| 摘要 |
PURPOSE: To provide the electronic computer which can recover from a fault at a check point with small memory capacity. CONSTITUTION: Plural processors(PE) 103 and plural storage parts having buffer memories 101 and 102 are mutually connected and one address in one storage part forms a group with one address in each of other storage parts; and the electronic computer is provided with a means which generates parity on the basis of data in corresponding addresses of other storage parts in the same group except one storage part and stores the parity in the corresponding address of the one storage part, a means which stores the buffer 101 of the storage part with data in the write address of the corresponding memory 120 and the difference and address of write data and also writes the write data in the address of the memory when a PE 103 outputs a write request including the write data and address to one of the storage parts, and a means which updates corresponding parity on the basis of the difference and address stored in the buffer 101 when a check point is generated. |
