| 摘要 |
PROBLEM TO BE SOLVED: To safely disconnect a faulty processor from a system by executing cache sweeping in handling a failure of a microprocessor from a sound processor in which no fault occurs. SOLUTION: A multiprocessor system constituted of two or more microprocessors each of which has a write back cache includes: a routing circuit 20 for storing cache states of all the microprocessors; a means for reading tag information stored in the routing circuit 20; a means for specifying a real address space cached in a write-back cache 10 in at least any one of the microprocessors on the basis of the tag information; and a means for reading a specified real address space by other sound microprocessor in which no fault occurs. COPYRIGHT: (C)2009,JPO&INPIT
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