| 摘要 |
PROBLEM TO BE SOLVED: To provide data sharing that insures data consistency in a multiprocessor system. SOLUTION: The multiprocessor system comprises a plurality of processors and a shared memory, a shared memory area includes a notification memory area allocated to each processor to perform message exchange between the area and the processor, and a data acquisition request is written in the notification memory area when a first processor acquires data in an allocated memory area of a second processor. By monitoring a data acquisition request in the notification memory area, it is possible to confirm that data are requested, and in such a case, data are copied between allocated areas, and a completion notification showing that the copying is completed is written in the notification memory area. A processor of a side for requesting the data performs processing using the acquired data by confirming the completion notification in the notification memory area. COPYRIGHT: (C)2009,JPO&INPIT
|
