Importance

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Abstract

In a system in which a plurality of information processing devices that access data stored in one device according to individual clocks are connected, and data regarding access from another device flows through a path relaying the plurality of information processing devices, a data transfer control system that increases data transfer performance between the information processing devices is disclosed. The data transfer control system is provided with: a synchronization control unit that, when a first information processing device obtains reply data by using a communication path sequentially relayed by a plurality of second information processing devices when accessing any of the second information processing devices that access the stored data in the first information processing device in synchronism with the individual clock signals, outputs the reply data generated in synchronism with the individual clock signals in synchronism with a common clock signal for each of the second information processing devices; and a reply transmission means that stores the reply data, output from the synchronization control unit in synchronism with the common clock signal, for a predetermined time and that then transmits the reply data to the second information processing device of the later stage.

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First Claim