Asynchronous and synchronous models of executions on Intel^® Xeon Phi™ coprocessor systems for high performance of long wave radiation calculations in atmosphere models

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• 作者：Amlesh Kashyap^aAuthor Vitae ; Sathish S. Vadhiyar^a ; ^{vss@cds.iisc.ac.in}Author Vitae ; Ravi S. Nanjundiah^b ; ^{ravi@caos.iisc.ernet.in}Author Vitae ; P.N. Vinayachandran^b ; ^{vinay@caos.iisc.ernet.in}Author Vitae
• 关键词：Intel Xeon Phi co-processors ; Offloading ; CAM ; Long-wave radiations
• 刊名：Journal of Parallel and Distributed Computing
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：102
• 期：Complete
• 页码：199-212
• 全文大小：1895 K
• 卷排序：102

文摘

Asynchronous and synchronous executions models for radiations on Intel Xeon Phi. Techniques including loop rearrangement and early placement, low-cost substitutions. Performance improvement of up to 45% due to our asynchronous model. Wall-clock time savings of up to 2.25 years for multi-century climate simulations. Performance improvement of up to 70% due to our synchronous model.