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The 179th R-CCS Cafe -part Ⅱ

The 179th R-CCS Cafe -part Ⅱ
Date and Time: Thu. Aug. 22, 2019, 14:40 - 15:20
Place: Lecture Hall (6th floor) at R-CCS

Title: Modelizing communication hiding for high-performance strong scaling
Speaker: Masatoshi Kawai (HPC Usability Research Team)

Presentation Language: English
Presentation Material: English

Abstract:

Communication hiding is a well-known approach for realizing the higher performance of applications. Especially, to get ideal parallel performance with strong scaling, effective communication hiding essential. However, in some applications, we can not hide communications as we expect. In this study, we modelize communication hiding for each application and system. By this model, we judge the communication hiding is useful or not. In this talk, we discuss the validity of the model with general stencil problems.