| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| 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.
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