reduce its cost. In this paper, we propose a straightforward model to optimize the layout for scientific applications by minimizing inter-node communication cost. The model takes into account the latency and bandwidth of the network and associates them with the dominant layout variables of the application. We take the MILC code as an example and analyze its communication patterns. According to our experimental results, the model developed for the MILC code achieved a satisfactory accuracy for predicting the performance, leading to up to 31% performance improvement.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Computational Science - Volume 4, Issue 6, November 2013, Pages 496-506
Journal: Journal of Computational Science - Volume 4, Issue 6, November 2013, Pages 496-506
نویسندگان
Jun He, Jim Kowalkowski, Marc Paterno, Don Holmgren, James Simone, Xian-He Sun,