INFORMATION PROCESSING SYSTEM, SHARED MEMORY DEVICE, AND METHOD FOR SAVING MEMORY DATA

摘要

An information processing system includes a plurality of clusters and a shared memory device having a shared memory shared by computer programs that operate on the clusters. The shared memory device includes an operating system (OS) stop detecting unit and a solid state drive (SSD) control unit. The OS stop detecting unit detects stop of computer programs that operate on all the clusters allocated to a certain storage area among storage areas of the shared memory shared by the clusters during an operation of the system. The SSD control unit saves, when the OS stop detecting unit detects the stop of the computer programs that operate on all the clusters allocated to the certain storage area, data stored in the certain storage area to a nonvolatile storage area. The information processing system can reduce time required to save data stored in the shared memory device when a power failure occurs.