| 摘要 |
PROBLEM TO BE SOLVED: To prevent a stop of operation of all threads by a cache error caused by one thread in time of multithread operation. SOLUTION: A central processor 10 requires reference to data of a main storage device 30 in each of a plurality of threads. A thread identification information acquisition part 1041b acquires thread identification information for identifying the plurality of threads. An effective MIB detection part 1041b detects the number of primary cache MIBs 1036 holding the reference requirement of a cache to the data of the main storage device 30 in each the thread on the basis of the thread identification information. An MIB control part 1041c performs control to hold the reference requirement in the primary cache MIB 1036 such that the number of the primary cache MIBs 1036 detected in each the thread does not exceed a prescribed number. COPYRIGHT: (C)2006,JPO&NCIPI
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