| 摘要 |
PROBLEM TO BE SOLVED: To provide a parallel computer system achieving speed up of group communication. SOLUTION: Each processor includes: a processing means for transmitting communication time information indicating at least the longest time out of the communication time of the own processor in a communication phase predicted in each communication phase and a synchronization request to a synchronizing apparatus; and a receiving means for receiving execution time information for specifying the execution time of each communication phase and a synchronization completion instruction from the synchronizing apparatus. When receiving the execution time information and the synchronization completion instruction, the processing means starts group communication, and if the communication time of the own processor in each communication phase is not more than the execution time specified by the execution time information in each communication phase, sets a period of the communication phase as the execution time. The synchronizing apparatus includes: a creation means which, when receiving communication time information and the synchronization request from each processor, creates the execution time information based on the communication time information; and a distribution means for distributing the execution time information and the synchronization completion instruction to a plurality of processors. COPYRIGHT: (C)2011,JPO&INPIT
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