Development of Persistent Collective Communication Interface for MPI

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K00172
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: High performance computing
• Research Institution: Kyushu University
• Principal Investigator: NANRI TAKESHI 九州大学, 情報基盤研究開発センター, 准教授 (70284578)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 並列計算 / 高性能計算 / 通信効率化

Outline of Final Research Achievements

Collective communication is a set of patterns of group communication that are popularly used in large-scale parallel programs of various fields, such as scientific simulations and data sciences. This project proposed an interface that enables persistent style of collective communication. With this interface, by registering target processes, data locations and data sizes of the communication, overheads for the negotiations of communication can be eliminated. Moreover, the interface provides higher possibility of overlapping communication over computation so that it can hide the time for communication. Results of experiments on the prototype of the proposed interface showed its effects on the optimization of communications.

Free Research Field

計算機科学