The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1998
Filed:
Aug. 14, 1996
Kei Kawase, Komaea, JP;
Takao Moriyama, Yokohama, JP;
International Business Machines Corp., Armonk, NY (US);
Abstract
Data sets of sequential data strings at a particular point in time are assigned to processing elements of a multiprocessor system at high speed and processing is executed efficiently in parallel. A mechanism for preventing allocation due to all-read to a cache block which has not yet been referred from another cache is added by providing a reference bit with respect to cache blocks. The reference bit becomes 0 when new data is read to the cache block and becomes 1 when the cache block is referenced by a CPU. In the case of reading data from another cache, if a block corresponding thereto can be replaced without the need to be written back to the other cache and the reference bit is 1, data is fetched to the shared cache memory.